Hi,

I have attached a simple project that (I believe) shows a breaking change from 8.2 to 9.1.  I have added a grid with a couple of bound columns and one unbound column, a checkbox (Boolean).  If you build in using the 8.2 infragistics references, turn on exception handling (break at exceptions), and run, you will see..... NO PROBLEM!  You can go from one checkbox to the other to your heart's content.

However, if you build with 9.1 you will get the first chance exception "Invalid cast from system.boolean to system.windows.forms.checkstate", when you start checking the checkboxes.  I believe it occurs as soon as you leave the first checkbox.

What happened?

My concern is twofold...

1) I'm wondering if I coded things up in the best way possible.  Perhaps the change to 9.1 is exposing something I did wrong (sloppy code) and got away with in 8.2?

2) Even though it's a first chance exception and you don't see it unless you have exception handling turned on, it's annoying in our large project (which is not included).  When one is trying to find an actual problem, one often turns on "break at exceptions". It's a pain to see "false alarms".  Our main project has few if any first chance exceptions occurring. I hate to be the one to introduce one.

Can you let me know what's going on?

And of course, tell me when I can expect an offer to join your QA department, or failing that, get a personal copy of the Infragistics suite so I can provide you with more valuable feedback :)

Thanks, and keep up the good work.  In general, I find you controls easy to work with and much better than some other third party gui controls I could mention!

-Andrew