/// <summary>
 /// 销毁对象
 /// </summary>
 public void Dispose()
 {
     base.ReleaseHandle();
     _owner = null;
 }
 /// <summary>
 /// 构造函数,给传入的NumberComboBox对象构造一个Native窗口
 /// </summary>
 /// <param name="owner"></param>
 public EditNativeWindow(NumberComboBox owner)
     : base()
 {
     _owner = owner;
     base.AssignHandle(owner.EditHandle);
 }