//Delete the selected item
protected void Cart_GridViewDelete(object sender, GridViewDeleteEventArgs e)
{
string ItemNo = Cart.DataKeys[e.RowIndex].Values[0].ToString();
RaisedItem selected = cartitem.Where(item => item.ItemNo == ItemNo).FirstOrDefault();
cartitem.Remove(selected);
Session["session"] = cartitem;
Cart.DataSource = cartitem;
Cart.DataBind();
}
//Select the selected item
protected void StationeryGridView_SelectedIndexChanged(object sender, EventArgs e)
{
GridViewRow row = StationeryGridView.SelectedRow;
RaisedItem cart = new RaisedItem();
cart.ItemNo = row.Cells[0].Text;
cart.description = row.Cells[1].Text;
string input = (row.Cells[2].FindControl("Quantity") as TextBox).Text.ToString();
int value;
if (!int.TryParse(input, out value) || value < 0)
{
Msg.Text = "The input number has to be integer (greater than 0).";
}
else
{
Session["Test"] = row;
Msg.Text = "";
cart.quantity = (row.Cells[2].FindControl("Quantity") as TextBox).Text;
bool isAlreadyInCart = false;
foreach (var item in cartitem)
{
if (item.ItemNo.Equals(cart.ItemNo))
{
int oldQty = Int32.Parse(item.quantity);
int newQty = Int32.Parse(cart.quantity);
item.quantity = (oldQty + newQty).ToString();
isAlreadyInCart = true;
break;
}
}
if (!isAlreadyInCart)
{
cartitem.Add(cart);
}
Session["session"] = cartitem;
Cart.DataSource = cartitem;
Cart.DataBind();
Confirm.Visible = true;
Delete.Visible = true;
}
}
