does this need to be custom control?

Hello Everyone, A While back I was developing a grouping control in C# meant to function alot like the one located here. Everything was working great, and within 24 hours I had a working "Group" control. The problems lied in the functionality of the TEXT control being used (The text control nested inside of each textual window). I was using the standard text control at the time, which lacked some necessary functionality. For starters, I needed to be able to spread apart the lines (control the leading) enough that I could stick my underlines in there (GDI+), the other problem was, I needed to be able count the number of lines (every time there was a new line I needed to resize the box). I found this next to impossable to do with the word wrap, which i needed so despritly. I actualy have been developing a text control with what I consider the necessary features, but it functions horriably, and I still need to tweak the GROUPING control a bit, so this is way out of the way. Does anyone know any SIMPLER method to achieve this functionality (IE: use of either textedit or richedit as a base), or any freeware/public domain components availiable that I could use as a base for such a text control? Thanks in advance Richard