protected void btnUpdate_Click(object sender, EventArgs e)
{
//Session["cart"] = (List<Models.CartItem>)GridView1.DataSource;
List <Models.CartItem> cart = new List <Models.CartItem>();
for (int i = 0; i < GridView1.Rows.Count; i++)
{
Models.CartItem ci = new Models.CartItem();
ci.ProductId = Convert.ToInt32(((Label)GridView1.Rows[i].FindControl("lblProductId")).Text);
ci.Product = ((Label)GridView1.Rows[i].FindControl("lblProduct")).Text;
ci.Qty = Convert.ToInt32(((TextBox)GridView1.Rows[i].FindControl("txtQty")).Text);
ci.Rate = Convert.ToInt32(((Label)GridView1.Rows[i].FindControl("lblRate")).Text);
cart.Add(ci);
}
Session["cart"] = cart;
GridView1.DataSource = cart;
GridView1.DataBind();
Label lbl = (Label)GridView1.FooterRow.FindControl("lblTotal");
lbl.Text = ((List <Models.CartItem>)Session["cart"]).Sum(ci => ci.SubTotal).ToString();
}
protected void btnAdd_Click(object sender, EventArgs e)
{
Button btn = (Button)sender;
List <Models.CartItem> cart = (List <Models.CartItem>)Session["cart"];
int productId = Convert.ToInt32(btn.CommandArgument);
if (btn.Text == "Add")
{
btn.Text = "Remove";
DAL.Product p = new DAL.Product();
p.Id = productId;
p.selectById();
Models.CartItem ci = new Models.CartItem();
ci.ProductId = productId;
ci.Product = p.Name;
ci.Qty = 1;
ci.Rate = (float)p.Price;
cart.Add(ci);
}
else
{
btn.Text = "Add";
var v = cart.Where(ci => ci.ProductId == productId).First();
cart.Remove(v);
}
Session["cart"] = cart;
}