拖动多个项目时，此视图不允许使用DataGrid'EditItem' [英] DataGrid 'EditItem' is not allowed for this view when dragging multiple items

问题描述

我有一个datagrid获取这样的数据：

  public struct MyData 
 {
 public字符串名称{set;得到; } 
 public string artist {set;得到; } 
 public string location {set;得到; } 
} 
 
 DataGridTextColumn col1 = new DataGridTextColumn（）; 
 col4.Binding = new Binding（name）; 
 dataGrid1.Columns.Add（col1）; 
 dataGrid1.Items.Add（（new MyData（）{name =Song1，artist =MyName，location =loc}））; 
 dataGrid1.Items.Add（（new MyData（）{name =Song2，artist =MyName，location =loc2}））; 
  

问题是 - 每当用户尝试编辑单元格或拖动多个单元格时 - 应用程序会抛出一个例外：

System.InvalidOperationException未处理

消息：此视图不允许EditItem p>

为什么会这样？是因为输入数据的方式吗？

任何想法？

谢谢！

解决方案

而不是使用 struct 而是使用类。

UPDATED ANSWER：尝试将MyData实例添加到列表，然后将该列表分配给DataGrid.ItemsSource

I have a datagrid which gets data like this:

    public struct MyData
    {
        public string name { set; get; }
        public string artist { set; get; }
        public string location { set; get; }
    }

    DataGridTextColumn col1 = new DataGridTextColumn();
    col4.Binding = new Binding("name");
    dataGrid1.Columns.Add(col1);
    dataGrid1.Items.Add((new MyData() { name = "Song1", artist = "MyName", location =     "loc"}));
    dataGrid1.Items.Add((new MyData() { name = "Song2", artist = "MyName", location =     "loc2"}));

The problem is- whenever a user tries to edit a cell or drags multiple cells- the app throws an exception:

System.InvalidOperationException was unhandled
Message: 'EditItem' is not allowed for this view.

Why is this? Is it because of the way the data is entered?
Any ideas?
Thanks!

解决方案

Instead of using a struct use a class instead.

UPDATED ANSWER: Try adding your MyData instances to a List then assigning that list to the DataGrid.ItemsSource

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