AspNetCore.Docs/aspnetcore/diagnostics/mvc1003.md

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---
title: "MVC1003: Route attributes cannot be applied to page models"
description: "Learn about analysis rule MVC1003: Route attributes cannot be applied to page models"
author: pranavkm
monikerRange: '>= aspnetcore-3.1'
ms.author: riande
ms.date: 10/22/2021
no-loc: [Home, Privacy, Kestrel, appsettings.json, "ASP.NET Core Identity", cookie, Cookie, Blazor, "Blazor Server", "Blazor WebAssembly", "Identity", "Let's Encrypt", Razor, SignalR]
uid: diagnostics/mvc1003
---
# MVC1003: Route attributes cannot be applied to page models
| | Value |
|-|-|
| **Rule ID** |MVC1003|
| **Fix is breaking or non-breaking** |Non-breaking|
## Cause
An attribute implementing <xref:Microsoft.AspNetCore.Mvc.Routing.IRouteTemplateProvider> was applied to a Razor Page model.
### Rule description
Razor Page models are identified after routing is completed, and consequently cannot contribute a route. Applying a route attribute such as `Route` to a Razor Page model is not supported.
```csharp
[Route("/my-page-route")]
public class IndexModel : PageModel
{
public IActionResult OnGet() => Page();
}
```
## How to fix violations
Remove the route attribute from the page model. Routes can be specified for a Razor Page using an `@page` directive or by using conventions. For more information, see [custom routes in Razor Pages](<xref:razor-pages/index#custom-routes>).
## When to suppress warnings
Don't suppress warnings from this rule.