Con esto realizas la coneccion y cargas un dataset:
Public Sub Page_Load(obj As Object, e As Eventargs)
If Not Page.IsPostback then
BindData()
End If
End Sub
Public Sub BindData()
Dim conn as New SqlConnection("Data Source='(local)'; Integrated Security= SSPI; DataBase='Tabla'")
Conn.open()
Dim myDataAdapter As New SqlDataAdapter("SELECT * FROM Tabla ORDER BY ID ASC",Conn)
Dim DS As New DataSet()
myDataAdapter.Fill(DS,"Tabla")
Datalist3.Datasource = DS
Datalist3.DataBind()
conn.close()
End Sub
De esta manera puedes llenar el html:
<form runat="server">
<asp:DataList id="DataList1" runat="server" repeatdirection="horizontal" repeatlayout="table" SelectedItemStyle-BackColor="#45aa47" >
<ItemTemplate>
<asp:LinkButton id="button1" runat="server" text='<%# Container.DataItem("Nombre")%>' CommandName="Edit" />
<p>
</ItemTemplate>
<SelectedItemTemplate>
<%# Container.DataItem("Campo1") %>
<br />
<br />
Domicilio: <%# Container.DataItem("Campo2")%>
</SelectedItemTemplate>
</asp:DataList>
</form>
Espero te sirva.