OnChildGridLoaded happens few times

[Orit]

In order to filter my child grid
I try to do the folowing
but now the OnChildGridLoaded
happens few times and I get the child grid few times

 private void OnChildGridLoaded(object sender, RoutedEventArgs e)
        {
                try
                {
                    if (((ComboBoxValues.ComboValues)cmbActivityType.SelectedValue).Id != 0)
                    {
                        dsAcoount.Tables["Budget"].DefaultView.RowFilter = "ActivityTypeID=" + ((ComboBoxValues.ComboValues)cmbActivityType.SelectedValue).Id;
                        ((RadGridView)sender).ItemsSource = null;
                        ((RadGridView)sender).ItemsSource = dsAcoount.Tables["Budget"].DefaultView;
                    }
}

Thanks!
Orit

[Orit]

sorry
it was a mistake of me in another function...