I have a ListView
and I edited its ItemContainerStyle
to modify some style but I don\'t know how to remove that annoying animation when you add an item
Beside the suggested ItemContainerTransitions removal, there's an additional animation you might want to remove.
In the ListViewItem template there's a transform animation called ContentPresenterTranslateTransform, it slides the item content into place. You can just remove that animation from template's storyboards.