private void UsersGridView_CellValueChanged(object sender, DevExpress.XtraGrid.Views.Base.CellValueChangedEventArgs e)
{
if (UsersGridView.GetRow(e.RowHandle) is Users user)
{
if (user.IsSelectedUserInDocuments)
{
userIds.Add(user.Id);
}
else
{
userIds.Remove(user.Id);
}
}
}