Replace a component globally

The following example shows how to replace a component for the entire system. This example also shows how to replace the built-in Optimizely Content Management System (CMS) page tree with a custom page list component.

1. Declare a replacement component. It is important to use the definition name of the component that you want to replace.
   C#

   // A simple component implementation represented with a dijit content pane on the client side
           public class MyCustomPageList : ComponentBase
           {
               public MyCustomPageList() : base("dijit/layout/ContentPane")
               {
                   // Add "Hello World!" as non-persisted content to the dijit content pane
                   this.Settings.Add(new Setting("content", "Hello World!", false));
               }
           
               public override string DefinitionName => new PageTreeComponent().DefinitionName;
           }
   

2. Register the new component using the IOC container by implementing the ConfigureContainer method of EPiServer.ServiceLocation.IConfigurableModule in an initialization module.
   C#

   [InitializableModule]
           public class InitializationModule : IConfigurableModule
           {
               public void ConfigureContainer(ServiceConfigurationContext context)
               {
                   context.Services.AddTransient<IComponent, MyCustomPageList>();
               }
           
               public void Initialize(InitializationEngine context) { }
           
               public void Uninitialize(InitializationEngine context) { }
           
               public void Preload(string[] parameters) { }
           }
   

This replaces any creation of the PageTreeComponent with a new instance of the MyCustomPageList type that is created by the IOC container.

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Note

An editor has to make a change in edit view to able to see new component.