How to diplay BoundField Columns values sum in Footer Row - asp.net

Question

I am binding a gridview, all columns are boundfields :
<asp:BoundField DataField="PLAN_SEP" ItemStyle-Width="52px" ItemStyle-HorizontalAlign="Center" HeaderText="Plan For The Month" ReadOnly="True" SortExpression="PLAN_SEP" />
<asp:BoundField DataField="ACTUAL_SEP" ItemStyle-Width="52px" ItemStyle-HorizontalAlign="Center" HeaderText="Actual For The Month" ReadOnly="True" SortExpression="ACTUAL_SEP" />
<asp:BoundField DataField="SCORE_FORMONTH" ItemStyle-Width="80px" ItemStyle-HorizontalAlign="Center" HeaderText="Score" ReadOnly="True" SortExpression="SCORE_FORMONTH" />
<asp:BoundField DataField="PLAN_LIVE" ItemStyle-Width="52px" ItemStyle-HorizontalAlign="Center" HeaderText="Plan Upto Month" ReadOnly="True" SortExpression="PLAN_LIVE" />
<asp:BoundField DataField="ACTUAL_LIVE" ItemStyle-Width="52px" ItemStyle-HorizontalAlign="Center" HeaderText="Actual Upto Month" ReadOnly="True" SortExpression="ACTUAL_LIVE" />
<asp:BoundField DataField="SCORE_UPTOMONTH" ItemStyle-Width="80px" ItemStyle-HorizontalAlign="Center" HeaderText="Score" ReadOnly="True" SortExpression="SCORE_UPTOMONTH" />
Now I need to display a footer row which will show sums of respective column values.
Total | total 1 | total 2 | ......
How to achieve this ?

Answer 1

EDIT
For bound fields on ly
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
double total = 0;
if (e.Row.RowType == DataControlRowType.DataRow)
{
string sNum = e.Row.Cells[1].Text;//just changed the index of cells based on your requirements
double sum;
if(double.TryParse(sNum,out sum))
{
total += sum;
}
GridView1.FooterRow.Cells[1].Text = total.ToString();
}
}
or
You can make use of databoudnc column and code like this
int total = 0;
protected void gvEmp_RowDataBound(object sender, GridViewRowEventArgs e)
{
if(e.Row.RowType==DataControlRowType.DataRow)
{
//replace maounty with the name of property
total += Convert.ToInt32(DataBinder.Eval(e.Row.DataItem, "Amount"));
}
if(e.Row.RowType==DataControlRowType.Footer)
{
Label lblamount = (Label)e.Row.FindControl("lblTotal");
lblamount.Text = total.ToString();
}
}
Check turotiral : http://www.aspdotnet-suresh.com/2011/02/how-to-display-sum-of-columns-total-in.html

Answer 2

This can be easily done as follows:
In aspx:
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false"
onrowdatabound="GridView1_RowDataBound" ShowFooter="true">
<Columns>
<asp:BoundField DataField="Qty" />
</Columns>
</asp:GridView>
In aspx.cs
//Define global variable
int totQty = 0;
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
totQty += Convert.ToInt32(DataBinder.Eval(e.Row.DataItem, "Qty"));
}
if (e.Row.RowType == DataControlRowType.Footer)
{
e.Row.Cells[0].Text = totQty.ToString();
}
}
That's it.