Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / CompMod / System / ComponentModel / NestedContainer.cs / 1305376 / NestedContainer.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.ComponentModel { using System; using System.ComponentModel; using System.Globalization; using System.IO; using System.Security.Permissions; ////// A nested container is a container that is owned by another component. Nested /// containers can be found by querying a component site's services for NestedConainter. /// Nested containers are a useful tool to establish owner relationships among components. /// All components within a nested container are named with the owning component's name /// as a prefix. /// [HostProtection(SharedState = true)] public class NestedContainer : Container, INestedContainer { private IComponent _owner; ////// Creates a new NestedContainer. /// public NestedContainer(IComponent owner) { if (owner == null) { throw new ArgumentNullException("owner"); } _owner = owner; _owner.Disposed += new EventHandler(OnOwnerDisposed); } ////// The component that owns this nested container. /// public IComponent Owner { get { return _owner; } } ////// Retrieves the name of the owning component. This may be overridden to /// provide a custom owner name. The default searches the owner's site for /// INestedSite and calls FullName, or ISite.Name if there is no nested site. /// If neither is available, this returns null. /// protected virtual string OwnerName { get { string ownerName = null; if (_owner != null && _owner.Site != null) { INestedSite nestedOwnerSite = _owner.Site as INestedSite; if (nestedOwnerSite != null) { ownerName = nestedOwnerSite.FullName; } else { ownerName = _owner.Site.Name; } } return ownerName; } } ////// Creates a site for the component within the container. /// protected override ISite CreateSite(IComponent component, string name) { if (component == null) { throw new ArgumentNullException("component"); } return new Site(component, this, name); } ////// Override of Container's dispose. /// protected override void Dispose(bool disposing) { if (disposing) { _owner.Disposed -= new EventHandler(OnOwnerDisposed); } base.Dispose(disposing); } ////// protected override object GetService(Type service) { if (service == typeof(INestedContainer)) { return this; } else { return base.GetService(service); } } ///[To be supplied.] ////// Called when our owning component is destroyed. /// private void OnOwnerDisposed(object sender, EventArgs e) { Dispose(); } ////// Simple site implementation. We do some special processing to name the site, but /// that's about it. /// private class Site : INestedSite { private IComponent component; private NestedContainer container; private string name; internal Site(IComponent component, NestedContainer container, string name) { this.component = component; this.container = container; this.name = name; } // The component sited by this component site. public IComponent Component { get { return component; } } // The container in which the component is sited. public IContainer Container { get { return container; } } public Object GetService(Type service) { return((service == typeof(ISite)) ? this : container.GetService(service)); } // Indicates whether the component is in design mode. public bool DesignMode { get { IComponent owner = container.Owner; if (owner != null && owner.Site != null) { return owner.Site.DesignMode; } return false; } } public string FullName { get { if (name != null) { string ownerName = container.OwnerName; string childName = name; if (ownerName != null) { childName = string.Format(CultureInfo.InvariantCulture, "{0}.{1}", ownerName, childName); } return childName; } return name; } } // The name of the component. // public String Name { get { return name; } set { if (value == null || name == null || !value.Equals(name)) { container.ValidateName(component, value); name = value; } } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.ComponentModel { using System; using System.ComponentModel; using System.Globalization; using System.IO; using System.Security.Permissions; ////// A nested container is a container that is owned by another component. Nested /// containers can be found by querying a component site's services for NestedConainter. /// Nested containers are a useful tool to establish owner relationships among components. /// All components within a nested container are named with the owning component's name /// as a prefix. /// [HostProtection(SharedState = true)] public class NestedContainer : Container, INestedContainer { private IComponent _owner; ////// Creates a new NestedContainer. /// public NestedContainer(IComponent owner) { if (owner == null) { throw new ArgumentNullException("owner"); } _owner = owner; _owner.Disposed += new EventHandler(OnOwnerDisposed); } ////// The component that owns this nested container. /// public IComponent Owner { get { return _owner; } } ////// Retrieves the name of the owning component. This may be overridden to /// provide a custom owner name. The default searches the owner's site for /// INestedSite and calls FullName, or ISite.Name if there is no nested site. /// If neither is available, this returns null. /// protected virtual string OwnerName { get { string ownerName = null; if (_owner != null && _owner.Site != null) { INestedSite nestedOwnerSite = _owner.Site as INestedSite; if (nestedOwnerSite != null) { ownerName = nestedOwnerSite.FullName; } else { ownerName = _owner.Site.Name; } } return ownerName; } } ////// Creates a site for the component within the container. /// protected override ISite CreateSite(IComponent component, string name) { if (component == null) { throw new ArgumentNullException("component"); } return new Site(component, this, name); } ////// Override of Container's dispose. /// protected override void Dispose(bool disposing) { if (disposing) { _owner.Disposed -= new EventHandler(OnOwnerDisposed); } base.Dispose(disposing); } ////// protected override object GetService(Type service) { if (service == typeof(INestedContainer)) { return this; } else { return base.GetService(service); } } ///[To be supplied.] ////// Called when our owning component is destroyed. /// private void OnOwnerDisposed(object sender, EventArgs e) { Dispose(); } ////// Simple site implementation. We do some special processing to name the site, but /// that's about it. /// private class Site : INestedSite { private IComponent component; private NestedContainer container; private string name; internal Site(IComponent component, NestedContainer container, string name) { this.component = component; this.container = container; this.name = name; } // The component sited by this component site. public IComponent Component { get { return component; } } // The container in which the component is sited. public IContainer Container { get { return container; } } public Object GetService(Type service) { return((service == typeof(ISite)) ? this : container.GetService(service)); } // Indicates whether the component is in design mode. public bool DesignMode { get { IComponent owner = container.Owner; if (owner != null && owner.Site != null) { return owner.Site.DesignMode; } return false; } } public string FullName { get { if (name != null) { string ownerName = container.OwnerName; string childName = name; if (ownerName != null) { childName = string.Format(CultureInfo.InvariantCulture, "{0}.{1}", ownerName, childName); } return childName; } return name; } } // The name of the component. // public String Name { get { return name; } set { if (value == null || name == null || !value.Equals(name)) { container.ValidateName(component, value); name = value; } } } } } } // 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
- ReaderWriterLockWrapper.cs
- RegistrationServices.cs
- XmlTypeMapping.cs
- ResourceAttributes.cs
- TimeoutStream.cs
- PropertyFilterAttribute.cs
- TypeResolver.cs
- ListViewItemEventArgs.cs
- TreeViewHitTestInfo.cs
- DesignerAutoFormatStyle.cs
- XmlParserContext.cs
- Message.cs
- AssemblyLoader.cs
- FontWeight.cs
- RootProfilePropertySettingsCollection.cs
- DiscreteKeyFrames.cs
- ColumnHeader.cs
- OAVariantLib.cs
- SqlPersonalizationProvider.cs
- UnsafeNativeMethodsMilCoreApi.cs
- EventRoute.cs
- TagMapCollection.cs
- Rule.cs
- MethodExpr.cs
- ResourceContainer.cs
- SelectionItemProviderWrapper.cs
- Classification.cs
- DataContext.cs
- PseudoWebRequest.cs
- WpfKnownType.cs
- DataServiceContext.cs
- AuthenticationModulesSection.cs
- DataTablePropertyDescriptor.cs
- CatchBlock.cs
- AspCompat.cs
- StreamWriter.cs
- oledbmetadatacollectionnames.cs
- ScrollChrome.cs
- CharacterMetricsDictionary.cs
- CodeArgumentReferenceExpression.cs
- ModelFactory.cs
- ActivityPreviewDesigner.cs
- ProgressBar.cs
- selecteditemcollection.cs
- DatagridviewDisplayedBandsData.cs
- DataGridPageChangedEventArgs.cs
- Int32Rect.cs
- ElementsClipboardData.cs
- WinInetCache.cs
- FileDialog.cs
- MultiSelector.cs
- CodeArrayCreateExpression.cs
- CodeMethodMap.cs
- _ServiceNameStore.cs
- WorkflowServiceAttributesTypeConverter.cs
- SqlInternalConnectionTds.cs
- TiffBitmapEncoder.cs
- DataExpression.cs
- ProfessionalColors.cs
- WebService.cs
- FileInfo.cs
- SafeProcessHandle.cs
- XmlWriterSettings.cs
- FileSystemWatcher.cs
- XmlToDatasetMap.cs
- ToolboxCategory.cs
- ConfigXmlAttribute.cs
- FlatButtonAppearance.cs
- HttpApplicationFactory.cs
- SinglePhaseEnlistment.cs
- SafeTimerHandle.cs
- Message.cs
- CodeAttributeArgumentCollection.cs
- DataTable.cs
- ExpressionDumper.cs
- SafeHandles.cs
- SerializationException.cs
- PropertyPushdownHelper.cs
- EventData.cs
- GridViewRowPresenter.cs
- figurelengthconverter.cs
- DataServiceRequestArgs.cs
- SqlRewriteScalarSubqueries.cs
- SecurityHelper.cs
- GetLastErrorDetailsRequest.cs
- ProxyAttribute.cs
- BitmapPalettes.cs
- Label.cs
- WebPartChrome.cs
- StrokeDescriptor.cs
- ParagraphResult.cs
- C14NUtil.cs
- LayoutTable.cs
- TypedDataSetSchemaImporterExtension.cs
- SvcMapFileSerializer.cs
- StructuralObject.cs
- ComponentEvent.cs
- TraceListener.cs
- EpmContentSerializerBase.cs
- SqlDependencyListener.cs