protected void payButton_OnServerClick(object sender, EventArgs e)
{
if (amountTextBox.Value.Trim().Length == 0 || dueDateTextBox.Value.Length == 0)
{
paymentLabel.Text = "Payment Information is not valid.";
}
else
{
Patient patient = (Patient)ViewState["Patient"];
double totalFee = patient.TotalFee;
if (Convert.ToDouble(amountTextBox.Value) == totalFee)
{
paymentLabel.Text = billManager.UpdateBillInformation(patient.PhoneNumber);
}
else if (Convert.ToDouble(amountTextBox.Value) == 0)
{
paymentLabel.Text = "Bill is Unpaid.";
}
else
{
paymentLabel.Text = "Partial payment is not possible.";
}
}
}