[sys.xaml] serialize string value as string, do not try ValueConverter.

Fixed some xwt object serialization.

1 files changed, 2 insertions, 0 deletions

diff --git a/mcs/class/System.Xaml/System.Xaml/XamlWriterInternalBase.cs b/mcs/class/System.Xaml/System.Xaml/XamlWriterInternalBase.cs
index 0dad3a2fc93..5a384918413 100644
--- a/mcs/class/System.Xaml/System.Xaml/XamlWriterInternalBase.cs
+++ b/mcs/class/System.Xaml/System.Xaml/XamlWriterInternalBase.cs
@@ -241,6 +241,8 @@ namespace System.Xaml
 			// change XamlXmlReader too if we change here.
 			if ((value as string) == String.Empty) // FIXME: there could be some escape syntax.
 				return "\"\"";
+			if (value is string)
+				return (string) value;
 
 			var xt = value == null ? XamlLanguage.Null : sctx.GetXamlType (value.GetType ());
 			var vs = xm.ValueSerializer ?? xt.ValueSerializer;