IClientMessageInspector.BeforeSendRequest Method
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Enables inspection or modification of a message before a request message is sent to a service.
Namespace: System.ServiceModel.Dispatcher
Assembly: System.ServiceModel (in System.ServiceModel.dll)
Syntax
'Declaration
Function BeforeSendRequest ( _
ByRef request As Message, _
channel As IClientChannel _
) As Object
Object BeforeSendRequest(
ref Message request,
IClientChannel channel
)
Parameters
- request
Type: System.ServiceModel.Channels.Message%
The message to be sent to the service.
- channel
Type: System.ServiceModel.IClientChannel
The Silverlight client object channel.
Return Value
Type: System.Object
The object that is returned as the correlationState argument of the AfterReceiveReply method. This is nulla null reference (Nothing in Visual Basic) if no correlation state is used.
The best practice is to make this a System.Guid to ensure that no two correlationState objects are the same.
Remarks
Implement the BeforeSendRequest to inspect or modify a request message before it is sent.
Examples
The following code example shows an implementation that writes strings to the console when the implementation is called.
The following code example shows how to use an System.ServiceModel.Description.IEndpointBehavior to insert the client message inspector in the client endpoint.
Version Information
Silverlight
Supported in: 5, 4
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.