.net代码CheckBoxList中清空

Question

详细点

Answer 1

   问题补充：
CheckBoxList 中如何清空以前选择！！

Answer 2

   function UnCheckAll() {
            var CheckBoxList = document.getElementById('cbx');
            //设置RepeatLayout="Table",默认就是table 
            if (CheckBoxList.tagName == "TABLE") {
                for (i = 0; i < CheckBoxList.rows.length; i++) {
                    for (j = 0; j < CheckBoxList.rows[i].cells.length; j++) {
                        if (CheckBoxList.rows[i].cells[j].childNodes[0]) {
                            CheckBoxList.rows[i].cells[j].childNodes[0].checked = false;
                        }
                    }                }
            }
        }
 &nbsp;&nbsp;<input type="button" class="buttons" value="全不选" onclick="UnCheckAll()" /><br /><br />
               <asp:CheckBoxList ID="cbx" runat="server" RepeatColumns="4" RepeatDirection="Horizontal" RepeatLayout="Table" CssClass="check" CellSpacing="0" CellPadding="0">
               </asp:CheckBoxList>

Answer 3

CheckBoxList1.ClearSelection();
直接这样就全部清空