DataList新手问题

我想给从数据库中提取显示在DataList中的每条数据加上个超连接但出现错误:
用户代码未处理:HttpException.
DataBinding:“System.Data.DataRowView”不包含名为“treeview”的属性.请各位高手帮忙!!
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="treeview.aspx.cs" Inherits="treeview" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>无标题页</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:DataList ID="DataList1" runat="server" DataSourceID="SqlDataSource1" RepeatDirection="Horizontal">
            <ItemTemplate>
                &nbsp;<a href='<%#DataBinder.Eval(Container.DataItem,"treeview.aspx?dwname={3}") %>'><asp:Label ID="DwNameLabel" runat="server" Text='<%# Eval("DwName") %>'></asp:Label></a>
                |
                <br />
                <br />
            </ItemTemplate>
        </asp:DataList><asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:SqlServices %>"
            SelectCommand="SELECT [DwName] FROM [Dw]"></asp:SqlDataSource>    
    </div>
    </form>
</body>
</html>