What methods could I utilize to implement an observable on a checkbox to check its status and subsequently refresh my application page?

Hello, I have a question. I am trying to implement a feature in my application where the page automatically reloads every 1 minute if a checkbox is selected. If the checkbox is not selected, the automatic page update should be disabled. I have been attempting to achieve this using JavaScript and the change event, but I am facing difficulties making the page reload automatically with setTimeout. Is there another way to accomplish this using observables? I am still relatively new to Angular.

Below is the code I have implemented so far:

HTML Code

<mat-checkbox (change)="checkCheckBoxvalue($event)">Check me!</mat-checkbox>

TypeScript Code

checkCheckBoxvalue(event){
      console.log(event.checked)
      if (event.checked){
         this.com=true
        }
      else{
        this.com=false
      }  

      if (this.com) {
        console.log("The checkbox is active")
        setInterval(function(){
             // ... function to reload my page
          }, 1000);
      }

      else {
        console.log("The checbox is not active")
      }

UPDATE

To get the desired result, an arrow function must be added:

loadpaginator(): any {
      this.dataSource.loadData(
          this.id_interface ? this.id_interface.toString() : undefined,   
          this.EquipoOrigenValue ? this.EquipoOrigenValue : undefined,
          this.LocalidadOrigenValue ? this.LocalidadOrigenValue : undefined,
          this.VendedorValue ? this.VendedorValue : undefined,
          this.id_prtg ? this.id_prtg.toString() : undefined,
          this.CategoriaOrigenValue ? this.CategoriaOrigenValue : undefined,
          this.EquipoDestinoValue ? this.EquipoDestinoValue : undefined,
          this.OspfOperValue ? this.OspfOperValue : undefined,
          this.OspfAdminValue ? this.OspfAdminValue : undefined,
          this.ServicioValue ? this.ServicioValue : undefined,
          this.TipoOrigenValue ? this.TipoOrigenValue : undefined,
          this.PuertoOrigenValue ? this.PuertoOrigenValue : undefined,
          this.paginator.pageSize,
          (this.paginator.pageIndex + 1)
      );
    }

With this implementation, my table gets updated periodically depending on the specified interval in the setInterval() function:

.......
      if (event) {
        console.log("The checkbox is active");
        this.timeout = setInterval(() => {
          this.loadpaginator()
        }, 5000);
      }
.....

Answer №1

One effective method to achieve this is as follows:

<mat-checkbox [(ngModel)]="isChecked" 
               (change)="checkCheckBoxvalue(isChecked)">Check me!</mat-checkbox>

Include the variable timeout at the beginning

timeout;

checkCheckBoxvalue(event: any){ 
if (event) {
  console.log("The checkbox is active");
  this.timeout = setTimeout(function(){
    // ... function to reload my page
  }, 1000);
}
else {
  console.log("The checbox is not active");
  clearTimeout(this.timeout);
}

If you wish to reload the page, in the future, Router will be your go-to solution. It is considered the most efficient way of achieving this task.

Best of luck!

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