Fill() [4/4]

virtual int System.Data.Common.DataAdapter.Fill ( DataTable[] dataTables, IDataReader dataReader, int startRecord, int maxRecords )

inlineprotectedvirtualinherited

Definition at line 420 of file DataAdapter.cs.

    {
        long scopeId = DataCommonEventSource.Log.EnterScope("<comm.DataAdapter.Fill|API> {0}, dataTables[], dataReader, startRecord, maxRecords", ObjectID);
        try
        {
            ADP.CheckArgumentLength(dataTables, "dataTables");
            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 result = 0;
            bool flag = false;
            DataSet dataSet = dataTables[0].DataSet;
            try
            {
                if (dataSet != null)
                {
                    flag = dataSet.EnforceConstraints;
                    dataSet.EnforceConstraints = false;
                }
                for (int i = 0; i < dataTables.Length && !dataReader.IsClosed; i++)
                {
                    DataReaderContainer dataReaderContainer = DataReaderContainer.Create(dataReader, ReturnProviderSpecificTypes);
                    if (dataReaderContainer.FieldCount <= 0)
                    {
                        if (i != 0)
                        {
                            continue;
                        }
                        bool flag2;
                        do
                        {
                            flag2 = FillNextResult(dataReaderContainer);
                        }
                        while (flag2 && dataReaderContainer.FieldCount <= 0);
                        if (!flag2)
                        {
                            break;
                        }
                    }
                    if (0 >= i || FillNextResult(dataReaderContainer))
                    {
                        int num = FillFromReader(null, dataTables[i], null, dataReaderContainer, startRecord, maxRecords);
                        if (i == 0)
                        {
                            result = num;
                        }
                        continue;
                    }
                    break;
                }
            }
            catch (ConstraintException)
            {
                flag = false;
                throw;
            }
            finally
            {
                if (flag)
                {
                    dataSet.EnforceConstraints = true;
                }
            }
            return result;
        }
        finally
        {
            DataCommonEventSource.Log.ExitScope(scopeId);
        }
    }

References System.Data.Common.ADP.CheckArgumentLength(), System.Data.ProviderBase.DataReaderContainer.Create(), System.Data.DataTable.DataSet, System.Data.DataSet.EnforceConstraints, System.Data.ProviderBase.DataReaderContainer.FieldCount, System.Data.Common.DataAdapter.FillFromReader(), System.Data.Common.DataAdapter.FillNextResult(), System.Data.Common.ADP.FillRequires(), System.Data.IDataReader.IsClosed, System.Data.DataCommonEventSource.Log, System.Data.Common.ADP.NotSupported(), System.Data.Common.DataAdapter.ObjectID, and System.Data.Common.DataAdapter.ReturnProviderSpecificTypes.