When I portrait mode *ngIf it hides values what I want but when I make the device landscape it's showing empty cards between true values.
<ion-col sizeLg="4" sizeMd="4" sizeXs="12" *ngFor="let order of orders">
<ion-card *ngIf="order.status =='CL'">
<ion-card-title>
<h4>{{order.title}}</h4>
</ion-card-title>
<ion-card-content>
<ion-item>
<h4>{{order.description | filter:[200, '...']}}</h4>
</ion-item>
</ion-card-content>
<ion-button type="button" color="danger">Canceled</ion-button>
<ion-button type="button" color="primary">Delivered</ion-button>
</ion-card>
</ion-col>
The problem is that you're hiding the card but you're still leaving an empty column. Please try by hiding both the card and the column instead:
<ng-container *ngFor="let order of orders">
<ion-col sizeLg="4" sizeMd="4" sizeXs="12" *ngIf="order.status =='CL'">
<ion-card >
...
</ion-card>
</ion-col>
</ng-container>