Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / CompMod / System / ComponentModel / Component.cs / 1 / Component.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.ComponentModel {
using System;
using System.ComponentModel.Design;
using System.ComponentModel.Design.Serialization;
using System.Runtime.InteropServices;
using System.Security.Permissions;
///
/// Provides the default implementation for the
///
///
[
ComVisible(true),
ClassInterface(ClassInterfaceType.AutoDispatch),
DesignerCategory("Component")
]
public class Component : MarshalByRefObject, IComponent {
///
/// Static hask key for the Disposed event. This field is read-only.
///
private static readonly object EventDisposed = new object();
private ISite site;
private EventHandlerList events;
~Component() {
Dispose(false);
}
///
/// This property returns true if the component is in a mode that supports
/// raising events. By default, components always support raising their events
/// and therefore this method always returns true. You can override this method
/// in a deriving class and change it to return false when needed. if the return
/// value of this method is false, the EventList collection returned by the Events
/// property will always return null for an event. Events can still be added and
/// removed from the collection, but retrieving them through the collection's Item
/// property will always return null.
///
protected virtual bool CanRaiseEvents
{
get
{
return true;
}
}
///
/// Internal API that allows the event handler list class to access the
/// CanRaiseEvents property.
///
internal bool CanRaiseEventsInternal
{
get
{
return CanRaiseEvents;
}
}
///
/// Adds a event handler to listen to the Disposed event on the component.
///
[
Browsable(false),
EditorBrowsable(EditorBrowsableState.Advanced)
]
public event EventHandler Disposed {
add {
Events.AddHandler(EventDisposed, value);
}
remove {
Events.RemoveHandler(EventDisposed, value);
}
}
///
/// Gets the list of event handlers that are attached to this component.
///
protected EventHandlerList Events {
get {
if (events == null) {
events = new EventHandlerList(this);
}
return events;
}
}
///
///
/// Gets or sets the site of the
///
[
Browsable(false),
DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
]
public virtual ISite Site {
get { return site;}
set { site = value;}
}
///
///
/// Disposes of the
///
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2213:DisposableFieldsShouldBeDisposed")]
public void Dispose() {
Dispose(true);
GC.SuppressFinalize(this);
}
///
///
/// Disposes all the resources associated with this component.
/// If disposing is false then you must never touch any other
/// managed objects, as they may already be finalized. When
/// in this state you should dispose any native resources
/// that you have a reference to.
///
///
/// When disposing is true then you should dispose all data
/// and objects you have references to. The normal implementation
/// of this method would look something like:
///
///
/// public void Dispose() {
/// Dispose(true);
/// GC.SuppressFinalize(this);
/// }
///
/// protected virtual void Dispose(bool disposing) {
/// if (disposing) {
/// if (myobject != null) {
/// myobject.Dispose();
/// myobject = null;
/// }
/// }
/// if (myhandle != IntPtr.Zero) {
/// NativeMethods.Release(myhandle);
/// myhandle = IntPtr.Zero;
/// }
/// }
///
/// ~MyClass() {
/// Dispose(false);
/// }
///
///
/// For base classes, you should never override the Finalier (~Class in C#)
/// or the Dispose method that takes no arguments, rather you should
/// always override the Dispose method that takes a bool.
///
///
/// protected override void Dispose(bool disposing) {
/// if (disposing) {
/// if (myobject != null) {
/// myobject.Dispose();
/// myobject = null;
/// }
/// }
/// if (myhandle != IntPtr.Zero) {
/// NativeMethods.Release(myhandle);
/// myhandle = IntPtr.Zero;
/// }
/// base.Dispose(disposing);
/// }
///
///
protected virtual void Dispose(bool disposing) {
if (disposing) {
lock(this) {
if (site != null && site.Container != null) {
site.Container.Remove(this);
}
if (events != null) {
EventHandler handler = (EventHandler)events[EventDisposed];
if (handler != null) handler(this, EventArgs.Empty);
}
}
}
}
// Returns the component's container.
//
///
///
/// Returns the
///
[
Browsable(false),
DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
]
public IContainer Container {
get {
ISite s = site;
return s == null? null : s.Container;
}
}
///
///
/// Returns an object representing a service provided by
/// the
///
protected virtual object GetService(Type service) {
ISite s = site;
return((s== null) ? null : s.GetService(service));
}
///
///
/// Gets a value indicating whether the
///
[
Browsable(false),
DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
]
protected bool DesignMode {
get {
ISite s = site;
return(s == null) ? false : s.DesignMode;
}
}
///
///
/// Returns a
///
public override String ToString() {
ISite s = site;
if (s != null)
return s.Name + " [" + GetType().FullName + "]";
else
return GetType().FullName;
}
}
}
// 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.Design;
using System.ComponentModel.Design.Serialization;
using System.Runtime.InteropServices;
using System.Security.Permissions;
///
/// Provides the default implementation for the
///
///
[
ComVisible(true),
ClassInterface(ClassInterfaceType.AutoDispatch),
DesignerCategory("Component")
]
public class Component : MarshalByRefObject, IComponent {
///
/// Static hask key for the Disposed event. This field is read-only.
///
private static readonly object EventDisposed = new object();
private ISite site;
private EventHandlerList events;
~Component() {
Dispose(false);
}
///
/// This property returns true if the component is in a mode that supports
/// raising events. By default, components always support raising their events
/// and therefore this method always returns true. You can override this method
/// in a deriving class and change it to return false when needed. if the return
/// value of this method is false, the EventList collection returned by the Events
/// property will always return null for an event. Events can still be added and
/// removed from the collection, but retrieving them through the collection's Item
/// property will always return null.
///
protected virtual bool CanRaiseEvents
{
get
{
return true;
}
}
///
/// Internal API that allows the event handler list class to access the
/// CanRaiseEvents property.
///
internal bool CanRaiseEventsInternal
{
get
{
return CanRaiseEvents;
}
}
///
/// Adds a event handler to listen to the Disposed event on the component.
///
[
Browsable(false),
EditorBrowsable(EditorBrowsableState.Advanced)
]
public event EventHandler Disposed {
add {
Events.AddHandler(EventDisposed, value);
}
remove {
Events.RemoveHandler(EventDisposed, value);
}
}
///
/// Gets the list of event handlers that are attached to this component.
///
protected EventHandlerList Events {
get {
if (events == null) {
events = new EventHandlerList(this);
}
return events;
}
}
///
///
/// Gets or sets the site of the
///
[
Browsable(false),
DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
]
public virtual ISite Site {
get { return site;}
set { site = value;}
}
///
///
/// Disposes of the
///
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2213:DisposableFieldsShouldBeDisposed")]
public void Dispose() {
Dispose(true);
GC.SuppressFinalize(this);
}
///
///
/// Disposes all the resources associated with this component.
/// If disposing is false then you must never touch any other
/// managed objects, as they may already be finalized. When
/// in this state you should dispose any native resources
/// that you have a reference to.
///
///
/// When disposing is true then you should dispose all data
/// and objects you have references to. The normal implementation
/// of this method would look something like:
///
///
/// public void Dispose() {
/// Dispose(true);
/// GC.SuppressFinalize(this);
/// }
///
/// protected virtual void Dispose(bool disposing) {
/// if (disposing) {
/// if (myobject != null) {
/// myobject.Dispose();
/// myobject = null;
/// }
/// }
/// if (myhandle != IntPtr.Zero) {
/// NativeMethods.Release(myhandle);
/// myhandle = IntPtr.Zero;
/// }
/// }
///
/// ~MyClass() {
/// Dispose(false);
/// }
///
///
/// For base classes, you should never override the Finalier (~Class in C#)
/// or the Dispose method that takes no arguments, rather you should
/// always override the Dispose method that takes a bool.
///
///
/// protected override void Dispose(bool disposing) {
/// if (disposing) {
/// if (myobject != null) {
/// myobject.Dispose();
/// myobject = null;
/// }
/// }
/// if (myhandle != IntPtr.Zero) {
/// NativeMethods.Release(myhandle);
/// myhandle = IntPtr.Zero;
/// }
/// base.Dispose(disposing);
/// }
///
///
protected virtual void Dispose(bool disposing) {
if (disposing) {
lock(this) {
if (site != null && site.Container != null) {
site.Container.Remove(this);
}
if (events != null) {
EventHandler handler = (EventHandler)events[EventDisposed];
if (handler != null) handler(this, EventArgs.Empty);
}
}
}
}
// Returns the component's container.
//
///
///
/// Returns the
///
[
Browsable(false),
DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
]
public IContainer Container {
get {
ISite s = site;
return s == null? null : s.Container;
}
}
///
///
/// Returns an object representing a service provided by
/// the
///
protected virtual object GetService(Type service) {
ISite s = site;
return((s== null) ? null : s.GetService(service));
}
///
///
/// Gets a value indicating whether the
///
[
Browsable(false),
DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
]
protected bool DesignMode {
get {
ISite s = site;
return(s == null) ? false : s.DesignMode;
}
}
///
///
/// Returns a
///
public override String ToString() {
ISite s = site;
if (s != null)
return s.Name + " [" + GetType().FullName + "]";
else
return GetType().FullName;
}
}
}
// 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
- AxisAngleRotation3D.cs
- SpecialFolderEnumConverter.cs
- SchemaImporterExtensionElement.cs
- DiscoveryEndpointElement.cs
- SHA1CryptoServiceProvider.cs
- PackageDocument.cs
- ServiceReference.cs
- TemplateApplicationHelper.cs
- AddingNewEventArgs.cs
- HttpStreamFormatter.cs
- ProxyGenerator.cs
- Attribute.cs
- Converter.cs
- XamlTypeMapperSchemaContext.cs
- ConfigXmlComment.cs
- WizardPanel.cs
- MonthChangedEventArgs.cs
- DeleteWorkflowOwnerCommand.cs
- entityreference_tresulttype.cs
- KeyEvent.cs
- Attributes.cs
- RemotingConfigParser.cs
- TrustSection.cs
- DocumentReferenceCollection.cs
- SHA1CryptoServiceProvider.cs
- GroupBoxRenderer.cs
- HandleRef.cs
- SyndicationContent.cs
- OneToOneMappingSerializer.cs
- AssociationSet.cs
- Operand.cs
- DateTimeValueSerializer.cs
- SimpleWebHandlerParser.cs
- PrintDialog.cs
- InitializationEventAttribute.cs
- GridViewDeletedEventArgs.cs
- MetadataProperty.cs
- WorkflowTransactionService.cs
- UTF7Encoding.cs
- XmlQuerySequence.cs
- EntityDataSourceWrapper.cs
- AppDomainUnloadedException.cs
- TaskHelper.cs
- RegexCapture.cs
- mansign.cs
- PropertyEntry.cs
- MarkupExtensionParser.cs
- AcceptorSessionSymmetricMessageSecurityProtocol.cs
- TryLoadRunnableWorkflowCommand.cs
- Console.cs
- ChangeConflicts.cs
- DataGridViewColumnDividerDoubleClickEventArgs.cs
- DbConnectionPoolGroup.cs
- AssemblyName.cs
- DesignColumn.cs
- HttpMethodConstraint.cs
- ListViewDeleteEventArgs.cs
- PtsHost.cs
- DataGridViewAccessibleObject.cs
- RowType.cs
- ConnectionManagementElement.cs
- VSWCFServiceContractGenerator.cs
- SerializationSectionGroup.cs
- NamespaceList.cs
- DbConnectionInternal.cs
- TextTreeTextBlock.cs
- RijndaelManagedTransform.cs
- ViewManager.cs
- ConfigXmlText.cs
- PassportAuthenticationEventArgs.cs
- ParameterElementCollection.cs
- CompiledQuery.cs
- ColumnMapVisitor.cs
- HttpCapabilitiesSectionHandler.cs
- PreservationFileWriter.cs
- SQLSingleStorage.cs
- DataGridViewRowCancelEventArgs.cs
- BrowserCapabilitiesCompiler.cs
- IIS7UserPrincipal.cs
- WpfSharedXamlSchemaContext.cs
- Token.cs
- CellParaClient.cs
- StringValueConverter.cs
- StandardCommands.cs
- Translator.cs
- GACIdentityPermission.cs
- UnionCqlBlock.cs
- CommonDialog.cs
- HashHelpers.cs
- GridItem.cs
- ChildDocumentBlock.cs
- TextEndOfSegment.cs
- SmiEventSink.cs
- ColorConvertedBitmapExtension.cs
- WebPartVerbCollection.cs
- xml.cs
- ServiceBuildProvider.cs
- SliderAutomationPeer.cs
- LinqDataSourceInsertEventArgs.cs
- Rect3D.cs