ChangeTracker.HasChanges Method

  • Reference

Definition

Namespace:
Microsoft.EntityFrameworkCore.ChangeTracking
Assembly:
Microsoft.EntityFrameworkCore.dll
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

Checks if any new, deleted, or changed entities are being tracked such that these changes will be sent to the database if SaveChanges() or SaveChangesAsync(CancellationToken) is called.

public virtual bool HasChanges ();
abstract member HasChanges : unit -> bool
override this.HasChanges : unit -> bool
Public Overridable Function HasChanges () As Boolean

Returns

Boolean

true if there are changes to save, otherwise false.

Remarks

This method calls DetectChanges() to ensure the returned value is accurate. Since detecting changes can be slow, consider temporarily setting AutoDetectChangesEnabled to prevent detecting changes in situations where the state is known to be up-to-date.

See EF Core change tracking for more information and examples.

Applies to