Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / CompMod / System / ComponentModel / ExtendedPropertyDescriptor.cs / 1 / ExtendedPropertyDescriptor.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ namespace System.ComponentModel { using Microsoft.Win32; using System; using System.Collections; using System.ComponentModel.Design; using System.Diagnostics; using System.Security.Permissions; ////// /// [HostProtection(SharedState = true)] internal sealed class ExtendedPropertyDescriptor : PropertyDescriptor { private readonly ReflectPropertyDescriptor extenderInfo; // the extender property private readonly IExtenderProvider provider; // the guy providing it ////// This class wraps an PropertyDescriptor with something that looks like a property. It /// allows you to treat extended properties the same as regular properties. /// ////// Creates a new extended property info. Callers can then treat this as /// a standard property. /// public ExtendedPropertyDescriptor(ReflectPropertyDescriptor extenderInfo, Type receiverType, IExtenderProvider provider, Attribute[] attributes) : base(extenderInfo, attributes) { Debug.Assert(extenderInfo != null, "ExtendedPropertyDescriptor must have extenderInfo"); Debug.Assert(provider != null, "ExtendedPropertyDescriptor must have provider"); ArrayList attrList = new ArrayList(AttributeArray); attrList.Add(ExtenderProvidedPropertyAttribute.Create(extenderInfo, receiverType, provider)); if (extenderInfo.IsReadOnly) { attrList.Add(ReadOnlyAttribute.Yes); } Attribute[] temp = new Attribute[attrList.Count]; attrList.CopyTo(temp, 0); AttributeArray = temp; this.extenderInfo = extenderInfo; this.provider = provider; } public ExtendedPropertyDescriptor(PropertyDescriptor extender, Attribute[] attributes) : base(extender, attributes) { Debug.Assert(extender != null, "The original PropertyDescriptor must be non-null"); ExtenderProvidedPropertyAttribute attr = extender.Attributes[typeof(ExtenderProvidedPropertyAttribute)] as ExtenderProvidedPropertyAttribute; Debug.Assert(attr != null, "The original PropertyDescriptor does not have an ExtenderProvidedPropertyAttribute"); ReflectPropertyDescriptor reflectDesc = attr.ExtenderProperty as ReflectPropertyDescriptor; Debug.Assert(reflectDesc != null, "The original PropertyDescriptor has an invalid ExtenderProperty"); this.extenderInfo = reflectDesc; this.provider = attr.Provider; } ////// Determines if the the component will allow its value to be reset. /// public override bool CanResetValue(object comp) { return extenderInfo.ExtenderCanResetValue(provider, comp); } ////// Retrieves the type of the component this PropertyDescriptor is bound to. /// public override Type ComponentType { get { return extenderInfo.ComponentType; } } ////// Determines if the property can be written to. /// public override bool IsReadOnly { get { return Attributes[typeof(ReadOnlyAttribute)].Equals(ReadOnlyAttribute.Yes); } } ////// Retrieves the data type of the property. /// public override Type PropertyType { get { return extenderInfo.ExtenderGetType(provider); } } ////// Retrieves the display name of the property. This is the name that will /// be displayed in a properties window. This will be the same as the property /// name for most properties. /// public override string DisplayName { get { string name = base.DisplayName; DisplayNameAttribute displayNameAttr = Attributes[typeof(DisplayNameAttribute)] as DisplayNameAttribute; if (displayNameAttr == null || displayNameAttr.IsDefaultAttribute()) { ISite site = GetSite(provider); if (site != null) { string providerName = site.Name; if (providerName != null && providerName.Length > 0) { name = SR.GetString(SR.MetaExtenderName, name, providerName); } } } return name; } } ////// Retrieves the value of the property for the given component. This will /// throw an exception if the component does not have this property. /// public override object GetValue(object comp) { return extenderInfo.ExtenderGetValue(provider, comp); } ////// Resets the value of this property on comp to the default value. /// public override void ResetValue(object comp) { extenderInfo.ExtenderResetValue(provider, comp, this); } ////// Sets the value of this property on the given component. /// public override void SetValue(object component, object value) { extenderInfo.ExtenderSetValue(provider, component, value, this); } ////// Determines if this property should be persisted. A property is /// to be persisted if it is marked as persistable through a /// PersistableAttribute, and if the property contains something other /// than the default value. Note, however, that this method will /// return true for design time properties as well, so callers /// should also check to see if a property is design time only before /// persisting to runtime storage. /// public override bool ShouldSerializeValue(object comp) { return extenderInfo.ExtenderShouldSerializeValue(provider, comp); } /* The following code has been removed to fix FXCOP violations. The code is left here incase it needs to be resurrected in the future. ////// Creates a new extended property info. Callers can then treat this as /// a standard property. /// public ExtendedPropertyDescriptor(ReflectPropertyDescriptor extenderInfo, Type receiverType, IExtenderProvider provider) : this(extenderInfo, receiverType, provider, null) { } ////// Retrieves the object that is providing this extending property. /// public IExtenderProvider Provider { get { return provider; } } */ } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ namespace System.ComponentModel { using Microsoft.Win32; using System; using System.Collections; using System.ComponentModel.Design; using System.Diagnostics; using System.Security.Permissions; ////// /// [HostProtection(SharedState = true)] internal sealed class ExtendedPropertyDescriptor : PropertyDescriptor { private readonly ReflectPropertyDescriptor extenderInfo; // the extender property private readonly IExtenderProvider provider; // the guy providing it ////// This class wraps an PropertyDescriptor with something that looks like a property. It /// allows you to treat extended properties the same as regular properties. /// ////// Creates a new extended property info. Callers can then treat this as /// a standard property. /// public ExtendedPropertyDescriptor(ReflectPropertyDescriptor extenderInfo, Type receiverType, IExtenderProvider provider, Attribute[] attributes) : base(extenderInfo, attributes) { Debug.Assert(extenderInfo != null, "ExtendedPropertyDescriptor must have extenderInfo"); Debug.Assert(provider != null, "ExtendedPropertyDescriptor must have provider"); ArrayList attrList = new ArrayList(AttributeArray); attrList.Add(ExtenderProvidedPropertyAttribute.Create(extenderInfo, receiverType, provider)); if (extenderInfo.IsReadOnly) { attrList.Add(ReadOnlyAttribute.Yes); } Attribute[] temp = new Attribute[attrList.Count]; attrList.CopyTo(temp, 0); AttributeArray = temp; this.extenderInfo = extenderInfo; this.provider = provider; } public ExtendedPropertyDescriptor(PropertyDescriptor extender, Attribute[] attributes) : base(extender, attributes) { Debug.Assert(extender != null, "The original PropertyDescriptor must be non-null"); ExtenderProvidedPropertyAttribute attr = extender.Attributes[typeof(ExtenderProvidedPropertyAttribute)] as ExtenderProvidedPropertyAttribute; Debug.Assert(attr != null, "The original PropertyDescriptor does not have an ExtenderProvidedPropertyAttribute"); ReflectPropertyDescriptor reflectDesc = attr.ExtenderProperty as ReflectPropertyDescriptor; Debug.Assert(reflectDesc != null, "The original PropertyDescriptor has an invalid ExtenderProperty"); this.extenderInfo = reflectDesc; this.provider = attr.Provider; } ////// Determines if the the component will allow its value to be reset. /// public override bool CanResetValue(object comp) { return extenderInfo.ExtenderCanResetValue(provider, comp); } ////// Retrieves the type of the component this PropertyDescriptor is bound to. /// public override Type ComponentType { get { return extenderInfo.ComponentType; } } ////// Determines if the property can be written to. /// public override bool IsReadOnly { get { return Attributes[typeof(ReadOnlyAttribute)].Equals(ReadOnlyAttribute.Yes); } } ////// Retrieves the data type of the property. /// public override Type PropertyType { get { return extenderInfo.ExtenderGetType(provider); } } ////// Retrieves the display name of the property. This is the name that will /// be displayed in a properties window. This will be the same as the property /// name for most properties. /// public override string DisplayName { get { string name = base.DisplayName; DisplayNameAttribute displayNameAttr = Attributes[typeof(DisplayNameAttribute)] as DisplayNameAttribute; if (displayNameAttr == null || displayNameAttr.IsDefaultAttribute()) { ISite site = GetSite(provider); if (site != null) { string providerName = site.Name; if (providerName != null && providerName.Length > 0) { name = SR.GetString(SR.MetaExtenderName, name, providerName); } } } return name; } } ////// Retrieves the value of the property for the given component. This will /// throw an exception if the component does not have this property. /// public override object GetValue(object comp) { return extenderInfo.ExtenderGetValue(provider, comp); } ////// Resets the value of this property on comp to the default value. /// public override void ResetValue(object comp) { extenderInfo.ExtenderResetValue(provider, comp, this); } ////// Sets the value of this property on the given component. /// public override void SetValue(object component, object value) { extenderInfo.ExtenderSetValue(provider, component, value, this); } ////// Determines if this property should be persisted. A property is /// to be persisted if it is marked as persistable through a /// PersistableAttribute, and if the property contains something other /// than the default value. Note, however, that this method will /// return true for design time properties as well, so callers /// should also check to see if a property is design time only before /// persisting to runtime storage. /// public override bool ShouldSerializeValue(object comp) { return extenderInfo.ExtenderShouldSerializeValue(provider, comp); } /* The following code has been removed to fix FXCOP violations. The code is left here incase it needs to be resurrected in the future. ////// Creates a new extended property info. Callers can then treat this as /// a standard property. /// public ExtendedPropertyDescriptor(ReflectPropertyDescriptor extenderInfo, Type receiverType, IExtenderProvider provider) : this(extenderInfo, receiverType, provider, null) { } ////// Retrieves the object that is providing this extending property. /// public IExtenderProvider Provider { get { return provider; } } */ } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ToolStripContainer.cs
- SharedStatics.cs
- PrimaryKeyTypeConverter.cs
- Operators.cs
- HttpHeaderCollection.cs
- TagPrefixCollection.cs
- CommandLibraryHelper.cs
- TextRunCacheImp.cs
- TextRunTypographyProperties.cs
- shaperfactoryquerycacheentry.cs
- LifetimeServices.cs
- DataGridViewCellLinkedList.cs
- RequestTimeoutManager.cs
- HijriCalendar.cs
- PolicyChain.cs
- VirtualizingStackPanel.cs
- DataGridViewAdvancedBorderStyle.cs
- InternalBase.cs
- SamlConditions.cs
- AutomationIdentifier.cs
- CompiledQuery.cs
- DbXmlEnabledProviderManifest.cs
- UserNameSecurityTokenAuthenticator.cs
- SafeHGlobalHandleCritical.cs
- Style.cs
- SoapHttpTransportImporter.cs
- IQueryable.cs
- DisplayInformation.cs
- PrintPreviewDialog.cs
- ComboBox.cs
- SizeAnimationBase.cs
- PointLightBase.cs
- ExceptionRoutedEventArgs.cs
- XmlValueConverter.cs
- SrgsRule.cs
- XmlWriter.cs
- IntegerValidator.cs
- SafeSecurityHandles.cs
- ObservableCollection.cs
- ConvertersCollection.cs
- XmlAnyElementAttribute.cs
- LinearKeyFrames.cs
- UserPersonalizationStateInfo.cs
- InheritanceRules.cs
- HttpPostedFileWrapper.cs
- ObjectStateFormatter.cs
- ValidatingReaderNodeData.cs
- CompiledScopeCriteria.cs
- listviewsubitemcollectioneditor.cs
- View.cs
- CancellationTokenRegistration.cs
- ManualResetEvent.cs
- FormsAuthenticationUserCollection.cs
- DesignBindingPropertyDescriptor.cs
- MenuRenderer.cs
- NavigationPropertyEmitter.cs
- SerializationInfoEnumerator.cs
- SchemaImporterExtensionElement.cs
- UdpAnnouncementEndpoint.cs
- TcpWorkerProcess.cs
- ToolStripDropDownItem.cs
- Boolean.cs
- ApplicationId.cs
- JoinTreeNode.cs
- WindowsScroll.cs
- CustomAssemblyResolver.cs
- ObjectDisposedException.cs
- Exception.cs
- XmlSchemaNotation.cs
- XmlTextReaderImpl.cs
- ComponentManagerBroker.cs
- Compiler.cs
- ClientBuildManager.cs
- ThreadPool.cs
- SymbolDocumentInfo.cs
- sqlstateclientmanager.cs
- EntityKeyElement.cs
- _SecureChannel.cs
- SHA384Cng.cs
- CaseExpr.cs
- StringBuilder.cs
- CodeGenerationManager.cs
- AlignmentYValidation.cs
- BuildProvider.cs
- _IPv4Address.cs
- ColorBlend.cs
- LabelAutomationPeer.cs
- DataServiceKeyAttribute.cs
- IndicFontClient.cs
- FormViewPageEventArgs.cs
- DayRenderEvent.cs
- DEREncoding.cs
- StoreAnnotationsMap.cs
- CrossSiteScriptingValidation.cs
- DeclaredTypeElementCollection.cs
- RSAPKCS1SignatureDeformatter.cs
- SoapFaultCodes.cs
- StaticTextPointer.cs
- TableLayoutSettings.cs
- SHA1Cng.cs