Am trying to search a specific Text in the Document, and replace it with Table.
this is what am doing:
      private void Replace()
        {
              this.radRichTextBox1.Document.Selection.Clear();
              DocumentTextSearch ser = new DocumentTextSearch(this.radRichTextBox1.Document);
              IList<DocumentPosition> startPositions = new List<DocumentPosition>();
              IList<DocumentPosition> endPositions = new List<DocumentPosition>();
   
              foreach (var textRange in ser.FindAll("<Threat"))
                startPositions.Add(textRange.StartPosition);
              foreach (var textRange in ser.FindAll(KEYEND))
                   endPositions.Add(textRange.EndPosition);
              string xml = string.Empty;
              for (int i = 0; i < startPositions.Count; i++)
             {
                this.radRichTextBox1.Document.Selection.Clear();
                this.radRichTextBox1.Document.Selection.AddSelectionStart(startPositions[i]);
                this.radRichTextBox1.Document.Selection.AddSelectionEnd(endPositions[i]);
                 
                xml = this.radRichTextBox1.Document.Selection.GetSelectedText();
                Table tbl = GenerateTable(xml);
                this.radRichTextBox1.InsertTable(tbl);
            }



but it doesn't work. when i try to replace the selection with any string, it works fine. what's wrong??? please help

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http://reflector.webtropy.com/default.aspx/Dotnetfx_Win7_3@5@1/Dotnetfx_Win7_3@5@1/3@5@1/DEVDIV/depot/DevDiv/releases/whidbey/NetFXspW7/ndp/fx/src/WinForms/Managed/System/WinForms/MonthCalendar@cs/1/MonthCalendar@cs

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