public override object ConvertFromString(string value, IValueSerializerContext context)
{
if (context == null)
{
return(base.ConvertFromString(value, context));
}
var nsr = (IXamlNamespaceResolver)context.GetService(typeof(IXamlNamespaceResolver));
var scp = (IXamlSchemaContextProvider)context.GetService(typeof(IXamlSchemaContextProvider));
return(scp.SchemaContext.GetXamlType(XamlTypeName.Parse(value, nsr)).UnderlyingType);
}
public object GetService(Type serviceType)
{
if (_baseContext != null)
{
return(_baseContext.GetService(serviceType));
}
else
{
return(null);
}
}
void LookupType(Type type)
{
var xamlType = SchemaContext.GetXamlType(type);
prefixLookup = prefixLookup ?? value_serializer_ctx?.GetService(typeof(INamespacePrefixLookup)) as INamespacePrefixLookup;
if (prefixLookup == null)
{
return;
}
prefixLookup.LookupPrefix(xamlType.PreferredXamlNamespace);
if (xamlType.TypeArguments != null)
{
for (int i = 0; i < xamlType.TypeArguments.Count; i++)
{
prefixLookup.LookupPrefix(xamlType.TypeArguments[i].PreferredXamlNamespace);
}
}
}
public static string GetStringValue(XamlType xt, XamlMember xm, object obj, IValueSerializerContext vsctx)
{
if (obj == null)
{
return(String.Empty);
}
if (obj is Type)
{
return(new XamlTypeName(xt.SchemaContext.GetXamlType((Type)obj)).ToString(vsctx?.GetService(typeof(INamespacePrefixLookup)) as INamespacePrefixLookup));
}
var vs = xm?.ValueSerializer ?? xt.ValueSerializer;
if (vs != null)
{
return(vs.ConverterInstance.ConvertToString(obj, vsctx));
}
// FIXME: does this make sense?
var vc = xm?.TypeConverter ?? xt.TypeConverter;
var tc = vc?.ConverterInstance;
if (tc != null && tc.CanConvertTo((ITypeDescriptorContext)vsctx, typeof(string)))
{
return((string)tc.ConvertTo((ITypeDescriptorContext)vsctx, CultureInfo.InvariantCulture, obj, typeof(string)));
}
if (obj is string || obj == null)
{
return((string)obj);
}
throw new InvalidCastException(String.Format("Cannot cast object '{0}' to string", obj.GetType()));
}
public override object ConvertFromString (string value, IValueSerializerContext context)
{
if (context == null)
return base.ConvertFromString (value, context);
var nsr = (IXamlNamespaceResolver) context.GetService (typeof (IXamlNamespaceResolver));
var scp = (IXamlSchemaContextProvider) context.GetService (typeof (IXamlSchemaContextProvider));
return scp.SchemaContext.GetXamlType (XamlTypeName.Parse (value, nsr)).UnderlyingType;
}