Form Designer: GridView: .NET: How to retrieve a column's footer value

Process Design Form Designer
1

To access to the computed footer of a GridView, you have to use the index of the column (starting from 0), and get the first Label control, since the control doesn’t have an ID .

It is best to call this function at Page_LoadComplete in case you have a =SUM in the footer, since the calculation occurs after the Page_Load event.

This example will get the footer value of the third column:

protected void Page_LoadComplete(object sender, EventArgs e)
    {
       TEXTBOX_ID.Text = (REQUEST_GRIDVIEW1.FooterRow.Cells[2].Controls[0] as Label).Text;
    }
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