EntityTypeConfiguration<TEntityType>.HasKey<TKey> Method

Reference

Definition

Namespace:: Microsoft.AspNet.OData.Builder

Assembly:: Microsoft.AspNet.OData.dll

Assembly:: Microsoft.AspNetCore.OData.dll

Package:: Microsoft.AspNet.OData v7.5.8

Package:: Microsoft.AspNetCore.OData v7.5.8

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Configures the key property(s) for this entity type.

public Microsoft.AspNet.OData.Builder.EntityTypeConfiguration<TEntityType> HasKey<TKey> (System.Linq.Expressions.Expression<Func<TEntityType,TKey>> keyDefinitionExpression);

member this.HasKey : System.Linq.Expressions.Expression<Func<'EntityType, 'Key>> -> Microsoft.AspNet.OData.Builder.EntityTypeConfiguration<'EntityType (requires 'EntityType : null)>

Public Function HasKey(Of TKey) (keyDefinitionExpression As Expression(Of Func(Of TEntityType, TKey))) As EntityTypeConfiguration(Of TEntityType)

Type Parameters

TKey

The type of key.

Parameters

keyDefinitionExpression: Expression<Func<TEntityType,TKey>>

A lambda expression representing the property to be used as the primary key. For example, in C# t => t.Id and in Visual Basic .Net Function(t) t.Id.

Returns

EntityTypeConfiguration<TEntityType>

Returns itself so that multiple calls can be chained.

Applies to

Jaa