Having trouble with Angular routing in a .NET MVC 5 application with Angular 6?

Question

Having trouble with Angular routing in a .NET MVC 5 application with Angular 6?

I have integrated an Angular 6 application into an existing .NET MVC 5 application. A fallback route was set up in the MVC app (RouteConfig.cs) to direct "unknown" routes to the Angular app's router module (app.routes.ts). However, it seems that the routes defined in the Angular app are not working as expected, and the associated components are not loading.

The development environment includes Visual Studio 2017 Enterprise 15.6.7, a standard .NET Web application for MVC 5.2.3.0 (not .NET Core), Node.js 8.11.3, npm 6.3.0, Typescript 2.9.2, Angular CLI 6.0.8, Angular 6.0.3, bootstrap 3.3.7, jquery 3.3.1, and runs on Windows 10 x64 OS.

Below is the RouteConfig.cs file for the MVC app with the catch-all route at the bottom:

 [c# code will be here]

Upon creating the Angular app using CLI, the package.json entry for Typescript defaults to version 2.7.2. The dependencies listed include various Angular modules along with other necessary libraries.

The app.routes.ts file defines simple routing for the application. It includes paths for displaying EventsListComponent and EventDetailsComponent.

 [typescript code will be here]

In the EventsAppModule, AppRoutingModule is imported to enable routing functionality. However, when trying to use routing in the main component/page of the app, EventsListComponent does not load properly. Alternatively, using a different tag allows EventsListComponent to display correctly.

Furthermore, accessing specific routes like http://localhost:39420/events or http://localhost:39420/events/1 results in blank pages being rendered instead of the expected content.

asp.net-mvc angular typescript model-view-controller routes

Answer 1

Answer №1

redirectTo requires the precise path for the router to navigate to, including a leading / before the specified route path.

To ensure that the EventsListComponent component loads correctly, update redirectTo: 'events' to redirectTo: '/events' in your route configuration.

Additionally, include pathMatch: 'full' in this route definition:

{
    path: '',
    redirectTo: '/events',
    pathMatch: 'full'
}

For further assistance, you can refer to this StackBlitz project.

Answer 2

redirectTo requires the precise path for the router to navigate to, including a leading / before the specified route path.

To ensure that the EventsListComponent component loads correctly, update redirectTo: 'events' to redirectTo: '/events' in your route configuration.

Additionally, include pathMatch: 'full' in this route definition:

{
    path: '',
    redirectTo: '/events',
    pathMatch: 'full'
}

For further assistance, you can refer to this StackBlitz project.

Answer 3

Answer №2

If there are no other routes that match the request, you need to catch all so Angular can handle it properly.

// This is a catch-all for when no other routes match the request; let Angular 2 router handle it...
            routes.MapRoute(
                name: "default",
                url: "{*url}",
                defaults: new { controller = "Home", action = "Index" } // The view that initializes Angular 2 app
            );

Make sure to remove the defaults as follows and avoid creating a Controller/View for Angular.

// This is a catch-all for when no other routes match the request; let Angular 2 router take care of it...
            routes.MapRoute(
                name: "default",
                url: "{*url}",// no view needed
            );

After executing the command:

ng build --prod

Copy the dist files into a directory such as 'myangularapp' within the root directory of your MVC application. Remember to update the base tag href attribute by running:

ng build --prod --base-href=/myangularapp/.

Next, create a web.config file in the directory containing your Angular files ('myangularapp'). See sample below.

<?xml version="1.0"?>
<configuration>
  <system.web></system.web>
  <system.webServer>
    <rewrite>
      <rules>
        <!--Redirect certain traffic to index page-->
        <rule name="Index Rule" stopProcessing="true">
          <match url=".*" />
          <conditions logicalGrouping="MatchAll">
            <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
          </conditions>
          <action type="Rewrite" url="index.html" />
        </rule>
      </rules>
    </rewrite>
  </system.webServer>
</configuration>

Answer 4

If there are no other routes that match the request, you need to catch all so Angular can handle it properly.

// This is a catch-all for when no other routes match the request; let Angular 2 router handle it...
            routes.MapRoute(
                name: "default",
                url: "{*url}",
                defaults: new { controller = "Home", action = "Index" } // The view that initializes Angular 2 app
            );

Make sure to remove the defaults as follows and avoid creating a Controller/View for Angular.

// This is a catch-all for when no other routes match the request; let Angular 2 router take care of it...
            routes.MapRoute(
                name: "default",
                url: "{*url}",// no view needed
            );

After executing the command:

ng build --prod

Copy the dist files into a directory such as 'myangularapp' within the root directory of your MVC application. Remember to update the base tag href attribute by running:

ng build --prod --base-href=/myangularapp/.

Next, create a web.config file in the directory containing your Angular files ('myangularapp'). See sample below.

<?xml version="1.0"?>
<configuration>
  <system.web></system.web>
  <system.webServer>
    <rewrite>
      <rules>
        <!--Redirect certain traffic to index page-->
        <rule name="Index Rule" stopProcessing="true">
          <match url=".*" />
          <conditions logicalGrouping="MatchAll">
            <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
          </conditions>
          <action type="Rewrite" url="index.html" />
        </rule>
      </rules>
    </rewrite>
  </system.webServer>
</configuration>

Having trouble with Angular routing in a .NET MVC 5 application with Angular 6?

Answer №1

Answer №2

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