protected void TextBox1_TextChanged(object sender, EventArgs e)
{
var db = new QCDBMLDataContext();
food_master sel_food = db.food_masters.Single(food_master => food_master.name.Equals(Label1.Text));
int sel_food_id = sel_food.food_item_id;
menu_master menu = (from sel_menu in db.menu_masters
where sel_menu.canteen_id == (int)Session["can_id"] &&
sel_menu.food_item_id == sel_food_id
select sel_menu).FirstOrDefault();
if (Int32.Parse(TextBox1.Text) > menu.qty)
{
Label2.Text = "Reduce your quantity or select a new food item";
}
}
protected void Button6_Click(object sender, EventArgs e)
{
int rate;
var db = new QCDBMLDataContext();
int pending_order = db.order_headers.Count(order_header => order_header.canteen_id == (int)Session["can_id"] && order_header.status == "placed");
canteen_master canteen = db.canteen_masters.Single(canteen_master => canteen_master.canteen_id == (int)Session["can_id"]);
if (canteen.order_limit <= pending_order)
{
Label4.Text = "Canteen is overcrowded. Please order after a few minutes";
}
else
{
student_master student = db.student_masters.Single(student_master => student_master.id == (int)Session["id"]);
long stu_wallet = (long)student.wallet;
if (((int)Session["tot_amt"]) > stu_wallet)
{
Label4.Text = "You dont have enough money in your wallet";
}
else
{
student.wallet -= (int)Session["tot_amt"];
db.SubmitChanges();
canteen_master sel_canteen = db.canteen_masters.Single(canteen_master => canteen_master.canteen_id == (int)Session["can_id"]);
sel_canteen.wallet += (int)Session["tot_amt"];
db.SubmitChanges();
order_header neworder = new order_header();
neworder.stu_id = (int)Session["id"];
neworder.canteen_id = (int)Session["can_id"];
neworder.order_date = DateTime.Now;
DateTime temp_date = (DateTime)neworder.order_date;
neworder.amount = (int)Session["tot_amt"];
neworder.status = "placed";
db.order_headers.InsertOnSubmit(neworder);
db.SubmitChanges();
order_header oh = db.order_headers.Single(order_header => order_header.order_date.Equals(temp_date));
int oid = oh.order_id;
foreach (GridViewRow gv2row in GridView2.Rows)
{
order_detail neworderdet = new order_detail();
neworderdet.order_id = oid;
food_master sel_food = db.food_masters.Single(food_master => food_master.name.Equals(gv2row.Cells[1].Text));
int sel_food_id = sel_food.food_item_id;
neworderdet.food_item_id = sel_food_id;
foreach (GridViewRow gvrow in GridView1.Rows)
{
if (gvrow.Cells[1].Text.Equals(gv2row.Cells[1].Text))
{
rate = Int32.Parse(gvrow.Cells[3].Text);
neworderdet.rate = rate;
neworderdet.qty = Int32.Parse(gv2row.Cells[2].Text);
break;
}
}
db.order_details.InsertOnSubmit(neworderdet);
menu_master menu = db.menu_masters.Single(menu_master => menu_master.canteen_id == neworder.canteen_id && menu_master.food_item_id == neworderdet.food_item_id);
menu.qty -= neworderdet.qty;
db.SubmitChanges();
}
}
}
DropDownList1_SelectedIndexChanged(sender, e);
}
private void detach_menu_masters(menu_master entity)
{
this.SendPropertyChanging();
entity.food_master = null;
}
partial void Deletemenu_master(menu_master instance);
partial void Updatemenu_master(menu_master instance);
partial void Insertmenu_master(menu_master instance);
