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ClientBase<TChannel> Constructor (InstanceContext, String)

Initializes a new instance of the ClientBase<TChannel> class using the specified callback service and endpoint configuration information.

Namespace:  System.ServiceModel
Assembly:  System.ServiceModel (in System.ServiceModel.dll)

protected ClientBase(
	InstanceContext callbackInstance,
	string endpointConfigurationName


Type: System.ServiceModel.InstanceContext
The callback object that the client uses to listen for messages from the connected service.
Type: System.String
The name of the endpoint in the application configuration file.


The callback instance is null.


The endpoint is null.


The endpoint cannot be found or the endpoint contract is not valid.

Use this constructor to pass a service object that implements the callback contract for the target service and determine the target endpoint information from the client application configuration file. The target value is located by finding the name attribute of the client <endpoint> element.

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.