What is ExceptionHandler for Global Error Pages in .net 8?

Question

I am looking for a good example of using ExceptionHandler for Global Error Pages in .net 8? anyone a help me on this. Appricated !

Sharp GPT · Answer

Absolutely I'd be happy to help you understand ExceptionHandler for Global Error Pages in .NET 8 and provide a practical example for better clarity. In .NET 8 the ExceptionHandler is used to manage exceptions that occur during the execution of an application. When an unhandled exception arises the ExceptionHandler can capture it and take appropriate actions such as redirecting the user to a custom error page logging the error details or notifying the administrator. Here's a simple example of how you can set up a Global Error Page using ExceptionHandler in .NET 8: 1. Create Custom Error Page : First create a custom error page in your project. This page will be displayed to users when an unhandled exception occurs. 2. Configure ExceptionHandler : In your Startup.cs file inside the `Configure` method add the following code to configure the ExceptionHandler: app.UseExceptionHandler(errorApp => { errorApp.Run(async context => { context.Response.StatusCode = (int)HttpStatusCode.InternalServerError; context.Response.ContentType = text/html; // Display your custom error page await context.Response.WriteAsync( An error occurred. Please try again later. ); }); }); 3. Test the Error Handling : To test the error handling you can intentionally throw an exception in your controller or service. When the exception is unhandled the user should be redirected to the custom error page you've created. By following these steps you can effectively use ExceptionHandler to set up Global Error Pages in your .NET 8 application. This ensures a better user experience by gracefully handling unexpected errors. I hope this example gives you a practical understanding of how ExceptionHandler can be used for Global Error Pages in .NET 8. If you have any further questions or need clarification feel free to ask!

Sangeetha S · Answer

Global exception handler is handle the exception globally in your application. how to use the ExceptionHandler middleware for global error pages in a .NET 8 application. Execute the command in command line: dotnet new mvc -n GlobalErrorHandlingExample cd GlobalErrorHandlingExample Startup.cs or Program.cs var builder = WebApplication.CreateBuilder(args); // Add services to the container. builder.Services.AddControllersWithViews(); var app = builder.Build(); // Configure the HTTP request pipeline. app.UseExceptionHandler(/Home/Error); // Redirect to Error action in HomeController // Other middleware app.UseStaticFiles(); app.UseRouting(); app.UseAuthorization(); app.MapControllerRoute( name: default pattern: {controller=Home}/{action=Index}/{id?}); app.Run(); HomeController public class HomeController : Controller { public IActionResult Index() { return View(); } public IActionResult Error() { return View(); } } Create an Error View Error.cshtml @{ ViewData[Title] = Error; } An Error Occurred Sorry something went wrong. Please try again later.