Unable to access property 'create' which is undefined

On my Ionic3 page, I am trying to trigger a modal open from within a click event function.

export class HomePage {

  ....
  ....
  ....

  loadPos() {
    var randomLocations = Microsoft.Maps.TestDataGenerator.getLocations(5, this.map.getBounds());

    for (let i = 0; i < 5; i++) {
      var pin = new Microsoft.Maps.Pushpin(randomLocations[i]);
      this.map.entities.push(pin);
      //Add a click event handler to the pushpin.
      Microsoft.Maps.Events.addHandler(pin, 'click', this.pushpinClicked);
    }
    console.log("pins added")

    pushpinClicked(e) {
      HomePage.prototype.openModal()
    }

    openModal() {
      const myModal = this.modal.create(ModalPage)
      myModal.present()
    }
  }

While running openModal() works when triggered by an ionic-button click, it throws an error when triggered by a pushpin click:

cannot read property 'create' of undefined

How can I successfully open the modal from the click event?

Answer №1

To make the necessary adjustment, simply update

pushpinClicked(e) {
    HomePage.prototype.openModal()
}

to

pushpinClicked(e) {
    this.openModal()
}

The reason for this change is that properties like this.modal are not found in the prototype object. You can observe an example of this by visiting: https://stackblitz.com/edit/angular-i7wwfb Run the code and view the console to see the distinction.

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