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Shopping Cart DataSet Total Problem?

Posted on 2006-10-31
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Last Modified: 2013-11-29
I've been using a session dataset to hold products and a cookie to hold the total.

How can I make the dataset hold the total as well?

I'm using this code to add the total to a row:

 DataSet ds = (DataSet)Session["myds"];
        DataRow row = ds.Tables["tbl_Sales"].NewRow();
        row["col_Total"] = runningTotal.ToString();
        ds.Tables["tbl_Sales"].Rows.Add(row);

However, I never know which row will contain the actual accurate running total.
The row will vary according to the number of products added before the row.

I use this code to retrieve the total although "Rows[3 -10]" varies

        Amount.Text = ds.Tables["tbl_Sales"].Rows[3]["col_Total"].ToString();  

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Question by:kvnsdr
  • 2
5 Comments
 
LVL 12

Expert Comment

by:craskin
ID: 17846533
you're probably better off keeping the total in a column using a SUM("moneycolumnname") AS Total in your SELECT statement that fills the dataset.
0
 
LVL 12

Expert Comment

by:craskin
ID: 17846540
or i guess you have some SP that gets the total for you, so i'm not sure why you want to put it in a row in your dataset.
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LVL 1

Author Comment

by:kvnsdr
ID: 17847382
Is it common to use both session dataset and cookie for total?
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LVL 96

Accepted Solution

by:
Bob Learned earned 250 total points
ID: 17849013
You can use a Session variable for both.  A cookie is commonly used to persist data between sessions, and since you aren't persisting the DataSet in a cookie, then it doesn't make any sense to persist the total.

Bob
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