如何：实现 ChainStream 方法以保存对流对象的引用

下面的示例演示 ChainStream 方法的常规实现。

示例

    ' Save the Stream representing the SOAP request or SOAP response
    ' into a local memory buffer.
    Public Overrides Function ChainStream(stream As Stream) As Stream
        ' Save the passed in Stream in a member variable.
        oldStream = stream

        ' Create a new instance of a Stream and save that in a member
        ' variable.
        newStream = New MemoryStream()
        Return newStream
    End Function

    // Save the Stream representing the SOAP request or SOAP response into
    // a local memory buffer.
    public override Stream ChainStream( Stream stream ){
        // Save the passed in Stream in a member variable.
        oldStream = stream;

        // Create a new instance of a Stream and save that in a member
        // variable.
        newStream = new MemoryStream();
        return newStream;
    }

请参见

任务

演练：使用 SOAP 扩展更改 SOAP 消息

版权所有 (C) 2007 Microsoft Corporation。保留所有权利。