如何让DataGrid自动生成序号

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 ;

}