Electronic Signatures

Hi,

  I'm testing out some electronic signatures.  I've got the signature system to prompt correctly when a field in a form is updated but when I update() or insert() a field directly into a table via x++ nothing seems to happen.  From the formdatasource the stack indicated that the singature code runs form the super() call in the validatewrite on the datasource.

 Does anyone know what methods or actions need to be taken via x++ to trigger the electronic signature?

Thanks