private void btnDelete_Click_2(object sender, EventArgs e)
        {
            DialogResult dr = MessageBox.Show("Are you sure to delete this row?", "Confirmation Message",
                                              MessageBoxButtons.YesNo);

            if (dr == DialogResult.Yes)
            {
                Service service = new Service();

                service.ID = Convert.ToInt32(txtID.Text);
                MessageModel aMessageModel = new MessageModel();
                aMessageModel = new ServiceManager().DeleteService(service);
                if (aMessageModel.MessageTitle == "Successfull")
                {
                    MessageBox.Show(aMessageModel.MessageBody, aMessageModel.MessageTitle, MessageBoxButtons.OK, MessageBoxIcon.Information);
                    SetNew();
                }
                else
                {
                    MessageBox.Show(aMessageModel.MessageBody, aMessageModel.MessageTitle, MessageBoxButtons.OK, MessageBoxIcon.Warning);
                }
            }
        }
        private void SaveService()
        {
            try
            {
                if (txtRate.Text == "" || Convert.ToInt32(txtRate.Text) < 0)
                {
                    MessageBox.Show("Please enter the valid rate of this service!", "Invalid", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                    return;
                }

                Service service = new Service();
                service.ID          = Convert.ToInt16(txtID.Text);
                service.ServiceName = Convert.ToString(txtName.Text);
                service.Description = Convert.ToString(txtDescription.Text);
                service.Rate        = Convert.ToDouble(txtRate.Text);
                service.ServiceId   = "Serv-0" + txtID.Text;
                service.Catgory     = cmbCatgory.Text;

                if (btnEdit.Enabled)
                {
                    MessageModel messageModel = new ServiceManager().UpdateService(service);
                    MessageBox.Show(messageModel.MessageBody, messageModel.MessageTitle, MessageBoxButtons.OK, MessageBoxIcon.Information);
                    SetNew();
                }
                else
                {
                    MessageModel messageModel = new ServiceManager().SaveService(service);
                    MessageBox.Show(messageModel.MessageBody, messageModel.MessageTitle, MessageBoxButtons.OK, MessageBoxIcon.Information);
                    SetNew();
                }
            }
            catch (Exception error)
            {
                MessageBox.Show("Failed to save service! " + error.Message.ToString(), "Failed", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
        }