thank you Jyoshna but I need to know if a form field has javascript programmatically I need to insert javascript code into form fields but this operation will destroy any code already present: for this reason I need to check if a form field has javascript code BEFORE using the "SetAction" method... sorry for bad english

Hello from Italy! is possible to know if in a field of a PDF form is there some javascript code ready to work? I'm writing a tool that use SetAction method to insert javascript code in some fields, but this will be destructive for the javascript code evenctually present how can I check if the field I'm modifyng has javascript? thnk you very much and sorry for bad english