<script>
function chartLoad() {
$find("RadHtmlChart2").get_kendoWidget().setOptions({
legend: {
position: "top",
width: 162,
height: 88,
orientation: "vertical"
}
})
}
</script>
<telerik:RadHtmlChart ID="RadHtmlChart2" runat="server" Width="350" Height="350">
<ClientEvents OnLoad="chartLoad" />
...
</telerik:RadHtmlChart>