c# using advanced datagridview (ADGV) filter without BindingSource

Question

I am using the advanced DataGridView (ADGV) found here to add filtering capabilities to my application.

The code for filtering or sorting is mentioned as:

Answer 1

    DataTable OrignalADGVdt = null;
    private void advancedDataGridView1_FilterStringChanged(object sender, Zuby.ADGV.AdvancedDataGridView.FilterEventArgs e)
    {
        Zuby.ADGV.AdvancedDataGridView fdgv = advancedDataGridView1;
        DataTable dt = null;
        if (OrignalADGVdt == null)
        {
            OrignalADGVdt = (DataTable)fdgv.DataSource;
        }
        if (fdgv.FilterString.Length > 0)
        {
            dt = (DataTable)fdgv.DataSource;
        }
        else//Clear Filter
        {
            dt = OrignalADGVdt;
        }

        fdgv.DataSource = dt.Select(fdgv.FilterString).CopyToDataTable();
    }