Utilize dynamic components to load varying data sets multiple times

Is there a way to dynamically load a component multiple times and pass data based on certain values so that it will display with real-time information?

I came across an example at the following link:

In this example, there is a messageComponent with a "message" property. We add a template in the hostComponent's HTML file like this:

<div style="text-align:center">
     <h1>
         Welcome to {{ title }}!
     </h1>
     <template #messagecontainer>
     </template>
 </div>

Instead of the template tag, the messageComponent will be inserted.

I am looking for a solution where we can iterate this template multiple times and dynamically pass different values for the "message" property in the messageComponent.

angulartypescriptangular-dynamic-components

Answer №1

Below outlines my method:

  • Start by setting up a container in your template to hold all messages
<ng-container #messageContainer></ng-container>
  • Create a function that can generate a component and place it in the view
private createComponent (compClass) {
   const compFactory = this.cfr.resolveComponentFactory(compClass);

   return this.messageContainer.createComponent(compFactory);;
 }
  • Load the component multiple times based on incoming data, keeping track of which components have been loaded so they can be destroyed when necessary for loading another dynamic component.
 private loadNewComponentList () {
   this.messages.forEach((msg, idx) => {
     this.destroyCompFromList(this.componentList[idx]);

     const comp = this.createComponent(componentMap[this._crtComp]);

     (comp.instance as any).message = msg;

     comp.changeDetectorRef.detectChanges();

     this.componentList[idx] = comp;
   });
 }

Take a look at this StackBlitz demo.

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