there are no events for handle both events, specify event handler like this:
this.comboBox1.SelectedIndexChanged += new System.EventHandler(this.comboBox1_SelectedIndexChanged);
this.comboBox1.TextChanged += new System.EventHandler(this.comboBox1_SelectedIndexChanged);
then you perfom actions in
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
// do something
}
this done because both events are apply from System.EventHandler
dhaim programming is a hobby that make some money as side effect :)