public void GotoLine() { FastColoredTextBoxNS.GoToForm _gotoForm = new FastColoredTextBoxNS.GoToForm(); _gotoForm.SelectedLineNumber = CurrentLineNumber(); _gotoForm.TotalLineCount = rtf.Lines.Length; DialogResult _result = _gotoForm.ShowDialog(); if (_result == DialogResult.OK) { GotoLine(_gotoForm.SelectedLineNumber); } }