Question

C#: how to catch error code

Asked by: HStrix

Hello experts,
in my C# windows application (I'm using Visual Studio .Net 2003)
I need to catch the error code (sample 5 = Read-Only)  of the following statement:
---
System.Diagnostics.Process.Start("NET", "USE \\\\" + tmpMyComputer + " /user:" + tmpMyUserID + " " + tmpMyPassword);
---
This is equivalent to
---
Net Use \\<myComputer> /user:<myuserid> <mypassword>
---

If anyone knows how I can catch the error code created by this statement,
please supply an appropriate code snippet.

   Thank you very much for any help.

   HStrix

This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.

Subscribe now for full access to Experts Exchange and get

Instant Access to this Solution

  • Plus...
  • 30 Day FREE access, no risk, no obligation
  • Collaborate with the world's top tech experts
  • Unlimited access to our exclusive solution database
  • Never be left without tech help again

Subscribe Now

Asked On
2006-07-03 at 00:31:54ID21906506
Tags

catch

,

error

Topic

C# Programming Language

Participating Experts
1
Points
200
Comments
11

Trusted by hundreds of thousands everyday for fast, accurate and reliable tech support.

  • "The time we save is the biggest benefit of Experts Exchange to Warner Bros. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange." Mike Kapnisakis, Warner Bros.
  • "Our team likes having a resource that is more secure than just using Google and most experts using this service really know their stuff. It's nice to look here first versus using Google." Dayna Sellner, Lockheed Martin
  • "Anytime that I've been stumped with a problem, 9 out of 10 times Experts Exchange has either the accepted solution or an open discussion of the potential solution to the problem." Kenny Red, eBay Inc.

See what Experts Exchange can do for you.

Got a question?

We've got the answer.

Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.

Screenshot of Experts Exchange Knowledgebase

Need individual assistance?

Our experts are ready to help.

If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.

Screenshot of Experts Exchange Knowledgebase

Want to learn from the best?

Read articles from industry experts.

Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.

Screenshot of an Article

Working on a long term project?

Store your work and research.

Save solutions to your questions, answers you’ve discovered through searching plus helpful articles in your personal knowledgebase for easy future access.

Screenshot of Experts Exchange Knowledgebase

Access the answers to your technology questions today.

Subscribe Now

30-day free trial. Register in 60 seconds.

What Makes Experts Exchange Unique?

Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.

Trusted by the world's most respected brands.

image of each brand's logo

Faithfully serving IT professionals since 1996.

Experts Exchange Logo

Try it out and discover for yourself.

Subscribe Now

30-day free trial. Register in 60 seconds.

Related Solutions

  1. MyComputer-like items
    i want to put an item like Mycomputer or Networkneighborhood on the desktop. Some programs such as winamp 2.xx do it. As much as i understand it is something related to use of interfaces and ClassIds. When the user right click on MyComputer and select properties : explorer ...
  2. How to enable Visual Basic snippets in Visual Studio 2005
    I seem to have turned off code snippets for Visual Studio projects in Visual Studio 2005 (they still work fine if I'm working on a C# solution). Any idea how to turn them back on??? (i.e. if I type "prop" and press TAB nothing happens other than getting a tab inse...
  3. Creating our own code snippets in C#
    C# provides its own set of built-in code snippets(Edit->Intellisense->Insert Snippet) or (pressing ctrl+k,ctrl+x). How can I create my own custom code snippets and add them to the existing list of snippets?
  4. What's a SNIPPET file?
    I'm using VS 2005 this directory C:\Program Files\Microsoft Visual Studio 8\VB\Snippets\1033\windowsforms\Controls\RichTextBox contains files with SNIPPET extension FormatCharactersinBoldinaRichTextBox.snippet LoadanRTFFileintoaRichTextBoxControl.snippet ...
  5. What is the path of MyComputer and RecycleBin?
    Hi there; A very noob question...I am writing a program C# that deletes the desktop content other than MyComputer and ReCycleBin and the D: drive... I have to exclude MyComputer and ReCycleBin...I cannot find the paths of them under C:\Docs.Sett.\Desktop...or am i missing s...

Free Tech Articles

  1. WARNING: 5 Reasons why you should NEVER fix a computer for free.
    It is in our nature to love the puzzle. We are obsessed. The lot of us. We love puzzles. We love the challenge. We thrive on finding the answer. We hate disarray. It bothers us deep in our soul. W...
  2. SCCM OSD Basic troubleshooting
    SCCM 2007 OSD is a fantastic way to deploy operating systems, however, like most things SCCM issues can sometimes be difficult to resolve due to the sheer volume of logs to sift through and the dispe...
  3. Migrate Small Business Server 2003 to Exchange 2010 and Windows 2008 R2
    This guide is intended to provide step by step instructions on how to migrate from Small Business Server 2003 to Windows 2008 R2 with Exchange 2010. For this migration to work you will need the fo...
  4. Create a Win7 Gadget
    This article shows you how to create a simple "Gadget" -- a sort of mini-application supported by Windows 7 and Vista. Gadgets can be dropped anywhere on the desktop to provide instant information, ...
  5. Outlook continually prompting for username and password
    There have been a lot of questions recently regarding Outlook prompting for a username and password whilst using Exchange 2007. There are a few reasons why this would happen and I will try to cover t...
  6. Backup Exchange 2010 Information Store using Windows Backup
    There seems to be quite a lot of confusion around the ability to backup Exchange 2010 using the built in Windows Backup feature. This stems from the omission of this feature prior to Exchange 2007 s...

Cloud Class Webinars

  1. Avoiding Bugs in Microsoft Access
    Alison Balter takes and in-depth look at avoiding bugs in Access. In this webinar you will learn about using the immediate window to debug your applications, invoking the debugger, using breakpoints to troubleshoot, stepping through code, setting the next statement to execute, ...
  2. Top 10 Best New Features in Visio 2010
    Scott Helmers gives live demonstrations of the top 10 new features in Visio 2010. This webinar will teach you how to create compelling diagrams by adding shapes to the page with a single click, linking the shapes in a diagram to data in Excel (or SQL Server, or SharePoint), ...
  3. IT Consultant Business Secrets Revealed
    Michael Munger, Experts Exchange tech pro and IT consultant, pulls back the curtain on his very successful businesses and answers question on every IT consultant and business owner should know about. He shares secrets on what he did to solve the 5 most common problems in IT, ...
  4. Disaster Recovery and Business Continuity
    Quest CTO, Mike Billon, gives an overview of the steps involved in building a dunamic disaster recovery plan. Through case studies and an examination of software/hardware tooles for monitoring and testing, you'll gain a better understandin of where you are, where you want ...
  5. Organize Your Visio Diagrams with Containers and Lists
    Scott Helmers uses cross functional flowcharts, wireframe diagrams, data graphic legends and seating charts to teach you: how to ustilize all three new structured diagram components in Visio 2010, the best practices for organizeing shapes in previous version of Visio, how to organize ...
  6. How to Us Objects, Properties, Events and Methods in Microsoft Access
    Alison Dalter gives an in-depbth look at objects, properties, events and methods in Microsoft Access. In this webinar you will learn about using the object browser, referring to objects, working with properties and methods, working with object variables, understanding the ...

Join the Community

Give a Little. Get a Lot.

Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.

Join the Community

Answers

 

by: bruintjePosted on 2006-07-03 at 00:55:18ID: 17029473

Hi HStrix,
----------

if you use something like
using System.Diagnostics;


try
{
  Process MS = new Process();
  MS = Process.Start("NET", "USE \\\\" + tmpMyComputer + " /user:" + tmpMyUserID + " " + tmpMyPassword);
  //now you can lookup something that will be of use when looking at the autocomplete
  //MS.
  //you can read its error output or the exit state
}
catch (Exception ex)
{
    //do something here
}
finally
{

}

wrote this right in the box here so there could be something missing in syntax

----------
bruintje
share what you know, learn what you don't

 

by: HStrixPosted on 2006-07-03 at 02:32:23ID: 17029841

Thank you bruintje,
my code looks now as follows:
---
Process MS = new Process();
int tmpErrIntCode = 0;
string tmpErrCatched = "";
try
{
  //Process MS = new Process();
  MS = Process.Start("NET", "USE \\\\" + tmpMyComputer + " /user:" + tmpMyUserID + " " + tmpMyPassword);
  //now you can lookup something that will be of use when looking at the autocomplete
  //MS.
  //you can read its error output or the exit state
  tmpErrIntCode = MS.ExitCode; // <= result = 2 ; where to find exit state?
}
catch (Exception ex)
{
    //do something here
    tmpErrCatched = ex.ToString();  // is not entered
}
finally
{
   //
}
---
Executing the equivalent Net-Use-command leads to error 1385.
I'ld expect this error..

 

by: bruintjePosted on 2006-07-03 at 02:57:24ID: 17029921

sorry there is no exit state, i've looked at the thread properties a few weeks ago trying to get better grip on process running through process.start but wasn't able to find a good handle on it [using a third party interface with sendkeys]

you can look at the thread like
using System.Threading;

                Thread myThread = MS.Threads(0);
                myThread. --> use intellisense here

you can even check the threadstate but it will not give you a reason for exit or wait

                myThread.ThreadState = System.Threading.ThreadState.Aborted;

but i can't seem to find something like the exit  reason

 

by: HStrixPosted on 2006-07-03 at 03:18:25ID: 17029981

So, I can forget this?

Is there a way to use lastdllerror ...

 

by: bruintjePosted on 2006-07-03 at 03:48:46ID: 17030073

not sure but looking at the ExitCode

http://msdn2.microsoft.com/en-us/library/system.diagnostics.process.exitcode.aspx

there is something interesting about enable raising events on the process so this way you can wait for the process to exit and check the exitcode, they that in a do loop in the msdn sample it could give you something to have a hold on the process exit state

 

by: HStrixPosted on 2006-07-03 at 04:10:39ID: 17030127

Thanks, but it seems that there is no exit state either...
and the exit code is still 2.

 

by: bruintjePosted on 2006-07-03 at 04:20:16ID: 17030168

exit code 0 is most of the time a normal exit do you have no list of exitcodes for net use

btw if i read this correctly there are no errorcodes for net.exe

http://groups.google.com/group/alt.msdos.batch/browse_frm/thread/61a346ad5331c064/f689bc2efcb2d1c6

 

by: HStrixPosted on 2006-07-03 at 04:43:04ID: 17030254

Thanks,
my new idea is to read the output of net.exe.

 

by: bruintjePosted on 2006-07-03 at 04:56:46ID: 17030295

if it will write to the standard out put you can indeed read it through the MS class

 

by: HStrixPosted on 2006-07-03 at 05:19:06ID: 17030376

If it is used as a console call the output gets displayed in the console window.

Since this is event controlled(?) there are new thoughts required...
I expect a huge effort because I've never done this before..

 

by: HStrixPosted on 2006-07-03 at 06:40:05ID: 17030840

For the time-being I use now the following working code
---
try
{
MS.StartInfo.UseShellExecute=false;
MS.StartInfo.RedirectStandardOutput=true;
MS.StartInfo.RedirectStandardError=true;
MS.StartInfo.CreateNoWindow=true;
MS.StartInfo.FileName  = "NET";
MS.StartInfo.Arguments = "USE \\\\" + tmpMyComputer + " /user:" + tmpMyUserID + " " + tmpMyPassword;
MS.StartInfo.WorkingDirectory=WorkingDirectory;
MS.Start();
//
errorNet  = "";
do
  {
    if (!MS.HasExited)
       {
          MS.Refresh();
        }
  }
while (!MS.WaitForExit(1000));
//
errorNet = MS.StandardError.ReadToEnd();
}
catch (Exception ex)
{
  //
}
finally
{
  //
  if (MS != null)
  {
    MS.Close();
  }
  //
  if (errorNet != "")
  {
    // message box
  }
}
---
This code cannot be the final solution,
I think the only way is to create a private class for the net use command.

Your help was welcome and helpful..

20120131-EE-VQP-002

3 Ways to Join

30-Day Free Trial

The Experts

98% positive feedback on 31,087 answers since March 2000. angeliii is a Microsoft Most Valuable Professional for his work with MS SQL Server & Develoment.

He has also proven his knowledge of Visual Basic Programming, PHP Scripting and Oracle Databases.

The Experts

97% positive feedback on 10,752 answers since July 2000. lrmoore has more than 18 years experience in the networking industry.

The six-time Mircosoft MVPs specialties include firewalls, virtual private networking, and network management.

Testimonials

"...and excellent source for support... Kind of like having your very own IT dept." Electriciansnet

Testimonials

"I was apprehensive at signing up at first. However... it has already made my life as an IT administrator much easier." JaCrews

Testimonials

"WOW! You guys have great, active, and knowledgeable people on here." moore50

Business Clients

Business Clients

In the Press

"If you’ve got a question... Experts Exchange can supply an answer.”

In the Press

"...an invaluable aid for both IT professionals and those who require tech support."

In the Press

"where IT professionals provide quick answers on just about any topic"

Business Account Plans

Loading Advertisement...