RelationalQueryTypeBuilderExtensions.HasDiscriminator Method
Definition
Important
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Overloads
| HasDiscriminator(QueryTypeBuilder) |
Configures the discriminator column used to identify which query type each row in a table represents when an inheritance hierarchy is mapped to a single table in a relational database. |
| HasDiscriminator(QueryTypeBuilder, String, Type) |
Configures the discriminator column used to identify which query type each row in a table represents when an inheritance hierarchy is mapped to a single table in a relational database. |
| HasDiscriminator<TDiscriminator>(QueryTypeBuilder, String) |
Configures the discriminator column used to identify which query type each row in a table represents when an inheritance hierarchy is mapped to a single table in a relational database. |
| HasDiscriminator<TQuery,TDiscriminator>(QueryTypeBuilder<TQuery>, Expression<Func<TQuery,TDiscriminator>>) |
Configures the discriminator column used to identify which query type each row in a table represents when an inheritance hierarchy is mapped to a single table in a relational database. |
HasDiscriminator(QueryTypeBuilder)
Configures the discriminator column used to identify which query type each row in a table represents when an inheritance hierarchy is mapped to a single table in a relational database.
public static Microsoft.EntityFrameworkCore.Metadata.Builders.DiscriminatorBuilder HasDiscriminator (this Microsoft.EntityFrameworkCore.Metadata.Builders.QueryTypeBuilder queryTypeBuilder);static member HasDiscriminator : Microsoft.EntityFrameworkCore.Metadata.Builders.QueryTypeBuilder -> Microsoft.EntityFrameworkCore.Metadata.Builders.DiscriminatorBuilder<Extension()>
Public Function HasDiscriminator (queryTypeBuilder As QueryTypeBuilder) As DiscriminatorBuilderParameters
- queryTypeBuilder
- QueryTypeBuilder
The builder for the query type being configured.
Returns
A builder that allows the discriminator column to be configured.
Applies to
HasDiscriminator(QueryTypeBuilder, String, Type)
Configures the discriminator column used to identify which query type each row in a table represents when an inheritance hierarchy is mapped to a single table in a relational database.
public static Microsoft.EntityFrameworkCore.Metadata.Builders.DiscriminatorBuilder HasDiscriminator (this Microsoft.EntityFrameworkCore.Metadata.Builders.QueryTypeBuilder queryTypeBuilder, string name, Type discriminatorType);static member HasDiscriminator : Microsoft.EntityFrameworkCore.Metadata.Builders.QueryTypeBuilder * string * Type -> Microsoft.EntityFrameworkCore.Metadata.Builders.DiscriminatorBuilder<Extension()>
Public Function HasDiscriminator (queryTypeBuilder As QueryTypeBuilder, name As String, discriminatorType As Type) As DiscriminatorBuilderParameters
- queryTypeBuilder
- QueryTypeBuilder
The builder for the query type being configured.
- name
- String
The name of the discriminator column.
- discriminatorType
- Type
The type of values stored in the discriminator column.
Returns
A builder that allows the discriminator column to be configured.
Applies to
HasDiscriminator<TDiscriminator>(QueryTypeBuilder, String)
Configures the discriminator column used to identify which query type each row in a table represents when an inheritance hierarchy is mapped to a single table in a relational database.
public static Microsoft.EntityFrameworkCore.Metadata.Builders.DiscriminatorBuilder<TDiscriminator> HasDiscriminator<TDiscriminator> (this Microsoft.EntityFrameworkCore.Metadata.Builders.QueryTypeBuilder queryTypeBuilder, string name);static member HasDiscriminator : Microsoft.EntityFrameworkCore.Metadata.Builders.QueryTypeBuilder * string -> Microsoft.EntityFrameworkCore.Metadata.Builders.DiscriminatorBuilder<'Discriminator><Extension()>
Public Function HasDiscriminator(Of TDiscriminator) (queryTypeBuilder As QueryTypeBuilder, name As String) As DiscriminatorBuilder(Of TDiscriminator)Type Parameters
- TDiscriminator
The type of values stored in the discriminator column.
Parameters
- queryTypeBuilder
- QueryTypeBuilder
The builder for the query type being configured.
- name
- String
The name of the discriminator column.
Returns
A builder that allows the discriminator column to be configured.
Applies to
HasDiscriminator<TQuery,TDiscriminator>(QueryTypeBuilder<TQuery>, Expression<Func<TQuery,TDiscriminator>>)
Configures the discriminator column used to identify which query type each row in a table represents when an inheritance hierarchy is mapped to a single table in a relational database.
public static Microsoft.EntityFrameworkCore.Metadata.Builders.DiscriminatorBuilder<TDiscriminator> HasDiscriminator<TQuery,TDiscriminator> (this Microsoft.EntityFrameworkCore.Metadata.Builders.QueryTypeBuilder<TQuery> queryTypeBuilder, System.Linq.Expressions.Expression<Func<TQuery,TDiscriminator>> propertyExpression) where TQuery : class;static member HasDiscriminator : Microsoft.EntityFrameworkCore.Metadata.Builders.QueryTypeBuilder<'Query (requires 'Query : null)> * System.Linq.Expressions.Expression<Func<'Query, 'Discriminator>> -> Microsoft.EntityFrameworkCore.Metadata.Builders.DiscriminatorBuilder<'Discriminator> (requires 'Query : null)<Extension()>
Public Function HasDiscriminator(Of TQuery As Class, TDiscriminator As Class) (queryTypeBuilder As QueryTypeBuilder(Of TQuery), propertyExpression As Expression(Of Func(Of TQuery, TDiscriminator))) As DiscriminatorBuilder(Of TDiscriminator)Type Parameters
- TQuery
The query type being configured.
- TDiscriminator
The type of values stored in the discriminator column.
Parameters
- queryTypeBuilder
- QueryTypeBuilder<TQuery>
The builder for the query type being configured.
- propertyExpression
- Expression<Func<TQuery,TDiscriminator>>
A lambda expression representing the property to be used as the discriminator (
blog => blog.Discriminator).
Returns
A builder that allows the discriminator column to be configured.
Applies to
Entity Framework
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