Hello Chris Ward,
is just a wrapper of the standard TextBox
control available in WinForms and this is a known issue with it. The control uses GDI to paint its text and GDI DrawString
method is not able to draw such long strings. We created the RadTextBoxControl
which has our own implementation of a text box, however it has the same issue. I logged it in our issue tracking system and we will try to address it in one of our future versions. I updated also your Telerik points for bringing our attention to the issue. Here is a link to the issue where you can add your vote for it: http://www.telerik.com/support/pits.aspx#/public/winforms/12723
If you have any other questions, do not hesitate to ask.
the Telerik team