"Ionic with Angular is facing an issue where ion-radio element cannot be set as checked by default

Having trouble selecting a radio button in a radio list. Can anyone help?

Any assistance would be greatly appreciated.

This is how I've been attempting it:

<div class="list">

      <ion-radio ng-repeat="item in goalTypeList"
                 ng-value="item.value"
                 ng-change="goalTypeChanged(item)"
                 ng-checked="item.selected"
                 ng-model="data.clientSide">
          {{ item.text }}
      </ion-radio>

  </div>

JS:

.controller('SettingsCtrl', function($scope, $ionicLoading) {

        $scope.goalTypeList = [
            { text: "Dials", value: "dials", selected: true },
            { text: "Conversations", value: "conversations", selected: false },
            { text: "Appointments", value: "appointments", selected: false },
            { text: "Orders", value: "orders", selected: false }
        ];

        $scope.data = {
            clientSide: 'ng'
        };

        $scope.goalTypeChanged = function(item) {
            console.log("Selected goalType, text:", item.text, "value:", item.value);
        };
javascriptangularjsradio-button

Answer №1

It appears that the value stored in data.clientSide does not match any of the values in the goalTypeList. Please update the value to align with one of the options listed below.

html:

<div class="list">

  <ion-radio ng-repeat="item in goalTypeList"
             ng-value="item.value"
             ng-change="goalTypeChanged(item)"
             ng-checked="item.selected"
             ng-model="data.clientSide">
      {{ item.text }}
  </ion-radio>

js:

  .controller('SettingsCtrl', function($scope, $ionicLoading) {

    $scope.goalTypeList = [
        { text: "Dials", value: "dials", selected: true },
        { text: "Conversations", value: "conversations" , selected: false  },
        { text: "Appointments", value: "appointments" , selected: false },
        { text: "Orders", value: "orders", selected: false  }
    ];

    $scope.data = {
        clientSide: 'appointments'
    };

    $scope.goalTypeChanged = function(item) {
        console.log("Selected goalType, text:", item.text, "value:", item.value);
    };

Answer №2

The value specified in 

$scope.data = { clientSide: 'ng' };
does not correspond to any of the options available in $scope.goalTypeList.

If the value of clientSide in $scope.data is changed to either dials, conversations, appointments, or orders, then one of the radio buttons should be automatically selected.

I trust this explanation clears things up for you.

Answer №3

As mentioned by @Marc Harry, ensure that your ng-value matches the value of ng-model. For a more dynamic approach (for instance, if the selected value is retrieved from the backend and may change), you can implement the following:

<div class="list">

      <ion-radio ng-repeat="item in goalTypeList"
                 ng-value="item.value"
                 ng-checked="item.selected"
                 ng-model="data.clientSide">
          {{ item.text }}
      </ion-radio>

</div> 

.controller('SettingsCtrl', function($scope, $ionicLoading) {

    $scope.goalTypeList = [
        { text: "Dials", value: "dials", selected: true },
        { text: "Conversations", value: "conversations" , selected: false  },
        { text: "Appointments", value: "appointments" , selected: false },
        { text: "Orders", value: "orders", selected: false  }
    ];

    $scope.data = {
        clientSide: getSelectedValue()
    };

    function getSelectedValue() {
        for(let i = 0; i < $scope.goalTypeList.length; i++) {
            if ($scope.goalTypeList[i].selected) {
                return $scope.goalTypeList[i].value;
            }
        }
    };

Answer №4

Another option is to utilize ion-select along with the ionChange event:

 <ion-select (ionChange)="validateSelection($event)"  interface="popover" 
  placeholder="Make a Selection" >
    <ion-select-option *ngFor="let item of dataList" [value]="item"> 
   {{item.choice}}</ion-select-option>
</ion-select>

In your TypeScript file:

validateSelection(event){ console.log(event.detail.value)}

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