jQuery操作checkbox详解

来源：互联网发布：vb if else语句编辑：程序博客网时间：2024/05/16 02:40

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New document．nbsp;</TITLE>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<SCRIPT LANGUAGE="javascript" src="http://www.cnjquery.com/demo/jquery.js"></script>
<SCRIPT LANGUAGE="javascript">
<!--
$("document．quot;).ready(function(){
$("#btn1").click(function(){
$("[name='checkbox']").attr("checked",'true');//全选
})
$("#btn2").click(function(){
$("[name='checkbox']").removeAttr("checked");//取消全选
})
$("#btn3").click(function(){
$("[name='checkbox']:even").attr("checked",'true');//选中所有奇数
})
$("#btn4").click(function(){
$("[name='checkbox']").each(function(){
if($(this).attr("checked"))
{
$(this).removeAttr("checked");
}
else
{
$(this).attr("checked",'true');
}
})
})
$("#btn5").click(function(){
var str="";
$("[name='checkbox'][checked]").each(function(){
str+=$(this).val()+""r"n";
//alert($(this).val());
})
alert(str);
})
})
//-->
</SCRIPT>
</HEAD>
<BODY>
<form name="form1" method="post" action="">
<input type="button" id="btn1" value="全选">
<input type="button" id="btn2" value="取消全选">
<input type="button" id="btn3" value="选中所有奇数">
<input type="button" id="btn4" value="反选">
<input type="button" id="btn5" value="获得选中的所有值">
<br>
<input type="checkbox" name="checkbox" value="checkbox1">
checkbox1
<input type="checkbox" name="checkbox" value="checkbox2">
checkbox2
<input type="checkbox" name="checkbox" value="checkbox3">
checkbox3
<input type="checkbox" name="checkbox" value="checkbox4">
checkbox4
<input type="checkbox" name="checkbox" value="checkbox5">
checkbox5
<input type="checkbox" name="checkbox" value="checkbox6">
checkbox6
<input type="checkbox" name="checkbox" value="checkbox7">
checkbox7
<input type="checkbox" name="checkbox" value="checkbox8">
checkbox8
</form>

----------------------------------------------------------------------------------------------------

<!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 runat="server">

    <title></title>

    <script src="Scripts/jquery-1.7.min.js" type="text/javascript"></script>

    <script type="text/javascript">

        $(function () {

            // 全选

            $("#btnCheckAll").bind("click", function () {

                $("[name = chkItem]:checkbox").attr("checked", true);

});

            // 全不选

            $("#btnCheckNone").bind("click", function () {

                $("[name = chkItem]:checkbox").attr("checked", false);

});

            // 反选

            $("#btnCheckReverse").bind("click", function () {

                $("[name = chkItem]:checkbox").each(function () {

                    $(this).attr("checked", !$(this).attr("checked"));

});

});

            // 全不选

            $("#btnSubmit").bind("click", function () {

                var result = new Array();

                $("[name = chkItem]:checkbox").each(function () {

                    if ($(this).is(":checked")) {

                        result.push($(this).attr("value"));

}

});

                alert(result.join(","));

});

});

    </script>

</head>

<body>

    <div>

        <input name="chkItem" type="checkbox" value="今日话题" />今日话题

        <input name="chkItem" type="checkbox" value="视觉焦点" />视觉焦点

        <input name="chkItem" type="checkbox" value="财经" />财经

        <input name="chkItem" type="checkbox" value="汽车" />汽车

        <input name="chkItem" type="checkbox" value="科技" />科技

        <input name="chkItem" type="checkbox" value="房产" />房产

        <input name="chkItem" type="checkbox" value="旅游" />旅游

    </div>

    <div>

        <input id="btnCheckAll" type="button" value="全选" />

        <input id="btnCheckNone" type="button" value="全不选" />

        <input id="btnCheckReverse" type="button" value="反选" />

        <input id="btnSubmit" type="button" value="提交" />

    </div>

</body>

</html>

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