复选框的验证 [英] validation for checkboxes

问题描述

<tr>
                        <td height="12" align="left" class="cont">
                            <asp:CheckBox ID="chkacsoutreach" runat="server" />Acs Outreach
                        </td>

                    </tr>
                    <tr>
                        <td height="12" align="left" class="cont">
                           <asp:CheckBox ID="chkaceportal" runat="server" /> Ace Portal
                        </td>

                    </tr>

我以以下方式选中了一些复选框.如果未选中至少1个复选框并且不应将值输入数据库，则应该收到一条消息.这是我需要的验证.我编写了如下的javascript代码:但是"controls []"的名称应该是一个包含所有复选框的组名.我不知道在此输入什么名称.任何人都可以帮帮我吗

I took some checkboxes in the following way.I should get a message if atleast 1 checkbox is not checked and the values should not be entered into the database.This is the validation i needed.I have written the javascript code as below:but instead of ''controls[]'' there should be a groupname which combines all the checkboxes.Iam not understanding what name to give here.Can any one please help me out

<script type="text/javascript" language="javascript">
                      function validate() {
                          var chks = document.getElementsByName('controls[]');
                          var hasChecked = false;
                          for (var i = 0; i < chks.length; i++) {

                              if (chks[i].checked) {

                                  hasChecked = true;

                                  break;

                              }

                          }

                          if (hasChecked == false) {

                              alert("Please select at least one.");

                              return false;

                          }

                          return true;

                      }

                          </script>

推荐答案

脚本稍有变化.

script change a little.

<script src="jquery-1.4.1.js" type="text/javascript" language="javascript"></script>

<script type="text/javascript" language="javascript">
                      function validate() {
                          var hasChecked = false;
                          var chkBox =

(':checkbox'); for(i = 0; i < chkBox.length ; i ++) { (chkBox [i] .checked) { 已检查 = 休息； } 如果 (！hasChecked) { 一个.); } re打开 true; } &l t;/script >

(':checkbox'); for (i = 0; i < chkBox.length; i++) { if (chkBox[i].checked) { hasChecked = true; break; } } if (!hasChecked) { alert("Please select at least one."); return false; } return true; } </script>

还要检查此链接
:选中的选择器 [

also check this link
:checked Selector[^]
[/Edit]

为什么不放入Validator控件并将所有复选框放入分配给该Validator的一组中?

现在，如果您想更改JS，请查看此线程 [ ^ ]和

Why not put a Validator control and put all the checkboxes into one group assigned to that validator?

For now, if you want changes in JS, then have a look at this thread[^] and this [^]thread.

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