Object Reference not set to an instance of an object

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    • February 1, 2010 at 3:33 PM #24176
      community-content

        Hi I am calling .Net assembly from orchestration and I am getting an error “Object Reference not set to an instance of an object”. I am calling a serializable class with non-static method. in the orchestration view I created a variable and assigned to the .net class and I am calling in the expression shape.

        varString = classvariable.classmethod(str);

        can anyone tell me where I am going wrong?

         

        Thanks

      • February 2, 2010 at 4:57 AM #24180
        community-content

          Do you return a variable string in your .NET assembly?

          Type your code here, so we can analyze better.

          • February 2, 2010 at 7:48 AM #24181
            community-content

              Hi Thanks for the response, here is my code, the method returns a string.

              ResponseString = varValidateXml.ValidateXml(ResponseString);

              varValidateXml is the variabe that I have created ti instantiate the class.

              Thanks

          • February 2, 2010 at 3:29 PM #24184
            community-content

              Hi,

               

                If you did not declare your C# class and methods as static, then you will have to instantiate your class object in the BizTalk Expression shape, before invoking your method. Do something like this:

               

              varMyClass = new Class();

              varString = varMyClass.classmethod(str);

               

                 Daniel.

               

              • February 2, 2010 at 10:06 PM #24187
                community-content

                  Initilization of the .Net class must be done however ..also ensure the scope of the variable if you initilize it some where else…and use it might not work so make sure its a Orcehstartion level variable.

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