You can use one of the 3 methods below :
1)
winComboBox1.SelectedIndex = 2;
2)
object[] obj = new object[ 1 ];
obj[ 0 ] = “select4”;
ComboBoxItem item = new ComboBoxItem( obj );
winComboBox1.Items.Add( obj );
winComboBox1.SelectedItem = item;
3)
//requires the ValueMember to be set to work, thus works only in a bound context
winComboBox1.SelectedValue = “select1”;
Imported from legacy forums. Posted by André (had 3650 views)