public void ReorderAllColumns(List <string> keys)
{
if (!Cols.All(keys.Contains))
{
string message = String.Format("ReorderAllColumns: keys({0}) to reorder are not the same as CSVData ({1})", String.Join(",", keys), String.Join(",", Cols));
throw new ArgumentOutOfRangeException(nameof(keys), message);
}
else
{
ReorderColumns(keys);
}
}