如何让DataGrid自动生成序号
如何让DataGrid自动生成序号 在DataGrid的第一列自动生成序号，如下图：
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 ;
}
