列表选择问题

Question

2个ListBox，2个按钮，选择ListBox1中的一个值，点一个按钮当前值移到ListBox2中去，ListBox1的当前值消失，要用JS写，不刷新页面，请高人指点

Answer 1

首先告诉你,不需要用js写.因为你用js写完还是要传到后台.其次这种操作不怎么费,所以用后台自己写就可以了

Answer 2

function SelectAll()
        {
            var lst1=window.document.getElementById("SourceListBox");
            var length = lst1.options.length;
            for(var i=0;i<length;i++)
            {
                var v = lst1.options[i].value;
                var t = lst1.options[i].text;
                var lst2=window.document.getElementById("DestinationListBox");
                lst2.options[i] = new Option(t,v,true,true);    
            }
            
        }
        
        function DelAll()
        {
            var lst2=window.document.getElementById("DestinationListBox");
            var length = lst2.options.length;
            for(var i=length;i>0;i--)
            {
                lst2.options[i-1].parentNode.removeChild(lst2.options[i-1]);
            }    
        }
        
        function SelectOne()
        {
            var lst1=window.document.getElementById("SourceListBox");
            var lstindex=lst1.selectedIndex;
            if(lstindex<0)
                return;
            var v = lst1.options[lstindex].value;
            var t = lst1.options[lstindex].text;
            var lst2=window.document.getElementById("DestinationListBox");
            lst2.options[lst2.options.length] = new Option(t,v,true,true);    
                
        }
        
        function DelOne()
        {
            var lst2=window.document.getElementById("DestinationListBox");
            var lstindex=lst2.selectedIndex;
            if(lstindex>=0)
            {
                var v = lst2.options[lstindex].value+";";
                lst2.options[lstindex].parentNode.removeChild(lst2.options[lstindex]);
            }
                
        }

Answer 3

我页面上还用到FileUpload控件，不用JS的话选择一次FileUpload清空一次，很是郁闷

Answer 4

按钮事件怎么写啊
<asp:Button ID="Button3" runat="server" Text="-->" OnClick="SelectOne()" /><p />怎么没办法编译呢
“ASP.documentmanage_adddoc_aspx”并不包含“SelectOne”的定义

Answer 5

我原来只用过，asp,没用过。NET