Background color

[Tina]

How can i change the background color of the combobox dropdown?

[Princy]

Hello Tina,

You can try the following CSS.

CSS:

<style type="text/css">
 .RadComboBoxDropDown .rcbList
 {
    background-color:Red ! important;
 }
</style>

Thanks,
Princy.

[Tina]

How can I add new items in combobox from client side?

[Princy]

Hello Tina,

Try the following javascript.
JS:

function Add()
{
 var combo = $find("<%= RadComboBox1.ClientID %>");
 var Item = new Telerik.Web.UI.RadComboBoxItem();
 Item.set_text("Mario");
 combo.trackChanges();
 combo.get_items().add(Item);
 Item.select();
 combo.commitChanges();
}

-Princy.