Alright, so lately I have been working on a couple of ASP.NET(C#) projects. One thing I have seen is nothing is as useful as having a good error logger. Now, since I am still in the learning phases of .NET programming, I have been looking to a coworker, Joe Young, sort of as a mentor. He provided me with some code that has just immensely helped me. I have attached 2 files. one in VB, on in C#, they are Joe’s code. These are your App_Code files. They will create a detailed log of any errors in a file in a directory you specify. You specify the file in the attached files. To use them, you will insert the following code. (For the below VB examples, I used a website to convert it from my C#, as I was being lazy)
C#:
private void LogError(Exception errMessage)
{
errorlogger objLog = new errorlogger();
objLog.logerror(errMessage);
}
VB:
Private Sub LogError(ByVal errMessage As Exception)
Dim objLog As New errorlogger()
objLog.logerror(errMessage)
End Sub
This allows you to call the external errorlogger.
Now, to call it. The most useful place I have put these are in SQL connections/procedure calls. Here is an example from one of my programs.
C#
try
{
string strSQLSetCheckedOut = “exec CP_setCheckedOutTrue ” + HttpContext.Current.Session["sName"].ToString();
SqlCommand conSQLCommand = new SqlCommand(strSQLSetCheckedOut, conSQLConnection);
conSQLCommand.CommandTimeout = 120;
conSQLConnection.Open();
conSQLCommand.ExecuteNonQuery();
}
catch (Exception ex)
{
LogError(ex);
}
finally
{
conSQLConnection.Close();
}
VB:
Try
Dim strSQLSetCheckedOut As String = “exec CP_setCheckedOutTrue ” & HttpContext.Current.Session(”sName”).ToString()
Dim conSQLCommand As New SqlCommand(strSQLSetCheckedOut, conSQLConnection)
conSQLCommand.CommandTimeout = 120
conSQLConnection.Open()
conSQLCommand.ExecuteNonQuery()
Catch ex As Exception
LogError(ex)
Finally
conSQLConnection.Close()
End Try
Hopefully this little bit of code out there will help someone else out.
Tags: .net, ASP, ASP.NET, C#, C#.NET, Error Logger, Error Logging, Programming, VB, Visual Basic