| private IndexOfDataSetTable ( string dataSetTable ) : int | ||
| dataSetTable | string | |
| Résultat | int | |
internal SchemaMapping(DataAdapter adapter, DataSet dataset, DataTable datatable, DataReaderContainer dataReader, bool keyInfo,
SchemaType schemaType, string sourceTableName, bool gettingData,
DataColumn parentChapterColumn, object parentChapterValue) {
Debug.Assert(null != adapter, "adapter");
Debug.Assert(null != dataReader, "dataReader");
Debug.Assert(0 < dataReader.FieldCount, "FieldCount");
Debug.Assert(null != dataset || null != datatable, "SchemaMapping - null dataSet");
Debug.Assert(SchemaType.Mapped == schemaType || SchemaType.Source == schemaType, "SetupSchema - invalid schemaType");
_dataSet = dataset; // setting DataSet implies chapters are supported
_dataTable = datatable; // setting only DataTable, not DataSet implies chapters are not supported
_adapter = adapter;
_dataReader = dataReader;
if (keyInfo) {
_schemaTable = dataReader.GetSchemaTable();
}
if (adapter.ShouldSerializeFillLoadOption()) {
_loadOption = adapter.FillLoadOption;
}
else if (adapter.AcceptChangesDuringFill) {
_loadOption = (LoadOption)4; // true
}
else {
_loadOption = (LoadOption)5; //false
}
MissingMappingAction mappingAction;
MissingSchemaAction schemaAction;
if (SchemaType.Mapped == schemaType) {
mappingAction = _adapter.MissingMappingAction;
schemaAction = _adapter.MissingSchemaAction;
if (!ADP.IsEmpty(sourceTableName)) { // MDAC 66034
_tableMapping = _adapter.GetTableMappingBySchemaAction(sourceTableName, sourceTableName, mappingAction);
}
else if (null != _dataTable) {
int index = _adapter.IndexOfDataSetTable(_dataTable.TableName);
if (-1 != index) {
_tableMapping = _adapter.TableMappings[index];
}
else {
switch (mappingAction) {
case MissingMappingAction.Passthrough:
_tableMapping = new DataTableMapping(_dataTable.TableName, _dataTable.TableName);
break;
case MissingMappingAction.Ignore:
_tableMapping = null;
break;
case MissingMappingAction.Error:
throw ADP.MissingTableMappingDestination(_dataTable.TableName);
default:
throw ADP.InvalidMissingMappingAction(mappingAction);
}
}
}
}
else if (SchemaType.Source == schemaType) {
mappingAction = System.Data.MissingMappingAction.Passthrough;
schemaAction = Data.MissingSchemaAction.Add;
if (!ADP.IsEmpty(sourceTableName)) { // MDAC 66034
_tableMapping = DataTableMappingCollection.GetTableMappingBySchemaAction(null, sourceTableName, sourceTableName, mappingAction);
}
else if (null != _dataTable) {
int index = _adapter.IndexOfDataSetTable(_dataTable.TableName); // MDAC 66034
if (-1 != index) {
_tableMapping = _adapter.TableMappings[index];
}
else {
_tableMapping = new DataTableMapping(_dataTable.TableName, _dataTable.TableName);
}
}
}
else {
throw ADP.InvalidSchemaType(schemaType);
}
if (null != _tableMapping) {
if (null == _dataTable) {
_dataTable = _tableMapping.GetDataTableBySchemaAction(_dataSet, schemaAction);
}
if (null != _dataTable) {
_fieldNames = GenerateFieldNames(dataReader);
if (null == _schemaTable) {
_readerDataValues = SetupSchemaWithoutKeyInfo(mappingAction, schemaAction, gettingData, parentChapterColumn, parentChapterValue);
}
else {
_readerDataValues = SetupSchemaWithKeyInfo(mappingAction, schemaAction, gettingData, parentChapterColumn, parentChapterValue);
}
}
// else (null == _dataTable) which means ignore (mapped to nothing)
}
}
