Dropdown Button in UWP

Question

I'm unable to use the DropDownButton in my UWP app. Is there an extension or reference that I need to use before the control name?

If not, is there an alternative of the control?
I can't use the ComboBox as I need the header text in the button, not above it.

By unable to use, what exactly do you mean? It's just not appearing? Have you addded Microsoft,UI,XAML to your toolbox? — McNline
– McNline, Commented Jun 28, 2019 at 11:45
@McNline I get the message "Dropdown button is not supported in UWP" — Bella Swan
– Bella Swan, Commented Jun 28, 2019 at 12:03

mm8 · Accepted Answer · 2019-06-28 12:16:24Z

2

Set the target version to 1809 or higher or install the Windows UI Library.

Don't fortget to add <XamlControlsResources xmlns="using:Microsoft.UI.Xaml.Controls"/> to your Application.Resources as explained in the docs.

Or add xmlns:controls="using:Microsoft.UI.Xaml.Controls" at the top of your XAML file and then add the control using <controls:DropDownButton />.

edited Jun 28, 2019 at 12:16

answered Jun 28, 2019 at 11:48

mm8

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3 Comments

mm8 Over a year ago

@BellaSwan: Did you add <XamlControlsResources xmlns="using:Microsoft.UI.Xaml.Controls"/> to your Application.Resources as explained in the docs? Or ` xmlns:controls="using:Microsoft.UI.Xaml.Controls"` at the top of your XAML file and then <controls:DropDownButton />?

Bella Swan Over a year ago

May I know how to set the target version?

mm8 Over a year ago

@BellaSwan: You get to select it when you create a new app. You can change it under Project->Properties->Application or by editing the .appxmanifest file.

SOuser · Accepted Answer · 2019-06-28 12:01:16Z

1

You need to target the proper minimum version. It should work without any additional settings if you set the min target to Windows 10, version 1809.

answered Jun 28, 2019 at 12:01

SOuser

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4 Comments

mm8 Over a year ago

WinUI provides backward compatibility.

SOuser Over a year ago

@mm8 it still requires some min version, though different one.

mm8 Over a year ago

Yes, the supported versions are listed in the docs. Upgrading to 1809 isn't required.

mm8 Over a year ago

Also, it's the target version that determines which APIs that are available when building.

McNline · Accepted Answer · 2019-06-28 12:22:05Z

0

Set Minimum Target version to 1809

Right click on Toolbox -> Choose Items -> Microsoft.UI.XAML

You should just be able to drag and drop like normal.

answered Jun 28, 2019 at 12:22

McNline

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