Windows® Phone 8 Unleashed

PhoneApplicationPage Orientation Property

The PhoneApplicationPage includes an Orientation dependency property, which is shown in the following excerpt (take note of the set accessor):

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public PageOrientation Orientation{    get    {        return (PageOrientation)base.GetValue(OrientationProperty);    }    [EditorBrowsable(EditorBrowsableState.Never)]    set    {        if (Frame.IsInDesignMode())        {            base.SetValue(OrientationProperty, value);        }    }}

You see that changing the page orientation at runtime is not as straightforward as it might first appear. The Orientation property’s set accessor has an effect only at design time and not at runtime. At runtime, the Orientation property indicates ...