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.

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

// 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;
        }

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

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

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