WCF: How to get Binding object from configuration

Question

I would like to get Binding object from web.config or app.config.

So, this code works:

wcfTestClient = new TestServiceClient("my_endpoint", Url + "/TestService.svc");

but I would like to do the following:

Binding binding = DoSomething();
wcfTestClient = new TestServiceClient(binding, Url + "/TestService.svc");

I am interested in DoSomething() method, of course.

Answer 1

One cheeky option might be to create an instance with the default constructor, to use as a template:

Binding defaultBinding;
using(TestServiceClient client = new TestServiceClient()) {
    defaultBinding = client.Endpoint.Binding;
}

Then tuck this away and re-use it. Any help?

Answer 2

You can instantiate a binding giving a binding configuration name from App.config/Web.config.

http://msdn.microsoft.com/en-us/library/ms575163.aspx

Answer 3

Check out this blog post from Mark Gabarra, it shows how to enumerate the configured bindings

Answer 4

If you don't know the type of the binding until runtime, you can use the following:

return (Binding)Activator.CreateInstance(bindingType, endpointConfigName);

Where bindingType of the type of the binding and endpointConfigName is the name of specified in the config file.

All the included bindings provide a constructor that takes the endpointConfigurationName as the only parameter so this should work for all of them. I have used it for WsHttpBinding and NetTcpBinding without problems.