Moving the caret in a multiline RichTextBox

[Guest]

Hello,

I'm trying to implement a backspace on the "bottom" line of a multiline text
box. I want it to be ignored if it's already at the beginning of that line.
I think I've got the part about removing each character from the string that
represents that line, but how do I back up the caret? I understand .NET 3.0
has implemented a method for doing backspaces, but I'd like to know how to do
it manually since not many people around here have installed 3.0.

Thanks,
Ray

 

[Gregg Walker]

Ray - Try using the Select method of the textbox with the new starting
position and a length of 0. That should do the trick.

 

[Gregg Walker]

Sorry I left this out. Additionally you will probably want to call
ScrollToCaret after calling Select. This will bring the caret into view if
your scroll bars are in use.

Example...

int newPos;

.... backspace logic

newPos = p;

text1.Select(p, 0);
text1.ScrollToCaret();

Hope that helps.