C# – Calling C# COM object

ccom

Ok, I've created a c# dll, made all its interface and methods all ComVisible(true). Added it to the GAC using gacutil, then registered it using regasm and created a type library tlb file.

Now I have another c# project that I want to make calls to that com object, how can I do this? What would the code roughly look like to import the com object then use its calls?

Best Answer

First of all, why do you want to call that C# Assembly (that you've made comvisible) in your other C# project via COM ? That is not necessary ...

Ontopic: If you've created a tlb file, then you shouldn't do anything special. You can just reference the 'runtime callable wrapper' of the c#assembly you've created.

Related Solutions

C# – Calling the base constructor in C#

Modify your constructor to the following so that it calls the base class constructor properly:

public class MyExceptionClass : Exception
{
    public MyExceptionClass(string message, string extrainfo) : base(message)
    {
        //other stuff here
    }
}

Note that a constructor is not something that you can call anytime within a method. That's the reason you're getting errors in your call in the constructor body.

.net – Excel .NET COM – Automation error. The system cannot find the file specified

You need to either invoke regasm with the full path to the assembly as the codebase parameter value or put the assembly into some location which is always on the path for searching libraries. Otherwise it will not be found when the client tries to instantiate the COM object.

Best Answer

Related Solutions

C# – Calling the base constructor in C#

.net – Excel .NET COM – Automation error. The system cannot find the file specified

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