Design-time:
Run-time:
And here is the sample code we used:
def Page_Load(sender, e):
RadComboBox1.SelectedIndexChanged += RadComboBox1_SelectedIndexChanged
pass
def Button1_Click(sender, eventArgs):
RadComboBox1.Text="updated"
pass
def RadComboBox1_SelectedIndexChanged(sender,e):
Label1.Text = e.Text
pass