MappingFragment Class
Definition
Important
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Represents the metadata for mapping fragment. A set of mapping fragments makes up the Set mappings( EntitySet, AssociationSet or CompositionSet ) Each MappingFragment provides mapping for those properties of a type that map to a single table.
public class MappingFragment : System.Data.Entity.Core.Mapping.StructuralTypeMappingtype MappingFragment = class
inherit StructuralTypeMappingPublic Class MappingFragment
Inherits StructuralTypeMapping- Inheritance
Examples
For Example if conceptually you could represent the CS MSL file as following --Mapping --EntityContainerMapping ( CNorthwind-->SNorthwind ) --EntitySetMapping --EntityTypeMapping --MappingFragment --EntityKey --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata ) --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata ) --EntityTypeMapping --MappingFragment --EntityKey --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata ) --ComplexPropertyMap --ComplexTypeMapping --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata ) --ScalarProperyMap ( CMemberMetadata-->SMemberMetadata ) --DiscriminatorProperyMap ( constant value-->SMemberMetadata ) --ComplexTypeMapping --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata ) --ScalarProperyMap ( CMemberMetadata-->SMemberMetadata ) --DiscriminatorProperyMap ( constant value-->SMemberMetadata ) --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata ) --AssociationSetMapping --AssociationTypeMapping --MappingFragment --EndPropertyMap --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata ) --ScalarProperyMap ( CMemberMetadata-->SMemberMetadata ) --EndPropertyMap --ScalarPropertyMap ( CMemberMetadata-->SMemberMetadata ) This class represents the metadata for all the mapping fragment elements in the above example. Users can access all the top level constructs of MappingFragment element like EntityKey map, Property Maps, Discriminator property through this mapping fragment class.
Constructors
| MappingFragment(EntitySet, TypeMapping, Boolean) |
Creates a MappingFragment instance. |
Properties
| Conditions |
Gets a read-only collection of property mapping conditions. |
| MakeColumnsDistinct |
Gets a flag that indicates whether to include 'DISTINCT' when generating queries. |
| PropertyMappings |
Gets a read-only collection of property mappings. |
| StoreEntitySet |
Gets the EntitySet corresponding to the table or view being mapped. |
| TypeMapping |
Gets the TypeMapping that contains this MappingFragment. |
Methods
| AddCondition(ConditionPropertyMapping) |
Adds a property mapping condition. |
| AddPropertyMapping(PropertyMapping) |
Adds a property mapping. |
| RemoveCondition(ConditionPropertyMapping) |
Removes a property mapping condition. |
| RemovePropertyMapping(PropertyMapping) |
Removes a property mapping. |
Applies to
Entity Framework