generated Form fixed for ref-elements

Author: wetzel-fabian

XmlSchemaClassGenerator.Tests/XmlTests.cs

@@ -1810,10 +1810,10 @@ public void RefTypesGetNoXmlElementAttributeTest()
             Assert.NotNull(classType);
 
             var directProperty = Assert.Single(classType.GetProperties().Where(p => p.Name == "Direct"));
-            Assert.NotEmpty(directProperty.GetCustomAttributes<XmlElementAttribute>());
+            Assert.Equal(XmlSchemaForm.Unqualified, directProperty.GetCustomAttributes<XmlElementAttribute>().FirstOrDefault()?.Form);
 
             var viaRefProperty = Assert.Single(classType.GetProperties().Where(p => p.Name == "ViaRef"));
-            Assert.Empty(viaRefProperty.GetCustomAttributes<XmlElementAttribute>());
+            Assert.Equal(XmlSchemaForm.None, viaRefProperty.GetCustomAttributes<XmlElementAttribute>().FirstOrDefault()?.Form);
         }
 
         [Fact]

XmlSchemaClassGenerator/ModelBuilder.cs

@@ -912,14 +912,23 @@ private IEnumerable<PropertyModel> CreatePropertiesForElements(Uri source, TypeM
                         IsCollection = item.MaxOccurs > 1.0m || particle.MaxOccurs > 1.0m, // http://msdn.microsoft.com/en-us/library/vstudio/d3hx2s7e(v=vs.100).aspx
                         DefaultValue = element.DefaultValue ?? ((item.MinOccurs >= 1.0m && item.XmlParent is not XmlSchemaChoice) ? element.FixedValue : null),
                         FixedValue = element.FixedValue,
-                        Form = element.Form == XmlSchemaForm.None ? element.GetSchema().ElementFormDefault : element.Form,
                         XmlNamespace = !string.IsNullOrEmpty(effectiveElement.QualifiedName.Namespace) && effectiveElement.QualifiedName.Namespace != typeModel.XmlSchemaName.Namespace
                             ? effectiveElement.QualifiedName.Namespace : null,
                         XmlParticle = item.XmlParticle,
                         XmlParent = item.XmlParent,
                         Particle = item
                     };
 
+                    if (element.Form == XmlSchemaForm.None)
+                    {
+                        if (element.RefName != null && !element.RefName.IsEmpty)
+                            property.Form = XmlSchemaForm.Qualified;
+                        else
+                            property.Form = element.GetSchema().ElementFormDefault;
+                    }
+                    else
+                        property.Form = element.Form;
+
                     if (property.IsArray && !_configuration.GenerateComplexTypesForCollections)
                     {
                         property.Type.Namespace.Types.Remove(property.Type.Name);