I have a project due to tomorrow. I'm following the tutorial about custom desktop app with netbeans. I couldnt find any answer anywhere. I think you are the guys that i should ask that.
I created a new detail table that is binded to master table also. its content changes according to selected row in the master table. I added a button to add a new entry to this new detail table. I followed the propertychange support steps in the tutorial same as the original detail table. But it doesnt work.
The exception is here:
The reason of the error is null value returned by getTrialConfirmed() method.
The action performed when button pressed is that:
As you can see the code is same as the one in the tutorial.
The frame opens and I add the data but when refreshed it is gone.