how to add datalist item to temporary cart table in asp.net

eswar rao

10y2.4k.NET

hi every one,

i would like to add my datalist item to temporary cart table (data table) , when i am click on image buttton of datalist item ..plz tel me, already i am tried some , but it was showing one item detail repeated , and also if i am click on another item previous item was lost from data table please help me....

my c# code

------------------

protected void dl_beers_ItemCommand(object source, DataListCommandEventArgs e)

{

if (e.CommandName == "item_plus")

{

// Label lblprice = (Label)(e.Item.FindControl("lbl_beer_price"));

Label lblcart = (Label)(e.Item.FindControl("lbl_items_order"));

Label lblitem = (Label)(e.Item.FindControl("lbl_beer_name"));

Label lblpid = (Label)(e.Item.FindControl("lbl_pid"));

int order = Convert.ToInt16(lblcart.Text);

order = order + 1;

int index = e.Item.ItemIndex;

Label lblprice = (Label)dl_beers.Items[index].FindControl("lbl_beer_price");

//for price

float price = float.Parse(lblprice.Text);

price = price * order;

Convert.ToSingle(price);

//add to cart

DataTable dt = new DataTable();

dt.Columns.Add("pid",typeof(string));

dt.Columns.Add("pname",typeof(string));

dt.Columns.Add("pprice", typeof(string));

for (int i = dt.Rows.Count; i <= Convert.ToInt32(lblcart.Text); i++) //for (int i = 0; i <= Convert.ToInt32(lblcart.Text); i++)

{

dt.Rows.Add(lblpid.Text, lblitem.Text, lblprice.Text);

addtocart();

ViewState["dt"] = dt;

this.BindGrid();

}

lblcart.Text = Convert.ToString(order);

}

if (e.CommandName == "item_minus")

{

// int ordercount = Convert.ToInt16(spn_beersorder.InnerText);

Label lblcart = (Label)(e.Item.FindControl("lbl_items_order"));

int order = Convert.ToInt16(lblcart.Text);

if (order > 0)

{

order = order - 1;

// beers_order = order;

lblcart.Text = Convert.ToString(order);

// ordercount = ordercount - 1;

// spn_beersorder.InnerText = Convert.ToString(ordercount);

}

else

{

order = 0;

lblcart.Text = Convert.ToString(order);

// spn_beersorder.InnerText = Convert.ToString(order+"x");

}

my aspx code

----------------------

Item

Name

Volume

Price

Order

<%#Eval("pdisc") %>

// cart view

5 Replies

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Vishal Jadav10y ago
Hi,
It can be achieved by creating a session variable which can hold the data table you created with values.
Steps.
--------------
1. First time check the session variable is empty then create a datatable with required columns and assign it to the Session Variable.
2. When you add the rows each time above code will be checked and if Session is not null means it has a datatable inside it then just convert Session variable to Datatable and add row to it.
3. Same way to update the cart values you can check the session and if found then update.
4. Finally upload data from session to db.
Thats it.
Hope it helps.
Thanks.
Cheers..
0
eswar rao10y ago
thank you boss, i am applyed code as like what you say..but it is not working plz..write a code for that methods only ,if u free i hope you understand my problem..thnak you
0
Midhun Tp10y ago
Hi,
Take this block,
DataTable dt = new DataTable();
dt.Columns.Add("pid",typeof(string));
dt.Columns.Add("pname",typeof(string));
dt.Columns.Add("pprice", typeof(string));
outside of "dl_beers_ItemCommand" method and put it globally just before,
protected void Page_Load(object sender, EventArgs e)
0
eswar rao10y ago
thank you for given response to my qutn ..,
ok , can you please tel me how i can i do this...
0
Midhun Tp10y ago
Hi,
You are creating Datatable inside itemcommand block. Instead you should declare it globally. Else every time item command is executed, datatable loses old records and contains only current rows. Hence cart will only shows current record.
+1