How to set scroll position in a textbox

[mcbigj]

Hello,

I'm trying to set the scroll postion in a rich text box. Unfortunately the richtextbox control does not include the autoscroll method where I could set the x and y points and have it scroll to that position. I assume I need to inherit or implement another control or something like that. I'm just not sure where to start. Could anyone please point me in the right direction?

Thanks,

John

 

[JohnYingling]

' See TextBoxBase.SelectionStart
Note You can programmatically move the caret within the text box by setting the SelectionStart to the position within the text box where you want the caret to move to and set the SelectionLength property to a value of zero (0). The text box must have focus in order for the caret to be moved.

rtf.Focus() ' No scroll if no focus
rft.SelectionLength = 0
' Get to end first so actual positon will be
' visible at the top rather than top
rtf.SelectionStart = 99999999
rtf.SelectionStart = whereever

http://www.VBCompare.com

Compare Code

 

[JohnYingling]

or maybe
rtf.Select(99999999, 0)
rtf.Select(whereever, 0)

http://www.VBCompare.com

Compare Code

 

[mcbigj]

I'll look at that thanks. The problem is though, I should have mentioned, is that I actually want the selection to be in the middle of the textbox. What happens now, is when I do textbox1.ScrollToCaret for instance, if the caret is below the visible textbox area, it scrolls to the point but that point displays at the bottom of the textbox area when I would prefer it to be viewable around the middle of the area. Hope that makes sense. any ideas?

 

[ThatRickGuy]

take the number of visible lines divided by 2 and move the cursor down that many lines, then ScrollToCaret, then move the cursor back up.

-Rick

----------------------

http://www.ringdev.com