We have created a simple function in C# external assembly which returns string and doesn't accept any parameter. We have configured it in Standalone Report Designer config and function is available under "misc" section. We have used the same on a text box using fully qualified name (assembly.class.function).
But on report preview, text box is blank. We are able to attach the process in VS and debug point is loaded which means, assembly is loaded in attached process but it never hits the break point. Using Iif function we found that function call on report returns null but it seems that it never calls the C# implementation.
Are we missing anything here?