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Total on the Grid Footer

Posted on 2008-10-08
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I am wondering why my total footer is always zero(0): this is my code;

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ARAging.aspx.cs" Inherits="tblCustomer_ARAging" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

Double Thirty;
Double Sixty;
Double Ninety;
Double OneTwenty;
Double Over120;

void detailsGridView_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
try
{
// add the UnitPrice and QuantityTotal to the running total variables
Thirty += Convert.ToDouble((DataBinder.Eval(e.Row.DataItem, "30 Days")).ToString());
Sixty += Convert.ToDouble((DataBinder.Eval(e.Row.DataItem, "31-60")).ToString());
Ninety += Convert.ToDouble(DataBinder.Eval(e.Row.DataItem, "61-90"));
OneTwenty += Convert.ToDouble(DataBinder.Eval(e.Row.DataItem, "91-120"));
Over120 += Convert.ToDouble(DataBinder.Eval(e.Row.DataItem, "Over 120"));
}
catch
{
//
}

}
else if (e.Row.RowType == DataControlRowType.Footer)
{
e.Row.Cells[0].Text = "Totals:";

// for the Footer, display the running totals
e.Row.Cells[1].Text = Thirty.ToString("n");
e.Row.Cells[2].Text = Sixty.ToString("n");
e.Row.Cells[3].Text = Ninety.ToString("n");
e.Row.Cells[4].Text = OneTwenty.ToString("n");
e.Row.Cells[5].Text = Over120.ToString("n");

e.Row.Cells[1].HorizontalAlign = e.Row.Cells[2].HorizontalAlign = e.Row.Cells[3].HorizontalAlign = e.Row.Cells[4].HorizontalAlign = e.Row.Cells[5].HorizontalAlign = HorizontalAlign.Right;
e.Row.Font.Bold = true;
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<title>Aging Receivable</title>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" BackColor="White"

BorderColor="#E7E7FF" BorderStyle="None" BorderWidth="1px" CellPadding="3" DataSourceID="SqlDataSource1" GridLines="Horizontal" ShowFooter="True" OnRowDataBound="detailsGridView_RowDataBound">

<FooterStyle BackColor="#B5C7DE" ForeColor="#4A3C8C" />
<RowStyle BackColor="#E7E7FF" ForeColor="#4A3C8C" />
<Columns>
<asp:BoundField DataField="30 Days" HeaderText="30 Days" SortExpression="30 Days" DataFormatString="{0:n}"/>
<asp:BoundField DataField="Over 120" HeaderText="Over 120" SortExpression="Over 120" DataFormatString="{0:n}"/>
</Columns>
<PagerStyle BackColor="#E7E7FF" ForeColor="#4A3C8C" HorizontalAlign="Right" />
<SelectedRowStyle BackColor="#738A9C" Font-Bold="True" ForeColor="#F7F7F7" />
<AlternatingRowStyle BackColor="#F7F7F7" />
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%\$ ConnectionStrings:TradingConnectionString %>"
SelectCommand="a_spARAging" SelectCommandType="StoredProcedure"></asp:SqlDataSource>

</div>
</form>
</body>
</html>

0
Question by:JaimeJegonia
• 5
• 5

LVL 4

Accepted Solution

novynov earned 500 total points
ID: 22674378
So, I wrote a little demo app to try what you were doing and it worked fine. The only real difference was that I didn't do any gridview styling - that shouldn't matter. At first I thought the problem might lie with the column names - they aren't valid C# identifier names...so might have caused the databinder to have problems. But, that wasn't it. I did it fine with identical column names.

Have you put a debugger on the rowdatabound handler? Are the totals at least getting accumulated? It would be good to know if the problem lies in the evaluation and storing of the value, or if it is just a  footer rendering problem. That would at least partition the troubleshooting space.

Let me know. I'll be glad to help more.
0

LVL 4

Expert Comment

ID: 22674397
One other question: My demo assumed that your numeric colums were of SQL type float. Is this the case?
0

Author Comment

ID: 22674423
NovyNov,

It's just a footer rendering problem. The SQL type is decimal(14,2).

Thanks,

0

LVL 4

Expert Comment

ID: 22674494
Very strange: I changed my sql type to match yours, and basically copied your code into a new page verbatim - the only exception is that my db only has 3 of the numeric fields, not 5. All worked well.

When you breakpoint on the Footer row section, does the code get executed? Are the cell values assigned correctly at least in this call?
0

LVL 4

Expert Comment

ID: 22674540
So, maybe a long shot, but given that I don't see the source for your code behind in your posting above, ARAging.aspx.cs, is it possible that something in there is blowing away the values?
0

Author Comment

ID: 22674561
Thanks. I think my problem is with the null value.
Please see my pivot result against grid total view.

Error.PNG
0

LVL 4

Expert Comment

ID: 22677439
Ahhh...possibly, although you said that the totals were getting calculated correctly in the DataRow section of your event handler. Can you copy in your stored procedure. I'll try to reproduce the results and come up with a solution.
0

Author Comment

ID: 22683322
novynov:

I solved my issue by creating a small conversion function that catches "ArgumentNullException" and return to zero (0).

Anyways, thanks for helping me to come up with the solution and I'll still give you the points.

Jimi
0

Author Closing Comment

ID: 31504139
Thanks for the help & time.
0

Author Comment

ID: 22683357
There's no change in my SP but "ArgumentNullException" tweak in C# page.
Corrected.PNG
0

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