如何隐藏Xamarin.Forms UWP中的默认工具栏按钮（三个点）

Question

I have a Xamarin.Forms UWP app with a <ContentPage.ToolbarItems> defined with two toolbarItems. In UWP this toolbar renders but displays an extra (or default) button with 3 dots that expands but does not contain any buttons. I want to remove this extra button.

I found some references on this problem but they didn't work for me:

• Change 3 dots of secondary toolbar to an icon in xamarin forms
• https://forums.xamarin.com/discussion/70814/how-to-remove-ellipsis-button-in-navigation-bar-for-uwp

Answer 1

As per the answer in the link that you mentioned in your post, did you tried to put below code in your App.Xaml of your UWP project:

<Application.Resources>
   <x:Double x:Key="AppBarExpandButtonThemeWidth">0</x:Double>
</Application.Resources>

Answer 2

Since Windows 10 Anniversary Edition ( so your project's min version is 14393 and target version is 14393 or greater ) there is a property on the CommandBar that you can use to toggle the visibility of the 3 dots/more button.

It's call OverflowButtonVisibilty and the docs are here: https://docs.microsoft.com/en-us/uwp/api/windows.ui.xaml.controls.commandbar.overflowbuttonvisibility

You can set it like so

<CommandBar OverflowButtonVisibility="Collapsed"></CommandBar>