XperienceCommunity.PageTemplateUtilities 1.0.0

Xperience Page Template Utilities

Utilities to help quickly create and register MVC Page Templates in Kentico Xperience

Dependencies

This package is compatible with ASP.NET Core 3.1 → ASP.NET Core 5 and is designed to be used with .NET Core / .NET 5 Console applications integrated with Kentico Xperience 13.0.

How to Use?

1. First, install the NuGet package in your ASP.NET Core project

   dotnet add package XperienceCommunity.PageTemplateUtilities
   

2. Create an implementation of PageTypePageTemplateFilter for a given Page Type and register some Page Templates

   [assembly: RegisterPageTemplate(
       "Sandbox.HomePage_Default",
       "Home Page (Default)",
       typeof(BasicContentPageTemplateProperties),
       "~/Features/Home/Sandbox.HomePage_Default.cshtml")]
   
   public class HomePageTemplateFilter : PageTypePageTemplateFilter
   {
        public override string PageTypeClassName => "Sandbox.HomePage";
   }
   

3. Register all IPageTemplateFilter implementations with the IServiceCollection

   public class Startup
   {
       public void ConfigureServices(IServiceCollection services)
       {
           services.AddPageTemplateFilters(Assembly.GetExecutingAssembly());
       }
   }
   

How Does It Work?

The PageTypePageTemplateFilter is simplest if your Page Templates follow some conventions, but allows for full customization.

In the example below, Home Page (Default) will match the filter and be allowed for selection for Sandbox.HomePage
Page Types, but Home Page (Featured) does not have an Identifier (Sandbox_PageTemplate_HomePage_Featured)
that matches the prefix of Sandbox.HomePage_, so it will not be displayed for selection for
Sandbox.HomePage Page Types. It would need to be changed to Sandbox.HomePage_Featured to match the default filter, which follows the pattern of matching Page Templates with a Identifier prefix of $"{PageTypeClassName}_".

[assembly: RegisterPageTemplate(
    "Sandbox.HomePage_Default",
    "Home Page (Default)",
    typeof(BasicContentPageTemplateProperties),
    "~/Features/Home/Sandbox.HomePage_Default.cshtml")]

[assembly: RegisterPageTemplate(
    "Sandbox_PageTemplate_HomePage_Featured",
    "Home Page (Featured)",
    typeof(BasicContentPageTemplateProperties),
    "~/Features/Home/Sandbox_HomePage_Featured.cshtml")]

public class HomePageTemplateFilter : PageTypePageTemplateFilter
{
    public override string PageTypeClassName => HomePage.CLASS_NAME;
}

The filter can be overridden to allow you to match however you would like. It has a signature of:

Func<PageTemplateDefinition, PageTemplateFilterContext, string, bool> PageTemplateFilterBy

The customization below would match an Identifier like _Sandbox.HomePage-Default:

public class HomePageTemplateFilter : PageTypePageTemplateFilter
{
    public override string PageTypeClassName => HomePage.CLASS_NAME;

    public override Func<PageTemplateDefinition, PageTemplateFilterContext, string, bool> PageTemplateFilterBy { get; } =
        (definition, context, className) => definition.Identifier.StartsWith($"_{className}-", StringComparison.OrdinalIgnoreCase);
}

We could even skip using the className entirely and match against the definition or context with some hardcoded values,
but at that point it's probably best to implement the IPageTemplateFilter directly.

References

Kentico Xperience

• Filtering Page Templates