WPF (当 ItemsSource 正在使用时操作无效。改用 ItemsControl.ItemsSource 访问和修改)错误解决方案

  
    

   
      
   
     int
   
      selectIndex 
   
     =
   
      dgExport.SelectedIndex;
 ICollectionView view 
   
     =
   
      (ICollectionView)CollectionViewSource.GetDefaultView(dgExport.ItemsSource);
 List
   
     <
   
     Export
   
     >
   
      items 
   
     =
   
      
   
     new
   
      List
   
     <
   
     Export
   
     >
   
     ();
 items 
   
     =
   
      (List
   
     <
   
     Export
   
     >
   
     )view.SourceCollection;
 items.RemoveAt(selectIndex);
 dgExport.Items.Refresh();