如何让用户在c# vsto excel加载项中选择单元格(范围输入)？

using Excel = Microsoft.Office.Interop.Excel;

namespace YourNamespace
{
    public partial class ThisAddIn
    {
        private void ThisAddIn_Startup(object sender, System.EventArgs e)
        {
            // 在加载项启动时执行的代码
        }

        private void ThisAddIn_Shutdown(object sender, System.EventArgs e)
        {
            // 在加载项关闭时执行的代码
        }

        protected override Microsoft.Office.Core.IRibbonExtensibility CreateRibbonExtensibilityObject()
        {
            return new Ribbon();
        }

        public Excel.Range GetUserSelectedRange()
        {
            Excel.Range selectedRange = Globals.ThisAddIn.Application.InputBox(
                "请选择单元格范围", Type.Missing, Type.Missing, Type.Missing, Type.Missing,
                Type.Missing, Type.Missing, 8);

            // 可以在此处对用户选择的范围进行验证

            return selectedRange;
        }
    }
}