dataprocessor not sending data

I have the following code for the grid:

I have a save link on the page with the following code:


Iam refresing the grid after save. I make changes to the grid and then click save it works for the first time. I make changes again and hit save it works again. After the second attempt the save stops functioning, i can see the data being sent back to the server using the dataprocessor.debug but the code in the update.aspx file is not being hit. What am i doing wrong here??

The code looks correct and must work without problems.
The one of possible reasons - server side caching, you are using GET to send data, which can be cached. Please try to use “POST” instead of GET , if it resolves problem - it is caching for sure.