Home > C Exception > How To Get Error Number In C#

How To Get Error Number In C#

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us

C# Exception Hresult

Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow exception error code java Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How

C# Exception Number List

to get Exception Error Code in C# up vote 12 down vote favorite 4 try { object result = processClass.InvokeMethod("Create", methodArgs); } catch (Exception e) { // Here I was hoping to get an error code. } When I invoke the above get hresult from exception c# WMI method I am expected to get Access Denied. In my catch block I want to make sure that the exception raised was indeed for Access Denied. Is there a way I can get the error code for it ? Win32 error code for Acceess Denied is 5. I dont want to search the error message for denied string or anything like that. Thanks c# exception share|improve this question edited Jun 14 '14 at 2:23 iandotkelly 6,16083055 asked Aug 1 '11 at 0:00 Frank Q. c# error code list 91441935 1 Run the code, put a break point in your catch block, and use the debugger to look at the exception and see what information you have. –Joel Coehoorn Aug 1 '11 at 0:03 Alternatively, you could run the code without bothering to debug and print out the Exception type with GetType(). But Joel's answer will also do the trick for sure. –KyleM Aug 1 '11 at 0:07 You should only catch the exact type of exception you expect; catching Exception is almost always a bad code smell. –Bevan Aug 1 '11 at 1:06 @Bevan catching Exception is almost always good idea. Because you don't have to show a message at once — an every class shouldn't know does the app works with GUI or terminal. So you just have to save an exception ID to show it in a far far away. No need to catch every exception exclusively to do the same thing. At least it was the way I worked in C++. Now I'm work with C#, but don't see a reason that could make here a difference. –Hi-Angel Oct 3 '14 at 15:26 add a comment| 3 Answers 3 active oldest votes up vote 25 down vote accepted try this to check the exception and the inner one for a Win32Exception derived exception. catch (Exception e){ var w32ex = e as Win32Exception; if(w32ex == null) { w32ex = e.InnerException as Win32Exception; } if(w32ex != null) { int code = w32ex.Error

resources Windows Server 2012 resources Programs MSDN subscriptions Overview Benefits Administrators Students Microsoft Imagine Microsoft Student Partners ISV Startups TechRewards Events Community Magazine Forums Blogs Channel 9 Documentation APIs and reference Dev centers Samples

C# Exception Error Code List

Retired content We’re sorry. The content you requested has been removed. You’ll be c# exception set error code auto redirected in 1 second. MSDN Library MSDN Library MSDN Library MSDN Library Design Tools Development Tools and Languages Mobile

C# Hresult

and Embedded Development .NET Development Office development Online Services Open Specifications patterns & practices Servers and Enterprise Development Speech Technologies Web Development Windows Desktop App Development TOC Collapse the table of content Expand http://stackoverflow.com/questions/6893165/how-to-get-exception-error-code-in-c-sharp the table of content This documentation is archived and is not being maintained. This documentation is archived and is not being maintained. Complete Example for Error Handlers Other Versions Visual Studio 2010 .NET Framework 4 Visual Studio 2008 This code example includes elements for both page-level and application-level exception handling. Code Example Files The example consists of the following files: Web.config Global.asax Default.aspx ExceptionUtility (to https://msdn.microsoft.com/en-us/library/bb397417.aspx be put in the App_Code folder) GenericErrorPage.aspx HttpErrorPage.aspx Http404ErrorPage.aspx DefaultRedirectErrorPage.aspx Web.config The following example shows the Web.config file. The customErrors section specifies how to handle errors that occur with file types that are mapped to ASP.NET, such as .aspx, .asmx, and .ashx files. (In IIS 6.0 and in IIS 7.0 in classic mode, static content files such as .html and .jpg files are not mapped to ASP.NET.) The settings in the example customErrors section cause any unhandled HTTP 404 (file not found) errors to be directed to the Http404ErrorPage.aspx file. These HTTP 404 errors would occur if a request were made for an .aspx file, .asmx file, and so on and if the requested file did not exist. All other unhandled errors in ASP.NET files are directed to the DefaultRedirectErrorPage.aspx file. If static content files are not handled by ASP.NET, a request for a nonexistent .html or .jpg file does not cause a redirect to the Http404ErrorPage.aspx file. If you want ASP.NET to handle requests for all file types, you can configure IIS to map file-name extensions to ASP.NET. Note In the example, the mode attribute is set to "On" so that you can erro

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings http://programmers.stackexchange.com/questions/207093/exceptions-vs-errorcodes-when-working-with-devices and policies of this site About Us Learn more about Stack https://bytes.com/topic/c-sharp/answers/721207-get-error-number Overflow the company Business Learn more about hiring developers or posting ads with us Programmers Questions Tags Users Badges Unanswered Ask Question _ Programmers Stack Exchange is a question and answer site for professional programmers interested in conceptual questions about software development. Join them; it only takes c# exception a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Exceptions vs ErrorCodes when working with devices up vote 4 down vote favorite 2 Out team is at the cusp of a new project. One of the components at the boundary of exception error code the system is the component which interacts with a printer through an external COM component (referenced as a usual dll). The COM component returns integer codes if there were an error whilst command execution. Lets consider a concrete code. public class OperationException:Exception { public int ErrorCode { get; private set; } public string ErrorDescription { get; private set; } public OperationException(int errorCode, string errorDescription) { ErrorCode = errorCode; ErrorDescription = errorDescription; } } //The exception throwing way public class Provider1:IFrProvider { private readonly IDrvFR48 driver; public string GetSerialNumber() { //must read status before get SerialNumber int resultCode = driver.ReadEcrStatus(); if (resultCode != 0) { throw new OperationException(resultCode, driver.ErrorDescription); } return driver.SerialNumber; } } //The way of out parameters returning. public class Provider2 : IFrProvider { private readonly IDrvFR48 driver; public string GetSerialNumber(out Result result) { //must read status before get SerialNumber int resultCode = driver.ReadEcrStatus(); if (resultCode != 0) { result = new Result(resultCode, driver.ErrorDescription); return null; } result = new Result(0, null); return driver.SerialNumber; } } //The way of LastResult property setting. publi

get tips & solutions from a community of 418,570 IT Pros & Developers. It's quick & easy. Get Error Number P: n/a RP If an exception occurs, how to get the error number. I mean, is there anything like ex.number? Oct 10 '07 #1 Post Reply Share this Question 11 Replies P: n/a John Duval On Oct 10, 2:04 pm, RP http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet If replying to the group, please do not mail me too Oct 10 '07 #3 P: n/a Ignacio Machin \( .NET/ C# MVP \) Hi, "RP"

 

get error number from exception object c#

Get Error Number From Exception Object C p here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads c exception error number with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack p C Exception Hresult p Overflow Community Stack Overflow is a community of million programmers just like you helping each other Join them it only takes