private void metroButton2_Click(object sender, EventArgs e)
        {
            if (comboBoxAccType.Text != "" && metroTextBoxUsername.Text != "" && metroTextBoxPassword.Text != "" && metroTextBoxFullName.Text != "" && metroTextBoxPhone.Text != "" && metroTextBoxAddress.Text != "")
            {
                if (comboBoxAccType.Text == "Admin")
                {
                    bool m = u.AddAdmin(metroTextBoxUsername.Text, metroTextBoxPassword.Text, metroTextBoxFullName.Text, metroTextBoxPhone.Text, metroTextBoxAddress.Text);
                    if (m == true)
                    {
                        MetroFramework.MetroMessageBox.Show(this, "Admin Account Added Successfully.");
                    }
                }
                else if (comboBoxAccType.Text == "Doctor")
                {
                    bool m = u.AddDoc(metroTextBoxUsername.Text, metroTextBoxPassword.Text, metroTextBoxFullName.Text, metroTextBoxPhone.Text, metroTextBoxAddress.Text);
                    if (m == true)
                    {
                        MetroFramework.MetroMessageBox.Show(this, "Doctor Account Added Successfully.");
                    }
                }
                else if (comboBoxAccType.Text == "Receptionist")
                {
                    bool m = u.AddReceptionist(metroTextBoxUsername.Text, metroTextBoxPassword.Text, metroTextBoxFullName.Text, metroTextBoxPhone.Text, metroTextBoxAddress.Text);
                    if (m == true)
                    {
                        MetroFramework.MetroMessageBox.Show(this, "Receptionist Account Added Successfully.");
                    }
                }
            }

            else
            {
                MetroFramework.MetroMessageBox.Show(this, "Please Put All Inputs.");
            }
        }