WPF 在后台代码中选中DataGrid的多行

 1         /// <summary>
 2         /// 设置datagrid选中多行
 3         /// </summary>
 4         /// <param name="listIndex"></param>
 5         private void SetSelectMessageIndex(List<int> listIndex)
 6         {
 7             try
 8             {
 9                 foreach(var i in listIndex)
10                 {
11                     if (i >= datagrid.Items.Count)
12                         continue;
13 
14                     DataGridRow row = (DataGridRow)datagrid.ItemContainerGenerator.ContainerFromIndex(i);
15                     row.IsSelected = true;
16                 }
17             }
18             catch(Exception ex)
19             {
20                 Common.LogFile.LogErr(ex.ToString());
21             }
22         }

在界面后台代码中设置要选中的行的序号，若是MVVM绑定则需通过事件触发

1  　　　　private void Win_Loaded(object sender, RoutedEventArgs e)
2         {
3             var vm = this.DataContext as ViewModel;
4             if (vm != null)
5             {
6                 vm.SetSelectMessageIndexEvent += SetSelectMessageIndex;
7             }
8         }