Provides dinamic filtering of parts and exports from an underlying reflection-based catalog using a simple lambda expression that can inspect the export, its metadata and its exporting reflected type (part). Example: var filtered = new FilteringReflectionCatalog(innerCatalog) { // Filter all parts that don't have an "IsPublic" metadata PartFilter = part => part.PartDefinition.Metadata.ContainsKey("IsPublic") };