Missing template part for Orc.Controls.DropDownButton (ShouldCreateStyleForwarders=false)

[lipchev]

Please check all of the platforms you are having the issue on (if platform is not listed, it is not supported)

• WPF
• UWP
• iOS
• Android
• .NET Standard
• .NET Core

Component

Orc.Theming (4.0.2) / Orc.Controls.DropDownButton (4.0.8)

Version of Library

Orchestra.Examples.MahApps (6.0.4)

Version of OS(s) listed above with issue

Win 10, .net core 3.1

Steps to Reproduce

1. Open the MahApps.Shell example from the Orchestra package
2. Skip the call to StyleHelper.CreateStyleForwardersForDefaultStyles() by registering a NoForwardingThemingService (or simply commenting out this line)

Expected Behavior

(My guess):
The application should start with the implicit styles for all Orc.Controls (or there is a ResourceDictionary that can be imported for those)

Actual Behavior

[ERROR] [Orc.Controls.DropDownButton] [1] Can't find template part 'PART_Arrow'
Exception thrown: 'System.InvalidOperationException' in Orc.Controls.dll

I was able to fix the issue by manually setting the default style from Orc.Styles.DropDownButton

[GeertvanHorrik]

@ceo1647 what do you think?

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.