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IConventionElementTypeBuilder.IsRequired Method

  • Reference

Definition

Namespace:
Microsoft.EntityFrameworkCore.Metadata.Builders
Assembly:
Microsoft.EntityFrameworkCore.dll
Package:
Microsoft.EntityFrameworkCore v8.0.0

Configures whether elements of the collection must have a value or can be null. An element can only be configured as non-required if it is based on a CLR type that can be assigned null.

public Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionElementTypeBuilder? IsRequired (bool? required, bool fromDataAnnotation = false);
abstract member IsRequired : Nullable<bool> * bool -> Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionElementTypeBuilder
Public Function IsRequired (required As Nullable(Of Boolean), Optional fromDataAnnotation As Boolean = false) As IConventionElementTypeBuilder

Parameters

required
Nullable<Boolean>

A value indicating whether elements of the collection must not be null.

fromDataAnnotation
Boolean

Indicates whether the configuration was specified using a data annotation.

Returns

IConventionElementTypeBuilder

The same builder instance if the requiredness was configured, null otherwise.

Applies to