DataAsyncCommand.OnCancel Method
Dispatches the asynchronous cancel operation to the appropriate synchronous method.
Namespace: Microsoft.VisualStudio.Data.Framework
Assembly: Microsoft.VisualStudio.Data.Framework (in Microsoft.VisualStudio.Data.Framework.dll)
Syntax
'宣告
Protected Overridable Sub OnCancel ( _
userState As Object _
)
protected virtual void OnCancel(
Object userState
)
protected:
virtual void OnCancel(
Object^ userState
)
abstract OnCancel :
userState:Object -> unit
override OnCancel :
userState:Object -> unit
protected function OnCancel(
userState : Object
)
Parameters
- userState
Type: System.Object
The unique identifier of an asynchronous operation to cancel.
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.