CancelAsyncOperationRequest.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / infocard / Service / managed / Microsoft / InfoCards / CancelAsyncOperationRequest.cs / 1 / CancelAsyncOperationRequest.cs

                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------
namespace Microsoft.InfoCards
{ 
    using System;
    using System.IO; 
    using System.Text; 

    using IDT = Microsoft.InfoCards.Diagnostics.InfoCardTrace; 

    internal class CancelAsyncOperationRequest : UIAgentRequest
    {
 
        int m_asyncHandle;
 
        // 
        // Summary:
        //  Creates an new UIAgentAsyncEndRequest 
        //
        // Arguments:
        //  rpcHandle:  The RPC Context handle.
        //  inArgs:     The stream to hold the input arguments 
        //  outArgs:    The stream to hold the output arguments
        //  parent:     the parent UI Request 
        // 
        public CancelAsyncOperationRequest(
                                IntPtr rpcHandle, 
                                Stream inArgs,
                                Stream outArgs,
                                ClientUIRequest parent )
            : base( rpcHandle, inArgs, outArgs, parent ) 
        {
        } 
 
        //
        // Summary: 
        //  Read any inbound arguments.
        //
        // Remarks:
        //  read the async context handle we send at the end of the Begin call. 
        //
        protected override void OnMarshalInArgs() 
        { 
            BinaryReader breader = new InfoCardBinaryReader( InArgs, Encoding.Unicode );
 
            m_asyncHandle = breader.ReadInt32();

            IDT.ThrowInvalidArgumentConditional( 0 == m_asyncHandle, "asyncHandle" );
        } 

        // 
        // Summary: 
        //  No outbound arguments to marshal.
        // 
        protected override void OnMarshalOutArgs()
        {
        }
 
        //
        // Summary: 
        //  Process the request, and wait for the async operation to complete or be canceled. 
        //
        protected override void OnProcess() 
        {
            //
            // Look up this Async operation on the parent request and wait for completion.  Return any errors by
            // throwing the exception. 
            //
            ParentRequest.CancelAsyncOp( m_asyncHandle ); 
        } 

    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
                        

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