A common quirk of Windows Phone’s Pivot control API is the lack of support of the Visibility property.
\nThe property is held by the Pivot class, but toggling it to Visible or Collapsed does not change the visibility of the PivotItem. In fact the only way to hide a PivotItem is to remove it from its parent Items collection.<\/p>\n
This is unfortunate because it is a common use-case to have a boolean property in your ViewModel that would be perfect to toggle the visibility of the PivotItem rather than writing code-behind or implementing a collection in your viewmodel for this scenario, polluting the viewmodel with unnecessary logic.<\/p>\n
Here is a little extension class adding an attached property IsDisplayed to PivotItem that you can bind that will dynamically add\/remove the PivotItem from its parent.<\/p>\n