We Don’t Need No Stinking Mapping PI!



I’m blogging to:



The Yeah Yeah Yeahs


Show Your Bones

I just wanted to make sure eveyone was aware of this little fact.  First of all, in more recent builds (at leas the Feb CTP and beyond) you no longer use Mapping PIs to reference external assemblies.  Instead, you simply use the xmlns attribute by itself.  So using “old school” syntax you would have something like:


<?Mapping XmlNamespace=”wf” ClrNamespace=System.Windows.Forms” Assembly=”System.Windows.Forms” ?>
<Window x:Class=MappingPIChange.Window1
     xmlns=http://schemas.microsoft.com/winfx/2006/xaml/presentation
     xmlns:x=http://schemas.microsoft.com/winfx/2006/xaml
     xmlns:wf=wf >


Now you would loose the Mapping PI altogether and just use the xmlns attribute in the following manner:


<Window x:Class=MappingPIChange.Window1
xmlns=http://schemas.microsoft.com/winfx/2006/xaml/presentation
xmlns:x=http://schemas.microsoft.com/winfx/2006/xaml
xmlns:wf=clr-namespace:System.Windows.Forms;assembly=System.Windows.Forms“>


Furthermore, you do not need to do this at all for the things in WindowsFormsIntegration such as WindowsFormsHost.  These are now part of the standard schema and no longer need to be prefixed.


 


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