RichTextBox .SelectionFont problem or bug

[snProgrammer]

Hello,
I have the strangest problem working with a RichTextBox. I want the user to be able to select a chunk of text in a RTF box and make the text bold by clicking a button. This works fine the first time, but the second time not at all. In fact, when I did a step by step through the code, I found that the SelectionStart and SelectionLength values were both 0 for the second try. Here's the relevant code...

private void btn_Click(object sender, System.EventArgs e)
{
rtbInstrument.SelectionFont = new Font("Microsoft Sans Serif", (float)8.25, FontStyle.Bold);
}

Any ideas? Thanks in advance.

Sue

 

[Kalisto]

Does the selection remain after the first time?

(i.e. if you put in a dummy line after the trbInstrument. line, what is the selection start and length at that point, is the application of the new font resetting it?

K

 

[snProgrammer]

Hi,
The selection is gone as soon as I set the font. Small detail...this is only a problem if the RichTextBox is databound.

Thanks!
Sue

 

[Kalisto]

The only other thing I can think of then is to store the start and length values, set the font, then re-set the start and length values?

HTH

K