Measure String inside RichTextBox Control

Question

Can somebody please explain how I would go about measuring the string inside a richtextbox control so that the I can automatically resize the richtextbox control according t

Answer 1

You can measure a string by calling TextRenderer.MeasureText.

However, if the text contains multiple fonts, this will not work.

EDIT: You're looking for the GetPositionFromCharIndex method.
Note that if there are multiple lines, you should take the max of the X coordinates of the last character on each line.