再问有关gridview问题 ！！！！！！

我用的是vwd2005  意思是取得选择行的数值但系统老是提示：GridViewRow row = CustomersGridView.Rows[e.NewSelectedIndex]
这一行的 GridViewRow是类型不能用作为表达式 还提示 e的格式不对
谢谢指点<%@ Page Language="VB" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server">    Protected Sub GridView1_PageIndexChanging(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewPageEventArgs)    End Sub    Protected Sub GridView1_SelectedIndexChanging(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewSelectEventArgs)
  GridViewRow row = CustomersGridView.Rows[e.NewSelectedIndex]        
    End Sub
</script><html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>测试</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="usern"
            DataSourceID="SqlDataSource1" OnSelectedIndexChanging="GridView1_SelectedIndexChanging">
            <Columns>
                <asp:BoundField DataField="id" HeaderText="id" InsertVisible="False" ReadOnly="True"
                    SortExpression="id" />
                <asp:BoundField DataField="usern" HeaderText="usern" ReadOnly="True" SortExpression="usern" />
            </Columns>
        </asp:GridView>
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:shujuConnectionString %>"
            SelectCommand="SELECT [id], [usern] FROM [test]"></asp:SqlDataSource>
    
    </div>
    </form>
</body>
</html>