WPF 后台设置DataGrid选中多行

 1         private void SetSelectIndex(List<int> listIndex)
 2         {
 3             try
 4             {
 5                 foreach (var i in listIndex)
 6                 {
 7                     if (i >= datagridSig.Items.Count)
 8                         continue;
 9 
10                     DataGridRow row = (DataGridRow)datagrid.ItemContainerGenerator.ContainerFromIndex(i);
11                     row.IsSelected = true;
12                 }
13             }
14             catch (Exception ex)
15             {
16                 
17             }
18         }