Your question is related moreto Windows Forms than C#. I would post Forms questions on the Forms forums. But as to your question....there are various types of text box objects, some of which are custom built. For a beginner I would suggest using the Forms designer and play with the various types of text boxes, and their properties. There is a scrollbar property for a common text box. Just remember, that you may not see the scroll bars until you fill it with enough text.
Rudedog
"Stuck in a procedural worldsince 1971."