Use Trace to debug ( : Trace « Development « ASP.Net

Use Trace to debug (

<%@ Page Language="VB" Debug="true" Trace="true" %>
<%@ import Namespace="System.Data" %>
<%@ import Namespace="System.Data.Sqlclient" %>
<script runat="server">

    Sub Button1_Click(sender As Object, e As EventArgs)
      Trace.Write ("Click", "Start")
      Dim conn As New _
      Dim cmd As New SqlCommand("select * from authors", conn)

        Trace.Write("Opening connection")

        DataGrid1.DataSource = cmd.ExecuteReader(CommandBehavior.CloseConnection)
      Catch ex As Exception
        Label1.Text = "Could not connect to the database - " & _
                      "please try again later."
      End Try
    End Sub

    <form runat="server">
        <asp:Button id="Button1" onclick="Button1_Click" runat="server" Text="Button"></asp:Button>
        <asp:DataGrid id="DataGrid1" runat="server"></asp:DataGrid>
        <asp:Label id="Label1" runat="server">Label</asp:Label>
        <!-- Insert content here -->


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