Error Message .net
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 display an error message in an ASP.NET Web Application [duplicate] up vote 3 down vote favorite 1 I have an ASP.NET web application, and I wanted to know how I could display an error message box when an exception is thrown. For example, try { do something } catch { messagebox.write("error"); //[This isn't the correct syntax, just what I want to achieve] } [The message box shows the error] Thank you Duplicate of http://stackoverflow.com/questions/651592/how-to-display-an-error-message-box-in-a-web-application-asp-net-c/651601 c# asp.net custom-errors share|improve this question edited May 2 '12 at 16:39 Mr Lister 25k85381 asked Mar 16 '09 at 19:00 zohair 97692137 marked as duplicate by tvanfosson, Andrew Hare, TheTXI, BFree, cgreeno Mar 16 '09 at 19:09 This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question. Duplicate of stackoverflow.com/questions/651592/… –Perchik Mar 16 '09 at 19:03 If you edit the question to link to a duplicate, please put the link at the bottom so it doesn't alter the summary text on the main pages. –Joel Coehoorn Mar 16 '09 at 19:06 @ZOHAIR: You can see your previous questions and their answers at stackoverflow.com/users/70398/zohair –Ramesh Mar 16 '09 at 19:06 ... this is one time when 'Exact Duplicate' isn't going to get any argument. –John MacIntyre Mar 16 '09 at 19:06 That was the point of putting it at the top so people would recognize it as a duplicate and be able to close it more easily. –tvanfosson Mar 16 '09 at 19:07 | show 3 more comments 3 Answers 3 active oldest votes up vote 7 down vote accepted Roughly you can do it like that : try { //do something } catch (Exception ex) { string script = "scriptalert('" + ex.Message + "');"; if (!Page.IsStartupScriptRegistered("myErrorScript")) { Page.ClientScript.RegisterStartupScript("myEr
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 display an error message box in http://stackoverflow.com/questions/651716/how-to-display-an-error-message-in-an-asp-net-web-application a web application asp.net c# up vote 7 down vote favorite 2 I have an ASP.NET web application, and I wanted to know how I could display an error message box when an exception is thrown. For example, try { do something } catch { messagebox.write("error"); //[This isn't the correct syntax, just what I want to achieve] } [The message box shows the error] Thank you c# asp.net http://stackoverflow.com/questions/651592/how-to-display-an-error-message-box-in-a-web-application-asp-net-c-sharp web-applications messagebox share|improve this question edited Mar 16 '09 at 18:46 asked Mar 16 '09 at 18:22 zohair 97692137 add a comment| 8 Answers 8 active oldest votes up vote 11 down vote accepted You can't reasonably display a message box either on the client's computer or the server. For the client's computer, you'll want to redirect to an error page with an appropriate error message, perhaps including the exception message and stack trace if you want. On the server, you'll probably want to do some logging, either to the event log or to a log file. try { .... } catch (Exception ex) { this.Session["exceptionMessage"] = ex.Message; Response.Redirect( "ErrorDisplay.aspx" ); log.Write( ex.Message + ex.StackTrace ); } Note that the "log" above would have to be implemented by you, perhaps using log4net or some other logging utility. share|improve this answer edited Mar 16 '09 at 18:49 answered Mar 16 '09 at 18:25 tvanfosson 351k65571700 Upvoted for saying what I was trying to say. –Bobby Cannon Mar 16 '09 at 18:28 @tvanfosson - It is not that they cannot display message box on server side or client side. They should just avoid doing so. :) –Ramesh Ma
ASP.NET web-site, and would like the ability to conditionally show/hide runtime error messages depending on who the user visiting the site is.For a normal user visiting the site you want to be https://weblogs.asp.net/scottgu/Tip_2F00_Trick_3A00_-Show-Detailed-Error-Messages-to-Developers able to display a friendly error message like this when a runtime error occurs: But when someone within the “developers” security role of your application remotely accesses the site you want to instead show a more detailed exception stack trace error message about the problem without having to change any configuration data: The below post describes how to use ASP.NET’s role-based security architecture in conjunction error message with the Global.asax Application_Error event handlerto enable this. You can also download a sample I’ve built that shows how to implement this here.Some Background Discussion on Error Handling and ASP.NET Custom Error Pages:ASP.NET and .NET support a rich error-handling architecture that provides a flexible way to catch/handle errors at multiple levels within an application. Specifically, you can catch and handle a runtime exception with a class, error message .net within a page, or on the global application level using the Application_Error event handler within the Global.asax class. If a runtime exception isn’t handled/cancelled by one of these mechanisms, then ASP.NET’s Custom Error Page feature will kick-in, and an error page will be sent back to the browser accessing the application.ASP.NET’s Custom Error Page feature can be used to configure a “friendly error page” to be displayed to end-users in place of the standard “server error occurred” message sent back by ASP.NET. For example, the below web.config file section will cause remote users visiting the site to be redirected to a “friendlyErrorPage.htm” file anytime a runtime error occurs (note: HTTP 500 status code responses indicate runtime errors on the server):