private void logInButton_Click(object sender, EventArgs e)
 {
     DataBase.DataBaseClient client = new DataBase.DataBaseClient();
     client.Open();
     string username = usernameBox.Text;
     string password = passwordBox.Text;
     tmpUserId = client.Authorizate(username, password);
     switch (tmpUserId)
     {
         case -1:
             {
                 usernameBox.Text = "";
                 passwordBox.Text = "";
                 Bitmap fail = new Bitmap(@"..\..\images\fail1.png");
                 nameCheckBox.SizeMode = PictureBoxSizeMode.StretchImage;
                 passwordCheckBox.SizeMode = PictureBoxSizeMode.StretchImage;
                 nameCheckBox.Image = fail;
                 passwordCheckBox.Image = fail;
                 client.Close();
                 break;
             }
         case -2:
             {
                 passwordBox.Text = "";
                 Bitmap suceed = new Bitmap(@"..\..\images\suceed.jpg");
                 Bitmap fail = new Bitmap(@"..\..\images\fail1.png");
                 nameCheckBox.SizeMode = PictureBoxSizeMode.StretchImage;
                 passwordCheckBox.SizeMode = PictureBoxSizeMode.StretchImage;
                 nameCheckBox.Image = suceed;
                 passwordCheckBox.Image = fail;
                 client.Close();
                 break;
             }
         default:
             ClientForm InClient = new ClientForm(this);
             this.Hide();
             InClient.Show();
             // this.Close();
             break;
     }
 }