I'm working with LINQ to Entities and I created a window like similar to the example https://examples1.ext.net/#/GridPane...etails_Window/

<DIV id=result_box dir=ltr style="TEXT-ALIGN: left">But when I click the Save button, I haven't achived managed to obtain data from the fields of the screen to the method(save) in part .cs , that is, comes with NULL values for the method and save null in database.
What can I do to save properly in database?

Thanks for attention!