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I have a custom Errors controller that looks like this:
public class ErrorsController : BaseController
{
public ActionResult RaiseError(string error = null)
{
string msg = error ?? "An error has been thrown (intentionally).";
throw new Exception(msg);
}
public ActionResult Error404()
{
Response.TrySkipIisCustomErrors = true;
Response.StatusCode = (int)HttpStatusCode.NotFound;
return View();
}
public ActionResult Error500()
{
Response.TrySkipIisCustomErrors = true;
var model = new Models.Errors.Error500()
{
ServerException = Server.GetLastError(),
HTTPStatusCode = Response.StatusCode
};
return View(model);
}
}
My Errors500.cshtml looks like this:
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>Error500</title>
</head>
<body>
<div>
An internal error has occurred.
@if (Model != null && Model.ServerException != null && HttpContext.Current.IsDebuggingEnabled)
{
<div>
<p>
<b>Exception:</b> @Model.ServerException.Message<br />
</p>
<div style="overflow:scroll">
<pre>
@Model.ServerException.StackTrace
</pre>
</div>
</div>
}
</div>
</body>
</html>
and my web.config has my error handlers specified as such:
<system.webServer>
<httpErrors errorMode="Custom" existingResponse="Replace" >
<remove statusCode="404" subStatusCode="-1" />
<error statusCode="404" subStatusCode="-1" responseMode="ExecuteURL" path="/Errors/Error404" />
<remove statusCode="500" subStatusCode="-1" />
<error statusCode="500" subStatusCode="-1" responseMode="ExecuteURL" path="/Errors/Error500" />
</httpErrors>
The problem is: everytime I call /errors/raiseerror to test my 500 handling; I'm redirected to errors/error500 (fine). However, the exception data isn't rendered on the page because the Server.GetLastError() call returns null instead of the exception thrown by RaiseError().
What's the best way to handle a custom 500 error page where that custom page can render out the exception details as well?
786
The easiest way to go about this is:
Use MVC's built-in support to handle Exceptions. By default MVC uses HandleErrorAttribute that is registered in App_Start\FilterConfig.cs:
public static void RegisterGlobalFilters(GlobalFilterCollection filters)
{
filters.Add(new HandleErrorAttribute());
}
Now make sure you have a view called Error in Views\Shared folder. The view by default has model of type HandleErrorInfo with a property named Exception. You can show the Exception message and other details if you want like this:
Error.cshtml
@model HandleErrorInfo
@if(Model != null)
{
@Model.Exception.Message
}
You can customize the Error.cshtml page the way you want...
129
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