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
- Deflater.cs
- RelationshipType.cs
- DoubleCollectionConverter.cs
- TogglePattern.cs
- WebConfigurationFileMap.cs
- XmlElementList.cs
- TableParaClient.cs
- Models.cs
- LoginCancelEventArgs.cs
- KeyPullup.cs
- TypeHelper.cs
- Label.cs
- ExtensionSimplifierMarkupObject.cs
- XmlTextAttribute.cs
- NotConverter.cs
- HttpCachePolicyWrapper.cs
- SystemResourceKey.cs
- HtmlTitle.cs
- Point3DKeyFrameCollection.cs
- JsonReader.cs
- ExtendedPropertiesHandler.cs
- DesignerLoader.cs
- EventLogReader.cs
- DesignTimeXamlWriter.cs
- UndoEngine.cs
- DCSafeHandle.cs
- AuthorizationContext.cs
- HttpWriter.cs
- OdbcCommand.cs
- SqlBooleanMismatchVisitor.cs
- _DigestClient.cs
- StreamInfo.cs
- COM2IDispatchConverter.cs
- DynamicValidatorEventArgs.cs
- TableRow.cs
- TraceSection.cs
- WindowHideOrCloseTracker.cs
- Main.cs
- CacheModeConverter.cs
- TextHidden.cs
- RootAction.cs
- VideoDrawing.cs
- DotExpr.cs
- RegistryPermission.cs
- BamlCollectionHolder.cs
- WebPartConnectionsConnectVerb.cs
- SourceElementsCollection.cs
- FixedElement.cs
- SqlVisitor.cs
- SmiEventSink.cs
- CatalogZoneBase.cs
- EventWaitHandleSecurity.cs
- DrawingCollection.cs
- StringSorter.cs
- CFGGrammar.cs
- StylusLogic.cs
- TcpChannelListener.cs
- DelimitedListTraceListener.cs
- ElementProxy.cs
- DeploymentSectionCache.cs
- ToolStripArrowRenderEventArgs.cs
- altserialization.cs
- FontStretch.cs
- Label.cs
- PrivilegedConfigurationManager.cs
- EntityParameterCollection.cs
- XmlHierarchicalEnumerable.cs
- XPathDocumentIterator.cs
- ADMembershipProvider.cs
- HttpConfigurationContext.cs
- DataGridViewTextBoxEditingControl.cs
- NameNode.cs
- ParallelQuery.cs
- NavigationExpr.cs
- SqlConnectionString.cs
- DistributedTransactionPermission.cs
- RoutedEventValueSerializer.cs
- UniqueIdentifierService.cs
- StoreAnnotationsMap.cs
- Mutex.cs
- XmlILModule.cs
- HealthMonitoringSection.cs
- StatusBarDrawItemEvent.cs
- HatchBrush.cs
- UInt32.cs
- ProfileEventArgs.cs
- ParameterCollection.cs
- SoundPlayerAction.cs
- Hex.cs
- MessageRpc.cs
- BufferedStream.cs
- SoapObjectInfo.cs
- SqlClientMetaDataCollectionNames.cs
- SqlXml.cs
- Parameter.cs
- ConnectionStringsExpressionBuilder.cs
- AsyncResult.cs
- HtmlInputReset.cs
- FilterQuery.cs
- NodeLabelEditEvent.cs