void MembersList_MouseDoubleClick(object sender, MouseEventArgs e) { if (membersList.SelectedItem != null) { var info = (membersList.SelectedItem as MemberInfo); try { membersList.SelectedItem = null; if (info.Line != -1) { Npp.GrabFocus(); int currentLineNum = Npp.GetCaretLineNumber(); int prevLineEnd = Npp.GetLineStart(currentLineNum) - Environment.NewLine.Length; int topScrollOffset = currentLineNum - Npp.GetFirstVisibleLine(); Win32.SendMessage(Npp.CurrentScintilla, SciMsg.SCI_GOTOLINE, info.Line, 0); Npp.SetFirstVisibleLine(info.Line - topScrollOffset); } } catch { } //it is expected to fail if the line does not contain the file content position spec. This is also the reason for not validating any "IndexOf" results. } }