如何在wpf的excel的上下文菜单中打开window.xaml文件

我想在Excel的上下文菜单（右键单击）上打开一个新窗口。

为此，我打开了一个Excel文件，并在右键单击添加了Go to Link菜单，但是当我点击这个菜单时，它并没有打开一个窗口，并给出错误消息"STA thread attribute must be defined" 。

下面是代码。

 Excel.Application _Excel = new Excel.Application(); Excel.Worksheet WS = new Excel.Worksheet(); Excel.Workbook WB; Object defaultArg = Type.Missing; try { _Excel.Visible = true; CommandBar cellbar = _Excel.CommandBars["Cell"]; CommandBarButton button =(CommandBarButton)cellbar.FindControl(MsoControlType.msoControlButton, 0, "MYRIGHTCLICKMENU", Missing.Value, Missing.Value); if (button == null) { // add the button button = (CommandBarButton)cellbar.Controls.Add(MsoControlType.msoControlButton, Missing.Value, Missing.Value, cellbar.Controls.Count, true); button.Caption = "Go to Link"; button.BeginGroup = true; button.Tag = "MYRIGHTCLICKMENU"; button.Click += new _CommandBarButtonEvents_ClickEventHandler(MyButton_Click); } WB = _Excel.Workbooks.Open(pathToFile, defaultArg, defaultArg, defaultArg, defaultArg, defaultArg, defaultArg, defaultArg, defaultArg, defaultArg, defaultArg, defaultArg, defaultArg, defaultArg, defaultArg); System.Runtime.InteropServices.Marshal.FinalReleaseComObject(WB); System.Runtime.InteropServices.Marshal.FinalReleaseComObject(_Excel); } catch (Exception ex) { // WB.Close(false, Type.Missing, Type.Missing); throw; } private void MyButton_Click(CommandBarButton cmdBarbutton, ref bool cancel) { Window m = new Window(); m.showDialog(); } 

任何build议将是很大的帮助。