protected virtual int Fill(DataTable[] dataTables, IDataReader dataReader, int startRecord, int maxRecords)
{
    int num3;
    IntPtr ptr;
    Bid.ScopeEnter(out ptr, "<comm.DataAdapter.Fill|API> %d#, dataTables[], dataReader, startRecord, maxRecords\n", this.ObjectID);
    try
    {
        ADP.CheckArgumentLength(dataTables, "tables");
        if (((dataTables == null) || (dataTables.Length == 0)) || (dataTables[0] == null))
        {
            throw ADP.FillRequires("dataTable");
        }
        if (dataReader == null)
        {
            throw ADP.FillRequires("dataReader");
        }
        if ((1 < dataTables.Length) && ((startRecord != 0) || (maxRecords != 0)))
        {
            throw ADP.NotSupported();
        }
        int num2 = 0;
        bool enforceConstraints = false;
        DataSet dataSet = dataTables[0].DataSet;
        try
        {
            if (dataSet != null)
            {
                enforceConstraints = dataSet.EnforceConstraints;
                dataSet.EnforceConstraints = false;
            }
            for (int i = 0; i < dataTables.Length; i++)
            {
                if (dataReader.IsClosed)
                {
                    goto Label_00DE;
                }
                DataReaderContainer container = DataReaderContainer.Create(dataReader, this.ReturnProviderSpecificTypes);
                if (container.FieldCount > 0)
                {
                    if ((0 < i) && !this.FillNextResult(container))
                    {
                        goto Label_00DE;
                    }
                    int num4 = this.FillFromReader(null, dataTables[i], null, container, startRecord, maxRecords, null, null);
                    if (i == 0)
                    {
                        num2 = num4;
                    }
                }
            }
        }
        catch (ConstraintException)
        {
            enforceConstraints = false;
            throw;
        }
        finally
        {
            if (enforceConstraints)
            {
                dataSet.EnforceConstraints = true;
            }
        }
    Label_00DE:
        num3 = num2;
    }
    finally
    {
        Bid.ScopeLeave(ref ptr);
    }
    return num3;
}