Cursor Positioning in a Text Control.

[Rob McVicar]

I have a textbox control in a Form. I'm using it as a history page of what is typed in an IM type app. How can I keep the focus (view) at the end of the text control instead of it automatically always going to the beginning?

I want to do this to be able to view the last items entered first.

Any help would be greatly appreciated.

Thanks.

[Shuja Ali]

textBox1.SelectionStart = textBox1.Text.Length; I guess you are concatenating the strings everytime a new IM is recieved or sent. The append process to the textbox can be made more proper in order to reduce time. I would do the append process like this //set the cursor at the end of the text
textBox1.SelectionStart = textBox1.Text.Length;
//add the text here
textBox1.SelectedText = "text that needs to appended to the textbox";

[Rob McVicar]

Thanks for the help. I'll give that a try. Sorry I did not get back sooner, e-mail probs at work!

[Rob McVicar]

Does this method also work for a richtextbox?

Thanks.

[Shuja Ali]

Does this method also work for a richtextbox?

Thanks.
It should, you should try it out yourself.

[Rob McVicar]

Thanks it does not seem to be working, but maybe I messed something up.

Thanks again!

[Shuja Ali]

Can you post the code? It works fine with me.

[Rob McVicar]

Here it is...

displayTextBox.SelectionColor = System.Drawing.Color.MediumAquamarine;
displayTextBox.SelectionStart = displayTextBox.Text.Length;
displayTextBox.SelectedText = "\r\nSent: " + packet;

Thanks!

[Shuja Ali]

Works perfectly on my system. :thumb: Does it show any error?

And you should change of the selection only after setting the selectionstart.

[Rob McVicar]

No error here. Just does not work right. It is not showing the bottom of the richtextbox like it was with just the straight textbox. I changed to the richtextbox to be able to easily change the font color, which I will put after the selection start.

[Rob McVicar]

FYI. The code works file with the regular text box, however, it does not work with a richtextbox.

[Shuja Ali]

It exactly does what it is supposed to do. Append text to the richtextbox and position the cursor at the end of the richTextBox.