Silverlight datagrid 全选的另一种实现方法

1.在DataGrid列头添加全选checkBox

<Style x:Key="chkAll" <a href="/tag/targettype/" target="_blank" class="keywords">targettype</a>="sdk:DataGridColumnHeader"> <Setter Property="ContentTemplate"> <Setter.Value> <DataTemplate> <Check<a href="/tag/Box/" target="_blank" class="keywords">Box</a> Click="Check<a href="/tag/Box/" target="_blank" class="keywords">Box</a>_Click" Loaded="chkAll_Loaded" x:Name="chkAll"/> </DataTemplate> </Setter.Value> </Setter> </Style>  

2.添加Loaded事件

  在添加前声明一个全局变量：

        CheckBox IsCheckAll = null；

        在Loaded事件中初始化：

	 private void chkAll_Loaded(object sender,RoutedEventArgs e)
        {
            Check<a href="/tag/Box/" target="_blank" class="keywords">Box</a> chk = sender as Check<a href="/tag/Box/" target="_blank" class="keywords">Box</a>;
            if (IsCheckAll == null) IsCheckAll = chk;
        }

3.添加Click事件

 private void chkAll_Click(object sender,RoutedEventArgs e)

  {
            Check<a href="/tag/Box/" target="_blank" class="keywords">Box</a> chkall = sender as Check<a href="/tag/Box/" target="_blank" class="keywords">Box</a>;
            foreach (var item in list)
            {
                item.IsCheck = (sender as Check<a href="/tag/Box/" target="_blank" class="keywords">Box</a>).IsChecked.Value;
            }
  }

   4.添加删除方法：
 private void button1_Click(object sender,RoutedEventArgs e)
        {
            var chk = list.Where(i => i.IsCheck == true).ToList();
            foreach (var item in chk)
            {
                list.Remove(item);
            }
             if (list.Count == 0 && IsCheckAll != null)
            {
                IsCheckAll.IsChecked = false;
            }
        }
5.添加每行的checkBox点击事件：
 private void Check<a href="/tag/Box/" target="_blank" class="keywords">Box</a>_Click_1(object sender,RoutedEventArgs e)
        {
            if (list.Where(i => i.IsCheck == true).Count() == list.Count)
            {
                IsCheckAll.IsChecked = true;
            }
            else
            {
                IsCheckAll.IsChecked = false;
            }
        }