Discover the secret to accessing the complete object with navParams in Ionic 3 and Angular 4

Question

Discover the secret to accessing the complete object with navParams in Ionic 3 and Angular 4

At the moment, I am transferring a data object from one page to another (within a Modal).

I need to pass 8 parameters to the modal view.

this.firstParam = navParams.get("firstPassed");
this.secondParam = navParams.get("secondPassed");
.
.
.
this.eightParam = navParams.get("eightPassed");

Is there a way to retrieve the entire object data with just one call?

this.data = navParams.getAll(); //something along these lines

I have looked through the documentation but couldn't find a method for fetching the complete object data.

angular typescript ionic-framework ionic3

Answer 1

Answer №1

There's a better way to handle this situation. Instead of sending each piece individually, you can send all the data at once using the method below.

Note: Create a data transfer object named DtoMy

Dto-my.ts

export class DtoMy {
    firstPassed: string;
    secondPassed: string;

    //add any other properties here
}

Sending the Data

let dtoMy = new DtoMy();
dtoMy.firstPassed= 'firstPassed';
dtoMy.secondPassed= 'secondPassed';
//set values for any other properties

const myModal = this.modalCtrl.create('MyModalPage', { data: dtoMy });
myModal.onDidDismiss(data => { });
myModal.present();

Receiving the Data:

my-modal-page.ts

data :DtoMy;

constructor(private navParams: NavParams, private modalCtrl: ModalController) {
      this.data = this.navParams.get('data');
  }

Answer 2

There's a better way to handle this situation. Instead of sending each piece individually, you can send all the data at once using the method below.

Note: Create a data transfer object named DtoMy

Dto-my.ts

export class DtoMy {
    firstPassed: string;
    secondPassed: string;

    //add any other properties here
}

Sending the Data

let dtoMy = new DtoMy();
dtoMy.firstPassed= 'firstPassed';
dtoMy.secondPassed= 'secondPassed';
//set values for any other properties

const myModal = this.modalCtrl.create('MyModalPage', { data: dtoMy });
myModal.onDidDismiss(data => { });
myModal.present();

Receiving the Data:

my-modal-page.ts

data :DtoMy;

constructor(private navParams: NavParams, private modalCtrl: ModalController) {
      this.data = this.navParams.get('data');
  }

Answer 3

Answer №2

If you want to pass an entire object to the second page, follow these steps:

For sending:

constructor(public navCtrl: NavController, public navParams : NavParams){}

 public userObject = 
 {
  firstName : "john",
  lastName  : "smith"
 }

clickMe()
{
  this.navCtrl.push(SecondPage,this.userObject);
}

You need to import both NavController and NavParams, then use the push() method to navigate to the second page with the desired object.

In the second Page:

export class SecondPage 
{

 userObject;
 userName;

 constructor(public navCtrl: NavController, public navParams: NavParams){}

  ngOnInit()
  {
  this.userObject = this.navParams.data;
  this.userName   = this.userObject.firstName;
  console.log(this.userObject);
  }
}

To access the object in the second page, use the data member of NavParams. If you need to access the lastName, simply do

this.lastName=this.userObject.lastName

Answer 4

If you want to pass an entire object to the second page, follow these steps:

For sending:

constructor(public navCtrl: NavController, public navParams : NavParams){}

 public userObject = 
 {
  firstName : "john",
  lastName  : "smith"
 }

clickMe()
{
  this.navCtrl.push(SecondPage,this.userObject);
}

You need to import both NavController and NavParams, then use the push() method to navigate to the second page with the desired object.

In the second Page:

export class SecondPage 
{

 userObject;
 userName;

 constructor(public navCtrl: NavController, public navParams: NavParams){}

  ngOnInit()
  {
  this.userObject = this.navParams.data;
  this.userName   = this.userObject.firstName;
  console.log(this.userObject);
  }
}

To access the object in the second page, use the data member of NavParams. If you need to access the lastName, simply do

this.lastName=this.userObject.lastName

Answer 5

Answer №3

function initiatePage(nav: NavController, params: NavParams) {
console.log(params.data)
}

Answer 6

function initiatePage(nav: NavController, params: NavParams) {
console.log(params.data)
}

Discover the secret to accessing the complete object with navParams in Ionic 3 and Angular 4

Answer №1

Answer №2

Answer №3

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