Replacement for @helper in ASP.NET Core

Question

So far, i don\'t think ViewComponent solves that neither does TagHelper. Is there any replacement to this? Something that takes parameters and retu

Answer 1

I'd like to expand on @Alexaku's answer and show how I've implemented a helper like function. It's only useful on one specific page but it allows you to execute a piece of razor code multiple times with input parameters. The syntax is not great but I've found it very useful in the absence of razor's @helper function. First declare some kind of Dto that will contain the input parameters into the function.

@functions {
   private class Dto
   {
      public string Data { get;set; }
   }
}

Then declare the razor function. Note that the displayItem value can be multi-line and also note that you access the Dto variable using the @item.

@{
   Func displayItem = @@item.Data;
}

Then when you want to use the razor template you can call it like the following from anywhere in the page.

   @displayItem(new Dto {Data = "testingData1" });


   @displayItem(new Dto {Data = "testingData2" });