protected void btnPlus_Click(object sender, EventArgs e)
{
LinkButton btn = (LinkButton)sender;
GridViewRow row = (GridViewRow)btn.NamingContainer;
int qty = items[row.RowIndex].Quantity + 1;
if (qty > BusinessLogic.GetQty(BusinessLogic.GetBookID(items[row.RowIndex].Isbn)))
{
pnlError.Visible = true;
}
else
{
items[row.RowIndex].Quantity += 1;
Session["cartItem"] = items;
Response.Redirect("~/Cart");
}
}
