zoukankan      html  css  js  c++  java
  • jquery select 移动option <<转>>

    <html> 
    <head> 
    <script type='text/javascript'    
    src='http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.js'></script> 
    <script type='text/javascript'> 
    $(function() {   
        $("#btnMoveUp,#btnMoveDown").click(function() {   
            var $opt = $("#selList option:selected:first");   
            if (!$opt.length) return;   
            if (this.id == "btnMoveUp") 
                $opt.prev().before($opt);   
            else 
                $opt.next().after($opt);   
            });   
            //按Alt加上下鍵也可以移動   
            $("#selList").keydown(function(evt) {   
                    if (!evt.altKey) return;   
                    var k = evt.which;
                    if (k == 38) { $("#btnMoveUp").click(); return false; }   
                    else 
                        if (k == 40) { $("#btnMoveDown").click(); return false; }   
            });
    });   
    </script> 
    </head><body> 
    <select id='selList' size='7' style=' 100px'> 
    <option>Item 1</option> 
    <option>Item 2</option> 
    <option>Item 3</option> 
    <option>Item 4</option> 
    <option>Item 5</option> 
    </select><br /> 
    <input type="button" value="▲" id="btnMoveUp" title="快速鍵: alt+向上" /> 
    <input type="button" value="▼" id="btnMoveDown" title="快速鍵: alt+向下"/> 
    </body> 
    </html>
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  • 原文地址:https://www.cnblogs.com/BigIdiot/p/2755098.html
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