Operation is not valid while ItemCollection has no inner collection. ItemCollection is uninitialized or binding on ItemsControl.ItemSource supplied null for collection.
Operation '{0}', belonging to contract ('{1}', '{2}') has an XmlSerializerFormatAttribute configured with OperationUse Encoded ...
Operation '{1}' on service instance '{0}' cannot be performed at this time. Another attempt will be made when the service ...
Operation cannot be completed because the command that created the SqlResultSet has been dissociated from the original connection. ...
Operation cannot be completed since the request context cannot be signaled at this time. Make sure workflow is not unloaded ...
Operation is not valid while ItemCollection has no inner collection. ItemCollection is uninitialized or binding on ItemsControl.ItemSource ...
Operation name overloading in a wsdl:portType is disallowed by the Profile. A wsdl:portType in a DESCRIPTION MUST have operations ...
Operation requires a transformation of the image from GDI+ to GDI. GDI does not support images with a width or height greater ...
OperationBehaviorAttribute can only go on the service class, it cannot be put on the ServiceContract interface. Method '{0}' ...
OperationContract method '{0}' in type '{1}' does not properly implement the async pattern, as more than one corresponding ...