Angular button press

Question

Angular button press

Recently, I started learning Angular and came across a challenge that I need help with. Here is the scenario:

<button *ngIf="entryControlEnabled && !gateOpen" class="bottomButton red" (click)="openGate()">Open</button>
<button *ngIf="entryControlEnabled && gateOpen" class="bottomButton green" (click)="closeGate()">Close</button>

In my .ts file, I have the following logic:

if (data.IoNumber == config.IoNumberGates) {
 if (data.IoStatus == "DetectorDeactivated") {
  this.gateOpen = true;
  } else {
  this.gateOpen = false;
  }
}

I am looking to update

data.IoStatus == "DetectorDeactivated"

to

data.IoStatus == "DetectorActivated"

To better explain, here are my methods:

openGate(){
 this.data.IoStatus == "DetectorActivated"
}

closeGate(){
 this.data.IoStatus == "DetectorDeactivated"
}

If anyone can assist me with this issue, I would greatly appreciate it.

javascript angular typescript

Answer 1

Answer №1

If you need to toggle the variable this.gateOpen between true and false, and the methods this.gateOpen, openGate, and closeGate are within the same component, your functions should be structured like this:

openGate(){
 // this.data.IoStatus == "DetectorActivated";
 // this is incorrect as it is a comparison not an assignment
 this.data.IoStatus = "DetectorActivated";
}

closeGate(){
 // this.data.IoStatus == "DetectorDeactivated";
 // this is incorrect as it is a comparison not an assignment
 this.data.IoStatus = "DetectorDeactivated";
}

I hope this explanation is helpful.

if (data.IoNumber == config.IoNumberGates) {
    if (data.IoStatus == "DetectorDeactivated") {
      this.gateOpen = true;
    } else {
      this.gateOpen = false;
    }
}

Ensure that this code is triggered by the correct event, such as a click event. Otherwise, simply update the this.gateOpen variable directly in the functions like so:

openGate(){
    this.gateOpen = true;
}

closeGate(){
    this.gateOpen = false;
}

Answer 2

If you need to toggle the variable this.gateOpen between true and false, and the methods this.gateOpen, openGate, and closeGate are within the same component, your functions should be structured like this:

openGate(){
 // this.data.IoStatus == "DetectorActivated";
 // this is incorrect as it is a comparison not an assignment
 this.data.IoStatus = "DetectorActivated";
}

closeGate(){
 // this.data.IoStatus == "DetectorDeactivated";
 // this is incorrect as it is a comparison not an assignment
 this.data.IoStatus = "DetectorDeactivated";
}

I hope this explanation is helpful.

if (data.IoNumber == config.IoNumberGates) {
    if (data.IoStatus == "DetectorDeactivated") {
      this.gateOpen = true;
    } else {
      this.gateOpen = false;
    }
}

Ensure that this code is triggered by the correct event, such as a click event. Otherwise, simply update the this.gateOpen variable directly in the functions like so:

openGate(){
    this.gateOpen = true;
}

closeGate(){
    this.gateOpen = false;
}

Answer 3

Answer №2

Switching to a slide toggle can simplify the user interface. Here, I demonstrate how to integrate Angular Material Slide Toggle:

Snippet:

<mat-slide-toggle #approve (change)="toggle($event)" [labelPosition]="'before'">
            {{approve.checked? "Detector Activated": "Detector Activate"}}</mat-slide-toggle>

Controller:

toggle(event: MatSlideToggleChange) {
  console.log('Toggle fired');
  if(event.checked)
     this.data.IoStatus = "DetectorActivated";
  else
     this.data.IoStatus = "DetectorPaused";
}

Answer 4

Switching to a slide toggle can simplify the user interface. Here, I demonstrate how to integrate Angular Material Slide Toggle:

Snippet:

<mat-slide-toggle #approve (change)="toggle($event)" [labelPosition]="'before'">
            {{approve.checked? "Detector Activated": "Detector Activate"}}</mat-slide-toggle>

Controller:

toggle(event: MatSlideToggleChange) {
  console.log('Toggle fired');
  if(event.checked)
     this.data.IoStatus = "DetectorActivated";
  else
     this.data.IoStatus = "DetectorPaused";
}

Angular button press

Answer №1

Answer №2

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