今天在Repeater控件中碰到一个全选的操作，于是上网查了一下，找到一个觉得比较好，便记录下来，

      界面代码简化之后(全选操作)：

  <script type="text/java script">
　　　　  function SelectAll(parentChk, ChildId, bigControlID) {
              var oElements = document.getElementsByTagName("INPUT");
              var bIsChecked = parentChk.checked;

               for (i = 0; i < oElements.length; i++) {
                     if (IsCheckBox(oElements[i]) && IsMatch(oElements[i].id, ChildId, bigControlID)) {
                        oElements[i].checked = bIsChecked;
                      }
                   }
                }

         function IsMatch(id, ChildId, controlID) {
             var sPattern = '^' + controlID + '_+.*' + ChildId + '$';
             var oRegExp = new RegExp(sPattern);
             if (oRegExp.exec(id))
                return true;
             else
                return false;
             }

        function IsCheckBox(chk) {
               if (chk.type == 'checkbox') return true;
               else return false;
            }
   </script>
  
  <asp:Repeater ID="Repeater_xx" runat="server">
               <HeaderTemplate>
                         <table>
                               <tr>
                                     <th>选项</th>
                                     <th>数据</th>
                               </tr>
               </HeaderTemplate>
               <ItemTemplate>
                               <tr>
                                    <td>
                                         <asp:CheckBox ID="CheckBox_ID" runat="server" Checked="false" />
                                    </td>
                                    <td>
                                         <asp:Label runat="server" ID="Label_ID" Text='<%#eva l("Label_ID")%>'></asp:Label>
                                    </td>
                                <tr>
              </ItemTemplate>
              <FooterTemplate>
                        </table>
              </FooterTemplate>
    </asp:Repeater>    
       
    <asp:CheckBox runat="server" ID="CheckBoxCz" Text="全选/反选" onclick='SelectAll(this,"CheckBox_ID","Repeater_xx")'/>

      <input class="anniu" id="input_gs" type="submit" runat="server" onserverclick="Gssubmit_Click" value="操作" />

     后台根据选中项获取当前行的数据然后进行操作   

 public void Gssubmit_Click(object sender, EventArgs e)
  {
        for (int i = 0; i < Repeater_xx.Items.Count; i++)
          {
                 //获取复选框
                 CheckBox cb = (CheckBox)rpt_Paper.Items[i].FindControl("CheckBoxCz");
                 //判断是否被选中
                 if(cb != null && cb.Checked == true)
                 {
                   Label id = (Label)rpt_Paper.Items[i].FindControl("Lable_ID");
                   //获取该行ID
                   int ID= Convert.ToInt32(Id.Text);
                  //相应操作
                    ......
                 }
          }  
  }