Auto Numbering in Grid view

this article shows how to do auto numbering in grid view

in some cases we need to provide numbering of rows

in the folowing example i have connected a datatable with grid view

here is the htmnl code of grid view

 <asp:GridView ID="GridView1" runat="server" AllowPaging="True" OnRowDataBound="GridView1_RowDataBound" AutoGenerateColumns="False" ShowFooter="True" PageSize="5" OnPageIndexChanging="GridView1_PageIndexChanging">
            <Columns>
                <asp:TemplateField HeaderText="No" Visible="False"></asp:TemplateField>
                <asp:BoundField DataField="name" HeaderText="Name" />
                <asp:BoundField DataField="gender" HeaderText="Gender" />
               
                <asp:BoundField DataField="origin" HeaderText="Origin" />
            </Columns>
        </asp:GridView>

 protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        DataRowView drv = (DataRowView) e.Row.DataItem;

        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            e.Row.Cells[0].Text = Convert.ToString(e.Row.DataItemIndex + 1);
            if (drv["gender"].ToString() == "M")
            {
                e.Row.Cells[3].Text = "Male";
            }
            else
            {
                e.Row.Cells[3].Text = "Female";

            }

        }
    }

e.Row.Cells[0].Text = Convert.ToString(e.Row.DataItemIndex + 1);
is the line giving auto numbering

also the datatable has a field called gender which contains the value M/F

if it is M cell will contain Male
if it is F cell will contain Female