protected override void OnDetachingFrom(ContentPage bindable)
{
if (Device.RuntimePlatform == Device.UWP)
{
TreeView.ItemRightTapped -= TreeView_ItemRightTapped;
KeyDetectorGrid.KeyPressed -= KeyDetectorGrid_KeyPressed;
}
else
{
TreeView.ItemHolding -= TreeView_ItemHolding;
}
TreeView.ItemTapped -= TreeView_ItemTapped;
TreeView = null;
popupLayout = null;
KeyDetectorGrid = null;
ViewModel = null;
Node = null;
base.OnDetachingFrom(bindable);
}
protected override void OnAttachedTo(ContentPage bindable)
{
TreeView = bindable.FindByName <SfTreeViewExt>("treeView");
KeyDetectorGrid = bindable.FindByName <KeyDetector>("keyDetectorGrid");
ViewModel = bindable.BindingContext as FileManagerViewModel;
InitializePopupLayout();
if (Device.RuntimePlatform == Device.UWP)
{
TreeView.ItemRightTapped += TreeView_ItemRightTapped;
KeyDetectorGrid.KeyPressed += KeyDetectorGrid_KeyPressed;
}
else
{
TreeView.ItemHolding += TreeView_ItemHolding;
}
TreeView.ItemTapped += TreeView_ItemTapped;
base.OnAttachedTo(bindable);
}