PropertyBuilder.IsConcurrencyToken(Boolean) 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 property should be used as a concurrency token. When a property is configured as a concurrency token the value in the database will be checked when an instance of this entity type is updated or deleted during SaveChanges() to ensure it has not changed since the instance was retrieved from the database. If it has changed, an exception will be thrown and the changes will not be applied to the database.

public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder IsConcurrencyToken (bool concurrencyToken = true);
abstract member IsConcurrencyToken : bool -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder
override this.IsConcurrencyToken : bool -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder
Public Overridable Function IsConcurrencyToken (Optional concurrencyToken As Boolean = true) As PropertyBuilder

Parameters

concurrencyToken
Boolean

A value indicating whether this property is a concurrency token.

Returns

PropertyBuilder

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

Applies to