public bool?Update(T entity, params object[] keyValues)
{
var entry = context.Entry(entity);
if (keyValues.Length > 0)
{
if (entry.State == EntityState.Detached)
{
T attached = _entity.Find(keyValues);
if (attached != null)
{
var attachedEntry = context.Entry(attached);
attachedEntry.CurrentValues.SetValues(entity);
}
else
{
entry.State = EntityState.Modified;
}
}
}
else
{
entry.State = EntityState.Modified;
}
return(SaveChanges());
}
