public class myContext : LinqToEntitiesDomainService<StoreEntities1>
    {

        // TODO:
        // Consider constraining the results of your query method.  If you need additional input you can
        // add parameters to this method or create additional query methods with different names.
        // To support paging you will need to add ordering to the 'z_options' query.
        public IQueryable<z_options> GetZ_options()
        {
            return this.ObjectContext.z_options;
        }

        public void InsertZ_options(z_options z_options)
        {
            if ((z_options.EntityState != EntityState.Detached))
            {
                this.ObjectContext.ObjectStateManager.ChangeObjectState(z_options, EntityState.Added);
            }
            else
            {
                this.ObjectContext.z_options.AddObject(z_options);
            }
        }

        public void UpdateZ_options(z_options currentz_options)
        {
            this.ObjectContext.z_options.AttachAsModified(currentz_options, this.ChangeSet.GetOriginal(currentz_options));
        }

        public void DeleteZ_options(z_options z_options)
        {
            if ((z_options.EntityState == EntityState.Detached))
            {
                this.ObjectContext.z_options.Attach(z_options);
                z_options.users = "1";
            }
            //this.ObjectContext.z_options.DeleteObject(z_options);
        }

   private void checkBox_b_Click(object sender, RoutedEventArgs e)
        {
            if (checkBox_b.IsChecked.Value)
            {
                z_optionsDomainDataSource.DataView.Remove( 1 );
                z_optionsDomainDataSource.SubmitChanges();
            }
            else
            {
               MessageBox.Show("False");
            }
        }