Hi Imad Mansour,
Thanks for using Syncfusion products,
Please download the attached sample application along with this forum to achieve your requirement.
In the sample we have handled the 'Restoring Event' which is fired when TileViewItem changes to Normal State. We have set "args.Cancel=true" in this event to restrict the TileViewItem entering the 'Normal' state.
Please let us know in case of any other queries.
Thanks and Regards,
Dinesh Kumar P
TileView_No.Normal(109281)_9edd9ef5.zip