How does one create a calculated field in a View (AX 2009)

Hi,

I am trying to create a calculated field / formula for a view in AX 2009. Can you tell me if there is a way I can write a method, and have the view call this method?

My view is in AOT -> Data Dictionary -> View - > My_View_Name

I want to see if my method in the view can return a Data Type (String / Number), and use this data type in the display of the view. Is this possible? If yes, can you provide me the steps.

Thanks,

Kumar