Custom attached properties in Windows Runtime Components?

Asked Mar 19 '16 at 19:22

Active Mar 19 '16 at 19:22

Viewed 277 times

I'm trying to use the c# class library https://github.com/MacawNL/WinRT-RichTextBlock.Html2Xaml in a C++ UWP project. To my limited knowledge, I have to build the project as a Windows Runtime Component instead of a class library to use it with C++/cx. The problem is, when I try to build it as a winmd, I get this error:

Error   WME1024 Type 'WinRT_RichTextBlock.Html2Xaml.Properties' contains externally visible field 'Windows.UI.Xaml.DependencyProperty WinRT_RichTextBlock.Html2Xaml.Properties.HtmlProperty'.  Fields can be exposed only by structures.    WinRT-RichTextBlock.Html2Xaml   C:\Users\zzz\Downloads\WinRT-RichTextBlock.Html2Xaml\RichTextBlockProperties.cs 40

How do I build this attached property so I can use it in a c++/cx UWP project?

asked Mar 19 '16 at 19:22

justanotherxl

Use a read-only property instead of a field – Raymond Chen Mar 19 '16 at 19:30
Thanks for responding. I'm not sure of the implementation of a read-only property for a dependencyproperty. Can you provide a code example? – justanotherxl Mar 19 '16 at 19:53
It's the same as a read only property for anything else. – Raymond Chen Mar 19 '16 at 20:10
1

Change *public* to *internal*. – Hans Passant Mar 19 '16 at 21:16
@RaymondChen Thanks, that ended up working. – justanotherxl Mar 21 '16 at 00:46

Custom attached properties in Windows Runtime Components?

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