CODEWITHSUNDEEP
angulartypescriptnativescriptangular2-nativescript
phenric
phenric

Reputation: 317

Preserving data on back navigation router with Nativescript & Angular

I'm using Nativescript 6 with Angular 8 and I have an issue with the data binded values.

I have two pages. From the first page, I load the values with queryParams:

private getParamData: any;

public ngOnInit() {
    this.route.queryParams.subscribe((params) =>  {
        this.getParamData = <any> JSON.parse(params["DataList"]);
    }); 
}

When I move to the second page to return to the first one, the data are first correctly binded and then they are undefined, few seconds later.

How could I preserve the getParamData?

EDIT

Below a link to the Playground for a better understanding: https://play.nativescript.org/?template=play-ng&id=a8XYdf&v=19

When you tap on the Home Label then on the Second Label and finally go back, the Second Label becomes the Third

Upvotes: 0

Views: 313

Answers (1)

Manoj
Manoj

Reputation: 21908

Preserve the value of query param in a local variable. 

this.value = this.route.snapshot.queryParams.yourQueryParamName

Upvotes: 1

Related Questions