Mega Code Archive

 
Categories / ASP.Net / Development
 

Use Trace to debug (VB net)

<%@ 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 _            SqlConnection("Server=foo;Database=pubs;Trusted_Connection=true")        Dim cmd As New SqlCommand("select * from authors", conn)       Try         Trace.Write("Opening connection")         Conn.Open()         DataGrid1.DataSource = cmd.ExecuteReader(CommandBehavior.CloseConnection)         DataGrid1.DataBind()       Catch ex As Exception         Trace.Warn(ex.Message)         Label1.Text = "Could not connect to the database - " & _                       "please try again later."       End Try     End Sub </script> <html> <head> </head> <body>     <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 -->     </form> </body> </html>