Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / Host / Serialization / CodeDomDesignerLoader.cs / 1 / CodeDomDesignerLoader.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.ComponentModel.Design.Serialization {
using System;
using System.CodeDom;
using System.CodeDom.Compiler;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Design;
using System.Diagnostics;
using System.Globalization;
using System.Reflection;
using System.Text;
using System.Windows.Forms;
using Microsoft.Internal.Performance;
///
/// DesignerLoader. This class is responsible for loading a designer document.
/// Where and how this load occurs is a private matter for the designer loader.
/// The designer loader will be handed to an IDesignerHost instance. This instance,
/// when it is ready to load the document, will call BeginLoad, passing an instance
/// of IDesignerLoaderHost. The designer loader will load up the design surface
/// using the host interface, and call EndLoad on the interface when it is done.
/// The error collection passed into EndLoad should be empty or null to indicate a
/// successful load, or it should contain a collection of exceptions that
/// describe the error.
///
/// Once a document is loaded, the designer loader is also responsible for
/// writing any changes made to the document back whatever storage the
/// loader used when loading the document.
///
[System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.InheritanceDemand, Name = "FullTrust")]
[System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.LinkDemand, Name = "FullTrust")]
public abstract class CodeDomDesignerLoader : BasicDesignerLoader, INameCreationService, IDesignerSerializationService {
private static TraceSwitch traceCDLoader = new TraceSwitch("CodeDomDesignerLoader", "Trace CodeDomDesignerLoader");
private static CodeMarkers codemarkers = CodeMarkers.Instance;
private static readonly int StateCodeDomDirty = BitVector32.CreateMask(); // True if the code dom tree is dirty, meaning it must be integrated back with the code file.
private static readonly int StateCodeParserChecked = BitVector32.CreateMask(StateCodeDomDirty); // True if we have searched for a parser.
private static readonly int StateOwnTypeResolution = BitVector32.CreateMask(StateCodeParserChecked); // True if we have added our own type resolution service
// State for the designer loader.
//
private BitVector32 _state = new BitVector32();
private IExtenderProvider[] _extenderProviders;
private IExtenderProviderService _extenderProviderService;
// State for the code dom parser / generator
//
private ICodeGenerator _codeGenerator;
// The following fields are setup by EnsureDocument and deleted by ClearDocument.
//
private CodeDomSerializer _rootSerializer;
private TypeCodeDomSerializer _typeSerializer;
private CodeCompileUnit _documentCompileUnit;
private CodeNamespace _documentNamespace;
private CodeTypeDeclaration _documentType;
///
/// This abstract property returns the code dom provider that should
/// be used by this designer loader.
///
protected abstract CodeDomProvider CodeDomProvider { get; }
///
/// The TypeResolutionService property returns a type resolution service that the code dom
/// serializers will use when resolving types. The CodeDomDesignerLoader automatically
/// adds this type resolver as a service to the service container during Initialize if it
/// is non-null. While the type resolution service is optional in many scenarios, it is required for
/// code interpretation because source code contains type names, but no assembly references.
///
protected abstract ITypeResolutionService TypeResolutionService { get; }
///
/// This is the reverse of EnsureDocument. It clears the document state which will
/// cause us to parse the next time we need to access it.
///
private void ClearDocument() {
if (_documentType != null) {
LoaderHost.RemoveService(typeof(CodeTypeDeclaration));
_documentType = null;
_documentNamespace = null;
_documentCompileUnit = null;
_rootSerializer = null;
_typeSerializer = null;
}
}
///
/// Disposes this designer loader. The designer host will call
/// this method when the design document itself is being destroyed.
/// Once called, the designer loader will never be called again.
/// This implementation flushes any changes and removes any
/// previously added services.
///
public override void Dispose() {
IDesignerHost host = GetService(typeof(IDesignerHost)) as IDesignerHost;
IComponentChangeService cs = GetService(typeof(IComponentChangeService)) as IComponentChangeService;
if (cs != null) {
cs.ComponentRemoved -= new ComponentEventHandler(this.OnComponentRemoved);
cs.ComponentRename -= new ComponentRenameEventHandler(OnComponentRename);
}
if (host != null) {
host.RemoveService(typeof(INameCreationService));
host.RemoveService(typeof(IDesignerSerializationService));
host.RemoveService(typeof(ComponentSerializationService));
if (_state[StateOwnTypeResolution]) {
host.RemoveService(typeof(ITypeResolutionService));
_state[StateOwnTypeResolution] = false;
}
}
if (_extenderProviderService != null) {
foreach (IExtenderProvider p in _extenderProviders) {
_extenderProviderService.RemoveExtenderProvider(p);
}
}
base.Dispose();
}
///
/// Internal debug method to dump a code dom tree to text.
///
#if DEBUG
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2102:CatchNonClsCompliantExceptionsInGeneralHandlers")]
internal static void DumpTypeDeclaration(CodeTypeDeclaration typeDecl) {
if (typeDecl == null || !traceCDLoader.TraceVerbose) {
return;
}
#pragma warning disable 618
ICodeGenerator codeGenerator = new Microsoft.CSharp.CSharpCodeProvider().CreateGenerator();
#pragma warning restore 618
System.IO.StringWriter sw = new System.IO.StringWriter(CultureInfo.InvariantCulture);
try {
codeGenerator.GenerateCodeFromType(typeDecl, sw, null);
}
catch (Exception ex) {
sw.WriteLine("Error during declaration dump: " + ex.Message);
}
// spit this line by line so it respects the indent.
//
System.IO.StringReader sr = new System.IO.StringReader(sw.ToString());
for (string ln = sr.ReadLine(); ln != null; ln = sr.ReadLine()) {
Debug.WriteLine(ln);
}
}
#endif
/// returns true if the given type has a root designer.
private bool HasRootDesignerAttribute(Type t) {
AttributeCollection attributes = TypeDescriptor.GetAttributes(t);
for (int i = 0; i < attributes.Count; i++)
{
DesignerAttribute da = attributes[i] as DesignerAttribute;
if (da != null) {
Type attributeBaseType = Type.GetType(da.DesignerBaseTypeName);
if (attributeBaseType != null && attributeBaseType == typeof(IRootDesigner)) {
return true;
}
}
}
return false;
}
///
/// This ensures that we can load the code dom elements into a
/// document. It ensures that there is a code dom provider, that
/// the provider can parse the code, and that the returned
/// code compile unit contains a class that can be deserialized
/// through a code dom serializer. During all of this checking
/// it establishes state in our member variables so that
/// calls after it can assume that the variables are set. This
/// will throw a human readable exception if any part of the
/// process fails.
///
private void EnsureDocument(IDesignerSerializationManager manager) {
Debug.Assert(manager != null, "Should pass a serialization manager into EnsureDocument");
// If we do not yet have the compile unit, ask for it.
//
if (_documentCompileUnit == null) {
Debug.Assert(_documentType == null && _documentNamespace == null, "We have no compile unit but we still have a type or namespace. Our state is inconsistent.");
_documentCompileUnit = Parse();
if (_documentCompileUnit == null) {
Exception ex = new NotSupportedException(SR.GetString(SR.CodeDomDesignerLoaderNoLanguageSupport));
ex.HelpLink = SR.CodeDomDesignerLoaderNoLanguageSupport;
throw ex;
}
}
// Search namespaces and types to identify something that we can
// load.
//
if (_documentType == null) {
// We keep track of any failures here. If we failed to find a type this
// array list will contain a list of strings listing what we have
// tried.
//
ArrayList failures = null;
bool firstClass = true;
if(_documentCompileUnit.UserData[typeof(InvalidOperationException)] != null) {
InvalidOperationException invalidOp = _documentCompileUnit.UserData[typeof(InvalidOperationException)] as InvalidOperationException;
if(invalidOp != null) {
_documentCompileUnit = null; // not efficient but really a corner case...
throw invalidOp;
}
}
// Look in the compile unit for a class we can load. The first one we find
// that has an appropriate serializer attribute, we take.
//
foreach (CodeNamespace ns in _documentCompileUnit.Namespaces) {
foreach (CodeTypeDeclaration typeDecl in ns.Types) {
// Uncover the base type of this class. In case we totally fail
// we document each time we were unable to load a particular
// class.
//
Type baseType = null;
foreach (CodeTypeReference typeRef in typeDecl.BaseTypes) {
Type t = LoaderHost.GetType(CodeDomSerializerBase.GetTypeNameFromCodeTypeReference(manager, typeRef));
if (t != null && !(t.IsInterface)) {
baseType = t;
break;
}
if (t == null) {
if (failures == null) {
failures = new ArrayList();
}
failures.Add(SR.GetString(SR.CodeDomDesignerLoaderDocumentFailureTypeNotFound, typeDecl.Name, typeRef.BaseType));
}
}
// We have a potential type. The next step is to examine the type's attributes
// and see if there is a root designer serializer attribute that supports the
// code dom.
//
if (baseType != null) {
bool foundAttribute = false;
// Backwards Compat: RootDesignerSerializer is obsolete, but we need to still
// be compatible and read it.
// Walk the member attributes for this type, looking for an appropriate serializer
// attribute.
//
#pragma warning disable 0618
AttributeCollection attributes = TypeDescriptor.GetAttributes(baseType);
foreach (Attribute attr in attributes) {
if (attr is RootDesignerSerializerAttribute) {
RootDesignerSerializerAttribute ra = (RootDesignerSerializerAttribute)attr;
string typeName = ra.SerializerBaseTypeName;
// This serializer must support a CodeDomSerializer or we're not interested.
//
if (typeName != null && LoaderHost.GetType(typeName) == typeof(CodeDomSerializer)) {
Type serializerType = LoaderHost.GetType(ra.SerializerTypeName);
if (serializerType != null && serializerType != typeof(RootCodeDomSerializer)) {
foundAttribute = true;
if (firstClass) {
_rootSerializer = (CodeDomSerializer)Activator.CreateInstance(serializerType, BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.CreateInstance, null, null, null);
break;
}
else {
throw new InvalidOperationException(SR.GetString(SR.CodeDomDesignerLoaderSerializerTypeNotFirstType, typeDecl.Name));
}
}
}
}
}
#pragma warning restore 0618
//add a check for root designer -- this allows an extra level of checking so we can skip classes
//that cannot be designed.
if (_rootSerializer == null && HasRootDesignerAttribute(baseType)) {
_typeSerializer = manager.GetSerializer(baseType, typeof(TypeCodeDomSerializer)) as TypeCodeDomSerializer;
if (!firstClass && _typeSerializer != null) {
_typeSerializer = null;
_documentCompileUnit = null;
throw new InvalidOperationException(SR.GetString(SR.CodeDomDesignerLoaderSerializerTypeNotFirstType, typeDecl.Name));
}
}
// If we didn't find a serializer for this type, report it.
//
if (_rootSerializer == null && _typeSerializer == null) {
if (failures == null) {
failures = new ArrayList();
}
if (foundAttribute) {
failures.Add(SR.GetString(SR.CodeDomDesignerLoaderDocumentFailureTypeDesignerNotInstalled, typeDecl.Name, baseType.FullName));
}
else {
failures.Add(SR.GetString(SR.CodeDomDesignerLoaderDocumentFailureTypeNotDesignable, typeDecl.Name, baseType.FullName));
}
}
}
// If we found a serializer, then we're done. Save this type and namespace for later
// use.
//
if (_rootSerializer != null || _typeSerializer != null) {
_documentNamespace = ns;
_documentType = typeDecl;
break;
}
firstClass = false;
}
if (_documentType != null) {
break;
}
}
// If we did not get a document type, throw, because we're unable to continue.
//
if (_documentType == null) {
// The entire compile unit needs to be thrown away so
// we can later reparse.
//
_documentCompileUnit = null;
// Did we get any reasons why we can't load this document? If so, synthesize a nice
// description to the user.
//
Exception ex;
if (failures != null) {
StringBuilder builder = new StringBuilder();
foreach (string failure in failures) {
builder.Append("\r\n");
builder.Append(failure);
}
ex = new InvalidOperationException(SR.GetString(SR.CodeDomDesignerLoaderNoRootSerializerWithFailures, builder.ToString()));
ex.HelpLink = SR.CodeDomDesignerLoaderNoRootSerializer;
}
else {
ex = new InvalidOperationException(SR.GetString(SR.CodeDomDesignerLoaderNoRootSerializer));
ex.HelpLink = SR.CodeDomDesignerLoaderNoRootSerializer;
}
throw ex;
}
else {
// We are successful. At this point, we want to provide some of these
// code dom elements as services for outside parties to use.
//
LoaderHost.AddService(typeof(CodeTypeDeclaration), _documentType);
}
}
codemarkers.CodeMarker(CodeMarkerEvent.perfFXGetDocumentType);
}
///
/// Takes the given code element and integrates it into the existing CodeDom
/// tree stored in _documentCompileUnit. This returns true if any changes
/// were made to the tree.
///
private bool IntegrateSerializedTree(IDesignerSerializationManager manager, CodeTypeDeclaration newDecl) {
EnsureDocument(manager);
CodeTypeDeclaration docDecl = _documentType;
bool caseInsensitive = false;
bool codeDomDirty = false;
CodeDomProvider provider = CodeDomProvider;
if (provider != null) {
caseInsensitive = ((provider.LanguageOptions & LanguageOptions.CaseInsensitive) != 0);
}
// Update the class name of the code type, in case it is different.
//
if (!string.Equals(docDecl.Name, newDecl.Name, caseInsensitive ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal)) {
docDecl.Name = newDecl.Name;
codeDomDirty = true;
}
if (!docDecl.Attributes.Equals(newDecl.Attributes)) {
docDecl.Attributes = newDecl.Attributes;
codeDomDirty = true;
}
// Now, hash up the member names in the document and use this
// when determining what to add and what to replace. In addition,
// we also build up a set of indexes into approximate locations for
// inserting fields and methods.
//
int fieldInsertLocation = 0;
bool lockField = false;
int methodInsertLocation = 0;
bool lockMethod = false;
IDictionary docMemberHash = new HybridDictionary(docDecl.Members.Count, caseInsensitive);
int memberCount = docDecl.Members.Count;
for (int i = 0; i < memberCount; i++) {
CodeTypeMember member = docDecl.Members[i];
string memberName;
if (member is CodeConstructor) {
memberName = ".ctor";
}
else if (member is CodeTypeConstructor) {
memberName = ".cctor";
}
else {
memberName = member.Name;
}
docMemberHash[memberName] = i;
if (member is CodeMemberField) {
if (!lockField) {
fieldInsertLocation = i;
}
}
else {
if (fieldInsertLocation > 0) {
lockField = true;
}
}
if (member is CodeMemberMethod) {
if (!lockMethod) {
methodInsertLocation = i;
}
}
else {
if (methodInsertLocation > 0) {
lockMethod = true;
}
}
}
// Now start looking through the new declaration and process it.
// We are index driven, so if we need to add new values we put
// them into an array list, and post process them.
//
ArrayList newElements = new ArrayList();
foreach (CodeTypeMember member in newDecl.Members) {
string memberName;
if (member is CodeConstructor) {
memberName = ".ctor";
}
else {
memberName = member.Name;
}
object existingSlot = docMemberHash[memberName];
if (existingSlot != null) {
int slot = (int)existingSlot;
CodeTypeMember existingMember = docDecl.Members[slot];
if (existingMember == member) {
continue;
}
if (member is CodeMemberField) {
if (existingMember is CodeMemberField) {
CodeMemberField docField = (CodeMemberField)existingMember;
CodeMemberField newField = (CodeMemberField)member;
// We will be case-sensitive always in working out whether to replace the field
if ((string.Equals(newField.Name, docField.Name)) && newField.Attributes == docField.Attributes && TypesEqual(newField.Type, docField.Type)) {
continue;
}
else {
docDecl.Members[slot] = member;
}
}
else {
// We adding a field with the same name as a method. This should cause a
// compile error, but we don't want to clobber the existing method.
newElements.Add(member);
}
}
else if (member is CodeMemberMethod) {
if (existingMember is CodeMemberMethod) {
// If there is an existing constructor, preserve it.
if (!(existingMember is CodeConstructor)) {
// For methods, we do not want to replace the method; rather, we
// just want to replace its contents. This helps to preserve
// the layout of the file.
//
CodeMemberMethod existingMethod = (CodeMemberMethod)existingMember;
CodeMemberMethod newMethod = (CodeMemberMethod)member;
existingMethod.Statements.Clear();
existingMethod.Statements.AddRange(newMethod.Statements);
}
}
}
else {
docDecl.Members[slot] = member;
}
codeDomDirty = true;
}
else {
newElements.Add(member);
}
}
// Now, process all new elements.
//
foreach (CodeTypeMember member in newElements) {
if (member is CodeMemberField) {
if (fieldInsertLocation >= docDecl.Members.Count) {
docDecl.Members.Add(member);
}
else {
docDecl.Members.Insert(fieldInsertLocation, member);
}
fieldInsertLocation++;
methodInsertLocation++;
codeDomDirty = true;
}
else if (member is CodeMemberMethod) {
if (methodInsertLocation >= docDecl.Members.Count) {
docDecl.Members.Add(member);
}
else {
docDecl.Members.Insert(methodInsertLocation, member);
}
methodInsertLocation++;
codeDomDirty = true;
}
else {
// For rare members, just add them to the end.
//
docDecl.Members.Add(member);
codeDomDirty = true;
}
}
return codeDomDirty;
}
///
/// This method is called immediately after the first time
/// BeginLoad is invoked. This is an appopriate place to
/// add custom services to the loader host. Remember to
/// remove any custom services you add here by overriding
/// Dispose.
///
protected override void Initialize() {
base.Initialize();
ServiceCreatorCallback callback = new ServiceCreatorCallback(OnCreateService);
LoaderHost.AddService(typeof(ComponentSerializationService), callback);
LoaderHost.AddService(typeof(INameCreationService), this);
LoaderHost.AddService(typeof(IDesignerSerializationService), this);
// The code dom desinger loader requires a working ITypeResolutionService to
// function. See if someone added one already, and if not, provide
// our own.
if (GetService(typeof(ITypeResolutionService)) == null) {
ITypeResolutionService trs = TypeResolutionService;
if (trs == null) {
throw new InvalidOperationException(SR.GetString(SR.CodeDomDesignerLoaderNoTypeResolution));
}
LoaderHost.AddService(typeof(ITypeResolutionService), trs);
_state[StateOwnTypeResolution] = true;
}
_extenderProviderService = GetService(typeof(IExtenderProviderService)) as IExtenderProviderService;
if (_extenderProviderService != null) {
_extenderProviders = new IExtenderProvider[] {
new ModifiersExtenderProvider(),
new ModifiersInheritedExtenderProvider()
};
foreach (IExtenderProvider p in _extenderProviders) {
_extenderProviderService.AddExtenderProvider(p);
}
}
}
///
/// Determines if the designer needs to be reloaded. It does this
/// by examining the code dom tree for changes. This does not check
/// for outside infleuences; the caller should already think a reload
/// is needed -- this is just a last optimization.
///
protected override bool IsReloadNeeded() {
if (!base.IsReloadNeeded()) {
return false;
}
// If we have no document, we definitely need a reload.
//
if (_documentType == null) {
return true;
}
// If we can't get to a code dom provider, or if that provider doesn't
// implement ICodeDomDesignerReload, we can't optimize the reload, so we
// just assume it is needed.
//
ICodeDomDesignerReload reloader = CodeDomProvider as ICodeDomDesignerReload;
if (reloader == null) {
return true;
}
bool reload = true;
// Parse the file and see if we actually need to reload.
//
string oldTypeName = _documentType.Name;
// StartTimingMark();
try {
ClearDocument();
EnsureDocument(GetService(typeof(IDesignerSerializationManager)) as IDesignerSerializationManager);
}
catch {
// If the document is not in a state where we can get any information
// from it, we will assume this is a reload. The error will then
// be displayed to the user when the designer does actually
// reload.
}
// EndTimingMark("Reload Parse I");
if (_documentCompileUnit != null) {
reload = reloader.ShouldReloadDesigner(_documentCompileUnit);
reload |= (_documentType == null || !_documentType.Name.Equals(oldTypeName));
}
return reload;
}
///
/// This method should be called by the designer loader service
/// when the first dependent load has started. This initializes
/// the state of the code dom loader and prepares it for loading.
/// By default, the designer loader provides
/// IDesignerLoaderService itself, so this is called automatically.
/// If you provide your own loader service, or if you choose not
/// to provide a loader service, you are responsible for calling
/// this method. BeginLoad will automatically call this, either
/// indirectly by calling AddLoadDependency if IDesignerLoaderService
/// is available, or directly if it is not.
///
protected override void OnBeginLoad() {
// Make sure that we're removed any event sinks we added after we finished the load.
//
IComponentChangeService cs = (IComponentChangeService)GetService(typeof(IComponentChangeService));
if (cs != null) {
cs.ComponentRemoved -= new ComponentEventHandler(this.OnComponentRemoved);
cs.ComponentRename -= new ComponentRenameEventHandler(OnComponentRename);
}
base.OnBeginLoad();
}
///
/// This method is called immediately before the document is unloaded.
/// The document may be unloaded in preparation for reload, or
/// if the document failed the load. If you added document-specific
/// services in OnBeginLoad or OnEndLoad, you should remove them
/// here.
///
protected override void OnBeginUnload() {
base.OnBeginUnload();
ClearDocument();
}
///
/// This is called whenever a component is removed from the design surface.
///
private void OnComponentRemoved(object sender, ComponentEventArgs e) {
string name = e.Component.Site.Name;
RemoveDeclaration(name);
}
///
/// Raised by the host when a component is renamed. Here we dirty ourselves
/// and then whack the component declaration. At the next code gen
/// cycle we will recreate the declaration.
///
private void OnComponentRename(object sender, ComponentRenameEventArgs e) {
OnComponentRename(e.Component, e.OldName, e.NewName);
}
///
/// Callback to create our demand-created services.
///
private object OnCreateService(IServiceContainer container, Type serviceType) {
if (serviceType == typeof(ComponentSerializationService)) {
return new CodeDomComponentSerializationService(LoaderHost);
}
Debug.Fail("Called to create unknown service.");
return null;
}
///
/// This method should be called by the designer loader service
/// when all dependent loads have been completed. This
/// "shuts down" the loading process that was initiated by
/// BeginLoad. By default, the designer loader provides
/// IDesignerLoaderService itself, so this is called automatically.
/// If you provide your own loader service, or if you choose not
/// to provide a loader service, you are responsible for calling
/// this method. BeginLoad will automatically call this, either
/// indirectly by calling DependentLoadComplete if IDesignerLoaderService
/// is available, or directly if it is not.
///
protected override void OnEndLoad(bool successful, ICollection errors) {
base.OnEndLoad(successful, errors);
if (successful) {
// After a successful load we will want to monitor a bunch of events so we know when
// to make the loader dirty.
//
IComponentChangeService cs = (IComponentChangeService)GetService(typeof(IComponentChangeService));
if (cs != null) {
cs.ComponentRemoved += new ComponentEventHandler(this.OnComponentRemoved);
cs.ComponentRename += new ComponentRenameEventHandler(OnComponentRename);
}
}
}
///
/// This abstract method is called when it is time to
/// parse the source code and create a CodeDom tree.
///
protected abstract CodeCompileUnit Parse();
///
/// Overrides BasicDesignerLoader's PerformFlush method to actual
/// write out the code dom tree.
///
protected override void PerformFlush(IDesignerSerializationManager manager) {
CodeTypeDeclaration typeDecl = null;
// Ask the serializer for the root component to serialize. This should return
// a CodeTypeDeclaration, which we will plug into our existing code DOM tree.
//
Debug.Assert(_rootSerializer != null || _typeSerializer != null, "What are we saving right now? Base component has no serializer: " + LoaderHost.RootComponent.GetType().FullName);
if (_rootSerializer != null) {
typeDecl = _rootSerializer.Serialize(manager, LoaderHost.RootComponent) as CodeTypeDeclaration;
Debug.Assert(typeDecl != null, "Root CodeDom serializer must return a CodeTypeDeclaration");
}
else if (_typeSerializer != null) {
typeDecl = _typeSerializer.Serialize(manager, LoaderHost.RootComponent, LoaderHost.Container.Components);
}
#if DEBUG
if (traceCDLoader.TraceVerbose) {
Debug.WriteLine("****************** Pre-integrated tree **********************");
DumpTypeDeclaration(typeDecl);
EnsureDocument(manager);
Debug.WriteLine("****************** Live tree **********************");
DumpTypeDeclaration(_documentType);
}
#endif
codemarkers.CodeMarker(CodeMarkerEvent.perfFXGenerateCodeTreeEnd);
// Now we must integrate the code DOM tree from the serializer with
// our own tree. If changes were made to the tree this will
// return true.
//
if (typeDecl != null && IntegrateSerializedTree(manager, typeDecl)) {
codemarkers.CodeMarker(CodeMarkerEvent.perfFXIntegrateSerializedTreeEnd);
#if DEBUG
if (traceCDLoader.TraceVerbose) {
Debug.WriteLine("****************** Integrated tree **********************");
DumpTypeDeclaration(_documentType);
}
#endif
// EndTimingMark("Serialize tree");
// StartTimingMark();
Write(_documentCompileUnit);
// EndTimingMark("Generate unit total");
}
else {
Debug.WriteLineIf(traceCDLoader.TraceVerbose, "No need to integrate tree; no changes detected");
}
}
///
/// Overrides BasicDesignerLoader's PerformLoad method to deserialize the
/// classes from the code dom.
///
protected override void PerformLoad(IDesignerSerializationManager manager) {
// This ensures that all of the state for the document is available. This
// will throw if state we need to load cannot be obtained.
//
EnsureDocument(manager);
// Ok, now we have a document, and a root serializer and a namespace. Or,
// at least we better.
Debug.Assert(_documentType != null, "EnsureDocument didn't create a document type");
Debug.Assert(_documentNamespace != null, "EnsureDocument didn't create a document namespace");
Debug.Assert(_rootSerializer != null || _typeSerializer != null, "EnsureDocument didn't create a root serializer");
// StartTimingMark();
codemarkers.CodeMarker(CodeMarkerEvent.perfFXDeserializeStart);
if (_rootSerializer != null) {
_rootSerializer.Deserialize(manager, _documentType);
}
else {
_typeSerializer.Deserialize(manager, _documentType);
}
codemarkers.CodeMarker(CodeMarkerEvent.perfFXDeserializeEnd);
// EndTimingMark("Deserialize document");
string baseComp = string.Format(CultureInfo.CurrentCulture, "{0}.{1}", _documentNamespace.Name, _documentType.Name);
SetBaseComponentClassName(baseComp);
}
///
/// This virtual method gets override in the VsCodeDomDesignerLoader to call the RenameElement on the
/// ChangeNotificationService to rename the component name through out the project scope.
///
protected virtual void OnComponentRename(object component, string oldName, string newName)
{
if (LoaderHost.RootComponent == component) {
if (_documentType != null) {
_documentType.Name = newName;
}
} else {
if (_documentType != null) {
CodeTypeMemberCollection members = _documentType.Members;
for (int i = 0; i < members.Count; i++) {
if (members[i] is CodeMemberField
&& members[i].Name.Equals(oldName)
&& ((CodeMemberField)members[i]).Type.BaseType.Equals(TypeDescriptor.GetClassName(component))) {
members[i].Name = newName;
break;
}
}
}
}
}
///
/// This is called when a component is deleted or renamed. We remove
/// the component's declaration here, if it exists.
///
private void RemoveDeclaration(string name) {
if (_documentType != null) {
CodeTypeMemberCollection members = _documentType.Members;
for (int i = 0; i < members.Count; i++) {
if (members[i] is CodeMemberField && members[i].Name.Equals(name)) {
((IList)members).RemoveAt(i);
break;
}
}
}
}
///
/// Simple helper routine that will throw an exception if we need a service, but cannot get
/// to it. You should only throw for missing services that are absolutely essential for
/// operation. If there is a way to gracefully degrade, then you should do it.
///
private void ThrowMissingService(Type serviceType) {
Exception ex = new InvalidOperationException(SR.GetString(SR.BasicDesignerLoaderMissingService, serviceType.Name));
ex.HelpLink = SR.BasicDesignerLoaderMissingService;
throw ex;
}
///
/// Determines of two type references are equal.
///
private static bool TypesEqual(CodeTypeReference typeLeft, CodeTypeReference typeRight) {
if (typeLeft.ArrayRank != typeRight.ArrayRank) return false;
if (!typeLeft.BaseType.Equals(typeRight.BaseType)) return false;
if (typeLeft.TypeArguments != null && typeRight.TypeArguments == null) return false;
if (typeLeft.TypeArguments == null && typeRight.TypeArguments != null) return false;
if (typeLeft.TypeArguments != null && typeRight.TypeArguments != null) {
if (typeLeft.TypeArguments.Count != typeRight.TypeArguments.Count) return false;
for (int i = 0; i < typeLeft.TypeArguments.Count; i++) {
if (!TypesEqual(typeLeft.TypeArguments[i], typeRight.TypeArguments[i])) return false;
}
}
if (typeLeft.ArrayRank > 0) {
return TypesEqual(typeLeft.ArrayElementType, typeRight.ArrayElementType);
}
return true;
}
///
/// This abstract method is called in response to a Flush
/// call when the designer loader is dirty. It will pass
/// a new CodeCompileUnit that represents the source code
/// needed to recreate the current designer's component
/// graph.
///
protected abstract void Write(CodeCompileUnit unit);
///
/// Deserializes the provided serialization data object and
/// returns a collection of objects contained within that
/// data.
///
ICollection IDesignerSerializationService.Deserialize(object serializationData) {
if (!(serializationData is SerializationStore)) {
Exception ex = new ArgumentException(SR.GetString(SR.CodeDomDesignerLoaderBadSerializationObject));
ex.HelpLink = SR.CodeDomDesignerLoaderBadSerializationObject;
throw ex;
}
ComponentSerializationService css = GetService(typeof(ComponentSerializationService)) as ComponentSerializationService;
if (css == null) {
ThrowMissingService(typeof(ComponentSerializationService));
}
return css.Deserialize((SerializationStore)serializationData, LoaderHost.Container);
}
///
/// Serializes the given collection of objects and
/// stores them in an opaque serialization data object.
/// The returning object fully supports runtime serialization.
///
object IDesignerSerializationService.Serialize(ICollection objects) {
if (objects == null) {
objects = new object[0];
}
ComponentSerializationService css = GetService(typeof(ComponentSerializationService)) as ComponentSerializationService;
if (css == null) {
ThrowMissingService(typeof(ComponentSerializationService));
}
SerializationStore store = css.CreateStore();
using (store) {
foreach (object o in objects) {
css.Serialize(store, o);
}
}
return store;
}
///
/// Creates a new name that is unique to all the components
/// in the given container. The name will be used to create
/// an object of the given data type, so the service may
/// derive a name from the data type's name.
///
string INameCreationService.CreateName(IContainer container, Type dataType) {
if (dataType == null) {
throw new ArgumentNullException("dataType");
}
string finalName;
string baseName = dataType.Name;
// Create a base member name that is a camel casing of the
// data type name.
//
StringBuilder b = new StringBuilder(baseName.Length);
for (int i = 0; i < baseName.Length; i++) {
if (Char.IsUpper(baseName[i]) && (i == 0 || i == baseName.Length - 1 || Char.IsUpper(baseName[i + 1]))) {
b.Append(Char.ToLower(baseName[i], CultureInfo.CurrentCulture));
}
else {
b.Append(baseName.Substring(i));
break;
}
}
b.Replace('`', '_');
baseName = b.ToString();
// Now hash up all of the member variable names using a case insensitve hash.
//
CodeTypeDeclaration type = _documentType;
Hashtable memberHash = new Hashtable(StringComparer.CurrentCultureIgnoreCase);
if (type != null) {
foreach (CodeTypeMember member in type.Members) {
memberHash[member.Name] = member;
}
}
// VSWhidbey 95065: Only attempt to build a unique name here if we have a valid container
// against which to check the result. Otherwise, the name build here might be appended to
// with yet another iterator elsewhere. FWIW, this check is identical to the check used in
// BaseDesignerLoader's implementation of INameCreationService.CreateName().
if (container != null) {
int idx = 0;
bool conflict;
// Now loop until we find a name that hasn't been used.
//
do {
idx++;
conflict = false;
finalName = string.Format(CultureInfo.CurrentCulture, "{0}{1}", baseName, idx.ToString(CultureInfo.InvariantCulture));
if (container != null && container.Components[finalName] != null) {
conflict = true;
}
if (!conflict && memberHash[finalName] != null) {
conflict = true;
}
} while (conflict);
}
else {
finalName = baseName;
}
// And validate the new name against the code dom's code
// generator to ensure it's not a keyword.
//
if (_codeGenerator == null) {
CodeDomProvider provider = CodeDomProvider;
if (provider != null) {
#pragma warning disable 618
_codeGenerator = provider.CreateGenerator();
#pragma warning restore 618
}
}
if (_codeGenerator != null) {
finalName = _codeGenerator.CreateValidIdentifier(finalName);
}
return finalName;
}
///
/// Determines if the given name is valid. A name
/// creation service may have rules defining a valid
/// name, and this method allows the sevice to enforce
/// those rules.
///
bool INameCreationService.IsValidName(string name) {
if (name == null) {
throw new ArgumentNullException("name");
}
if (name.Length == 0) {
return false;
}
if (_codeGenerator == null) {
CodeDomProvider provider = CodeDomProvider;
if (provider != null) {
#pragma warning disable 618
_codeGenerator = provider.CreateGenerator();
#pragma warning restore 618
}
}
if (_codeGenerator != null) {
if (!_codeGenerator.IsValidIdentifier(name)) {
return false;
}
if (!_codeGenerator.IsValidIdentifier(name + "Handler")) {
return false;
}
}
// We don't validate against the type members if we're loading,
// because during load these members are being added by the
// parser, so of course there will be duplicates.
if (!Loading) {
CodeTypeDeclaration type = _documentType;
if (type != null) {
foreach (CodeTypeMember member in type.Members) {
if (string.Equals(member.Name, name, StringComparison.OrdinalIgnoreCase)) {
return false;
}
}
}
// If the designer has been modified there is a chance that
// the document type does not have all the necessary
// members in it yet. So, we need to check the container
// as well.
if (Modified && LoaderHost.Container.Components[name] != null) {
return false;
}
}
return true;
}
///
/// Determines if the given name is valid. A name
/// creation service may have rules defining a valid
/// name, and this method allows the sevice to enforce
/// those rules. It is similar to IsValidName, except
/// that this method will throw an exception if the
/// name is invalid. This allows implementors to provide
/// rich information in the exception message.
///
void INameCreationService.ValidateName(string name) {
if (name == null) {
throw new ArgumentNullException("name");
}
if (name.Length == 0) {
Exception ex = new ArgumentException(SR.GetString(SR.CodeDomDesignerLoaderInvalidBlankIdentifier));
ex.HelpLink = SR.CodeDomDesignerLoaderInvalidIdentifier;
throw ex;
}
if (_codeGenerator == null) {
CodeDomProvider provider = CodeDomProvider;
if (provider != null) {
#pragma warning disable 618
_codeGenerator = provider.CreateGenerator();
#pragma warning restore 618
}
}
if (_codeGenerator != null) {
_codeGenerator.ValidateIdentifier(name);
try {
// We add something arbitrary and try to validate that. This is because we want to make sure
// adding something is going to be fine, if not our event handler name generation will break in
// case this identifier is something like a VB escaped keyword. For example, [public] is fine
// but [public]_Click is not.
_codeGenerator.ValidateIdentifier(name + "_");
}
catch {
// we have to change the exception back to the original name
Exception ex = new ArgumentException(SR.GetString(SR.CodeDomDesignerLoaderInvalidIdentifier, name));
ex.HelpLink = SR.CodeDomDesignerLoaderInvalidIdentifier;
throw ex;
}
}
// We don't validate against the type members if we're loading,
// because during load these members are being added by the
// parser, so of course there will be duplicates.
if (!Loading) {
bool dup = false;
CodeTypeDeclaration type = _documentType;
if (type != null) {
foreach (CodeTypeMember member in type.Members) {
if (string.Equals(member.Name, name, StringComparison.OrdinalIgnoreCase)) {
dup = true;
break;
}
}
}
// If the designer has been modified there is a chance that
// the document type does not have all the necessary
// members in it yet. So, we need to check the container
// as well.
if (!dup && Modified && LoaderHost.Container.Components[name] != null) {
dup = true;
}
if (dup) {
Exception ex = new ArgumentException(SR.GetString(SR.CodeDomDesignerLoaderDupComponentName, name));
ex.HelpLink = SR.CodeDomDesignerLoaderDupComponentName;
throw ex;
}
}
}
///
/// This extender provider provides the "Modifiers" property.
///
[ProvideProperty("Modifiers", typeof(IComponent))]
[ProvideProperty("GenerateMember", typeof(IComponent))]
private class ModifiersExtenderProvider : IExtenderProvider {
private IDesignerHost _host;
///
/// Determines if ths extender provider can extend the given object. We extend
/// all objects, so we always return true.
///
public bool CanExtend(object o) {
IComponent c = o as IComponent;
if (c == null) {
return false;
}
// We don't add modifiers to the base component.
//
IComponent baseComponent = GetBaseComponent(c);
if (o == baseComponent) {
return false;
}
// Now see if this object is inherited. If so, then we don't want to
// extend.
//
if (!TypeDescriptor.GetAttributes(o)[typeof(InheritanceAttribute)].Equals(InheritanceAttribute.NotInherited)) {
return false;
}
return true;
}
private IComponent GetBaseComponent(IComponent c) {
IComponent baseComponent = null;
if (c == null) {
return null;
}
if (_host == null) {
ISite site = c.Site;
if (site != null) {
_host = (IDesignerHost)site.GetService(typeof(IDesignerHost));
}
}
if (_host != null) {
baseComponent = _host.RootComponent;
}
return baseComponent;
}
///
/// This is an extender property that we offer to all components
/// on the form. It implements the "GenerateMember" property, which
/// is a boolean that, if true, causes a field member to be generated for
/// the object.
///
[DesignOnly(true), DefaultValue(true), SRDescription(SR.CodeDomDesignerLoaderPropGenerateMember), Category("Design")]
[HelpKeyword("Designer_GenerateMember")]
public bool GetGenerateMember(IComponent comp) {
ISite site = comp.Site;
if (site != null) {
IDictionaryService dictionary = (IDictionaryService)site.GetService(typeof(IDictionaryService));
if (dictionary != null) {
object value = dictionary.GetValue("GenerateMember");
if (value is bool) {
return (bool)value;
}
}
}
return true;
}
///
/// This is an extender property that we offer to all components
/// on the form. It implements the "Modifiers" property, which
/// is an enum represneing the "public/protected/private" scope
/// of a component.
///
[DesignOnly(true), TypeConverter(typeof(ModifierConverter)), DefaultValue(MemberAttributes.Private), SRDescription(SR.CodeDomDesignerLoaderPropModifiers), Category("Design")]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
[HelpKeyword("Designer_Modifiers")]
public MemberAttributes GetModifiers(IComponent comp) {
ISite site = comp.Site;
if (site != null) {
IDictionaryService dictionary = (IDictionaryService)site.GetService(typeof(IDictionaryService));
if (dictionary != null) {
object value = dictionary.GetValue("Modifiers");
if (value is MemberAttributes) {
return (MemberAttributes)value;
}
}
}
// Check to see if someone offered up a "DefaultModifiers" property so we can
// decide a default.
//
PropertyDescriptorCollection props = TypeDescriptor.GetProperties(comp);
PropertyDescriptor prop = props["DefaultModifiers"];
if (prop != null && prop.PropertyType == typeof(MemberAttributes)) {
return (MemberAttributes)prop.GetValue(comp);
}
return MemberAttributes.Private;
}
///
/// This is an extender property that we offer to all components
/// on the form. It implements the "GenerateMember" property, which
/// is a boolean that, if true, causes a field member to be generated for
/// the object.
///
public void SetGenerateMember(IComponent comp, bool generate) {
ISite site = comp.Site;
if (site != null) {
IDictionaryService dictionary = (IDictionaryService)site.GetService(typeof(IDictionaryService));
bool oldValue = GetGenerateMember(comp);
if (dictionary != null) {
dictionary.SetValue("GenerateMember", generate);
}
// If the old value was true and the new value is false, we've got
// to remove the existing member declaration for this
// component
if (oldValue && !generate) {
CodeTypeDeclaration typeDecl = site.GetService(typeof(CodeTypeDeclaration)) as CodeTypeDeclaration;
string compName = site.Name;
if (typeDecl != null && compName != null) {
foreach (CodeTypeMember member in typeDecl.Members) {
CodeMemberField field = member as CodeMemberField;
if (field != null && field.Name.Equals(compName)) {
typeDecl.Members.Remove(field);
break;
}
}
}
}
}
}
///
/// This is an extender property that we offer to all components
/// on the form. It implements the "Modifiers" property, which
/// is an enum represneing the "public/protected/private" scope
/// of a component.
///
public void SetModifiers(IComponent comp, MemberAttributes modifiers) {
ISite site = comp.Site;
if (site != null) {
IDictionaryService dictionary = (IDictionaryService)site.GetService(typeof(IDictionaryService));
if (dictionary != null) {
dictionary.SetValue("Modifiers", modifiers);
}
}
}
}
///
/// This extender provider offers up read-only versions of
/// "Modifiers" for inherited components.
///
[ProvideProperty("Modifiers", typeof(IComponent))]
private class ModifiersInheritedExtenderProvider : IExtenderProvider {
private IDesignerHost _host;
///
/// Determines if ths extender provider can extend the given object. We extend
/// all objects, so we always return true.
///
public bool CanExtend(object o) {
IComponent c = o as IComponent;
if (c == null) {
return false;
}
// We don't add modifiers to the base component.
//
IComponent baseComponent = GetBaseComponent(c);
if (o == baseComponent) {
return false;
}
// Now see if this object is inherited. If so, then we are interested in it.
//
AttributeCollection attributes = TypeDescriptor.GetAttributes(o);
if (!attributes[typeof(InheritanceAttribute)].Equals(InheritanceAttribute.NotInherited)) {
return true;
}
return false;
}
private IComponent GetBaseComponent(IComponent c) {
IComponent baseComponent = null;
if (c == null) {
return null;
}
if (_host == null) {
ISite site = c.Site;
if (site != null) {
_host = (IDesignerHost)site.GetService(typeof(IDesignerHost));
}
}
if (_host != null) {
baseComponent = _host.RootComponent;
}
return baseComponent;
}
///
/// This is an extender property that we offer to all components
/// on the form. It implements the "Modifiers" property, which
/// is an enum represneing the "public/protected/private" scope
/// of a component.
///
[DesignOnly(true), TypeConverter(typeof(ModifierConverter)), DefaultValue(MemberAttributes.Private), SRDescription(SR.CodeDomDesignerLoaderPropModifiers), Category("Design")]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public MemberAttributes GetModifiers(IComponent comp) {
IComponent baseComponent = GetBaseComponent(comp);
Debug.Assert(baseComponent != null, "Root component was null");
Type baseType = baseComponent.GetType();
ISite site = comp.Site;
if (site != null) {
string name = site.Name;
if (name != null) {
FieldInfo field = TypeDescriptor.GetReflectionType(baseType).GetField(name, BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance | BindingFlags.Static);
if (field != null) {
if (field.IsPrivate) return MemberAttributes.Private;
if (field.IsPublic) return MemberAttributes.Public;
if (field.IsFamily) return MemberAttributes.Family;
if (field.IsAssembly) return MemberAttributes.Assembly;
if (field.IsFamilyOrAssembly) return MemberAttributes.FamilyOrAssembly;
if (field.IsFamilyAndAssembly) return MemberAttributes.FamilyAndAssembly;
}
else {
// Visual Basic uses a property called Foo and generates a field called _Foo. We need to check the
// visibility of this accessor to fix the modifiers up.
//
PropertyInfo prop = TypeDescriptor.GetReflectionType(baseType).GetProperty(name, BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance | BindingFlags.Static);
if (prop != null) {
MethodInfo[] accessors = prop.GetAccessors(true);
if (accessors != null && accessors.Length > 0) {
MethodInfo mi = accessors[0];
if (mi != null) {
if (mi.IsPrivate) return MemberAttributes.Private;
if (mi.IsPublic) return MemberAttributes.Public;
if (mi.IsFamily) return MemberAttributes.Family;
if (mi.IsAssembly) return MemberAttributes.Assembly;
if (mi.IsFamilyOrAssembly) return MemberAttributes.FamilyOrAssembly;
if (mi.IsFamilyAndAssembly) return MemberAttributes.FamilyAndAssembly;
}
}
}
}
}
}
return MemberAttributes.Private;
}
}
private class ModifierConverter : TypeConverter {
///
/// Gets a value indicating whether this converter can
/// convert an object in the given source type to the native type of the converter
/// using the context.
///
public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) {
return GetConverter(context).CanConvertFrom(context, sourceType);
}
///
/// Gets a value indicating whether this converter can
/// convert an object to the given destination type using the context.
///
public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) {
return GetConverter(context).CanConvertTo(context, destinationType);
}
///
/// Converts the given object to the converter's native type.
///
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) {
return GetConverter(context).ConvertFrom(context, culture, value);
}
///
/// Converts the given value object to
/// the specified destination type using the specified context and arguments.
///
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) {
return GetConverter(context).ConvertTo(context, culture, value, destinationType);
}
///
/// Re-creates an
///
public override object CreateInstance(ITypeDescriptorContext context, IDictionary propertyValues) {
return GetConverter(context).CreateInstance(context, propertyValues);
}
///
/// Returns the type converter for the member attributes enum. We search the context
/// for a code dom provider that can provide us more information.
///
private TypeConverter GetConverter(ITypeDescriptorContext context) {
TypeConverter modifierConverter = null;
if (context != null) {
CodeDomProvider provider = (CodeDomProvider)context.GetService(typeof(CodeDomProvider));
if (provider != null) {
modifierConverter = provider.GetConverter(typeof(MemberAttributes));
}
}
if (modifierConverter == null) {
modifierConverter = TypeDescriptor.GetConverter(typeof(MemberAttributes));
}
return modifierConverter;
}
///
/// Gets a value indicating whether changing a value on this object requires a
/// call to
///
public override bool GetCreateInstanceSupported(ITypeDescriptorContext context) {
return GetConverter(context).GetCreateInstanceSupported(context);
}
///
/// Gets a collection of properties for
/// the type of array specified by the value parameter using the specified context and
/// attributes.
///
public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object value, Attribute[] attributes) {
return GetConverter(context).GetProperties(context, value, attributes);
}
///
/// Gets a value indicating
/// whether this object supports properties using the
/// specified context.
///
public override bool GetPropertiesSupported(ITypeDescriptorContext context) {
return GetConverter(context).GetPropertiesSupported(context);
}
///
/// Gets a collection of standard values for the data type this type converter is
/// designed for.
///
public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context) {
// We restrict the set of standard values to those within the access mask.
//
StandardValuesCollection values = GetConverter(context).GetStandardValues(context);
if (values != null && values.Count > 0) {
bool needMassage = false;
foreach (MemberAttributes value in values) {
if ((value & MemberAttributes.AccessMask) == 0) {
needMassage = true;
break;
}
}
if (needMassage) {
ArrayList list = new ArrayList(values.Count);
foreach (MemberAttributes value in values) {
if ((value & MemberAttributes.AccessMask) != 0 && value != MemberAttributes.AccessMask) {
list.Add(value);
}
}
values = new StandardValuesCollection(list);
}
}
return values;
}
///
/// Gets a value indicating whether the collection of standard values returned from
///
///
public override bool GetStandardValuesExclusive(ITypeDescriptorContext context) {
return GetConverter(context).GetStandardValuesExclusive(context);
}
///
/// Gets a value indicating
/// whether this object
/// supports a standard set of values that can be picked
/// from a list using the specified context.
///
public override bool GetStandardValuesSupported(ITypeDescriptorContext context) {
return GetConverter(context).GetStandardValuesSupported(context);
}
///
/// Gets
/// a value indicating whether the given value object is valid for this type.
///
public override bool IsValid(ITypeDescriptorContext context, object value) {
return GetConverter(context).IsValid(context, value);
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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- Comparer.cs
- MatchAttribute.cs
- CounterCreationDataCollection.cs
- HostedHttpContext.cs
- PersistChildrenAttribute.cs
- CodeStatementCollection.cs
- EllipticalNodeOperations.cs
- PolicyValidationException.cs
- ClientEventManager.cs
- ParameterReplacerVisitor.cs
- InfoCardRSAPKCS1SignatureFormatter.cs
- XmlDocumentSurrogate.cs
- ServiceBusyException.cs
- ExpressionReplacer.cs
- MarkupObject.cs
- ProviderException.cs
- DesignerSerializationManager.cs
- SecureConversationServiceElement.cs
- TableLayout.cs
- RangeContentEnumerator.cs
- MethodExpression.cs
- ExceptionTrace.cs
- ValidateNames.cs
- SoapBinding.cs
- X509ThumbprintKeyIdentifierClause.cs
- ConfigPathUtility.cs
- BindingExpressionBase.cs
- ListBindingHelper.cs
- DecoratedNameAttribute.cs
- mansign.cs
- ListView.cs
- SynchronizedChannelCollection.cs
- rsa.cs
- SystemIcmpV6Statistics.cs
- IndexedGlyphRun.cs
- CacheSection.cs
- ToolConsole.cs
- DbProviderFactoriesConfigurationHandler.cs
- cookiecollection.cs
- HttpListenerContext.cs
- DataTableTypeConverter.cs
- CreateUserErrorEventArgs.cs
- HashStream.cs
- SystemIPInterfaceStatistics.cs
- ObjectTypeMapping.cs
- EntityWrapperFactory.cs
- ADRole.cs
- ObservableDictionary.cs
- OpacityConverter.cs
- XsltArgumentList.cs
- ThicknessAnimation.cs
- RequiredFieldValidator.cs
- FrameDimension.cs
- GraphicsContext.cs
- _ShellExpression.cs
- WebPartHeaderCloseVerb.cs
- ValidationHelper.cs
- ToolStripItemRenderEventArgs.cs
- SecurityTokenValidationException.cs
- ScriptDescriptor.cs
- ClientFormsIdentity.cs
- KnownTypesHelper.cs
- TimeZoneInfo.cs
- LinearKeyFrames.cs
- NonSerializedAttribute.cs
- ChildrenQuery.cs
- Point3DCollection.cs
- SqlNotificationRequest.cs
- MsmqIntegrationInputChannel.cs
- PictureBoxDesigner.cs
- TableLayoutRowStyleCollection.cs
- TableRowCollection.cs
- DataGridViewRowsRemovedEventArgs.cs
- DocumentReference.cs
- InvalidDataException.cs
- HttpApplication.cs
- NullToBooleanConverter.cs
- ComProxy.cs
- InternalCache.cs
- RSAOAEPKeyExchangeFormatter.cs
- RtfToken.cs
- CompositeFontInfo.cs
- StylusPointPropertyUnit.cs
- CompilationLock.cs
- SystemTcpConnection.cs
- ProvidePropertyAttribute.cs
- DataTableClearEvent.cs
- XamlTypeMapper.cs
- UrlMappingCollection.cs
- Scripts.cs
- EnumerableCollectionView.cs
- WebSysDisplayNameAttribute.cs
- ByteConverter.cs
- DataServiceExpressionVisitor.cs
- DictionaryManager.cs
- securitymgrsite.cs
- PolyQuadraticBezierSegment.cs
- DoubleAnimationBase.cs
- AnnotationObservableCollection.cs
- FullTextBreakpoint.cs