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How To Show Error Messages In Asp.net

Showing Multiple Records per Row with the DataList Control (VB)8. For these reasons it is paramount that any error in the production environment is logged to some persistent store (such as a database) and that the developers are alerted of this However, if the user is a developer making an HTTP request that is being served locally on the machine where the code lives, additional error details will be displayed on the Learning resources Microsoft Virtual Academy Channel 9 MSDN Magazine Community Forums Blogs Codeplex Support Self support Programs BizSpark (for startups) Microsoft Imagine (for students) United States (English) Newsletter Privacy & cookies have a peek at this web-site

Viewing the ELMAH Log Viewing the ELMAH log is easy, but first you will create an unhandled exception that will be recorded in the ELMAH log. Examining the Events Associated with Inserting, Updating, and Deleting (C#)3. Using HoverMenu with a Repeater Control (C#)2. Using Existing Stored Procedures for the Typed DataSet's TableAdapters (C#)3. http://stackoverflow.com/questions/651592/how-to-display-an-error-message-box-in-a-web-application-asp-net-c-sharp

Using Existing Stored Procedures for the Typed DataSet's TableAdapters (VB)12. Customizing the Data Modification Interface (C#)6. Note You must press CTRL+F5 to display the page without breaking into the code to view the source of the error in Visual Studio. Dynamically Populating a Control (C#)2.

The Contact Manager Solution3. Determining What Files Need to Be Deployed (C#)3. Creating User Accounts (C#)3. Security Basics and ASP.NET Support (VB)5.

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 In this handler, the last exception is retrieved and reviewed. Scenario: Configuring a Test Environment for Web Deployment4. Using AJAX Control Toolkit Controls and Control Extenders (C#)3.

Testing the Strength of a Password (VB)Popup1. Visual Studio Web Deployment with SQL Server Compact - Deploying a Code-Only Update9. Add these entries to your web.config file to disable generic errors: Resources How to Use HTTP Detailed Errors in Link Listing WPF Azure Security Windows Server Data Commerce Server Atlas IIS7 Talks NuGet Windows Phone WPFE MVC Web Forms Ajax Tips and Tricks LINQ Hadoop ASP.NET Mobile Silverlight Web API

Fighting Bots (C#)2. check that Using CascadingDropDown with a Database (C#)3. Note the URL in the browser's address window: http://localhost:62275/Genre.aspx?ID=foo. Additionally, you have learned about the importance of safe error messages.

The "Using a Custom Error Page" section walks through creating a custom error page and configuring it to display in the event of an unhandled exception. Check This Out Sorry this wasn't helpful. Using TextBoxWatermark With Validation Controls (C#)3. Getting Started with Entity Framework 4.0 Database First - Part 56.

Creating a Custom AJAX Control Toolkit Control Extender (C#)4. Overview of Forms Authentication (VB)6. In this handler, the last exception is retrieved and reviewed. http://upintheaether.com/how-to/how-to-show-error-message-in-vb-net.php Disabling Actions during Animation (C#)8.

Unlocking and Approving User Accounts (C#)4. Nested Master Pages (C#)11. Part 6: ASP.NET Membership7.

Batch Deleting (C#)4.

MessageBox is for windows forms and cannot be used for web forms. Update the HttpCall method so that the code appears as follows: public string HttpCall(string NvpRequest) { string url = pEndPointURL; string strPost = NvpRequest + "&" + buildCredentialsNVPString(); strPost = strPost Creating a Numeric Up/Down Control with a Web Service Backend (C#)2. Collapsing and Expanding a Panel from JavaScript (VB)ColorPicker1.

Server.ClearError(); } } } When the error page is displayed, the Page_Load event handler is executed. C#VB Copy <%@ Page Language="C#" %> "); share|improve this answer answered Mar 16 '09 at 18:27 Perchik 1,92011021 add a comment| up

try { do something } catch (YourException ex) { errorLabel.Text = ex.Message; errorLabel.Visible = true; } share|improve this answer answered Mar 16 '09 at 19:04 Jhonny D. Adding Validation Controls to the DataList's Editing Interface (C#)5. Creating a Build Definition That Supports Deployment6. Using DynamicPopulate with a User Control And JavaScript (VB)FilteredTextBox1.

Deploying a Code Update9. Adding Validation Controls to the Editing and Inserting Interfaces (C#)5. Using TemplateFields in the GridView Control (C#)3. In other words, the default behavior is that the Exception Details YSOD is displayed to local visitors while the Runtime Error YSOD is shown to remote visitors.

Yes No Additional feedback? 1500 characters remaining Submit Skip this Thank you! Customizing Database Deployments for Multiple Environments4. Creating a Data Access Layer (VB)5. If Visual Studio asks you if you want to reload the modified Web.config file, click Yes.

The answer depends on how the website's configuration.