[Mono-winforms-list] GetPositionFromCharIndex

monkeyx tim at monkeyx.net
Thu May 10 15:46:34 EDT 2007

I am having some problems getting GetPositionFromCharIndex to work on Mono
1.2.3 and libgdiplus 1.2.3
Tested issue on Ubuntu 7.04 and Suse 10.2 using even built sources on Centos
5 all give same error.

I have shown code and crash error below, has anyone else seen this error or
advise me on how I can help fix it!

          if (e.KeyCode == Keys.OemPeriod && e.Shift == true)


               index = richTextBox1.SelectionStart;

// This line appears to be causing crash

               pt = richTextBox1.GetPositionFromCharIndex(index);

               pt.X += richTextBox1.Location.X;

               pt.Y += richTextBox1.Location.Y;

               lstboxEdit.Location = pt;

               lstboxEdit.Visible = true;


This is summary of crash error
** (lpOED.exe:6904): WARNING **: Missing method
System.Windows.Forms.TextBoxBase::GetPositionFromCharIndex(int) in assembly
referenced in assembly /media/MightyDrive/lpOED.exe
System.MissingMethodException: Method not found:
  at <0x00000> <unknown method>
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