enter code hereI have a TabControl on a Form and in the TabPages there are ComboBoxes.

When the form OnLoad, I populate the ListItems in the ComboBoxes and the attempt to set default values to string.Empty.

However, the ComboBox.SelectedText = string.Empty only works for the first TabPage. The other ComboBoxes ignore the command and take the default value as the first item in the list. Why is this so? How can I overcome it?

The ComboBoxes are all set up by this function

public static void PrepareComboBox(ComboBox combobox, FieldValueList list)
{
     combobox.DropDownStyle = ComboBoxStyle.DropDown;
     combobox.AutoCompleteSource = AutoCompleteSource.ListItems;
     combobox.AutoCompleteMode = AutoCompleteMode.Suggest;
     combobox.DataSource = list.DataSource;
     combobox.DisplayMember = list.DisplayMember;
     combobox.ValueMember = list.ValueMember;
     combobox.Text = string.Empty;
     combobox.SelectedText = string.Empty;

}