private void LoadingProcess()
 {
     _wait = new WaitForm()
     {
         TopMost = true
     };
     _wait.ShowDialog();
 }
 public void Close()
 {
     if (_wait != null)
     {
         _wait.BeginInvoke(new ThreadStart(_wait.CloseWaitForm));
         _wait       = null;
         _loadThread = null;
     }
 }
        private void LoadingProcess(object parent)
        {
            Form parent1 = parent as Form;

            _wait = new WaitForm(parent1)
            {
                TopMost = true
            };
            _wait.ShowDialog();
        }