第一種方式,直接在Aspx頁面GridView模板列中.這種的缺點(diǎn)是到第二頁分頁時(shí)又重新開始了. 
<asp:TemplateField HeaderText="序號" InsertVisible="False">                       
    <ItemTemplate>               
        <%#Container.DataItemIndex+1%>            
    </ItemTemplate>             
</asp:TemplateField>

第二種方式分頁時(shí)進(jìn)行了計(jì)算,這樣會累計(jì)向下加. 
<asp:TemplateField HeaderText="序號" InsertVisible="False">
           <ItemStyle HorizontalAlign="Center" />
           <HeaderStyle HorizontalAlign="Center"/>
            <ItemTemplate>
                   <asp:Label ID="Label2" runat="server" Text='<%# this.GridView1.PageIndex * this.GridView1.PageSize + this.GridView1.Rows.Count + 1%>' />
           </ItemTemplate>
</asp:TemplateField>

還有一種方式放在cs代碼中,和第二種相似.

<asp:BoundField HeaderText="序號" ></asp:BoundField> 
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)         
{             
    if (e.Row.RowIndex != -1)             
    {                 
        int indexID = this.GridView1.PageIndex * this.myGridView.PageSize + e.Row.RowIndex + 1;                 
        e.Row.Cells[0].Text = indexID.ToString();             
    }         
}