public void loginButtonClick(String username)
{
if (username == "")
{
MessageBox.Show("Empty Username", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
user.Username = username;
loginForm.Hide();
OperationForm operationForm = new OperationForm(user);
operationForm.ShowDialog();
loginForm.Show();
}
}
public OperationPresenter(OperationForm operation, User user)
{
this.user = user;
operationForm = operation;
historyService = new HistoryService();
}