/// <summary>
/// Returns the property descriptors for this instance.
/// </summary>
public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object value, Attribute[] attributes)
{
Guard.NotNull(() => context, context);
var descriptors = base.GetProperties(context, value, attributes).Cast<PropertyDescriptor>();
// Remove descriptors for the data type of this property (string)
descriptors = descriptors.Where(descriptor => descriptor.ComponentType != typeof(string));
// Get the model element being described
var selection = context.Instance;
ModelElement mel = selection as ModelElement;
var pel = selection as PresentationElement;
if (pel != null)
{
mel = pel.Subject;
}
var element = ExtensionElement.GetExtension<ArtifactExtension>(mel);
if (element != null)
{
// Copy descriptors from owner (make Browsable)
var descriptor1 = new DelegatingPropertyDescriptor(element, TypedDescriptor.CreateProperty(element, extension => extension.OnArtifactActivation),
new BrowsableAttribute(true), new DefaultValueAttribute(element.GetPropertyDefaultValue<ArtifactExtension, ArtifactActivatedAction>(e => e.OnArtifactActivation)));
var descriptor2 = new DelegatingPropertyDescriptor(element, TypedDescriptor.CreateProperty(element, extension => extension.OnArtifactDeletion),
new BrowsableAttribute(true), new DefaultValueAttribute(element.GetPropertyDefaultValue<ArtifactExtension, ArtifactDeletedAction>(e => e.OnArtifactDeletion)));
descriptors = descriptors.Concat(new[] { descriptor1, descriptor2 });
}
return new PropertyDescriptorCollection(descriptors.ToArray());
}
/// <summary>
/// Returns the property descriptors for this instance.
/// </summary>
public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object value, Attribute[] attributes)
{
Guard.NotNull(() => context, context);
var descriptors = base.GetProperties(context, value, attributes).Cast <PropertyDescriptor>();
// Remove descriptors for the data type of this property (string)
descriptors = descriptors.Where(descriptor => descriptor.ComponentType != typeof(string));
// Get the model element being described
var selection = context.Instance;
ModelElement mel = selection as ModelElement;
var pel = selection as PresentationElement;
if (pel != null)
{
mel = pel.Subject;
}
var element = ExtensionElement.GetExtension <ArtifactExtension>(mel);
if (element != null)
{
// Copy descriptors from owner (make Browsable)
var descriptor1 = new DelegatingPropertyDescriptor(element, TypedDescriptor.CreateProperty(element, extension => extension.OnArtifactActivation),
new BrowsableAttribute(true), new DefaultValueAttribute(element.GetPropertyDefaultValue <ArtifactExtension, ArtifactActivatedAction>(e => e.OnArtifactActivation)));
var descriptor2 = new DelegatingPropertyDescriptor(element, TypedDescriptor.CreateProperty(element, extension => extension.OnArtifactDeletion),
new BrowsableAttribute(true), new DefaultValueAttribute(element.GetPropertyDefaultValue <ArtifactExtension, ArtifactDeletedAction>(e => e.OnArtifactDeletion)));
descriptors = descriptors.Concat(new[] { descriptor1, descriptor2 });
}
return(new PropertyDescriptorCollection(descriptors.ToArray()));
}
