Fixed half of warnings having to do with allowing Null string objects. (#791)

src/Web/ViewModels/Manage/ChangePasswordViewModel.cs

@@ -7,18 +7,18 @@ public class ChangePasswordViewModel
     [Required]
     [DataType(DataType.Password)]
     [Display(Name = "Current password")]
-    public string OldPassword { get; set; }
+    public string? OldPassword { get; set; }
 
     [Required]
     [StringLength(100, ErrorMessage = "The {0} must be at least {2} and at max {1} characters long.", MinimumLength = 6)]
     [DataType(DataType.Password)]
     [Display(Name = "New password")]
-    public string NewPassword { get; set; }
+    public string? NewPassword { get; set; }
 
     [DataType(DataType.Password)]
     [Display(Name = "Confirm new password")]
     [Compare("NewPassword", ErrorMessage = "The new password and confirmation password do not match.")]
-    public string ConfirmPassword { get; set; }
+    public string? ConfirmPassword { get; set; }
 
-    public string StatusMessage { get; set; }
+    public string? StatusMessage { get; set; }
 }

src/Web/ViewModels/Manage/EnableAuthenticatorViewModel.cs

@@ -10,11 +10,11 @@ public class EnableAuthenticatorViewModel
     [StringLength(7, ErrorMessage = "The {0} must be at least {2} and at max {1} characters long.", MinimumLength = 6)]
     [DataType(DataType.Text)]
     [Display(Name = "Verification Code")]
-    public string Code { get; set; }
+    public string? Code { get; set; }
 
     [BindNever]
-    public string SharedKey { get; set; }
+    public string? SharedKey { get; set; }
 
     [BindNever]
-    public string AuthenticatorUri { get; set; }
+    public string? AuthenticatorUri { get; set; }
 }

src/Web/ViewModels/Manage/ExternalLoginsViewModel.cs

@@ -6,8 +6,8 @@ namespace Microsoft.eShopWeb.Web.ViewModels.Manage;
 
 public class ExternalLoginsViewModel
 {
-    public IList<UserLoginInfo> CurrentLogins { get; set; }
-    public IList<AuthenticationScheme> OtherLogins { get; set; }
+    public IList<UserLoginInfo>? CurrentLogins { get; set; }
+    public IList<AuthenticationScheme>? OtherLogins { get; set; }
     public bool ShowRemoveButton { get; set; }
-    public string StatusMessage { get; set; }
+    public string? StatusMessage { get; set; }
 }

src/Web/ViewModels/Manage/IndexViewModel.cs

@@ -10,11 +10,11 @@ public class IndexViewModel
 
     [Required]
     [EmailAddress]
-    public string Email { get; set; }
+    public string? Email { get; set; }
 
     [Phone]
     [Display(Name = "Phone number")]
-    public string PhoneNumber { get; set; }
+    public string? PhoneNumber { get; set; }
 
     public string? StatusMessage { get; set; }
 }

src/Web/ViewModels/Manage/RemoveLoginViewModel.cs

@@ -2,6 +2,6 @@
 
 public class RemoveLoginViewModel
 {
-    public string LoginProvider { get; set; }
-    public string ProviderKey { get; set; }
+    public string? LoginProvider { get; set; }
+    public string? ProviderKey { get; set; }
 }

src/Web/ViewModels/Manage/SetPasswordViewModel.cs

@@ -8,12 +8,12 @@ public class SetPasswordViewModel
     [StringLength(100, ErrorMessage = "The {0} must be at least {2} and at max {1} characters long.", MinimumLength = 6)]
     [DataType(DataType.Password)]
     [Display(Name = "New password")]
-    public string NewPassword { get; set; }
+    public string? NewPassword { get; set; }
 
     [DataType(DataType.Password)]
     [Display(Name = "Confirm new password")]
     [Compare("NewPassword", ErrorMessage = "The new password and confirmation password do not match.")]
-    public string ConfirmPassword { get; set; }
+    public string? ConfirmPassword { get; set; }
 
-    public string StatusMessage { get; set; }
+    public string? StatusMessage { get; set; }
 }

src/Web/ViewModels/Manage/ShowRecoveryCodesViewModel.cs

@@ -2,6 +2,6 @@
 
 public class ShowRecoveryCodesViewModel
 {
-    public string[] RecoveryCodes { get; set; }
+    public string[]? RecoveryCodes { get; set; }
 }