IConventionIndexBuilder.IsUnique(Nullable<Boolean>, Boolean) Method
Definition
Important
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Configures whether this index is unique (i.e. each set of values must be unique).
public Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionIndexBuilder IsUnique (bool? unique, bool fromDataAnnotation = false);
public Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionIndexBuilder? IsUnique (bool? unique, bool fromDataAnnotation = false);
abstract member IsUnique : Nullable<bool> * bool -> Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionIndexBuilder
Public Function IsUnique (unique As Nullable(Of Boolean), Optional fromDataAnnotation As Boolean = false) As IConventionIndexBuilder
Parameters
- 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