完美的全选代码

 if (this.CheckBox1.Checked == true)
        {
            for (int i = 0; i < DataList1.Items.Count; i++)
            {
                CheckBox cbx = (CheckBox)DataList1.Items[i].FindControl("CheckBox2");
                cbx.Checked = true;
            }
        }
        else
        {
            for (int i = 0; i < DataList1.Items.Count; i++)
            {
                CheckBox cbx = (CheckBox)DataList1.Items[i].FindControl("CheckBox2");
                cbx.Checked = false;
            }
        }

如果数据绑定控件不同请修改datalist1