IConventionForeignKeyBuilder.IsUnique Method
Definition
Important
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Configures whether the dependent entity is unique (i.e. whether the navigation to the dependent entity type is not a collection).
public Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionForeignKeyBuilder IsUnique (bool? unique, bool fromDataAnnotation = false);public Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionForeignKeyBuilder? IsUnique (bool? unique, bool fromDataAnnotation = false);abstract member IsUnique : Nullable<bool> * bool -> Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionForeignKeyBuilderPublic Function IsUnique (unique As Nullable(Of Boolean), Optional fromDataAnnotation As Boolean = false) As IConventionForeignKeyBuilderParameters
A value indicating whether the dependent entity is unique.
null to reset to default.
- fromDataAnnotation
- Boolean
Indicates whether the configuration was specified using a data annotation.
Returns
The same builder instance if the uniqueness was configured,
null otherwise.
Applies to
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Entity Framework