PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties()
{
// get model properties
List <PropertyDescriptor> properties = new List <PropertyDescriptor>();
foreach (PropertyDescriptor modelPropertyDescriptor in ModelUtilities.WrapProperties(this))
{
properties.Add(modelPropertyDescriptor);
}
// try to see if there are pseudo builtin properties for this type.
AttachedPropertiesService AttachedPropertiesService = this.modelTreeManager.Context.Services.GetService <AttachedPropertiesService>();
if (AttachedPropertiesService != null)
{
var nonBrowsableAttachedProperties = from attachedProperty in AttachedPropertiesService.GetAttachedProperties(this.itemType)
where (!attachedProperty.IsBrowsable && !attachedProperty.IsVisibleToModelItem)
select attachedProperty;
foreach (AttachedProperty AttachedProperty in nonBrowsableAttachedProperties)
{
properties.Add(new AttachedPropertyDescriptor(AttachedProperty, this));
}
}
return(new PropertyDescriptorCollection(properties.ToArray(), true));
}
PropertyDescriptorCollection GetPropertyDescriptors()
{
PropertyDescriptorCollection propertyDescriptors = PropertyDescriptorCollection.Empty;
try
{
object instance = parent.GetCurrentValue();
if (instance != null)
{
if (!(instance is ICustomTypeDescriptor))
{
Type instanceType = instance.GetType();
if (instanceType.IsValueType)
{
propertyDescriptors = TypeDescriptor.GetProvider(instanceType).GetTypeDescriptor(instanceType).GetProperties();
}
else
{
propertyDescriptors = TypeDescriptor.GetProvider(instance).GetTypeDescriptor(instance).GetProperties();
}
}
else
{
propertyDescriptors = TypeDescriptor.GetProperties(instance);
}
}
// Add browsable attached properties
AttachedPropertiesService AttachedPropertiesService = this.parent.GetEditingContext().Services.GetService <AttachedPropertiesService>();
if (AttachedPropertiesService != null)
{
var browsableAttachedProperties = from attachedProperty in AttachedPropertiesService.GetAttachedProperties(this.parent.ItemType)
where (attachedProperty.IsBrowsable || attachedProperty.IsVisibleToModelItem)
select new AttachedPropertyDescriptor(attachedProperty, this.parent);
List <PropertyDescriptor> mergedProperties = new List <PropertyDescriptor>();
foreach (PropertyDescriptor propertyDescriptor in propertyDescriptors)
{
mergedProperties.Add(propertyDescriptor);
}
propertyDescriptors = new PropertyDescriptorCollection(mergedProperties.Concat(browsableAttachedProperties).ToArray(), true);
}
}
catch (FileNotFoundException e)
{
EditingContext context = parent.GetEditingContext();
if (context.Items.GetValue <ErrorItem>() == null)
{
context.Items.SetValue(new ErrorItem {
Message = e.Message, Details = e.ToString()
});
}
}
return(propertyDescriptors);
}