How to Bulk Update records in Entity Framework?

Question

I am trying to bulk update records using Entity Framework. I have tried Entity Framework.Extensions Update method.

The Update method is abl

Answer 1

Use this way if you just want to modify few properties:

foreach (var vSelectedDok in doks)
{
    //disable detection of changes to improve performance
    vDal.Configuration.AutoDetectChangesEnabled = false;
    
    vDal.Dokumente.Attach(vSelectedDok);

    vDal.Entry(vSelectedDok).Property(x=>x.Status).IsModified=true;
    vDal.Entry(vSelectedDok).Property(x => x.LastDateChanged).IsModified = true;
}
vDal.SaveChanges();