Ionic2: ion-input Issue with label default floating while i'm using [(ngModel)]

[bhandaribhumin3i]

While i’m using [(ngModel)] like

 <ion-item>
            <ion-label floating>Company Name</ion-label>
            <ion-input type="text" [(ngModel)]="complaintRaise.companyName" formControlName="companyName" name="companyName"></ion-input>
          </ion-item>

my array in ts file is:

complaintRaise: any = {
id: ‘’,
name: ‘’,
email: ‘’,
companyName: ‘’,
mobileNo: ‘’,
complaintRegarding: ‘’,
complaintText: ‘’,
isResolve: false,
addDate:’’
};