Hi,
Please look at the example.
Example
<%@ Page Language="C#" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<script runat="server">
protected void GetValue(object sender, DirectEventArgs e)
{
string values = "";
foreach (SelectedListItem v in this.MultiCombo1.SelectedItems)
{
values += v.Value + " " + v.Text + "</br>";
}
X.Msg.Alert("Selected", values).Show();
}
</script>
<!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>Ext.Net Example</title>
</head>
<body>
<form runat="server">
<ext:ResourceManager runat="server" />
<ext:MultiCombo ID="MultiCombo1" runat="server">
<Items>
<ext:ListItem Text="Item 1" Value="1" />
<ext:ListItem Text="Item 2" Value="2" />
</Items>
</ext:MultiCombo>
<ext:Button runat="server" Text="Get a value" OnDirectClick="GetValue" />
</form>
</body>
</html>