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Old October 18th, 2006, 11:06 AM
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Default Calculating Gridview Column Values

Hi All

Is there a way to calculate the values within a Gridview column?

I am displaying a row count and total for a particular column.

Many thanks
Rit
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Old October 18th, 2006, 03:46 PM
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OK, I have found the following sample which works well by placing the total within the footer of the Gridview.

Does anyone know how I could place the total being calculated within a variable so I can use it within other calculations?...

Gridview -
Code:
<asp:GridView ID="GridView1"
  ShowFooter="true" DataKeyNames="ProductId"
  AutoGenerateColumns="false" runat="server"
  DataSourceID="SqlDataSource1">
<Columns>
<asp:BoundField DataField="Productid" HeaderText="Product Id" />
<asp:BoundField DataField="ProductName" FooterText="Total" HeaderText="Product Name" />
<asp:TemplateField HeaderText="Unit Price" FooterStyle-Font-Bold="True">
<ItemTemplate>
  <%# GetUnitPrice(decimal.Parse(Eval("UnitPrice").ToString())).ToString("N2") %>
</ItemTemplate>
<FooterTemplate>
  <%# GetTotal().ToString("N2") %>
</FooterTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" 
ConnectionString="<%$ ConnectionStrings:DummyDB %>"
SelectCommand="Select * from Products">
</asp:SqlDataSource>
Helper Function -
Dim TotalUnitPrice As Decimal = 0.0
Function GetUnitPrice(ByVal Price As Decimal) As Decimal
  TotalUnitPrice += Price
  Return Price
End Function
Function GetTotal() As Decimal
  Return TotalUnitPrice
End Function

"Curtesy of http://aspalliance.com/782"
 


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