private void LoadContent()
{
txtUsername.Visible = false;
reqUsername.Enabled = false;
lblUsernameEditMode.Text = OldTester.Username;
lblUsernameEditMode.Visible = true;
rowPassword.Visible = false;
rowRepeatPassword.Visible = false;
txtName.Text = OldTester.Name;
txtSurname.Text = OldTester.Surname;
txtEmail.Text = OldTester.Email;
txtPhone.Text = OldTester.Phone;
btnChangePassword.Visible = true;
}