Hi
Try like this, cpallini is right..
Its better to
Trim
the values when you are reading from
Textboxes
.
int tot = 0;
int pay, gp, da;
int.TryParse(txtPay.Text.Trim(), out pay);
int.TryParse(txtGp.Text.Trim(), out gp);
int.TryParse(txtDa.Text.Trim(), out pay);
tot = pay + gp + da;