Change height and width of Flyout in UWP app

Question

I am using a Flyout element in my UWP app as:

<Flyout Placement="Full"/>

This opens the flyout in the centre of the app as desired. But I am unable to change the height and width of the flyout. How can this be done?

Answer 1

XAML equivalent to the accepted answer.
(Note: OP posted a Flyout - not a MenuFlyout):

 <Flyout> ... <Flyout.FlyoutPresenterStyle> <Style TargetType="FlyoutPresenter"> <Setter Property="MinWidth" Value="200" /> <Setter Property="MinHeight" Value="200" /> </Style> </Flyout.FlyoutPresenterStyle> ... </Flyout>

Answer 2

Something like the below code should work for what you need.

private void Flyout_Opened(object sender, object e)
{         
    Flyout f = sender as Flyout;
    Style s = new Windows.UI.Xaml.Style { TargetType = typeof(FlyoutPresenter) };
    s.Setters.Add(new Setter(MinHeightProperty, "200"));        
    s.Setters.Add(new Setter(MinWidthProperty, "200"));
    f.FlyoutPresenterStyle = s;
}

Answer 3

I want to add, that even if you resize the flyout, the content will be placed in a horizontal scrollviewer. This means, if you place a TextBox inside, it will enlarge infinitely depending on its content. The problem is also described on microsoft forums .

In order to fix, you can add:

<Flyout.FlyoutPresenterStyle>
    <!--Disable infinite flyout width-->
    <Style TargetType="FlyoutPresenter">
        <Setter Property="ScrollViewer.HorizontalScrollMode" Value="Disabled" />
        <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Disabled" />
    </Style>
</Flyout.FlyoutPresenterStyle>

This does not work with properties directly set to the Flyout for some reason .