Set ErrorViewModel in ConfirmEmail (#180)

Addresses #80

src/Microsoft.DotNet.Web.ProjectTemplates/content/StarterWeb-CSharp/Areas/Identity/Controllers/AccountController.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Linq;
 using System.Security.Claims;
 using System.Text.Encodings.Web;
@@ -15,6 +16,7 @@ using Company.WebApplication1.Controllers;
 using Company.WebApplication1.Identity.Models;
 using Company.WebApplication1.Identity.Models.AccountViewModels;
 using Company.WebApplication1.Identity.Services;
+using Company.WebApplication1.Models;
 
 namespace Company.WebApplication1.Identity.Controllers
 {
@@ -346,7 +348,14 @@ namespace Company.WebApplication1.Identity.Controllers
                 throw new ApplicationException($"Unable to load user with ID '{userId}'.");
             }
             var result = await _userManager.ConfirmEmailAsync(user, code);
-            return View(result.Succeeded ? "ConfirmEmail" : "Error");
+            if (result.Succeeded)
+            {
+                return View("ConfirmEmail");
+            }
+            else
+            {
+                return View("Error", new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
+            }
         }
 
         [HttpGet]

src/Microsoft.DotNet.Web.ProjectTemplates/content/StarterWeb-CSharp/Areas/Identity/Models/ErrorViewModel.cs

@@ -1,11 +0,0 @@
-using System;
-
-namespace Company.WebApplication1.Identity.Models
-{
-    public class ErrorViewModel
-    {
-        public string RequestId { get; set; }
-
-        public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
-    }
-}