?
Solved

Raise Custom Exception

Posted on 2009-04-05
2
Medium Priority
?
1,873 Views
Last Modified: 2012-05-06
Hi,

In VB.NET, how can I raise custom exceptions? I am trying to doing something like

Try
    ...
    If FileNotFound Then
        Raise exFileNotFound(strFilename)
    End If
...

I would then expect to see the error message "The file xxxstrFilenamexxx was not found."

0
Comment
Question by:NicksonKoh
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 9

Expert Comment

by:Hawkvalley1
ID: 24074177
Just use the MsgBox to display a message when the file is not found:



If New FileInfo(strFilename).Exist Then
   ' do something
Else
   MsgBox("The File " & strFilename & " was not found!")
End If

Open in new window

0
 
LVL 86

Accepted Solution

by:
Mike Tomlinson earned 500 total points
ID: 24074198
Just use the "Throw" keyword:
http://msdn.microsoft.com/en-us/library/xhcbs8fz.aspx
http://msdn.microsoft.com/en-us/library/48ca3hhw.aspx

Something like:

    If FileNotFound Then
        Throw New Exception("The file " & strFilename & " was not found.")
    End If

0

Featured Post

Free Backup Tool for VMware and Hyper-V

Restore full virtual machine or individual guest files from 19 common file systems directly from the backup file. Schedule VM backups with PowerShell scripts. Set desired time, lean back and let the script to notify you via email upon completion.  

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction This article shows how to use the open source plupload control to upload multiple images. The images are resized on the client side before uploading and the upload is done in chunks. Background I had to provide a way for user…
Calculating holidays and working days is a function that is often needed yet it is not one found within the Framework. This article presents one approach to building a working-day calculator for use in .NET.
Monitoring a network: how to monitor network services and why? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the philosophy behind service monitoring and why a handshake validation is critical in network monitoring. Software utilized …
In this video, Percona Solution Engineer Dimitri Vanoverbeke discusses why you want to use at least three nodes in a database cluster. To discuss how Percona Consulting can help with your design and architecture needs for your database and infras…

771 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question