private SchemaMapping FillMappingInternal(DataSet dataset, DataTable datatable, string srcTable, DataReaderContainer dataReader, int schemaCount, DataColumn parentChapterColumn, object parentChapterValue)
{
bool withKeyInfo = (MissingSchemaAction.AddWithKey == MissingSchemaAction);
string tmp = null;
if (null != dataset)
{
tmp = DataAdapter.GetSourceTableName(srcTable, schemaCount);
}
return(new SchemaMapping(this, dataset, datatable, dataReader, withKeyInfo, SchemaType.Mapped, tmp, true, parentChapterColumn, parentChapterValue));
}
internal async Task <object> FillSchemaFromReaderAsync(DataSet dataset, DataTable datatable, SchemaType schemaType, string srcTable, DbDataReader dataReader)
{
DataTable[] dataTables = null;
int schemaCount = 0;
do
{
DataReaderContainer readerHandler = DataReaderContainer.Create(dataReader, ReturnProviderSpecificTypes);
AssertReaderHandleFieldCount(readerHandler);
if (0 >= readerHandler.FieldCount)
{
continue;
}
string tmp = null;
if (null != dataset)
{
tmp = DataAdapter.GetSourceTableName(srcTable, schemaCount);
schemaCount++; // don't increment if no SchemaTable ( a non-row returning result )
}
SchemaMapping mapping = new SchemaMapping(this, dataset, datatable, readerHandler, true, schemaType, tmp, false, null, null);
if (null != datatable)
{
// do not read remaining results in single DataTable case
return(mapping.DataTable);
}
else if (null != mapping.DataTable)
{
if (null == dataTables)
{
dataTables = new DataTable[1] {
mapping.DataTable
};
}
else
{
dataTables = DataAdapter.AddDataTableToArray(dataTables, mapping.DataTable);
}
}
} while (await dataReader.NextResultAsync()); // FillSchema does not capture errors for FillError event
object value = dataTables;
if ((null == value) && (null == datatable))
{ // WebData 101757
value = new DataTable[0];
}
return(value); // null if datatable had no results
}