Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / WebParts / PersonalizableTypeEntry.cs / 1 / PersonalizableTypeEntry.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls.WebParts { using System; using System.Collections; using System.Collections.Specialized; using System.Reflection; ////// Used to represent a type that has personalizable properties /// and cache information about it. /// internal sealed class PersonalizableTypeEntry { private Type _type; private IDictionary _propertyEntries; private PropertyInfo[] _propertyInfos; public PersonalizableTypeEntry(Type type) { _type = type; InitializePersonalizableProperties(); } public IDictionary PropertyEntries { get { return _propertyEntries; } } public ICollection PropertyInfos { get { if (_propertyInfos == null) { PropertyInfo[] propertyInfos = new PropertyInfo[_propertyEntries.Count]; int i = 0; foreach (PersonalizablePropertyEntry entry in _propertyEntries.Values) { propertyInfos[i] = entry.PropertyInfo; i++; } // Set field after the values have been computed, so field will not be cached // if an exception is thrown. _propertyInfos = propertyInfos; } return _propertyInfos; } } private void InitializePersonalizableProperties() { _propertyEntries = new HybridDictionary(/* caseInsensitive */ false); // Get all public and non-public instance properties, including those declared on // base types. BindingFlags flags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic; PropertyInfo[] props = _type.GetProperties(flags); // Sorts PropertyInfos according to their DeclaringType. Base types appear before derived types. Array.Sort(props, new DeclaringTypeComparer()); // For each PropertyInfo, add it to the dictionary if it is personalizable, else remove // it from the dictionary. We need to remove it from the dictionary, in case the base // type declared a valid personalizable property of the same name (VSWhidbey 237437). if ((props != null) && (props.Length != 0)) { for (int i = 0; i < props.Length; i++) { PropertyInfo pi = props[i]; string name = pi.Name; // Get the PersonalizableAttribute (and include any inherited metadata) PersonalizableAttribute pa = Attribute.GetCustomAttribute(pi, PersonalizableAttribute.PersonalizableAttributeType, true) as PersonalizableAttribute; // If the property is not personalizable, remove it from the dictionary if (pa == null || !pa.IsPersonalizable) { _propertyEntries.Remove(name); continue; } // If the property has parameters, or does not have a public get or set // accessor, throw an exception. ParameterInfo[] paramList = pi.GetIndexParameters(); if ((paramList != null && paramList.Length > 0) || pi.GetGetMethod() == null || pi.GetSetMethod() == null) { throw new HttpException(SR.GetString( SR.PersonalizableTypeEntry_InvalidProperty, name, _type.FullName)); } // Add the property to the dictionary _propertyEntries[name] = new PersonalizablePropertyEntry(pi, pa); } } } // Sorts PropertyInfos according to their DeclaringType. Base types appear before derived types. private sealed class DeclaringTypeComparer : IComparer { public int Compare(Object x, Object y) { Type declaringTypeX = ((PropertyInfo)x).DeclaringType; Type declaringTypeY = ((PropertyInfo)y).DeclaringType; if (declaringTypeX == declaringTypeY) { return 0; } else if (declaringTypeX.IsSubclassOf(declaringTypeY)) { return 1; } else { return -1; } } } } }
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- Membership.cs
- Invariant.cs
- HostedBindingBehavior.cs
- ISO2022Encoding.cs
- datacache.cs
- TableAdapterManagerNameHandler.cs
- TextBlockAutomationPeer.cs
- TextUtf8RawTextWriter.cs
- ArgumentOutOfRangeException.cs
- VirtualizedItemProviderWrapper.cs
- FileClassifier.cs
- Vector3dCollection.cs
- FileUtil.cs
- WebPartConnectionsConfigureVerb.cs
- Parser.cs
- DetailsViewPagerRow.cs
- VisualBrush.cs
- BinaryWriter.cs
- CatalogZoneBase.cs
- LinkedList.cs
- DataErrorValidationRule.cs
- StdValidatorsAndConverters.cs
- FontStretches.cs
- PropertyMapper.cs
- SkewTransform.cs
- FixedSOMPageConstructor.cs
- CreateParams.cs
- InkCanvas.cs
- CompilationRelaxations.cs
- ComboBox.cs
- SourceExpressionException.cs
- XmlSchemaImport.cs
- OdbcErrorCollection.cs
- FileCodeGroup.cs
- ResXBuildProvider.cs
- CryptoKeySecurity.cs
- GorillaCodec.cs
- FieldToken.cs
- ExternalCalls.cs
- BoundPropertyEntry.cs
- _CookieModule.cs
- CodeAssignStatement.cs
- List.cs
- RijndaelManagedTransform.cs
- DelegateCompletionCallbackWrapper.cs
- ReaderWriterLock.cs
- SqlParameterCollection.cs
- hresults.cs
- Timer.cs
- HtmlInputImage.cs
- RectangleGeometry.cs
- TimelineClockCollection.cs
- CngKey.cs
- ReachObjectContext.cs
- ParallelTimeline.cs
- AvTraceDetails.cs
- FileDialogCustomPlace.cs
- ExtensionElementCollection.cs
- OracleInfoMessageEventArgs.cs
- DateTimeOffsetStorage.cs
- ElementAction.cs
- WebPart.cs
- CompositeDataBoundControl.cs
- safesecurityhelperavalon.cs
- ClientFormsAuthenticationCredentials.cs
- HttpWriter.cs
- SafeNativeMemoryHandle.cs
- RSAProtectedConfigurationProvider.cs
- CheckableControlBaseAdapter.cs
- Pen.cs
- GroupItem.cs
- DateTimeParse.cs
- RegexCaptureCollection.cs
- TextFindEngine.cs
- Triplet.cs
- OpacityConverter.cs
- HttpHandlersSection.cs
- FontDifferentiator.cs
- FormatPage.cs
- DataSourceComponent.cs
- SqlAliaser.cs
- SocketElement.cs
- InfoCardRSAPKCS1KeyExchangeFormatter.cs
- XmlSchemaImport.cs
- EntityClassGenerator.cs
- XPathAncestorIterator.cs
- Positioning.cs
- objectquery_tresulttype.cs
- UnsafeNativeMethods.cs
- returneventsaver.cs
- ConvertEvent.cs
- SQLMembershipProvider.cs
- IndicShape.cs
- ParameterReplacerVisitor.cs
- CookieHandler.cs
- MessageQueueConverter.cs
- LambdaCompiler.Logical.cs
- WebServiceMethodData.cs
- DocumentReference.cs
- ProcessStartInfo.cs