Combo Box Size Issue After All Items Are Removed

Question

My application contains a ComboBox that the user can delete items from. When the program starts up it populates the ComboBox from a list of strings read in from a configurat

Answer 1

Try to use this at the end of your code when you are filling the combobox items:

comboBoxNumTreno.IntegralHeight = true; // auto fit dropdown list

Then to clear it up:

comboBoxNumTreno.ResetText();
comboBoxNumTreno.Items.Clear();
comboBoxNumTreno.SelectedIndex = -1;
comboBoxNumTreno.DropDownHeight = 106; // default value
comboBoxNumTreno.IntegralHeight = false;