Notice (2018-05-24): bugzilla.xamarin.com is now in
Please join us on
Visual Studio Developer Community and in the
Mono organizations on
GitHub to continue tracking issues. Bugzilla will remain
available for reference in read-only mode. We will continue to work
on open Bugzilla bugs, copy them to the new locations
as needed for follow-up, and add the new items under Related
Our sincere thanks to everyone who has contributed on this bug
tracker over the years. Thanks also for your understanding as we
make these adjustments and improvements for the future.
Please create a new report for Bug 3698 on
GitHub or Developer Community if you have new
information to add and do not yet see a matching new report.
If the latest results still closely match this report, you can use the
In special cases on GitHub you might also want the comments:
GitHub Markdown with public comments
I am playing with XamlServices and ran into different problems.
I have saved an object to XAML with no problem.
I could also deserialize the XAML.
But when I add two XmlnsDefinition's I get the following exception "An element with the same key already exists in the dictionary"
Here is the reproducible code.
[assembly: XmlnsDefinition("http://www.riams.net/PresentationFramework", "Test")]
[assembly: XmlnsDefinition("http://www.riams.net/PresentationFramework", "Test.Bla")]
public static void Main (string args)
Test tst = new Test();
using (TextWriter writer = File.CreateText("/Users/olaf/test.xaml"))
public class Test
I get the same exception when I add the following line of code:
public static readonly DependencyProperty LeftProperty = DependencyProperty.Register("Left", typeof(double), typeof(myUIElement), new PropertyMetadata(0.0));