代码实现：
前台（WebForm1.aspx）：
〈asp:DataGrid id="grdCustomer" style="Z-INDEX: 102; LEFT: 30px; POSITION: absolute; TOP: 152px" runat="server" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" BackColor="White" CellPadding="3" Font-Size="X-Small" AutoGenerateColumns="False"〉
〈SelectedItemStyle Font-Bold="True" ForeColor="White" BackColor="#669999"〉
〈/SelectedItemStyle〉
〈AlternatingItemStyle BackColor="#FFF2F2"〉〈/AlternatingItemStyle〉
〈ItemStyle ForeColor="#000066" BackColor="#FAFFF9"〉〈/ItemStyle〉
〈HeaderStyle Font-Bold="True" ForeColor="White" BackColor="#006699"〉〈/HeaderStyle〉
〈FooterStyle ForeColor="#000066" BackColor="White"〉〈/FooterStyle〉
〈Columns〉
〈asp:TemplateColumn HeaderText="序号"〉
〈ItemTemplate〉
〈asp:label id="lable1" runat=server〉〈%#GetCount()%〉〈/asp:label〉
〈/ItemTemplate〉
〈/asp:TemplateColumn〉
〈asp:BoundColumn DataField="CustomerID" HeaderText="客户ID"〉〈/asp:BoundColumn〉
〈asp:BoundColumn DataField="CompanyName" HeaderText="公司名称"〉〈/asp:BoundColumn〉
〈asp:BoundColumn DataField="City" HeaderText="城市"〉〈/asp:BoundColumn〉
〈asp:BoundColumn DataField="Address" HeaderText="地址"〉〈/asp:BoundColumn〉
〈/Columns〉
〈/asp:DataGrid〉
后台（WebForm1.aspx.cs）：
int count;
private void Page_Load(object sender, System.EventArgs e)
{
if(!IsPostBack)
{
SqlConnection cnn = new SqlConnection();
cnn.ConnectionString = "data source=localhost;initial catalog=Northwind;password=;"
+"persist security info=True;user id=sa;workstation id=APJ062;packet size=4096";
string sqlstr = "select Top 10 CustomerID, CompanyName, City, Address from Customers";
cnn.Open();
SqlDataAdapter ad = new SqlDataAdapter(sqlstr,cnn);
DataTable dt = new DataTable();
ad.Fill(dt);
grdCustomer.DataSource = dt;
grdCustomer.DataBind();
}
//自动记数函数，在前台调用
public int GetCount()
{
return ++count ;
}
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