?点击‘编辑’,弹出对话框,修改数据。
prevAll(),获取同级别本元素前面的所有元素。
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 | <!DOCTYPE html><htmllang="en"><head>    <metacharset="UTF-8">    <title></title>    <style>        .modal{            position: fixed;            left:50%;            top: 50%;            width: 400px;            height: 300px;            background-color: #DDDDDD;            margin-left: -200px;            margin-top: -150px;        }        .hide{            display: none;        }    </style></head><body>    <tableborder="1">        <thead></thead>        <tbody>            <tr>                <td>h1</td>                <td>192.168.1.1</td>                <td>111</td>                <tdonclick="GetPrev(this)">编辑</td>            </tr>        <!--1.弹出框-->        <!--2.取出表格数据-->        <!--3.将数据填充到弹出框-->            <tr>                <td>h2</td>                <td>192.168.1.2</td>                <td>222</td>                <tdonclick="GetPrev(this)">编辑</td>            </tr>            <tr>                <td>h3</td>                <td>192.168.1.3</td>                <td>333</td>                <tdonclick="GetPrev(this)">编辑</td>            </tr>        </tbody>    </table>    <divid="dialog"class="modal hide">        <formaction=""method="get">            <p>主机名:<inputtype="text"id="hostname"/></p>            <p>IP:<inputtype="text"id="ip"/></p>            <p>端口:<inputtype="text"id="port"/></p>            <inputtype="submit"value="提交"onclick="return SubmitForm()">            <!--当onclick返回false,submit不进行提交。-->            <inputtype="button"value="取消"onclick="Cancel()">        </form>    </div>    <scripttype="text/javascript"src="jquery-2.1.4.min.js"></script>    <scripttype="text/javascript">        function GetPrev(arg){            var list=[];            $.each($(arg).prevAll(),function(i){                var item=$(arg).prevAll()[i];                //this                var text=$(item).text();                list.push(text);            });            var new_list=list.reverse();            //在弹出框的hostname中设置值            $(‘#hostname‘).val(new_list[0]);            $(‘#ip‘).val(new_list[1]);            $(‘#port‘).val(new_list[2]);            $(‘#dialog‘).removeClass(‘hide‘);        }        function SubmitForm(){            //获取form表单中的input值,判断是否为空;            var ret=true;            //遍历所有的input["type=text"],只要有空值,就将ret设置为false;            $(‘:text‘).each(function(){                //$(this)=要循环的每一个元素                var value=$(this).val();                if(value.trim().length==0){                    $(this).css(‘border-color‘,‘red‘);                    alert("不能为空");                    ret=false;                }else{                    $(this).css(‘border-color‘,‘green‘);                }            });            return ret;        }        function Cancel(){            $(‘#dialog‘).addClass(‘hide‘);        }    </script></body></html> | 
原文:http://www.cnblogs.com/daliangtou/p/5205281.html