private async void btnSave_Click(object sender, EventArgs e)
{
if (txtInterest.Text == "" || cboPaymentTerm.SelectedIndex == -1)
{
MetroFramework.MetroMessageBox.Show(this, "Warning! Interest rate must have a value.", "Interest",
MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (!IsNumeric(txtInterest.Text))
{
MetroFramework.MetroMessageBox.Show(this, "Warning! Interest rate must be a number.", "Interest",
MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (double.Parse(txtInterest.Text) <= 0)
{
MetroFramework.MetroMessageBox.Show(this, "Warning! Interest rate must have a valid value not 0 or negative.", "Interest",
MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
decimal rate = Convert.ToDecimal(txtInterest.Text);
int id = int.Parse(cboPaymentTerm.SelectedValue.ToString());
if (await interests.Update(rate, id))
{
MetroFramework.MetroMessageBox.Show(this, interests.msg, "Interest",
MessageBoxButtons.OK, MessageBoxIcon.Question);
}
else
{
MetroFramework.MetroMessageBox.Show(this, interests.msg, "Interest",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
