passing MATLAB's handle objects to .NET function

Hello everyone!

Is that possible to give matlab oobject as argument to .Net function? Actually I want to execute some class member asynchroneously. Therefore, the BeginInvoke method should pass the handle of related object to asynchron function. I am using the NetDocDelegate.cs defined in the documentation to which I have added the following line :

public delegated double delRef(dynamic arg);

and my class definition is defined as :

classdef usier < handle

      properties
          stock
          value
      end

      methods
          function obj = usier(stock,value)
              obj.stock = stock;
              obj.value=value;
          end

          function receive(obj,objref)
              divDel = NetDocDelegate.delRef(@response);
              asyncRes =divDel.BeginInvoke(objref,@obj.display);            
          end

          function result=response(obj)
              result=[obj.stock,obj.value];
          end

          function dispay(obj,asyncRes)
             result = asyncRes.AsyncDelegate.EndInvoke(asyncRes);
             fprintf(1,'neighbor''s stock is:%d\t and value is:%d\n',result(1),result(2));
          end
      end
  end

Then I created two instance of usier class

>>u=usier(12,34);
>> f=usier(45,98);
>> f.receive(u)

the last command should executes the asynchron function and then retreives the result. unfortunately matlab generate the following Error:

No method 'BeginInvoke' with matching signature found for class 'NetDocDelegate.delRef'.

ps:I added the assembly files first with

dllPath = fullfile('c:','MATLAB\DynChannel\','NetDocDelegate.dll');
NET.addAssembly(dllPath);

can someone help me?

Thanks all,

Bolivar