How to add HttpHeaders to WCF client?

[Saranya B]

Hello Everybody, I want to add some http headers to my request to service from WCF client. After some google around, I found the code snippet at http://www.west-wind.com/WebLog/posts/177835.aspx\[[^](http://www.west-wind.com/WebLog/posts/177835.aspx "New Window")]">and followed it. But, It throws a generic exception that the Underlying connection is closed. No inner messages. I couldnt find out where I am going wrong... My code looks like this...

HttpRequestMessageProperty httpRequestProperty = new HttpRequestMessageProperty();
httpRequestProperty.Method = "POST";
httpRequestProperty.SuppressEntityBody = true;
httpRequestProperty.Headers.Add("testdata", "My Header");

        using (OperationContextScope scope = new OperationContextScope(client.InnerChannel))
        {
            OperationContext.Current.OutgoingMessageProperties.Add(HttpRequestMessageProperty.Name,httpRequestProperty);
            Response.Write(client.ChangeOutStanding(stud).IsOutStanding);
        }

Breaking my head since morning... Couldnt find out the reason... Any help is appreciated... Thanks, Saran