多选列表Select之双击删除与添加Demo

时间:2022-02-06 16:00:31

双击任一Select控件,查看效果:

srcA
srcC
srcB
targetC
targetB
targetA

 

源码:

<html>

<head>

    <script>

        function removeItem(){

            var sltSrc=document.getElementById('sltSrc');

            var sltTarget=document.getElementById('sltTarget');

            for(var i=;i<sltSrc.options.length;i++)

            {

                var tempOption=sltSrc.options[i];

                if(tempOption.selected){

                    sltSrc.removeChild(tempOption);

                    sltTarget.appendChild(tempOption);

                }    

            }

        }

        function addItem(){

            var sltSrc=document.getElementById('sltSrc');

            var sltTarget=document.getElementById('sltTarget');

            for(var i=;i<sltTarget.options.length;i++)

            {

                var tempOption=sltTarget.options[i];

                if(tempOption.selected){

                    sltTarget.removeChild(tempOption);

                    sltSrc.appendChild(tempOption);

                }    

            }

        }

        function showSelectOptions(){

            var sltTarget=document.getElementById('sltTarget');

            var myhtml="";

            for(var i=;i<sltTarget.options.length;i++)

            {

                myhtml +="Select Item" + i + ":  text= " + sltTarget.options[i].text + ", value=" + sltTarget.options[i].value + "<br/>";

            }

            document.getElementById("showInfo").innerHTML=myhtml;

        }

    </script>

</head>

<body>

    <select ondblclick="removeItem();" id="sltSrc" multiple="true" style="height:150px;width:150px">

        <option value="a">srcA</option>

        <option value="b">srcB</option>

        <option value="c">srcC</option>

    </select>

    <select ondblclick="addItem();" id="sltTarget"  multiple="true" style="height:150px;width:150px">

        <option value="a">targetA</option>

        <option value="b">targetB</option>

        <option value="c">targetC</option>

    </select>

    <div id="showInfo"></div>

    <input type="button" value="showSelectOptions"  onclick="showSelectOptions();"/>

</body>

</html>