public ComboBoxField(string name, string label, ArrayInstance list)
: base(name, label, FieldType.ComboBox, new ComboBox())
{
var comboBox = (ComboBox)Control;
comboBox.DropDownStyle = ComboBoxStyle.DropDownList;
comboBox.FlatStyle = FlatStyle.System;
comboBox.Items.Add("");
list.ForEach((index, value) => comboBox.Items.Add(value.ConvertToString()));
}