Custom C# Helpers in AppCode in 2sxc 17+

To be SOLID and DRY, you will often want to create custom C# helpers in the /AppCode folder to share code you with your Razor files.

Tip

This is similar to shared C# files before, which were created using CreateInstance("path-to-c#file") but the major difference is that this new solution is strong-typed and provides IntelliSense.

Tip

This is different from Custom Services, which are more complex and have context information such as the Kit and MyContext objects.

Simple Example with Static Methods

Here is an example of such a file in /AppCode/MyHelpers.cs:

namespace AppCode
{
  public class MyHelpers
  {
    public static string MyHelperMethod(string input) => "Hello " + input;
  }
}

You can then use this in your Razor files like this:

@inherits Custom.Hybrid.RazorTyped
@using AppCode
@MyHelpers.MyHelperMethod("World")

Advanced Example with Class Instances Methods

Here is an example of such a file in /AppCode/MyHelpers.cs:

namespace AppCode
{
  public class MyHelpers
  {
    public string Name { get; set; }
    public string Greeting => "Hello " + Name;
  }
}

You can then use this in your Razor files like this:

@inherits Custom.Hybrid.RazorTyped
@using AppCode
@{
  var helper = new MyHelpers { Name = "World" };
  var result = helper.Greeting;
}

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History

• Introduced in v17.03