How To Get Error Number In Asp.net

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

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 Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow 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 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 WMI method I am expected https://msdn.microsoft.com/en-us/library/bb397417.aspx 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. 91441935 1 Run the code, put http://stackoverflow.com/questions/6893165/how-to-get-exception-error-code-in-c-sharp 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.ErrorCode; // do stuff } // do other stuff } As in the comments, you rea

pages, chances are your site is returning the incorrect HTTP status codes for the errors that your users are experiencing (hopefully as few as http://www.digitallycreated.net/Blog/57/getting-the-correct-http-status-codes-out-of-asp.net-custom-error-pages possible!). Sure, your users see a pretty error page just fine, but your users aren’t always flesh and blood. Search engine crawlers are also your users (in a sense), and they http://code.runnable.com/UhnRgS1sVKVdAAD4/error-handling-in-asp-net don’t care about the pretty pictures and funny one-liners on your error pages; they care about the HTTP status codes returned. For example, if a request for a page that was how to removed consistently returns a 404 status code, a search engine will remove it from its index. However, if it doesn’t and instead returns the wrong error code, the search engine may leave the page in its index. This is what happens if your non-existent pages don't return the correct status code! Unfortunately, ASP.NET custom error pages don’t return the correct error codes. Here’s how to get your typical ASP.NET custom error page configuration that goes into the Web.config: And here’s a Fiddler trace of what happens when someone request a page that should simply return 404: A trace of a request that should have just 404'd As you can see, the request for /ThisPageDoesNotExist returned 302 and redirected the browser to the error page specified in the config (/Pages/Error404), but that page returned 200, which is the code for a successful request! Our human users wouldn’t notice a thing, as they’d see the error page displayed in their browser, but any search engine crawler would think that the page existed just fine because of the 200 status code! And this problem also occurs for other status codes, like 500 (Internal Server Error). Clearly, we have an issue here. The first thing we need to do is stop the error pages from returning 200 and instead return the correct HTTP status code. This is easy to do. In the case of the 404 Not Found page, we can simply

Web Only Terminal Send Save Draft 126 mirang published 3 years ago #1 in .NET #1 in error-handling index.aspx index.aspx Drag a file in to add it. Drop it here, or in the file tree. index.aspx <%@ Page Language="C#"%>