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linux-packaging-mono/mcs/class/referencesource/System.Data/System/Data/Common/DataAdapter.cs

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Imported Upstream version 4.6.0.125 Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4
2016-08-03 10:59:49 +00:00
//------------------------------------------------------------------------------
// <copyright file="DataAdapter.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
Imported Upstream version 5.4.0.167 Former-commit-id: 5624ac747d633e885131e8349322922b6a59baaa
2017-08-21 15:34:15 +00:00
// <owner current="true" primary="true">Microsoft</owner>
// <owner current="true" primary="false">Microsoft</owner>
Imported Upstream version 4.6.0.125 Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4
2016-08-03 10:59:49 +00:00
//------------------------------------------------------------------------------
namespace System.Data.Common {
using System;
using System.ComponentModel;
using System.Data;
using System.Data.ProviderBase;
using System.Diagnostics;
using System.Globalization;
using System.Threading;
public class DataAdapter : Component, IDataAdapter { // V1.0.3300
static private readonly object EventFillError = new object();
private bool _acceptChangesDuringUpdate = true;
private bool _acceptChangesDuringUpdateAfterInsert = true;
private bool _continueUpdateOnError = false;
private bool _hasFillErrorHandler = false;
private bool _returnProviderSpecificTypes = false;
private bool _acceptChangesDuringFill = true;
private LoadOption _fillLoadOption;
private MissingMappingAction _missingMappingAction = System.Data.MissingMappingAction.Passthrough;
private MissingSchemaAction _missingSchemaAction = System.Data.MissingSchemaAction.Add;
private DataTableMappingCollection _tableMappings;
private static int _objectTypeCount; // Bid counter
internal readonly int _objectID = System.Threading.Interlocked.Increment(ref _objectTypeCount);
#if DEBUG
// if true, we are asserting that the caller has provided a select command
// which should not return an empty result set
private bool _debugHookNonEmptySelectCommand = false;
#endif
[Conditional("DEBUG")]
void AssertReaderHandleFieldCount(DataReaderContainer readerHandler) {
#if DEBUG
Debug.Assert(!_debugHookNonEmptySelectCommand || readerHandler.FieldCount > 0, "Scenario expects non-empty results but no fields reported by reader");
#endif
}
[Conditional("DEBUG")]
void AssertSchemaMapping(SchemaMapping mapping) {
#if DEBUG
if (_debugHookNonEmptySelectCommand) {
Debug.Assert(mapping != null && mapping.DataValues != null && mapping.DataTable != null, "Debug hook specifies that non-empty results are not expected");
}
#endif
}
protected DataAdapter() : base() { // V1.0.3300
GC.SuppressFinalize(this);
}
protected DataAdapter(DataAdapter from) : base() { // V1.1.3300
CloneFrom(from);
}
[
DefaultValue(true),
ResCategoryAttribute(Res.DataCategory_Fill),
ResDescriptionAttribute(Res.DataAdapter_AcceptChangesDuringFill),
]
public bool AcceptChangesDuringFill { // V1.0.3300
get {
//Bid.Trace("<comm.DataAdapter.get_AcceptChangesDuringFill|API> %d#\n", ObjectID);
return _acceptChangesDuringFill;
}
set {
_acceptChangesDuringFill = value;
//Bid.Trace("<comm.DataAdapter.set_AcceptChangesDuringFill|API> %d#, %d\n", ObjectID, value);
}
}
[
EditorBrowsableAttribute(EditorBrowsableState.Never)
]
virtual public bool ShouldSerializeAcceptChangesDuringFill() {
return (0 == _fillLoadOption);
}
[
DefaultValue(true),
ResCategoryAttribute(Res.DataCategory_Update),
ResDescriptionAttribute(Res.DataAdapter_AcceptChangesDuringUpdate),
]
public bool AcceptChangesDuringUpdate { // V1.2.3300, MDAC 74988
get {
//Bid.Trace("<comm.DataAdapter.get_AcceptChangesDuringUpdate|API> %d#\n", ObjectID);
return _acceptChangesDuringUpdate;
}
set {
_acceptChangesDuringUpdate = value;
//Bid.Trace("<comm.DataAdapter.set_AcceptChangesDuringUpdate|API> %d#, %d\n", ObjectID, value);
}
}
[
DefaultValue(false),
ResCategoryAttribute(Res.DataCategory_Update),
ResDescriptionAttribute(Res.DataAdapter_ContinueUpdateOnError),
]
public bool ContinueUpdateOnError { // V1.0.3300, MDAC 66900
get {
//Bid.Trace("<comm.DataAdapter.get_ContinueUpdateOnError|API> %d#\n", ObjectID);
return _continueUpdateOnError;
}
set {
_continueUpdateOnError = value;
//Bid.Trace("<comm.DataAdapter.set_ContinueUpdateOnError|API> %d#, %d\n", ObjectID, value);
}
}
[
RefreshProperties(RefreshProperties.All),
ResCategoryAttribute(Res.DataCategory_Fill),
ResDescriptionAttribute(Res.DataAdapter_FillLoadOption),
]
public LoadOption FillLoadOption { // V1.2.3300
get {
//Bid.Trace("<comm.DataAdapter.get_FillLoadOption|API> %d#\n", ObjectID);
LoadOption fillLoadOption = _fillLoadOption;
return ((0 != fillLoadOption) ? _fillLoadOption : LoadOption.OverwriteChanges);
}
set {
switch(value) {
case 0: // to allow simple resetting
case LoadOption.OverwriteChanges:
case LoadOption.PreserveChanges:
case LoadOption.Upsert:
_fillLoadOption = value;
//Bid.Trace("<comm.DataAdapter.set_FillLoadOption|API> %d#, %d{ds.LoadOption}\n", ObjectID, (int)value);
break;
default:
throw ADP.InvalidLoadOption(value);
}
}
}
[
EditorBrowsableAttribute(EditorBrowsableState.Never)
]
public void ResetFillLoadOption() {
_fillLoadOption = 0;
}
[
EditorBrowsableAttribute(EditorBrowsableState.Never)
]
virtual public bool ShouldSerializeFillLoadOption() {
return (0 != _fillLoadOption);
}
[
DefaultValue(System.Data.MissingMappingAction.Passthrough),
ResCategoryAttribute(Res.DataCategory_Mapping),
ResDescriptionAttribute(Res.DataAdapter_MissingMappingAction),
]
public MissingMappingAction MissingMappingAction { // V1.0.3300
get {
//Bid.Trace("<comm.DataAdapter.get_MissingMappingAction|API> %d#\n", ObjectID);
return _missingMappingAction;
}
set {
switch(value) { // @perfnote: Enum.IsDefined
case MissingMappingAction.Passthrough:
case MissingMappingAction.Ignore:
case MissingMappingAction.Error:
_missingMappingAction = value;
//Bid.Trace("<comm.DataAdapter.set_MissingMappingAction|API> %d#, %d{ds.MissingMappingAction}\n", ObjectID, (int)value);
break;
default:
throw ADP.InvalidMissingMappingAction(value);
}
}
}
[
DefaultValue(Data.MissingSchemaAction.Add),
ResCategoryAttribute(Res.DataCategory_Mapping),
ResDescriptionAttribute(Res.DataAdapter_MissingSchemaAction),
]
public MissingSchemaAction MissingSchemaAction { // V1.0.3300
get {
//Bid.Trace("<comm.DataAdapter.get_MissingSchemaAction|API> %d#\n", ObjectID);
return _missingSchemaAction;
}
set {
switch(value) { // @perfnote: Enum.IsDefined
case MissingSchemaAction.Add:
case MissingSchemaAction.Ignore:
case MissingSchemaAction.Error:
case MissingSchemaAction.AddWithKey:
_missingSchemaAction = value;
//Bid.Trace("<comm.DataAdapter.set_MissingSchemaAction|API> %d#, %d{MissingSchemaAction}\n", ObjectID, (int)value);
break;
default:
throw ADP.InvalidMissingSchemaAction(value);
}
}
}
internal int ObjectID {
get {
return _objectID;
}
}
[
DefaultValue(false),
ResCategoryAttribute(Res.DataCategory_Fill),
ResDescriptionAttribute(Res.DataAdapter_ReturnProviderSpecificTypes),
]
virtual public bool ReturnProviderSpecificTypes {
get {
//Bid.Trace("<comm.DataAdapter.get_ReturnProviderSpecificTypes|API> %d#\n", ObjectID);
return _returnProviderSpecificTypes;
}
set {
_returnProviderSpecificTypes = value;
//Bid.Trace("<comm.DataAdapter.set_ReturnProviderSpecificTypes|API> %d#, %d\n", ObjectID, (int)value);
}
}
[
DesignerSerializationVisibility(DesignerSerializationVisibility.Content),
ResCategoryAttribute(Res.DataCategory_Mapping),
ResDescriptionAttribute(Res.DataAdapter_TableMappings),
]
public DataTableMappingCollection TableMappings { // V1.0.3300
get {
//Bid.Trace("<comm.DataAdapter.get_TableMappings|API> %d#\n", ObjectID);
DataTableMappingCollection mappings = _tableMappings;
if (null == mappings) {
mappings = CreateTableMappings();
if (null == mappings) {
mappings = new DataTableMappingCollection();
}
_tableMappings = mappings;
}
return mappings; // constructed by base class
}
}
ITableMappingCollection IDataAdapter.TableMappings { // V1.0.3300
get {
return TableMappings;
}
}
virtual protected bool ShouldSerializeTableMappings() { // V1.0.3300, MDAC 65548
return true; /*HasTableMappings();*/ // VS7 300569
}
protected bool HasTableMappings() { // V1.2.3300
return ((null != _tableMappings) && (0 < TableMappings.Count));
}
[
ResCategoryAttribute(Res.DataCategory_Fill),
ResDescriptionAttribute(Res.DataAdapter_FillError),
]
public event FillErrorEventHandler FillError { // V1.2.3300, DbDataADapter V1.0.3300
add {
_hasFillErrorHandler = true;
Events.AddHandler(EventFillError, value);
}
remove {
Events.RemoveHandler(EventFillError, value);
}
}
[ Obsolete("CloneInternals() has been deprecated. Use the DataAdapter(DataAdapter from) constructor. http://go.microsoft.com/fwlink/?linkid=14202") ] // V1.1.3300, MDAC 81448
[System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.Demand, Name="FullTrust")] // MDAC 82936
virtual protected DataAdapter CloneInternals() { // V1.0.3300
DataAdapter clone = (DataAdapter)Activator.CreateInstance(GetType(), System.Reflection.BindingFlags.Public|System.Reflection.BindingFlags.Instance, null, null, CultureInfo.InvariantCulture, null);
clone.CloneFrom(this);
return clone;
}
private void CloneFrom(DataAdapter from) {
_acceptChangesDuringUpdate = from._acceptChangesDuringUpdate;
_acceptChangesDuringUpdateAfterInsert = from._acceptChangesDuringUpdateAfterInsert;
_continueUpdateOnError = from._continueUpdateOnError;
_returnProviderSpecificTypes = from._returnProviderSpecificTypes; // WebData 101795
_acceptChangesDuringFill = from._acceptChangesDuringFill;
_fillLoadOption = from._fillLoadOption;
_missingMappingAction = from._missingMappingAction;
_missingSchemaAction = from._missingSchemaAction;
if ((null != from._tableMappings) && (0 < from.TableMappings.Count)) {
DataTableMappingCollection parameters = this.TableMappings;
foreach(object parameter in from.TableMappings) {
parameters.Add((parameter is ICloneable) ? ((ICloneable)parameter).Clone() : parameter);
}
}
}
virtual protected DataTableMappingCollection CreateTableMappings() { // V1.0.3300
Bid.Trace("<comm.DataAdapter.CreateTableMappings|API> %d#\n", ObjectID);
return new DataTableMappingCollection();
}
override protected void Dispose(bool disposing) { // V1.0.3300, MDAC 65459
if (disposing) { // release mananged objects
_tableMappings = null;
}
// release unmanaged objects
base.Dispose(disposing); // notify base classes
}
virtual public DataTable[] FillSchema(DataSet dataSet, SchemaType schemaType) { // V1.0.3300
throw ADP.NotSupported();
}
virtual protected DataTable[] FillSchema(DataSet dataSet, SchemaType schemaType, string srcTable, IDataReader dataReader) { // V1.2.3300
IntPtr hscp;
Bid.ScopeEnter(out hscp, "<comm.DataAdapter.FillSchema|API> %d#, dataSet, schemaType=%d{ds.SchemaType}, srcTable, dataReader\n", ObjectID, (int)schemaType);
try {
if (null == dataSet) {
throw ADP.ArgumentNull("dataSet");
}
if ((SchemaType.Source != schemaType) && (SchemaType.Mapped != schemaType)) {
throw ADP.InvalidSchemaType(schemaType);
}
if (ADP.IsEmpty(srcTable)) {
throw ADP.FillSchemaRequiresSourceTableName("srcTable");
}
if ((null == dataReader) || dataReader.IsClosed) {
throw ADP.FillRequires("dataReader");
}
// user must Close/Dispose of the dataReader
object value = FillSchemaFromReader(dataSet, null, schemaType, srcTable, dataReader);
return (DataTable[]) value;
}
finally {
Bid.ScopeLeave(ref hscp);
}
}
virtual protected DataTable FillSchema(DataTable dataTable, SchemaType schemaType, IDataReader dataReader) { // V1.2.3300
IntPtr hscp;
Bid.ScopeEnter(out hscp, "<comm.DataAdapter.FillSchema|API> %d#, dataTable, schemaType, dataReader\n", ObjectID);
try {
if (null == dataTable) {
throw ADP.ArgumentNull("dataTable");
}
if ((SchemaType.Source != schemaType) && (SchemaType.Mapped != schemaType)) {
throw ADP.InvalidSchemaType(schemaType);
}
if ((null == dataReader) || dataReader.IsClosed) {
throw ADP.FillRequires("dataReader");
}
// user must Close/Dispose of the dataReader
// user will have to call NextResult to access remaining results
object value = FillSchemaFromReader(null, dataTable, schemaType, null, dataReader);
return (DataTable) value;
}
finally {
Bid.ScopeLeave(ref hscp);
}
}
internal object FillSchemaFromReader(DataSet dataset, DataTable datatable, SchemaType schemaType, string srcTable, IDataReader 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 (dataReader.NextResult()); // 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
}
virtual public int Fill(DataSet dataSet) { // V1.0.3300
throw ADP.NotSupported();
}
virtual protected int Fill(DataSet dataSet, string srcTable, IDataReader dataReader, int startRecord, int maxRecords) { // V1.2.3300, DbDataAdapter V1.0.3300
IntPtr hscp;
Bid.ScopeEnter(out hscp, "<comm.DataAdapter.Fill|API> %d#, dataSet, srcTable, dataReader, startRecord, maxRecords\n", ObjectID);
try {
if (null == dataSet) {
throw ADP.FillRequires("dataSet");
}
if (ADP.IsEmpty(srcTable)) {
throw ADP.FillRequiresSourceTableName("srcTable");
}
if (null == dataReader) {
throw ADP.FillRequires("dataReader");
}
if (startRecord < 0) {
throw ADP.InvalidStartRecord("startRecord", startRecord);
}
if (maxRecords < 0) {
throw ADP.InvalidMaxRecords("maxRecords", maxRecords);
}
if (dataReader.IsClosed) {
return 0;
}
// user must Close/Dispose of the dataReader
DataReaderContainer readerHandler = DataReaderContainer.Create(dataReader, ReturnProviderSpecificTypes);
return FillFromReader(dataSet, null, srcTable, readerHandler, startRecord, maxRecords, null, null);
}
finally {
Bid.ScopeLeave(ref hscp);
}
}
virtual protected int Fill(DataTable dataTable, IDataReader dataReader) { // V1.2.3300, DbDataADapter V1.0.3300
DataTable[] dataTables = new DataTable[] { dataTable };
return Fill(dataTables, dataReader, 0, 0);
}
virtual protected int Fill(DataTable[] dataTables, IDataReader dataReader, int startRecord, int maxRecords) { // V1.2.3300
IntPtr hscp;
Bid.ScopeEnter(out hscp, "<comm.DataAdapter.Fill|API> %d#, dataTables[], dataReader, startRecord, maxRecords\n", ObjectID);
try {
ADP.CheckArgumentLength(dataTables, "tables");
if ((null == dataTables) || (0 == dataTables.Length) || (null == dataTables[0])) {
throw ADP.FillRequires("dataTable");
}
if (null == dataReader) {
throw ADP.FillRequires("dataReader");
}
if ((1 < dataTables.Length) && ((0 != startRecord) || (0 != maxRecords))) {
throw ADP.NotSupported(); // FillChildren is not supported with FillPage
}
int result = 0;
bool enforceContraints = false;
DataSet commonDataSet = dataTables[0].DataSet;
try {
if (null != commonDataSet) {
enforceContraints = commonDataSet.EnforceConstraints;
commonDataSet.EnforceConstraints = false;
}
for(int i = 0; i < dataTables.Length; ++i) {
Debug.Assert(null != dataTables[i], "null DataTable Fill");
if (dataReader.IsClosed) {
#if DEBUG
Debug.Assert(!_debugHookNonEmptySelectCommand, "Debug hook asserts data reader should be open");
#endif
break;
}
DataReaderContainer readerHandler = DataReaderContainer.Create(dataReader, ReturnProviderSpecificTypes);
AssertReaderHandleFieldCount(readerHandler);
if (readerHandler.FieldCount <= 0) {
if (i == 0)
{
bool lastFillNextResult;
do {
lastFillNextResult = FillNextResult(readerHandler);
}
while (lastFillNextResult && readerHandler.FieldCount <= 0);
if (!lastFillNextResult) {
break;
}
}
else {
continue;
}
}
if ((0 < i) && !FillNextResult(readerHandler)) {
break;
}
// user must Close/Dispose of the dataReader
// user will have to call NextResult to access remaining results
int count = FillFromReader(null, dataTables[i], null, readerHandler, startRecord, maxRecords, null, null);
if (0 == i) {
result = count;
}
}
}
catch(ConstraintException) {
enforceContraints = false;
throw;
}
finally {
if (enforceContraints) {
commonDataSet.EnforceConstraints = true;
}
}
return result;
}
finally {
Bid.ScopeLeave(ref hscp);
}
}
internal int FillFromReader(DataSet dataset, DataTable datatable, string srcTable, DataReaderContainer dataReader, int startRecord, int maxRecords, DataColumn parentChapterColumn, object parentChapterValue) {
int rowsAddedToDataSet = 0;
int schemaCount = 0;
do {
AssertReaderHandleFieldCount(dataReader);
if (0 >= dataReader.FieldCount) {
continue; // loop to next result
}
SchemaMapping mapping = FillMapping(dataset, datatable, srcTable, dataReader, schemaCount, parentChapterColumn, parentChapterValue);
schemaCount++; // don't increment if no SchemaTable ( a non-row returning result )
AssertSchemaMapping(mapping);
if (null == mapping) {
continue; // loop to next result
}
if (null == mapping.DataValues) {
continue; // loop to next result
}
if (null == mapping.DataTable) {
continue; // loop to next result
}
mapping.DataTable.BeginLoadData();
try {
// startRecord and maxRecords only apply to the first resultset
if ((1 == schemaCount) && ((0 < startRecord) || (0 < maxRecords))) {
rowsAddedToDataSet = FillLoadDataRowChunk(mapping, startRecord, maxRecords);
}
else {
int count = FillLoadDataRow(mapping);
if (1 == schemaCount) { // MDAC 71347
// only return LoadDataRow count for first resultset
// not secondary or chaptered results
rowsAddedToDataSet = count;
}
}
}
finally {
mapping.DataTable.EndLoadData();
}
if (null != datatable) {
break; // do not read remaining results in single DataTable case
}
} while (FillNextResult(dataReader));
return rowsAddedToDataSet;
}
private int FillLoadDataRowChunk(SchemaMapping mapping, int startRecord, int maxRecords) {
DataReaderContainer dataReader = mapping.DataReader;
while (0 < startRecord) {
if (!dataReader.Read()) {
// there are no more rows on first resultset
return 0;
}
--startRecord;
}
int rowsAddedToDataSet = 0;
if (0 < maxRecords) {
while ((rowsAddedToDataSet < maxRecords) && dataReader.Read()) {
if (_hasFillErrorHandler) {
try {
mapping.LoadDataRowWithClear();
rowsAddedToDataSet++;
}
catch(Exception e) {
//
if (!ADP.IsCatchableExceptionType(e)) {
throw;
}
ADP.TraceExceptionForCapture(e);
OnFillErrorHandler(e, mapping.DataTable, mapping.DataValues);
}
}
else {
mapping.LoadDataRow();
rowsAddedToDataSet++;
}
}
// skip remaining rows of the first resultset
}
else {
rowsAddedToDataSet = FillLoadDataRow(mapping);
}
return rowsAddedToDataSet;
}
private int FillLoadDataRow(SchemaMapping mapping) {
int rowsAddedToDataSet = 0;
DataReaderContainer dataReader = mapping.DataReader;
if (_hasFillErrorHandler) {
while (dataReader.Read()) { // read remaining rows of first and subsequent resultsets
try {
// only try-catch if a FillErrorEventHandler is registered so that
// in the default case we get the full callstack from users
mapping.LoadDataRowWithClear();
rowsAddedToDataSet++;
}
catch(Exception e) {
//
if (!ADP.IsCatchableExceptionType(e)) {
throw;
}
ADP.TraceExceptionForCapture(e);
OnFillErrorHandler(e, mapping.DataTable, mapping.DataValues);
}
}
}
else {
while (dataReader.Read()) { // read remaining rows of first and subsequent resultset
mapping.LoadDataRow();
rowsAddedToDataSet++;
}
}
return rowsAddedToDataSet;
}
private SchemaMapping FillMappingInternal(DataSet dataset, DataTable datatable, string srcTable, DataReaderContainer dataReader, int schemaCount, DataColumn parentChapterColumn, object parentChapterValue) {
bool withKeyInfo = (Data.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);
}
private SchemaMapping FillMapping(DataSet dataset, DataTable datatable, string srcTable, DataReaderContainer dataReader, int schemaCount, DataColumn parentChapterColumn, object parentChapterValue) {
SchemaMapping mapping = null;
if (_hasFillErrorHandler) {
try {
// only try-catch if a FillErrorEventHandler is registered so that
// in the default case we get the full callstack from users
mapping = FillMappingInternal(dataset, datatable, srcTable, dataReader, schemaCount, parentChapterColumn, parentChapterValue);
}
catch(Exception e) {
//
if (!ADP.IsCatchableExceptionType(e)) {
throw;
}
ADP.TraceExceptionForCapture(e);
OnFillErrorHandler(e, null, null);
}
}
else {
mapping = FillMappingInternal(dataset, datatable, srcTable, dataReader, schemaCount, parentChapterColumn, parentChapterValue);
}
return mapping;
}
private bool FillNextResult(DataReaderContainer dataReader) {
bool result = true;
if (_hasFillErrorHandler) {
try {
// only try-catch if a FillErrorEventHandler is registered so that
// in the default case we get the full callstack from users
result = dataReader.NextResult();
}
catch(Exception e) {
//
if (!ADP.IsCatchableExceptionType(e)) {
throw;
}
ADP.TraceExceptionForCapture(e);
OnFillErrorHandler(e, null, null);
}
}
else {
result = dataReader.NextResult();
}
return result;
}
[ EditorBrowsableAttribute(EditorBrowsableState.Advanced) ] // MDAC 69508
virtual public IDataParameter[] GetFillParameters() { // V1.0.3300
return new IDataParameter[0];
}
internal DataTableMapping GetTableMappingBySchemaAction(string sourceTableName, string dataSetTableName, MissingMappingAction mappingAction) {
return DataTableMappingCollection.GetTableMappingBySchemaAction(_tableMappings, sourceTableName, dataSetTableName, mappingAction);
}
internal int IndexOfDataSetTable(string dataSetTable) {
if (null != _tableMappings) {
return TableMappings.IndexOfDataSetTable(dataSetTable);
}
return -1;
}
virtual protected void OnFillError(FillErrorEventArgs value) { // V1.2.3300, DbDataAdapter V1.0.3300
FillErrorEventHandler handler = (FillErrorEventHandler) Events[EventFillError];
if (null != handler) {
handler(this, value);
}
}
private void OnFillErrorHandler(Exception e, DataTable dataTable, object[] dataValues) {
FillErrorEventArgs fillErrorEvent = new FillErrorEventArgs(dataTable, dataValues);
fillErrorEvent.Errors = e;
OnFillError(fillErrorEvent);
if (!fillErrorEvent.Continue) {
if (null != fillErrorEvent.Errors) {
throw fillErrorEvent.Errors;
}
throw e;
}
}
virtual public int Update(DataSet dataSet) { // V1.0.3300
throw ADP.NotSupported();
}
// used by FillSchema which returns an array of datatables added to the dataset
static private DataTable[] AddDataTableToArray(DataTable[] tables, DataTable newTable) {
for (int i = 0; i < tables.Length; ++i) { // search for duplicates
if (tables[i] == newTable) {
return tables; // duplicate found
}
}
DataTable[] newTables = new DataTable[tables.Length+1]; // add unique data table
for (int i = 0; i < tables.Length; ++i) {
newTables[i] = tables[i];
}
newTables[tables.Length] = newTable;
return newTables;
}
// dynamically generate source table names
static private string GetSourceTableName(string srcTable, int index) {
//if ((null != srcTable) && (0 <= index) && (index < srcTable.Length)) {
if (0 == index) {
return srcTable; //[index];
}
return srcTable + index.ToString(System.Globalization.CultureInfo.InvariantCulture);
}
}
internal sealed class LoadAdapter : DataAdapter {
internal LoadAdapter() {
}
internal int FillFromReader(DataTable[] dataTables, IDataReader dataReader, int startRecord, int maxRecords) {
return Fill(dataTables, dataReader, startRecord, maxRecords);
}
}
}
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