Set datatable.defaultview.rowfilter then determine which rows show and are hidden?

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C#

DataTable

I have a DataTable bound to a DataGridView. The DataTable has a boolean column that is a checkbox column in the DataGridView. The user is allowed to filter the DataGridView and when I set DataTable.DefaultView.RowFilter it correctly shows and hides the appropriate rows. What I need to do is uncheck any row that has been hidden. I do a Linq select to get the checked rows and I need to uncheck any rows that are hidden. How do I know if the row is part of the filter or not?

dtBoundDataSource is set and bound to the datagridview above

private void UnselectFilteredRows()
{
    if(dtBoundDataSource != null && dtBoundDataSource.Rows.Count > 0)
    {
        var checkedRows = from cRow in dtBoundDataSource.AsEnumerable()
                          where cRow.Field<bool>(checkedColumnName) == true
                          select cRow;
        
        foreach (var row in checkedRows)
        {
            if(row) //this is where i need to check if the row is visible or hidden
                row.SetField(checkedColumnName, false);
        }
    }
}

Thanks in advance

What I have tried:

I have tried getting a DataView with a NOT filter and that returns no rows. I tried using rowstate, but that is if the row is added, changed, deleted etc. I can not seem to find a setting that shows if it's filtered or not.