I have some problems with the gridview control when using three-stated checkboxcolumns. To recreate the problem, create a new telerik winforms project and in the mainform add a gridview. Dock this gridview to the form.
Then, add the following columns and change the options as follows:
MinWidth: 80 (important for later)
The extra columns and minimal width are only there to make the sure you can scroll horizontally.
Change the codebehind for RadForm1 to the following:
To trigger the error, run the project, do not enlarge the window, and try to add a new line. Fill in a new id and a new name, keep Test1 to it's initial (third) state and uncheck Test2. Then, without pressing enter, scroll left and right by grabbing the horizontal scrollbar and moving quickly left and right. At that moment you should get the following error:
So, my question would be: what am I doing wrong and how can I avoid this?
Thanks in advance