Removing Items from Gridview and refreshing the gridview without redirecting to the same Page.(Windows Phone 8.1 Xaml)

I have a gridview with a Usercontrol as its itemtemplate. In the Usercontrol I have a flyout attached to it using which the user can choose to delete the entry. After deletion how do I remove the entry from the gridview without redirecting to the samePage
and removing the backstack entry?
Please note that I am deleting/modifying the itemssource in the usercontrol's codebehind.

Hi Rajiv,
Where you have attached flyout. Which UI control. Is it border?? What type of UI control inside the DataTemplate?
As normal, when user clicked on the delete item, you can retrieve the selected entry as single item of an observablecollection and pass into your ViewModel class and remove it. 
The item will be removed at Runtime without refreshing or redirecting and there will a animation (transition) in the GridView when it removing.
If this content doesn't match your answer. Please ask me again.
Thank you

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