Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / ndp / fx / src / xsp / System / Web / Extensions / ui / webcontrols / LinqDataSource.cs / 2 / LinqDataSource.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Web.UI.WebControls {
using System.Collections;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Diagnostics.CodeAnalysis;
using System.Drawing;
using System.Drawing.Design;
using System.Globalization;
using System.Security.Permissions;
using System.Web.DynamicData;
using System.Web.Resources;
using System.Web.UI;
// Represents a data source that applies LINQ expressions against a business object in order to perform the Select
// operation. When the Delete, Insert and Update operations are enabled the business object, specified in
// ContextTypeName, must be a LINQ TO SQL DataContext. The LINQ expressions are applied in the order of Where,
// OrderBy, GroupBy, OrderGroupsBy, Select.
[
AspNetHostingPermission(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal),
AspNetHostingPermission(SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal),
DefaultEvent("Selecting"),
DefaultProperty("ContextTypeName"),
Designer("System.Web.UI.Design.WebControls.LinqDataSourceDesigner, " + AssemblyRef.SystemWebExtensionsDesign),
ParseChildren(true),
PersistChildren(false),
ResourceDescription("LinqDataSource_Description"),
ResourceDisplayName("LinqDataSource_DisplayName"),
ToolboxBitmap(typeof(LinqDataSource), "LinqDataSource.ico"),
ToolboxItemFilterAttribute(AssemblyRef.SystemWebExtensions, ToolboxItemFilterType.Require),
]
public class LinqDataSource : DataSourceControl, IDynamicDataSource {
private const string DefaultViewName = "DefaultView";
private LinqDataSourceView _view;
private ICollection _viewNames;
private readonly new IPage _page;
public LinqDataSource() {
}
// internal constructor that takes mocks for unit tests.
internal LinqDataSource(IDynamicQueryable dynamicQueryable, ILinqToSql linqToSql) {
View = new LinqDataSourceView(this, DefaultViewName, Context, dynamicQueryable, linqToSql);
}
// internal constructor that takes page mock for unit tests.
internal LinqDataSource(IPage page) {
_page = page;
}
[
DefaultValue(false),
Category("Behavior"),
ResourceDescription("LinqDataSource_AutoGenerateOrderByClause"),
]
public bool AutoGenerateOrderByClause {
get {
return View.AutoGenerateOrderByClause;
}
set {
View.AutoGenerateOrderByClause = value;
}
}
[
DefaultValue(false),
Category("Behavior"),
ResourceDescription("LinqDataSource_AutoGenerateWhereClause"),
]
public bool AutoGenerateWhereClause {
get {
return View.AutoGenerateWhereClause;
}
set {
View.AutoGenerateWhereClause = value;
}
}
[
DefaultValue(true),
Category("Behavior"),
ResourceDescription("LinqDataSource_AutoPage"),
]
public bool AutoPage {
get {
return View.AutoPage;
}
set {
View.AutoPage = value;
}
}
[
DefaultValue(true),
Category("Behavior"),
ResourceDescription("LinqDataSource_AutoSort"),
]
public bool AutoSort {
get {
return View.AutoSort;
}
set {
View.AutoSort = value;
}
}
[
DefaultValue(""),
Category("Data"),
ResourceDescription("LinqDataSource_ContextTypeName"),
]
public string ContextTypeName {
get {
return View.ContextTypeName;
}
set {
View.ContextTypeName = value;
}
}
[
DefaultValue(null),
MergableProperty(false),
PersistenceMode(PersistenceMode.InnerProperty),
Category("Data"),
ResourceDescription("LinqDataSource_DeleteParameters"),
Browsable(false)
]
public ParameterCollection DeleteParameters {
get {
return View.DeleteParameters;
}
}
[
DefaultValue(false),
Category("Behavior"),
ResourceDescription("LinqDataSource_EnableDelete"),
]
public bool EnableDelete {
get {
return View.EnableDelete;
}
set {
View.EnableDelete = value;
}
}
[
DefaultValue(false),
Category("Behavior"),
ResourceDescription("LinqDataSource_EnableInsert"),
]
public bool EnableInsert {
get {
return View.EnableInsert;
}
set {
View.EnableInsert = value;
}
}
[
DefaultValue(true),
Category("Behavior"),
ResourceDescription("LinqDataSource_EnableObjectTracking"),
]
public bool EnableObjectTracking {
get {
return View.EnableObjectTracking;
}
set {
View.EnableObjectTracking = value;
}
}
[
DefaultValue(false),
Category("Behavior"),
ResourceDescription("LinqDataSource_EnableUpdate"),
]
public bool EnableUpdate {
get {
return View.EnableUpdate;
}
set {
View.EnableUpdate = value;
}
}
[
DefaultValue(""),
Category("Data"),
ResourceDescription("LinqDataSource_GroupBy"),
]
public string GroupBy {
get {
return View.GroupBy;
}
set {
View.GroupBy = value;
}
}
[
DefaultValue(null),
MergableProperty(false),
PersistenceMode(PersistenceMode.InnerProperty),
Category("Data"),
ResourceDescription("LinqDataSource_GroupByParameters"),
Browsable(false)
]
public ParameterCollection GroupByParameters {
get {
return View.GroupByParameters;
}
}
[
DefaultValue(null),
MergableProperty(false),
PersistenceMode(PersistenceMode.InnerProperty),
Category("Data"),
ResourceDescription("LinqDataSource_InsertParameters"),
Browsable(false)
]
public ParameterCollection InsertParameters {
get {
return View.InsertParameters;
}
}
internal IPage IPage {
get {
if (_page != null) {
return _page;
}
else {
Page page = Page;
if (page == null) {
throw new InvalidOperationException(AtlasWeb.Common_PageCannotBeNull);
}
return new PageWrapper(page);
}
}
}
[
DefaultValue(""),
Category("Data"),
ResourceDescription("LinqDataSource_OrderBy"),
]
public string OrderBy {
get {
return View.OrderBy;
}
set {
View.OrderBy = value;
}
}
[
DefaultValue(null),
MergableProperty(false),
PersistenceMode(PersistenceMode.InnerProperty),
Category("Data"),
ResourceDescription("LinqDataSource_OrderByParameters"),
Browsable(false)
]
public ParameterCollection OrderByParameters {
get {
return View.OrderByParameters;
}
}
[
DefaultValue(""),
Category("Data"),
ResourceDescription("LinqDataSource_OrderGroupsBy"),
]
public string OrderGroupsBy {
get {
return View.OrderGroupsBy;
}
set {
View.OrderGroupsBy = value;
}
}
[
DefaultValue(null),
MergableProperty(false),
PersistenceMode(PersistenceMode.InnerProperty),
Category("Data"),
ResourceDescription("LinqDataSource_OrderGroupsByParameters"),
Browsable(false)
]
public ParameterCollection OrderGroupsByParameters {
get {
return View.OrderGroupsByParameters;
}
}
[
DefaultValue(""),
Category("Data"),
ResourceDescription("LinqDataSource_Select"),
]
public string Select {
get {
return View.SelectNew;
}
set {
View.SelectNew = value;
}
}
[
DefaultValue(null),
MergableProperty(false),
PersistenceMode(PersistenceMode.InnerProperty),
Category("Data"),
ResourceDescription("LinqDataSource_SelectParameters"),
Browsable(false)
]
public ParameterCollection SelectParameters {
get {
return View.SelectNewParameters;
}
}
[
DefaultValue(true),
Category("Behavior"),
ResourceDescription("LinqDataSource_StoreOriginalValuesInViewState"),
]
public bool StoreOriginalValuesInViewState {
get {
return View.StoreOriginalValuesInViewState;
}
set {
View.StoreOriginalValuesInViewState = value;
}
}
[
DefaultValue(""),
Category("Data"),
ResourceDescription("LinqDataSource_TableName"),
]
public string TableName {
get {
return View.TableName;
}
set {
View.TableName = value;
}
}
[
DefaultValue(null),
MergableProperty(false),
PersistenceMode(PersistenceMode.InnerProperty),
Category("Data"),
ResourceDescription("LinqDataSource_UpdateParameters"),
Browsable(false)
]
public ParameterCollection UpdateParameters {
get {
return View.UpdateParameters;
}
}
internal LinqDataSourceView View {
get {
if (_view == null) {
View = CreateView();
}
return _view;
}
private set {
_view = value;
if ((_view != null) && IsTrackingViewState) {
((IStateManager)_view).TrackViewState();
}
}
}
[
DefaultValue(""),
Category("Data"),
ResourceDescription("LinqDataSource_Where"),
]
public string Where {
get {
return View.Where;
}
set {
View.Where = value;
}
}
[
DefaultValue(null),
MergableProperty(false),
PersistenceMode(PersistenceMode.InnerProperty),
Category("Data"),
ResourceDescription("LinqDataSource_WhereParameters"),
Browsable(false)
]
public ParameterCollection WhereParameters {
get {
return View.WhereParameters;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_ContextCreated"),
]
public event EventHandler ContextCreated {
add {
View.ContextCreated += value;
}
remove {
View.ContextCreated -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_ContextCreating"),
]
public event EventHandler ContextCreating {
add {
View.ContextCreating += value;
}
remove {
View.ContextCreating -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_ContextDisposing"),
]
public event EventHandler ContextDisposing {
add {
View.ContextDisposing += value;
}
remove {
View.ContextDisposing -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_Deleted"),
]
public event EventHandler Deleted {
add {
View.Deleted += value;
}
remove {
View.Deleted -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_Deleting"),
]
public event EventHandler Deleting {
add {
View.Deleting += value;
}
remove {
View.Deleting -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_Inserted"),
]
public event EventHandler Inserted {
add {
View.Inserted += value;
}
remove {
View.Inserted -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_Inserting"),
]
public event EventHandler Inserting {
add {
View.Inserting += value;
}
remove {
View.Inserting -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_Selected"),
]
public event EventHandler Selected {
add {
View.Selected += value;
}
remove {
View.Selected -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_Selecting"),
]
public event EventHandler Selecting {
add {
View.Selecting += value;
}
remove {
View.Selecting -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_Updated"),
]
public event EventHandler Updated {
add {
View.Updated += value;
}
remove {
View.Updated -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_Updating"),
]
public event EventHandler Updating {
add {
View.Updating += value;
}
remove {
View.Updating -= value;
}
}
protected virtual LinqDataSourceView CreateView() {
return new LinqDataSourceView(this, DefaultViewName, Context);
}
public int Delete(IDictionary keys, IDictionary oldValues) {
return View.Delete(keys, oldValues);
}
protected override DataSourceView GetView(string viewName) {
if (viewName == null) {
throw new ArgumentNullException("viewName");
}
// viewName comes from the DataMember property on the databound control and is an empty string
// by default. An empty string should be treated as if it were the default view name.
if ((viewName.Length != 0) &&
!String.Equals(viewName, DefaultViewName, StringComparison.OrdinalIgnoreCase)) {
throw new ArgumentException(String.Format(CultureInfo.InvariantCulture,
AtlasWeb.LinqDataSource_InvalidViewName, ID, DefaultViewName), "viewName");
}
return View;
}
protected override ICollection GetViewNames() {
if (_viewNames == null) {
_viewNames = new ReadOnlyCollection(new string[] { DefaultViewName });
}
return _viewNames;
}
public int Insert(IDictionary values) {
return View.Insert(values);
}
private void LoadCompleteEventHandler(object sender, EventArgs e) {
WhereParameters.UpdateValues(Context, this);
OrderByParameters.UpdateValues(Context, this);
GroupByParameters.UpdateValues(Context, this);
OrderGroupsByParameters.UpdateValues(Context, this);
SelectParameters.UpdateValues(Context, this);
}
protected override void LoadViewState(object savedState) {
if (savedState == null) {
base.LoadViewState(null);
}
else {
Pair myState = (Pair)savedState;
base.LoadViewState(myState.First);
if (myState.Second != null) {
((IStateManager)View).LoadViewState(myState.Second);
}
}
}
[SuppressMessage("Microsoft.Security", "CA2109:ReviewVisibleEventHandlers", MessageId = "0#")]
protected internal override void OnInit(EventArgs e) {
base.OnInit(e);
IPage.LoadComplete += new EventHandler(LoadCompleteEventHandler);
if (StoreOriginalValuesInViewState && (EnableUpdate || EnableDelete)) {
IPage.RegisterRequiresViewStateEncryption();
}
}
[SuppressMessage("Microsoft.Security", "CA2109:ReviewVisibleEventHandlers", MessageId = "0#")]
protected internal override void OnUnload(EventArgs e) {
base.OnUnload(e);
// keeping the select contexts alive until Unload so that users can use deferred query evaluation.
if (_view != null) {
_view.ReleaseSelectContexts();
}
}
protected override object SaveViewState() {
Pair myState = new Pair();
myState.First = base.SaveViewState();
if (_view != null) {
myState.Second = ((IStateManager)_view).SaveViewState();
}
if ((myState.First == null) &&
(myState.Second == null)) {
return null;
}
return myState;
}
protected override void TrackViewState() {
base.TrackViewState();
if (_view != null) {
((IStateManager)_view).TrackViewState();
}
}
public int Update(IDictionary keys, IDictionary values, IDictionary oldValues) {
return View.Update(keys, values, oldValues);
}
#region IDynamicDataSource members
[SuppressMessage("Microsoft.Design", "CA1033:InterfaceMethodsShouldBeCallableByChildTypes",
Justification = "Property used for IDynamicDataSource abstraction that wraps the ContextTypeName.")]
Type IDynamicDataSource.ContextType {
get {
if (String.IsNullOrEmpty(ContextTypeName)) {
return null;
}
return _view.ContextType;
}
set {
_view.ContextTypeName = value.AssemblyQualifiedName;
}
}
[SuppressMessage("Microsoft.Design", "CA1033:InterfaceMethodsShouldBeCallableByChildTypes",
Justification = "Property used for IDynamicDataSource abstraction that wraps the TableName.")]
string IDynamicDataSource.EntitySetName {
get {
return TableName;
}
set {
TableName = value;
}
}
[SuppressMessage("Microsoft.Design", "CA1033:InterfaceMethodsShouldBeCallableByChildTypes",
Justification = "IDynamicDataSource abstraction for handling exceptions available to user through other events.")]
event EventHandler IDynamicDataSource.Exception {
add {
View.Exception += value;
}
remove {
View.Exception -= value;
}
}
#endregion
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Web.UI.WebControls {
using System.Collections;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Diagnostics.CodeAnalysis;
using System.Drawing;
using System.Drawing.Design;
using System.Globalization;
using System.Security.Permissions;
using System.Web.DynamicData;
using System.Web.Resources;
using System.Web.UI;
// Represents a data source that applies LINQ expressions against a business object in order to perform the Select
// operation. When the Delete, Insert and Update operations are enabled the business object, specified in
// ContextTypeName, must be a LINQ TO SQL DataContext. The LINQ expressions are applied in the order of Where,
// OrderBy, GroupBy, OrderGroupsBy, Select.
[
AspNetHostingPermission(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal),
AspNetHostingPermission(SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal),
DefaultEvent("Selecting"),
DefaultProperty("ContextTypeName"),
Designer("System.Web.UI.Design.WebControls.LinqDataSourceDesigner, " + AssemblyRef.SystemWebExtensionsDesign),
ParseChildren(true),
PersistChildren(false),
ResourceDescription("LinqDataSource_Description"),
ResourceDisplayName("LinqDataSource_DisplayName"),
ToolboxBitmap(typeof(LinqDataSource), "LinqDataSource.ico"),
ToolboxItemFilterAttribute(AssemblyRef.SystemWebExtensions, ToolboxItemFilterType.Require),
]
public class LinqDataSource : DataSourceControl, IDynamicDataSource {
private const string DefaultViewName = "DefaultView";
private LinqDataSourceView _view;
private ICollection _viewNames;
private readonly new IPage _page;
public LinqDataSource() {
}
// internal constructor that takes mocks for unit tests.
internal LinqDataSource(IDynamicQueryable dynamicQueryable, ILinqToSql linqToSql) {
View = new LinqDataSourceView(this, DefaultViewName, Context, dynamicQueryable, linqToSql);
}
// internal constructor that takes page mock for unit tests.
internal LinqDataSource(IPage page) {
_page = page;
}
[
DefaultValue(false),
Category("Behavior"),
ResourceDescription("LinqDataSource_AutoGenerateOrderByClause"),
]
public bool AutoGenerateOrderByClause {
get {
return View.AutoGenerateOrderByClause;
}
set {
View.AutoGenerateOrderByClause = value;
}
}
[
DefaultValue(false),
Category("Behavior"),
ResourceDescription("LinqDataSource_AutoGenerateWhereClause"),
]
public bool AutoGenerateWhereClause {
get {
return View.AutoGenerateWhereClause;
}
set {
View.AutoGenerateWhereClause = value;
}
}
[
DefaultValue(true),
Category("Behavior"),
ResourceDescription("LinqDataSource_AutoPage"),
]
public bool AutoPage {
get {
return View.AutoPage;
}
set {
View.AutoPage = value;
}
}
[
DefaultValue(true),
Category("Behavior"),
ResourceDescription("LinqDataSource_AutoSort"),
]
public bool AutoSort {
get {
return View.AutoSort;
}
set {
View.AutoSort = value;
}
}
[
DefaultValue(""),
Category("Data"),
ResourceDescription("LinqDataSource_ContextTypeName"),
]
public string ContextTypeName {
get {
return View.ContextTypeName;
}
set {
View.ContextTypeName = value;
}
}
[
DefaultValue(null),
MergableProperty(false),
PersistenceMode(PersistenceMode.InnerProperty),
Category("Data"),
ResourceDescription("LinqDataSource_DeleteParameters"),
Browsable(false)
]
public ParameterCollection DeleteParameters {
get {
return View.DeleteParameters;
}
}
[
DefaultValue(false),
Category("Behavior"),
ResourceDescription("LinqDataSource_EnableDelete"),
]
public bool EnableDelete {
get {
return View.EnableDelete;
}
set {
View.EnableDelete = value;
}
}
[
DefaultValue(false),
Category("Behavior"),
ResourceDescription("LinqDataSource_EnableInsert"),
]
public bool EnableInsert {
get {
return View.EnableInsert;
}
set {
View.EnableInsert = value;
}
}
[
DefaultValue(true),
Category("Behavior"),
ResourceDescription("LinqDataSource_EnableObjectTracking"),
]
public bool EnableObjectTracking {
get {
return View.EnableObjectTracking;
}
set {
View.EnableObjectTracking = value;
}
}
[
DefaultValue(false),
Category("Behavior"),
ResourceDescription("LinqDataSource_EnableUpdate"),
]
public bool EnableUpdate {
get {
return View.EnableUpdate;
}
set {
View.EnableUpdate = value;
}
}
[
DefaultValue(""),
Category("Data"),
ResourceDescription("LinqDataSource_GroupBy"),
]
public string GroupBy {
get {
return View.GroupBy;
}
set {
View.GroupBy = value;
}
}
[
DefaultValue(null),
MergableProperty(false),
PersistenceMode(PersistenceMode.InnerProperty),
Category("Data"),
ResourceDescription("LinqDataSource_GroupByParameters"),
Browsable(false)
]
public ParameterCollection GroupByParameters {
get {
return View.GroupByParameters;
}
}
[
DefaultValue(null),
MergableProperty(false),
PersistenceMode(PersistenceMode.InnerProperty),
Category("Data"),
ResourceDescription("LinqDataSource_InsertParameters"),
Browsable(false)
]
public ParameterCollection InsertParameters {
get {
return View.InsertParameters;
}
}
internal IPage IPage {
get {
if (_page != null) {
return _page;
}
else {
Page page = Page;
if (page == null) {
throw new InvalidOperationException(AtlasWeb.Common_PageCannotBeNull);
}
return new PageWrapper(page);
}
}
}
[
DefaultValue(""),
Category("Data"),
ResourceDescription("LinqDataSource_OrderBy"),
]
public string OrderBy {
get {
return View.OrderBy;
}
set {
View.OrderBy = value;
}
}
[
DefaultValue(null),
MergableProperty(false),
PersistenceMode(PersistenceMode.InnerProperty),
Category("Data"),
ResourceDescription("LinqDataSource_OrderByParameters"),
Browsable(false)
]
public ParameterCollection OrderByParameters {
get {
return View.OrderByParameters;
}
}
[
DefaultValue(""),
Category("Data"),
ResourceDescription("LinqDataSource_OrderGroupsBy"),
]
public string OrderGroupsBy {
get {
return View.OrderGroupsBy;
}
set {
View.OrderGroupsBy = value;
}
}
[
DefaultValue(null),
MergableProperty(false),
PersistenceMode(PersistenceMode.InnerProperty),
Category("Data"),
ResourceDescription("LinqDataSource_OrderGroupsByParameters"),
Browsable(false)
]
public ParameterCollection OrderGroupsByParameters {
get {
return View.OrderGroupsByParameters;
}
}
[
DefaultValue(""),
Category("Data"),
ResourceDescription("LinqDataSource_Select"),
]
public string Select {
get {
return View.SelectNew;
}
set {
View.SelectNew = value;
}
}
[
DefaultValue(null),
MergableProperty(false),
PersistenceMode(PersistenceMode.InnerProperty),
Category("Data"),
ResourceDescription("LinqDataSource_SelectParameters"),
Browsable(false)
]
public ParameterCollection SelectParameters {
get {
return View.SelectNewParameters;
}
}
[
DefaultValue(true),
Category("Behavior"),
ResourceDescription("LinqDataSource_StoreOriginalValuesInViewState"),
]
public bool StoreOriginalValuesInViewState {
get {
return View.StoreOriginalValuesInViewState;
}
set {
View.StoreOriginalValuesInViewState = value;
}
}
[
DefaultValue(""),
Category("Data"),
ResourceDescription("LinqDataSource_TableName"),
]
public string TableName {
get {
return View.TableName;
}
set {
View.TableName = value;
}
}
[
DefaultValue(null),
MergableProperty(false),
PersistenceMode(PersistenceMode.InnerProperty),
Category("Data"),
ResourceDescription("LinqDataSource_UpdateParameters"),
Browsable(false)
]
public ParameterCollection UpdateParameters {
get {
return View.UpdateParameters;
}
}
internal LinqDataSourceView View {
get {
if (_view == null) {
View = CreateView();
}
return _view;
}
private set {
_view = value;
if ((_view != null) && IsTrackingViewState) {
((IStateManager)_view).TrackViewState();
}
}
}
[
DefaultValue(""),
Category("Data"),
ResourceDescription("LinqDataSource_Where"),
]
public string Where {
get {
return View.Where;
}
set {
View.Where = value;
}
}
[
DefaultValue(null),
MergableProperty(false),
PersistenceMode(PersistenceMode.InnerProperty),
Category("Data"),
ResourceDescription("LinqDataSource_WhereParameters"),
Browsable(false)
]
public ParameterCollection WhereParameters {
get {
return View.WhereParameters;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_ContextCreated"),
]
public event EventHandler ContextCreated {
add {
View.ContextCreated += value;
}
remove {
View.ContextCreated -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_ContextCreating"),
]
public event EventHandler ContextCreating {
add {
View.ContextCreating += value;
}
remove {
View.ContextCreating -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_ContextDisposing"),
]
public event EventHandler ContextDisposing {
add {
View.ContextDisposing += value;
}
remove {
View.ContextDisposing -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_Deleted"),
]
public event EventHandler Deleted {
add {
View.Deleted += value;
}
remove {
View.Deleted -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_Deleting"),
]
public event EventHandler Deleting {
add {
View.Deleting += value;
}
remove {
View.Deleting -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_Inserted"),
]
public event EventHandler Inserted {
add {
View.Inserted += value;
}
remove {
View.Inserted -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_Inserting"),
]
public event EventHandler Inserting {
add {
View.Inserting += value;
}
remove {
View.Inserting -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_Selected"),
]
public event EventHandler Selected {
add {
View.Selected += value;
}
remove {
View.Selected -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_Selecting"),
]
public event EventHandler Selecting {
add {
View.Selecting += value;
}
remove {
View.Selecting -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_Updated"),
]
public event EventHandler Updated {
add {
View.Updated += value;
}
remove {
View.Updated -= value;
}
}
[
Category("Data"),
ResourceDescription("LinqDataSource_Updating"),
]
public event EventHandler Updating {
add {
View.Updating += value;
}
remove {
View.Updating -= value;
}
}
protected virtual LinqDataSourceView CreateView() {
return new LinqDataSourceView(this, DefaultViewName, Context);
}
public int Delete(IDictionary keys, IDictionary oldValues) {
return View.Delete(keys, oldValues);
}
protected override DataSourceView GetView(string viewName) {
if (viewName == null) {
throw new ArgumentNullException("viewName");
}
// viewName comes from the DataMember property on the databound control and is an empty string
// by default. An empty string should be treated as if it were the default view name.
if ((viewName.Length != 0) &&
!String.Equals(viewName, DefaultViewName, StringComparison.OrdinalIgnoreCase)) {
throw new ArgumentException(String.Format(CultureInfo.InvariantCulture,
AtlasWeb.LinqDataSource_InvalidViewName, ID, DefaultViewName), "viewName");
}
return View;
}
protected override ICollection GetViewNames() {
if (_viewNames == null) {
_viewNames = new ReadOnlyCollection(new string[] { DefaultViewName });
}
return _viewNames;
}
public int Insert(IDictionary values) {
return View.Insert(values);
}
private void LoadCompleteEventHandler(object sender, EventArgs e) {
WhereParameters.UpdateValues(Context, this);
OrderByParameters.UpdateValues(Context, this);
GroupByParameters.UpdateValues(Context, this);
OrderGroupsByParameters.UpdateValues(Context, this);
SelectParameters.UpdateValues(Context, this);
}
protected override void LoadViewState(object savedState) {
if (savedState == null) {
base.LoadViewState(null);
}
else {
Pair myState = (Pair)savedState;
base.LoadViewState(myState.First);
if (myState.Second != null) {
((IStateManager)View).LoadViewState(myState.Second);
}
}
}
[SuppressMessage("Microsoft.Security", "CA2109:ReviewVisibleEventHandlers", MessageId = "0#")]
protected internal override void OnInit(EventArgs e) {
base.OnInit(e);
IPage.LoadComplete += new EventHandler(LoadCompleteEventHandler);
if (StoreOriginalValuesInViewState && (EnableUpdate || EnableDelete)) {
IPage.RegisterRequiresViewStateEncryption();
}
}
[SuppressMessage("Microsoft.Security", "CA2109:ReviewVisibleEventHandlers", MessageId = "0#")]
protected internal override void OnUnload(EventArgs e) {
base.OnUnload(e);
// keeping the select contexts alive until Unload so that users can use deferred query evaluation.
if (_view != null) {
_view.ReleaseSelectContexts();
}
}
protected override object SaveViewState() {
Pair myState = new Pair();
myState.First = base.SaveViewState();
if (_view != null) {
myState.Second = ((IStateManager)_view).SaveViewState();
}
if ((myState.First == null) &&
(myState.Second == null)) {
return null;
}
return myState;
}
protected override void TrackViewState() {
base.TrackViewState();
if (_view != null) {
((IStateManager)_view).TrackViewState();
}
}
public int Update(IDictionary keys, IDictionary values, IDictionary oldValues) {
return View.Update(keys, values, oldValues);
}
#region IDynamicDataSource members
[SuppressMessage("Microsoft.Design", "CA1033:InterfaceMethodsShouldBeCallableByChildTypes",
Justification = "Property used for IDynamicDataSource abstraction that wraps the ContextTypeName.")]
Type IDynamicDataSource.ContextType {
get {
if (String.IsNullOrEmpty(ContextTypeName)) {
return null;
}
return _view.ContextType;
}
set {
_view.ContextTypeName = value.AssemblyQualifiedName;
}
}
[SuppressMessage("Microsoft.Design", "CA1033:InterfaceMethodsShouldBeCallableByChildTypes",
Justification = "Property used for IDynamicDataSource abstraction that wraps the TableName.")]
string IDynamicDataSource.EntitySetName {
get {
return TableName;
}
set {
TableName = value;
}
}
[SuppressMessage("Microsoft.Design", "CA1033:InterfaceMethodsShouldBeCallableByChildTypes",
Justification = "IDynamicDataSource abstraction for handling exceptions available to user through other events.")]
event EventHandler IDynamicDataSource.Exception {
add {
View.Exception += value;
}
remove {
View.Exception -= value;
}
}
#endregion
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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