private async void Grid_Drop(object sender, DragEventArgs e)
        {
            //如果有文字,那么就是把他放在要拖放的TextBlock
            bool hasText = e.DataView.Contains(StandardDataFormats.Text);

            //显示复制还是没有
            //拖动显示可以去我之前写的 http://blog.csdn.net/lindexi_gd/article/details/49757187?locationNum=2&fps=1
            e.AcceptedOperation = hasText ? DataPackageOperation.Copy : DataPackageOperation.None;
            if (hasText)
            {
                var text = await e.DataView.GetTextAsync();

                if (AppViewModel.IsInCompactOverlayMode)
                {
                    CompactOverlay_HomePage.Current.AutoSuggestBox.Text = text;
                    CompactOverlay_HomePageViewModel.Current.CompactOverlay_QueryWord(text);
                }
                else
                {
                    HomePage.Current.AutoSuggestBox.Text = text;
                    HomePageViewModel.Current.QueryWord(text);
                }
            }
            DragGridClose.Begin();
        }
 private void Grid_DragLeave(object sender, DragEventArgs e)
 {
     DragGridClose.Begin();
 }