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ReferenceCollectionBuilder<TPrincipalEntity,TDependentEntity>.IsRequired Method

  • Reference

Definition

Namespace:
Microsoft.EntityFrameworkCore.Metadata.Builders
Assembly:
Microsoft.EntityFrameworkCore.dll
Package:
Microsoft.EntityFrameworkCore v1.0.6
Package:
Microsoft.EntityFrameworkCore v1.1.6
Package:
Microsoft.EntityFrameworkCore v2.0.3
Package:
Microsoft.EntityFrameworkCore v2.1.11
Package:
Microsoft.EntityFrameworkCore v2.2.6
Package:
Microsoft.EntityFrameworkCore v3.0.0
Package:
Microsoft.EntityFrameworkCore v3.1.0
Package:
Microsoft.EntityFrameworkCore v5.0.0
Package:
Microsoft.EntityFrameworkCore v6.0.0
Package:
Microsoft.EntityFrameworkCore v7.0.0
Package:
Microsoft.EntityFrameworkCore v8.0.0

Configures whether this is a required relationship (i.e. whether the foreign key property(s) can be assigned null).

public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.ReferenceCollectionBuilder<TPrincipalEntity,TDependentEntity> IsRequired (bool required = true);
override this.IsRequired : bool -> Microsoft.EntityFrameworkCore.Metadata.Builders.ReferenceCollectionBuilder<'PrincipalEntity, 'DependentEntity (requires 'PrincipalEntity : null and 'DependentEntity : null)>
Public Overridable Function IsRequired (Optional required As Boolean = true) As ReferenceCollectionBuilder(Of TPrincipalEntity, TDependentEntity)

Parameters

required
Boolean

A value indicating whether this is a required relationship.

Returns

ReferenceCollectionBuilder<TPrincipalEntity,TDependentEntity>

The same builder instance so that multiple configuration calls can be chained.

Applies to