<%@ Page Language=”C#” AutoEventWireup=”true” CodeFile=”Default.aspx.cs” Inherits=”_Default” %>
<!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>Untitled Page</title>
</head>
<body>
<form id=”form1″ runat=”server”>
<div>
<asp:ListBox ID=”LBSource” SelectionMode=”Multiple” runat=”server”>
<asp:ListItem Text=”Item1″ Value=”vItem1″></asp:ListItem>
<asp:ListItem Text=”Item2″ Value=”vItem2″></asp:ListItem>
<asp:ListItem Text=”Item3″ Value=”vItem3″></asp:ListItem>
<asp:ListItem Text=”Item4″ Value=”vItem4″></asp:ListItem>
<asp:ListItem Text=”Item5″ Value=”vItem5″></asp:ListItem>
</asp:ListBox>
<input type=”button” value=”Add” onclick=”moveItems(‘<%= LBSource.ClientID %>‘, ‘<%= LBDestination.ClientID %>‘)” />
<input type=”button” value=”Remove” onclick=”moveItems(‘<%= LBDestination.ClientID %>‘, ‘<%= LBSource.ClientID %>‘)” />
<asp:ListBox ID=”LBDestination” SelectionMode=”Multiple” runat=”server”></asp:ListBox>
</div>
</form>
<script language=”javascript” type=”text/javascript”>
function moveItems(srcID, dstID)
{
src = document.getElementById(srcID);
dst = document.getElementById(dstID); var found = true;
while (found)
{
found = false;
for (var i = 0; i < src.length; i++)
{
if (src[i].selected)
{
dst.appendChild(src[i].cloneNode(true));
src.removeChild(src[i]);
found = true;
break;
}
}
}
}
</script>
</body>
</html>
