System.Windows.Media.Animation.DoubleAnimation' cannot use default origin value of 'Infinity

[AndrzejKl]

What steps will reproduce this issue?

Just in clean MetroWindow designer add:

   <Controls:NumericUpDown Controls:TextBoxHelper.UseFloatingWatermark="True"
                           Controls:TextBoxHelper.Watermark="test"
                           Value="40" />   

then save changes, close designer's tab and open it again, it will show that error in designer. Without UseFloatingWatermark property, error doesn't show. So delete this property, save it, reopen it and error is gone.

Expected outcome

Environment

• MahApps.Metro v1.3.0.155
• Windows 10
• Visual Studio 2013 and 2015
• .NET Framework 4.5

[punker76]

@AndrzejKl fixed with 7b05d88