Hi Maik, many thanks for your reply.
I want to check this:
the user get into the Good Receipt PO and insert his data. these article is with batch and open the 'Batch - Setup' window. Here the user press the button 'automatic creation' and in this window the user clic ok for batch generation. Here the Created batch matrix is filled automatically.
I want to capture when the matrix is filled for set is read only.
this after the automatic creation. so the user can modify the generated batchs.