Moving my ViewModelBase to Portable Class Library

Question

I'm in the process of trying to use Portable Class Libraries to reduce my assembly per platform for my own MVVM framework.

So I currently have this code (inspired by @lbugnion MVVMLight)

        public static bool IsInDesignModeStatic
    {
        get
        {
            if (!_isInDesignMode.HasValue)
            {

#if SILVERLIGHT

                        _isInDesignMode = DesignerProperties.IsInDesignTool;

#else

                var prop = DesignerProperties.IsInDesignModeProperty;
                _isInDesignMode
                    = (bool)DependencyPropertyDescriptor
                                 .FromProperty(prop, typeof(FrameworkElement))
                                 .Metadata.DefaultValue;

                // Just to be sure
                if (!_isInDesignMode.Value
                    && Process.GetCurrentProcess().ProcessName.StartsWith("devenv", StringComparison.Ordinal))
                {
                    _isInDesignMode = true;
                }

#endif

            }

            return _isInDesignMode.Value;
        }
    }

}

But when I try to use this inside PCL it doesn't recognize DesignerProperties and FrameworkElement, etc. How should I overcome this?

Thanks!

Answer 1

You can do it like I do in the MVVM Light PCL fork:

http://mvvmlight.codeplex.com/.../GalaSoft.MvvmLight (NET35)/ViewModelBase.cs

http://mvvmlight.codeplex.com/.../GalaSoft.MvvmLight/Helpers/DesignerPlatformLibrary.cs

Uses Reflection to load up and invoke the appropriate calls.