CODEWITHSUNDEEP
asp.netasp.net-mvcasp.net-core-2.0
Anarion
Anarion

Reputation: 2534

Overwriting UrlHelper with a CustomUrlHelper - ASP.NET CORE 2.0

Is there a way to force my ASP.NET Core 2.0 app to use a custom UrlHelper I've written everywhere?

I have a class with custom logic

public class CustomUrlHelper : UrlHelper { ... }

I want it to be used everywhere, so that urls are generated according to our custom business rules.

Upvotes: 2

Views: 821

Answers (1)

Shaun Luttin
Shaun Luttin

Reputation: 141632

Create a CustomUrlHelper and a CustomUrlHelperFactory.

public class CustomUrlHelper : UrlHelper
{
    public CustomUrlHelper(ActionContext actionContext)
        : base(actionContext) { }

    public override string Action(UrlActionContext actionContext)
    {
        var controller = actionContext.Controller;
        var action = actionContext.Action;
        return $"You wrote {controller} > {action}.";
    }    
}

public class CustomUrlHelperFactory : IUrlHelperFactory
{
    public IUrlHelper GetUrlHelper(ActionContext context)
    {
        return new CustomUrlHelper(context);
    }
}

Then open your Statup.cs file and register the CustomUrlHelperFactory in the ConfigureServices method.

services.AddMvc();

services.AddSingleton<IUrlHelperFactory, CustomUrlHelperFactory>();

After doing that, your app will use the CustomUrlHelper everywhere. That includes calls to @Url.Action("Index", "Home") from a razor page.

Upvotes: 2

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