private void registerButton_Click(object sender, EventArgs e)
{
this.Hide();
var form2 = new RegisterUserForm();
form2.Closed += (s, args) => this.Close();
form2.ShowDialog();
}
private void ModifyButton_Click(object sender, EventArgs e)
{
var form3 = new RegisterUserForm();
form3.LoadDataForEdit(this.UserName, this.UserBirthday);
form3.Closed += (s, args) => this.LoadingUserData();
form3.ShowDialog();
}
