InvalidOperationException but why?

[error1408]

Hi guys, i have a form, which, on mouseclick, opens another form. Half of the time it's all well. But sometimes i get an InvalidOperationException with the message that this can't be done while resizing an automatically filled column. Now, on the second form there is a gridview, which is filled at the LOAD event. Creating Form 2: FrmPaths f = new FrmPaths(); f.Show(this); Load event: foreach (string s in PathManagment.Directories) { dataSet1.Tables["paths"].Rows.Add(new object[] { (s) }); } Could anybody please help me?

[Gamzun]

sounds strange ....... do you get this exception when you are debugging? if so, { then there's no problem :D } else { i don't know :D }

[error1408]

yes i got this exception when i was debugging. i even know where it came from. I had ColumnsHeaderHeigthSizeMode on Auto by mistake. I turned it off and now the problem is gone. I'd like to understand what the problem is, anyway. Nobody knows? Btw. why isn't there a problem if i was debugging? Thank you

[Gamzun]

i don't know whats wrong with VS, i have noticed that when im in debugging mode sometimes i get exception but when im running the project normally that when not in debugging mode, it runs fine. and mostly the exeception is null reference exception.

[error1408]

Ok thank you. That is good to know. I was really desperated.

[Gamzun]

and yes i forgot to mention one thing, this type of error usually occurs when you are going to another class/form, like the way you were doing myform.show() and in your myform load event you had something n there you get some error :)