i tried to rename [(ngModel)] using loop index i got Error: Cannot assign to a reference or variable!
<ion-row class="product-row active" *ngFor="let item of griddata;let i = index" align-items-center>
<ion-col col-4 >
<ion-thumbnail item-start>
<img src="http://localhost/smartvege/adminpanel/Assets/images/{{ item.image }}">
<ion-icon name="done-all"></ion-icon>
</ion-thumbnail>
</ion-col>
<ion-col col-8>
<h2>{{ item.title }} <span>- {{ item.titleurdu }}</span></h2>
<p>{{ item.saleprice }} - per {{ item.unit }}</p>
<ion-item class="grid-quantity">
<ion-label>Quantity</ion-label>
<ion-select [(ngModel)]="'test'+i" >
<ion-option *ngFor="let qtys of item.availableQTY.split(',')" value="{{qtys}} {{ item.unit }}">{{qtys}} {{ item.unit }} </ion-option>
</ion-select>
</ion-item>
</ion-col>
</ion-row>