Get The Value From The Dropdown To Return To The TextBox?

Mar 2, 2011

How to get the value from the dropdown to return to the TextBox? The following does not work. You can select the item from list though.

<body>
<form id="form1" runat="server">
<script type="text/javascript">
function pageLoad() {
//Same Width
$get('ListBox1').style.width = $get('TextBox1').clientWidth;
}
</script>
<ajax:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
</ajax:ToolkitScriptManager>
<div>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<ajax:DropDownExtender ID="TextBox1_DropDownExtender" DropDownControlID="ListBox1"
runat="server" DynamicServicePath="" Enabled="True" TargetControlID="TextBox1"
HighlightBackColor="WhiteSmoke">
</ajax:DropDownExtender>
</div>
<asp:ListBox ID="ListBox1" runat="server" AutoPostBack="True">
<asp:ListItem>Item 1</asp:ListItem>
<asp:ListItem>Item 2</asp:ListItem>
<asp:ListItem>Item 3</asp:ListItem>
</asp:ListBox>
</form>

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