在双击事件中你需要检查事件的原始来源是否为Row，如果没有，那么你可以避免它......

in the Double click event u need to check whehter the Original Source of the event is Row or not if not then u can avoid it...

 if (e.OriginalSource.GetType() == typeof(DataGridRow))
      {
        //Implement ur logic      
      }

希望它帮助你

hope it helps u