private async Task InsertMethodOfPayment()
        {
            if (ValidateInputs())
            {
                MethodOfPaymentInsertVM methodOfPaymentInsertVM = new MethodOfPaymentInsertVM()
                {
                    Method = TbMethod.Text
                };

                ls.LblLoading.Text = "Adding";
                ls.Show();
                bool success = await methodOfPaymentApi.InsertMethodOfPayment(methodOfPaymentInsertVM);

                ls.Close();

                if (success)
                {
                    Close();
                }
                else
                {
                    MessageBox.Show("Fail!");
                }
            }
            else
            {
                MessageBox.Show("All input fields are required!");
            }
        }