js html复选框的全选和非全选

本文介绍了一种使用JavaScript实现复选框全选功能的方法。通过编写特定的JS函数,可以实现在点击全选复选框时,页面上所有相关联的子复选框都会被同时选中或取消选中。此外,当子复选框的状态发生变化时,全选复选框的状态也会相应更新。

JS代码:

//设置复选框的全选的单击事件
function selectChk(ParentChkID, ChildChkName) {
//全选和取消全选操作
    $("#" + ParentChkID + "").click(function() {
        if ($(this).attr("checked") == true) { // 全选
            $("input[name='" + ChildChkName + "']").each(function() {
                $(this).attr("checked", true);
            });
        } else { // 取消全选
            $("input[name='" + ChildChkName + "']").each(function() {
                $(this).attr("checked", false);
            });
        }
    });
    //子复选框影响 全选复选框的操作
    $("input[name='" + ChildChkName + "']").each(function() {
        $(this).click(function() {
            //取消全选选择框的选择
            if ($(this).attr("checked") == false) {
                $("#" + ParentChkID + "").attr("checked", false);
            }
            //选择全选选择框
            var flag = 1;
            $("input[name='" + ChildChkName + "']").each(function() {
                if ($(this).attr("checked") == false) {
                    flag = 0;
                }
            });
            if (flag == 1) {
                $("#" + ParentChkID + "").attr("checked", true);
            }
        });
    });
}

 

 

html文件代码:


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>复选框全选和非全选</title>
</head>
<body>
        <table>
            <tr class="list-title">
                <td style="width: 55px;">
                    <input id="bBrowseAll" type="checkbox" class="chkbPur" name="bBrowseAll" />可见
                </td>
            </tr>
           
            <tr class="content">
             
                <td class="bPurview">
                     <input id="Checkbox13" type="checkbox" class="chkbPur" name="bBrowse" value="1001" />
                </td>
            </tr>
           
            <tr class="content">
              
                <td class="bPurview">
                     <input id="Checkbox13" type="checkbox" class="chkbPur" name="bBrowse" value="1002" />
                </td>
            </tr>
           
            <tr class="content">
              
                <td class="bPurview">
                     <input id="Checkbox13" type="checkbox" class="chkbPur" name="bBrowse" value="1003" />
                </td>
            </tr>
           
            <tr class="content">
              
                <td class="bPurview">
                     <input id="Checkbox13" type="checkbox" class="chkbPur" name="bBrowse" value="1004" />
                </td>
            </tr>
           
            <tr class="content">
              
                <td class="bPurview">
                     <input id="Checkbox13" type="checkbox" class="chkbPur" name="bBrowse" value="1005" />
                </td>
            </tr>
           
            <tr class="content">
            
                <td class="bPurview">
                     <input id="Checkbox13" type="checkbox" class="chkbPur" name="bBrowse" value="1006" />
                </td>
            </tr>
           
            <tr class="content">
              
                <td class="bPurview">
                     <input id="Checkbox13" type="checkbox" class="chkbPur" name="bBrowse" value="1007" />
                </td>
            </tr>
           
            <tr class="content">
              
                <td class="bPurview">
                     <input id="Checkbox13" type="checkbox" class="chkbPur" name="bBrowse" value="1008" />
                </td>
            </tr>
           
            <tr class="content">
             
                <td class="bPurview">
                     <input id="Checkbox13" type="checkbox" class="chkbPur" name="bBrowse" value="1009" />
                </td>
            </tr>
           
            <tr class="content">
              
                <td class="bPurview">
                     <input id="Checkbox13" type="checkbox" class="chkbPur" name="bBrowse" value="1010" />
                </td>
            </tr>
           
            <tr class="content">
               
                <td class="bPurview">
                     <input id="Checkbox13" type="checkbox" class="chkbPur" name="bBrowse" value="1011" />
                </td>
            </tr>
           
            <tr class="content">
                <td>
             
                <td class="bPurview">
                     <input id="Checkbox13" type="checkbox" class="chkbPur" name="bBrowse" value="1012" />
                </td>
            </tr>
           
        </table>
   
     <script type="text/javascript" language="javascript">
   
             //初始化页面按钮、复选框的单击操作
            
    selectChk("bBrowseAll", "bBrowse");
    isSelectChk("bBrowseAll", "bBrowse");

    </script>
</body>
</html>

 

 

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