[mono-cecil] Method invoking

[oleg gordiychuck]

Hello!
I have some assembly ("mylib.dll"), and my task is to build program
where i can choose from comboboxes class name and method name and
invoke this method with some default parameters and print result. If i
understood right, Cecil is exactly what i need.
I have no problems with getting class and method names, but i can't
(due to no documentation) understand, how can i invoke methods?

Here's my code:
                private static void InvokeMethod(object obj,EventArgs e)
                {
                        string str_type = classCombo.ActiveText;
                        string str_method = methodsCombo.ActiveText;
                        if (str_type != "" && str_method != "")
                        {
                                MethodDefinition method = 
GetMetDef(str_type,str_method);
                                MethodReference refer = 
method.GetOriginalMethod();

                // HERE i need somehow to call method, for example without any
paramaters

                        }
                }

GetMetDef - is a function, which returns MethodDefinition from my
assembly by class name and method name. I tried to create CilWorker,
but nothing happend. I think i don't understand how it should work.

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mono-cecil