public RecordStateFactory(int stateSlotNumber, int columnCount, RecordStateFactory[] nestedRecordStateFactories, DataRecordInfo dataRecordInfo, Expression gatherData, string[] propertyNames, TypeUsage[] typeUsages)
{
this.StateSlotNumber = stateSlotNumber;
this.ColumnCount = columnCount;
this.NestedRecordStateFactories = new System.Collections.ObjectModel.ReadOnlyCollection <RecordStateFactory>(nestedRecordStateFactories);
this.DataRecordInfo = dataRecordInfo;
this.GatherData = Translator.Compile <bool>(gatherData);
this.Description = gatherData.ToString();
this.ColumnNames = new System.Collections.ObjectModel.ReadOnlyCollection <string>(propertyNames);
this.TypeUsages = new System.Collections.ObjectModel.ReadOnlyCollection <TypeUsage>(typeUsages);
this.FieldNameLookup = new FieldNameLookup(this.ColumnNames, -1);
// pre-compute the nested objects from typeUsage, for performance
bool[] isColumnNested = new bool[columnCount];
for (int ordinal = 0; ordinal < columnCount; ordinal++)
{
switch (typeUsages[ordinal].EdmType.BuiltInTypeKind)
{
case BuiltInTypeKind.EntityType:
case BuiltInTypeKind.ComplexType:
case BuiltInTypeKind.RowType:
case BuiltInTypeKind.CollectionType:
isColumnNested[ordinal] = true;
this.HasNestedColumns = true;
break;
default:
isColumnNested[ordinal] = false;
break;
}
}
this.IsColumnNested = new System.Collections.ObjectModel.ReadOnlyCollection <bool>(isColumnNested);
}
internal DbDataRecord (SchemaInfo[] schema, object[] values, FieldNameLookup lookup)
{
this.schema = schema;
this.lookup = lookup;
this.values = values;
this.fieldCount = values.Length;
}
private void BuildSchemaInfo()
{
int fieldCount = this._reader.FieldCount;
string[] columnNameArray = new string[fieldCount];
for (int i = 0; i < fieldCount; i++)
{
columnNameArray[i] = this._reader.GetName(i);
}
ADP.BuildSchemaTableInfoTableNames(columnNameArray);
SchemaInfo[] infoArray = new SchemaInfo[fieldCount];
PropertyDescriptor[] properties = new PropertyDescriptor[this._reader.FieldCount];
for (int j = 0; j < infoArray.Length; j++)
{
SchemaInfo info = new SchemaInfo {
name = this._reader.GetName(j),
type = this._reader.GetFieldType(j),
typeName = this._reader.GetDataTypeName(j)
};
properties[j] = new DbColumnDescriptor(j, columnNameArray[j], info.type);
infoArray[j] = info;
}
this._schemaInfo = infoArray;
this._fieldNameLookup = new FieldNameLookup(this._reader, -1);
this._descriptors = new PropertyDescriptorCollection(properties);
}
// copy all runtime data information
internal DataRecordInternal(object[] values, PropertyDescriptorCollection descriptors, FieldNameLookup fieldNameLookup)
{
Debug.Assert(null != values, "invalid attempt to instantiate DataRecordInternal with null value[]");
_values = values;
_propertyDescriptors = descriptors;
_fieldNameLookup = fieldNameLookup;
}
internal DataRecordInternal(SchemaInfo[] schemaInfo, object[] values, PropertyDescriptorCollection descriptors, FieldNameLookup fieldNameLookup)
{
this._schemaInfo = schemaInfo;
this._values = values;
this._propertyDescriptors = descriptors;
this._fieldNameLookup = fieldNameLookup;
}
public override int GetOrdinal(string name)
{
if (this._fieldNameLookup == null)
{
this._fieldNameLookup = new FieldNameLookup((IDataRecord)this);
}
return(this._fieldNameLookup.GetOrdinal(name));
}
private FieldNameLookup _fieldNameLookup; // MDAC 69015
// copy all runtime data information
internal DataRecordInternal(SchemaInfo[] schemaInfo, object[] values, PropertyDescriptorCollection descriptors, FieldNameLookup fieldNameLookup) {
Debug.Assert(null != schemaInfo, "invalid attempt to instantiate DataRecordInternal with null schema information");
Debug.Assert(null != values, "invalid attempt to instantiate DataRecordInternal with null value[]");
_schemaInfo = schemaInfo;
_values = values;
_propertyDescriptors = descriptors;
_fieldNameLookup = fieldNameLookup;
}
public DbEnumerator (IDataReader reader, bool closeReader)
{
this.reader = reader;
this.closeReader = closeReader;
this.lookup = new FieldNameLookup ();
this.fieldCount = reader.FieldCount;
LoadSchema ();
}
/// <summary>
/// </summary>
public override int GetOrdinal(string name)
{
if (null == _fieldNameLookup)
{
_fieldNameLookup = new FieldNameLookup(this, -1);
}
return(_fieldNameLookup.GetOrdinal(name));
}
public override int GetOrdinal(string name)
{
this.EnsureCanGetMetaData("GetOrdinal");
if (this._fieldNameLookup == null)
{
this._fieldNameLookup = new FieldNameLookup(this, -1);
}
return(this._fieldNameLookup.GetOrdinal(name));
}
public T Get <T>(string name, T defaultValue = default(T))
{
if (!FieldNameLookup.ContainsKey(name))
{
return(default(T));
}
var index = FieldNameLookup[name];
return(Get(index, defaultValue));
}
public virtual int GetOrdinal(string name)
{
this.EnsureSubclassOverride();
if (this._fieldNameLookup == null)
{
string[] fieldNames = new string[this.FieldCount];
for (int i = 0; i < fieldNames.Length; i++)
{
fieldNames[i] = this.GetSqlMetaData(i).Name;
}
this._fieldNameLookup = new FieldNameLookup(fieldNames, -1);
}
return(this._fieldNameLookup.GetOrdinal(name));
}
/// <include file='../../../../../../../doc/snippets/Microsoft.Data.SqlClient.Server/SqlDataRecord.xml' path='docs/members[@name="SqlDataRecord"]/GetOrdinal/*' />
public virtual int GetOrdinal(string name)
{
if (_fieldNameLookup == null)
{
string[] names = new string[FieldCount];
for (int i = 0; i < names.Length; i++)
{
names[i] = GetSqlMetaData(i).Name;
}
_fieldNameLookup = new FieldNameLookup(names, -1);
}
return(_fieldNameLookup.GetOrdinal(name));
}
public virtual int GetOrdinal(string name)
{
EnsureSubclassOverride();
if (null == _fieldNameLookup)
{
string[] names = new string[FieldCount];
for (int i = 0; i < names.Length; i++)
{
names[i] = GetSqlMetaData(i).Name;
}
_fieldNameLookup = new FieldNameLookup(names, -1);
}
return(_fieldNameLookup.GetOrdinal(name));
}
private void MetaDataAvailable(SmiQueryMetaData[] md, bool nextEventIsRow)
{
this._currentMetaData = md;
this._hasRows = nextEventIsRow;
this._fieldNameLookup = null;
this._currentPosition = PositionState.BeforeRows;
this._indexMap = new int[this._currentMetaData.Length];
int index = 0;
for (int i = 0; i < this._currentMetaData.Length; i++)
{
if (!this._currentMetaData[i].IsHidden.IsTrue)
{
this._indexMap[index] = i;
index++;
}
}
this._visibleColumnCount = index;
}
public RecordStateFactory(
int stateSlotNumber,
int columnCount,
RecordStateFactory[] nestedRecordStateFactories,
DataRecordInfo dataRecordInfo,
Expression <Func <Shaper, bool> > gatherData,
string[] propertyNames,
TypeUsage[] typeUsages,
bool[] isColumnNested)
{
this.StateSlotNumber = stateSlotNumber;
this.ColumnCount = columnCount;
this.NestedRecordStateFactories = new ReadOnlyCollection <RecordStateFactory>((IList <RecordStateFactory>)nestedRecordStateFactories);
this.DataRecordInfo = dataRecordInfo;
this.GatherData = gatherData.Compile();
this.Description = gatherData.ToString();
this.ColumnNames = new ReadOnlyCollection <string>((IList <string>)propertyNames);
this.TypeUsages = new ReadOnlyCollection <TypeUsage>((IList <TypeUsage>)typeUsages);
this.FieldNameLookup = new FieldNameLookup(this.ColumnNames);
if (isColumnNested == null)
{
isColumnNested = new bool[columnCount];
for (int index = 0; index < columnCount; ++index)
{
switch (typeUsages[index].EdmType.BuiltInTypeKind)
{
case BuiltInTypeKind.CollectionType:
case BuiltInTypeKind.ComplexType:
case BuiltInTypeKind.EntityType:
case BuiltInTypeKind.RowType:
isColumnNested[index] = true;
this.HasNestedColumns = true;
break;
default:
isColumnNested[index] = false;
break;
}
}
}
this.IsColumnNested = new ReadOnlyCollection <bool>((IList <bool>)isColumnNested);
}
public RecordStateFactory(
int stateSlotNumber, int columnCount, RecordStateFactory[] nestedRecordStateFactories, DataRecordInfo dataRecordInfo,
Expression <Func <Shaper, bool> > gatherData, string[] propertyNames, TypeUsage[] typeUsages, bool[] isColumnNested)
{
StateSlotNumber = stateSlotNumber;
ColumnCount = columnCount;
NestedRecordStateFactories = new ReadOnlyCollection <RecordStateFactory>(nestedRecordStateFactories);
DataRecordInfo = dataRecordInfo;
GatherData = gatherData.Compile();
Description = gatherData.ToString();
ColumnNames = new ReadOnlyCollection <string>(propertyNames);
TypeUsages = new ReadOnlyCollection <TypeUsage>(typeUsages);
FieldNameLookup = new FieldNameLookup(ColumnNames);
// pre-compute the nested objects from typeUsage, for performance
if (isColumnNested == null)
{
isColumnNested = new bool[columnCount];
for (var ordinal = 0; ordinal < columnCount; ordinal++)
{
switch (typeUsages[ordinal].EdmType.BuiltInTypeKind)
{
case BuiltInTypeKind.EntityType:
case BuiltInTypeKind.ComplexType:
case BuiltInTypeKind.RowType:
case BuiltInTypeKind.CollectionType:
isColumnNested[ordinal] = true;
HasNestedColumns = true;
break;
default:
isColumnNested[ordinal] = false;
break;
}
}
}
IsColumnNested = new ReadOnlyCollection <bool>(isColumnNested);
}
private void CloseInternal(bool closeReader)
{
TdsParser parser = this._parser;
TdsParserStateObject stateObj = this._stateObj;
bool flag2 = this.IsCommandBehavior(CommandBehavior.CloseConnection);
this._parser = null;
bool flag = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
if (((parser != null) && (stateObj != null)) && (stateObj._pendingData && (parser.State == TdsParserState.OpenLoggedIn)))
{
if (this._altRowStatus == ALTROWSTATUS.AltRow)
{
this._dataReady = true;
}
if (this._dataReady)
{
this.CleanPartialRead();
}
parser.Run(RunBehavior.Clean, this._command, this, null, stateObj);
}
this.RestoreServerSettings(parser, stateObj);
}
catch (OutOfMemoryException exception6)
{
this._isClosed = true;
flag = true;
if (this._connection != null)
{
this._connection.Abort(exception6);
}
throw;
}
catch (StackOverflowException exception5)
{
this._isClosed = true;
flag = true;
if (this._connection != null)
{
this._connection.Abort(exception5);
}
throw;
}
catch (ThreadAbortException exception4)
{
this._isClosed = true;
flag = true;
if (this._connection != null)
{
this._connection.Abort(exception4);
}
throw;
}
finally
{
if (flag)
{
this._isClosed = true;
this._command = null;
this._connection = null;
this._statistics = null;
}
else if (closeReader)
{
this._stateObj = null;
this._data = null;
if (this.Connection != null)
{
this.Connection.RemoveWeakReference(this);
}
RuntimeHelpers.PrepareConstrainedRegions();
try
{
if ((this._command != null) && (stateObj != null))
{
stateObj.CloseSession();
}
}
catch (OutOfMemoryException exception3)
{
this._isClosed = true;
flag = true;
if (this._connection != null)
{
this._connection.Abort(exception3);
}
throw;
}
catch (StackOverflowException exception2)
{
this._isClosed = true;
flag = true;
if (this._connection != null)
{
this._connection.Abort(exception2);
}
throw;
}
catch (ThreadAbortException exception)
{
this._isClosed = true;
flag = true;
if (this._connection != null)
{
this._connection.Abort(exception);
}
throw;
}
this.SetMetaData(null, false);
this._dataReady = false;
this._isClosed = true;
this._fieldNameLookup = null;
if (flag2 && (this.Connection != null))
{
this.Connection.Close();
}
if (this._command != null)
{
this._recordsAffected = this._command.InternalRecordsAffected;
}
this._command = null;
this._connection = null;
this._statistics = null;
}
}
}
private void ClearMetaData()
{
this._metaData = null;
this._tableNames = null;
this._fieldNameLookup = null;
this._metaDataConsumed = false;
this._browseModeInfoConsumed = false;
}
override public Int32 GetOrdinal(String name) {
if (null == _fieldNameLookup) {
if (null == _metadata) {
throw ADP.DataReaderNoData();
}
_fieldNameLookup = new FieldNameLookup(this, -1);
}
return _fieldNameLookup.GetOrdinal(name); // MDAC 71470
}
internal void DumpToSchemaTable(UnsafeNativeMethods.IRowset rowset) {
List<MetaData> metainfo = new List<MetaData>();
object hiddenColumns = null;
using (OleDbDataReader dataReader = new OleDbDataReader(_connection, _command, Int32.MinValue, 0)) {
dataReader.InitializeIRowset(rowset, ChapterHandle.DB_NULL_HCHAPTER, IntPtr.Zero);
dataReader.BuildSchemaTableInfo(rowset, true, false);
hiddenColumns = GetPropertyValue(ODB.DBPROP_HIDDENCOLUMNS); // MDAC 55611, 72106
if (0 == dataReader.FieldCount) {
return;
}
Debug.Assert(null == dataReader._fieldNameLookup, "lookup already exists");
FieldNameLookup lookup = new FieldNameLookup(dataReader, -1);
dataReader._fieldNameLookup = lookup;
// This column, together with the DBCOLUMN_GUID and DBCOLUMN_PROPID
// columns, forms the ID of the column. One or more (but not all) of these columns
// will be NULL, depending on which elements of the DBID structure the provider uses.
MetaData columnidname = dataReader.FindMetaData(ODB.DBCOLUMN_IDNAME);
MetaData columnguid = dataReader.FindMetaData(ODB.DBCOLUMN_GUID);
MetaData columnpropid = dataReader.FindMetaData(ODB.DBCOLUMN_PROPID);
MetaData columnname = dataReader.FindMetaData(ODB.DBCOLUMN_NAME);
MetaData columnordinal = dataReader.FindMetaData(ODB.DBCOLUMN_NUMBER);
MetaData dbtype = dataReader.FindMetaData(ODB.DBCOLUMN_TYPE);
MetaData columnsize = dataReader.FindMetaData(ODB.DBCOLUMN_COLUMNSIZE);
MetaData numericprecision = dataReader.FindMetaData(ODB.DBCOLUMN_PRECISION);
MetaData numericscale = dataReader.FindMetaData(ODB.DBCOLUMN_SCALE);
MetaData columnflags = dataReader.FindMetaData(ODB.DBCOLUMN_FLAGS);
MetaData baseschemaname = dataReader.FindMetaData(ODB.DBCOLUMN_BASESCHEMANAME);
MetaData basecatalogname = dataReader.FindMetaData(ODB.DBCOLUMN_BASECATALOGNAME);
MetaData basetablename = dataReader.FindMetaData(ODB.DBCOLUMN_BASETABLENAME);
MetaData basecolumnname = dataReader.FindMetaData(ODB.DBCOLUMN_BASECOLUMNNAME);
MetaData isautoincrement = dataReader.FindMetaData(ODB.DBCOLUMN_ISAUTOINCREMENT);
MetaData isunique = dataReader.FindMetaData(ODB.DBCOLUMN_ISUNIQUE);
MetaData iskeycolumn = dataReader.FindMetaData(ODB.DBCOLUMN_KEYCOLUMN);
// @devnote: because we want to use the DBACCESSOR_OPTIMIZED bit,
// we are required to create the accessor before fetching any rows
dataReader.CreateAccessors(false);
ColumnBinding binding;
while (dataReader.ReadRowset()) {
dataReader.GetRowDataFromHandle();
MetaData info = new MetaData();
binding = columnidname.columnBinding; // MDAC 72627
if (!binding.IsValueNull()) {
info.idname = (string)binding.Value();
info.kind = ODB.DBKIND_NAME;
}
binding = columnguid.columnBinding;
if (!binding.IsValueNull()) {
info.guid = binding.Value_GUID();
info.kind = ((ODB.DBKIND_NAME == info.kind) ? ODB.DBKIND_GUID_NAME : ODB.DBKIND_GUID);
}
binding = columnpropid.columnBinding;
if (!binding.IsValueNull()) {
info.propid = new IntPtr(binding.Value_UI4());
info.kind = ((ODB.DBKIND_GUID == info.kind) ? ODB.DBKIND_GUID_PROPID : ODB.DBKIND_PROPID);
}
binding = columnname.columnBinding;
if (!binding.IsValueNull()) {
info.columnName = (string)binding.Value();
}
else {
info.columnName = "";
}
if (4 == ADP.PtrSize) {
info.ordinal = (IntPtr)columnordinal.columnBinding.Value_UI4();
}
else {
info.ordinal = (IntPtr)columnordinal.columnBinding.Value_UI8();
}
short wType = unchecked((short) dbtype.columnBinding.Value_UI2());
if (4 == ADP.PtrSize) {
info.size = unchecked((int) columnsize.columnBinding.Value_UI4()); // WebData 99298
}
else {
info.size = ADP.IntPtrToInt32((IntPtr)unchecked((long)columnsize.columnBinding.Value_UI8()));
}
binding = numericprecision.columnBinding;
if (!binding.IsValueNull()) {
info.precision = (byte)binding.Value_UI2();
}
binding = numericscale.columnBinding;
if (!binding.IsValueNull()) {
info.scale = (byte)binding.Value_I2();
}
info.flags = unchecked((int) columnflags.columnBinding.Value_UI4());
bool islong = OleDbDataReader.IsLong(info.flags);
bool isfixed = OleDbDataReader.IsFixed(info.flags);
NativeDBType dbType = NativeDBType.FromDBType(wType, islong, isfixed);
info.type = dbType;
if (null != isautoincrement) {
binding = isautoincrement.columnBinding;
if (!binding.IsValueNull()) {
info.isAutoIncrement = binding.Value_BOOL();
}
}
if (null != isunique) {
binding = isunique.columnBinding;
if (!binding.IsValueNull()) {
info.isUnique = binding.Value_BOOL();
}
}
if (null != iskeycolumn) {
binding = iskeycolumn.columnBinding;
if (!binding.IsValueNull()) {
info.isKeyColumn = binding.Value_BOOL();
}
}
if (null != baseschemaname) {
binding = baseschemaname.columnBinding;
if (!binding.IsValueNull()) {
info.baseSchemaName = binding.ValueString();
}
}
if (null != basecatalogname) {
binding = basecatalogname.columnBinding;
if (!binding.IsValueNull()) {
info.baseCatalogName = binding.ValueString();
}
}
if (null != basetablename) {
binding = basetablename.columnBinding;
if (!binding.IsValueNull()) {
info.baseTableName = binding.ValueString();
}
}
if (null != basecolumnname) {
binding = basecolumnname.columnBinding;
if (!binding.IsValueNull()) {
info.baseColumnName = binding.ValueString();
}
}
metainfo.Add(info);
}
}
int visibleCount = metainfo.Count;
if (hiddenColumns is Int32) {
visibleCount -= (int)hiddenColumns;
}
// VSTFDevDiv 479578:
// if one key column is invalidated, they all need to be invalidated. The SET is the key,
// and subsets likely are not accurate keys. Note the assumption that the two loops below
// will traverse the entire set of columns.
bool disallowKeyColumns = false;
for (int index = metainfo.Count - 1; visibleCount <= index; --index) {
MetaData info = metainfo[index];
info.isHidden = true;
if (disallowKeyColumns) {
info.isKeyColumn = false;
}
else if (info.guid.Equals(ODB.DBCOL_SPECIALCOL)) { // MDAC 90827
info.isKeyColumn = false;
// This is the first key column to be invalidated, scan back through the
// columns we already processed to make sure none of those are marked as keys.
disallowKeyColumns = true;
for (int index2 = metainfo.Count-1; index < index2; --index2) {
metainfo[index2].isKeyColumn = false;
}
}
}
for (int index = visibleCount - 1; 0 <= index; --index) {
MetaData info = metainfo[index];
if (disallowKeyColumns) {
info.isKeyColumn = false;
}
if (info.guid.Equals(ODB.DBCOL_SPECIALCOL)) { // MDAC 72390
#if DEBUG
if (AdapterSwitches.DataSchema.TraceVerbose) {
Debug.WriteLine("Filtered Column: DBCOLUMN_GUID=DBCOL_SPECIALCOL DBCOLUMN_NAME=" + info.columnName + " DBCOLUMN_KEYCOLUMN=" + info.isKeyColumn);
}
#endif
info.isHidden = true;
visibleCount--;
}
#if WIN32
else if (0 >= (int)info.ordinal) {
#else
else if (0 >= (long)info.ordinal) {
#endif
#if DEBUG
if (AdapterSwitches.DataSchema.TraceVerbose) {
Debug.WriteLine("Filtered Column: DBCOLUMN_NUMBER=" + info.ordinal.ToInt64().ToString(CultureInfo.InvariantCulture) + " DBCOLUMN_NAME=" + info.columnName);
}
#endif
info.isHidden = true;
visibleCount--;
}
else if (OleDbDataReader.DoColumnDropFilter(info.flags)) {
#if DEBUG
if (AdapterSwitches.DataSchema.TraceVerbose) {
Debug.WriteLine("Filtered Column: DBCOLUMN_FLAGS=" + info.flags.ToString("X8", (System.IFormatProvider)null) + " DBCOLUMN_NAME=" + info.columnName);
}
#endif
info.isHidden = true;
visibleCount--;
}
}
//
metainfo.Sort(); // MDAC 68319
_visibleFieldCount = visibleCount;
_metadata = metainfo.ToArray();
}
public virtual int GetOrdinal( string name ) {
EnsureSubclassOverride();
if (null == _fieldNameLookup) {
string[] names = new string [ FieldCount ];
for( int i=0; i < names.Length; i++ ) {
names[i] = GetSqlMetaData( i ).Name;
}
_fieldNameLookup = new FieldNameLookup( names, -1 ); //
}
return _fieldNameLookup.GetOrdinal( name );
}
private bool NextResult(bool disposing, bool allresults) {
// if disposing, loop through all the remaining results and ignore error messages
// if allresults, loop through all results and collect all error messages for a single exception
// callers are via Close(false, true), Dispose(true, false), NextResult(false,false)
Debug.Assert(!disposing || !allresults, "both disposing & allresults are true");
const int MaxConsecutiveFailure = 2000; // see WebData 72126 for why more than 1000
SQLLEN cRowsAffected;
Int16 cColsAffected;
ODBC32.RetCode retcode, firstRetCode = ODBC32.RetCode.SUCCESS;
bool hasMoreResults;
bool hasColumns = false;
bool singleResult = IsCommandBehavior(CommandBehavior.SingleResult);
if (IsClosed) {
throw ADP.DataReaderClosed("NextResult");
}
_fieldNameLookup = null;
if (IsCancelingCommand || _noMoreResults) {
return false;
}
//Blow away the previous cache (since the next result set will have a different shape,
//different schema data, and different data.
_isRead = false;
_hasRows = HasRowsStatus.DontKnow;
_fieldNameLookup = null;
this.metadata = null;
this.schemaTable = null;
int loop = 0; // infinite loop protection, max out after 2000 consecutive failed results
OdbcErrorCollection errors = null; // SQLBU 342112
do {
_isValidResult = false;
retcode = StatementHandle.MoreResults();
hasMoreResults = ((retcode == ODBC32.RetCode.SUCCESS)
||(retcode == ODBC32.RetCode.SUCCESS_WITH_INFO));
if (retcode == ODBC32.RetCode.SUCCESS_WITH_INFO) {
Connection.HandleErrorNoThrow(StatementHandle, retcode);
}
else if (!disposing && (retcode != ODBC32.RetCode.NO_DATA) && (ODBC32.RetCode.SUCCESS != retcode)) {
// allow for building comulative error messages.
if (null == errors) {
firstRetCode = retcode;
errors = new OdbcErrorCollection();
}
ODBC32.GetDiagErrors(errors, null, StatementHandle, retcode);
++loop;
}
if (!disposing && hasMoreResults) {
loop = 0;
cRowsAffected = GetRowCount(); // get rowcount of the current resultset (if any)
CalculateRecordsAffected(cRowsAffected); // update recordsaffected
if (!singleResult) {
// update row- and columncount
FieldCountNoThrow(out cColsAffected);
hasColumns = (0 != cColsAffected);
_isValidResult = hasColumns;
}
}
} while ((!singleResult && hasMoreResults && !hasColumns) // repeat for results with no columns
|| ((ODBC32.RetCode.NO_DATA != retcode) && allresults && (loop < MaxConsecutiveFailure)) // or process all results until done
|| (singleResult && hasMoreResults)); // or for any result in singelResult mode
if (MaxConsecutiveFailure <= loop) {
Bid.Trace("<odbc.OdbcDataReader.NextResult|INFO> 2000 consecutive failed results");
}
if(retcode == ODBC32.RetCode.NO_DATA) {
this.dataCache = null;
_noMoreResults = true;
}
if (null != errors) {
Debug.Assert(!disposing, "errors while disposing");
errors.SetSource(Connection.Driver);
OdbcException exception = OdbcException.CreateException(errors, firstRetCode);
Connection.ConnectionIsAlive(exception);
throw exception;
}
return (hasMoreResults);
}
/// <summary>
///
/// </summary>
public override int GetOrdinal(string name)
{
if (null == _fieldNameLookup)
{
_fieldNameLookup = new FieldNameLookup(this, -1);
}
return _fieldNameLookup.GetOrdinal(name);
}
private void DisposeManagedRowset()
{
this._isRead = false;
this._hasRowsReadCheck = false;
this._nextAccessorForRetrieval = 0;
this._nextValueForRetrieval = 0;
Bindings[] bindingsArray = this._bindings;
this._bindings = null;
if (bindingsArray != null)
{
for (int i = 0; i < bindingsArray.Length; i++)
{
if (bindingsArray[i] != null)
{
bindingsArray[i].Dispose();
}
}
}
this._currentRow = 0;
this._rowFetchedCount = IntPtr.Zero;
this._dbSchemaTable = null;
this._visibleFieldCount = 0;
this._metadata = null;
this._fieldNameLookup = null;
}
private void MetaDataAvailable(SmiQueryMetaData[] md, bool nextEventIsRow)
{
this._currentMetaData = md;
this._hasRows = nextEventIsRow;
this._fieldNameLookup = null;
this._currentPosition = PositionState.BeforeRows;
this._indexMap = new int[this._currentMetaData.Length];
int index = 0;
for (int i = 0; i < this._currentMetaData.Length; i++)
{
if (!this._currentMetaData[i].IsHidden.IsTrue)
{
this._indexMap[index] = i;
index++;
}
}
this._visibleColumnCount = index;
}
public RecordStateFactory(int stateSlotNumber, int columnCount, RecordStateFactory[] nestedRecordStateFactories, DataRecordInfo dataRecordInfo, Expression gatherData, string[] propertyNames, TypeUsage[] typeUsages)
{
this.StateSlotNumber = stateSlotNumber;
this.ColumnCount = columnCount;
this.NestedRecordStateFactories = new System.Collections.ObjectModel.ReadOnlyCollection<RecordStateFactory>(nestedRecordStateFactories);
this.DataRecordInfo = dataRecordInfo;
this.GatherData = Translator.Compile<bool>(gatherData);
this.Description = gatherData.ToString();
this.ColumnNames = new System.Collections.ObjectModel.ReadOnlyCollection<string>(propertyNames);
this.TypeUsages = new System.Collections.ObjectModel.ReadOnlyCollection<TypeUsage>(typeUsages);
this.FieldNameLookup = new FieldNameLookup(this.ColumnNames, -1);
// pre-compute the nested objects from typeUsage, for performance
bool[] isColumnNested = new bool[columnCount];
for (int ordinal = 0; ordinal < columnCount; ordinal++)
{
switch (typeUsages[ordinal].EdmType.BuiltInTypeKind)
{
case BuiltInTypeKind.EntityType:
case BuiltInTypeKind.ComplexType:
case BuiltInTypeKind.RowType:
case BuiltInTypeKind.CollectionType:
isColumnNested[ordinal] = true;
this.HasNestedColumns = true;
break;
default:
isColumnNested[ordinal] = false;
break;
}
}
this.IsColumnNested = new System.Collections.ObjectModel.ReadOnlyCollection<bool>(isColumnNested);
}
private void BuildSchemaInfo() {
int count = _reader.FieldCount;
string[] fieldnames = new string[count];
for (int i = 0; i < count; ++i) {
fieldnames[i] = _reader.GetName(i);
}
ADP.BuildSchemaTableInfoTableNames(fieldnames); // MDAC 71401
SchemaInfo[] si = new SchemaInfo[count];
PropertyDescriptor[] props = new PropertyDescriptor[_reader.FieldCount];
for (int i = 0; i < si.Length; i++) {
SchemaInfo s = new SchemaInfo();
s.name = _reader.GetName(i);
s.type = _reader.GetFieldType(i);
s.typeName = _reader.GetDataTypeName(i);
props[i] = new DbColumnDescriptor(i, fieldnames[i], s.type);
si[i] = s;
}
_schemaInfo = si;
_fieldNameLookup = new FieldNameLookup(_reader, -1); // MDAC 71470
_descriptors = new PropertyDescriptorCollection(props);
}
private void BuildSchemaInfo()
{
int count = _reader.FieldCount;
string[] fieldnames = new string[count];
for (int i = 0; i < count; ++i)
{
fieldnames[i] = _reader.GetName(i);
}
ADP.BuildSchemaTableInfoTableNames(fieldnames);
SchemaInfo[] si = new SchemaInfo[count];
for (int i = 0; i < si.Length; i++)
{
SchemaInfo s = new SchemaInfo();
s.name = _reader.GetName(i);
s.type = _reader.GetFieldType(i);
s.typeName = _reader.GetDataTypeName(i);
si[i] = s;
}
_schemaInfo = si;
_fieldNameLookup = new FieldNameLookup(_reader, -1);
}
public override bool NextResult()
{
bool flag2;
IntPtr ptr2;
Bid.ScopeEnter(out ptr2, "<oledb.OleDbDataReader.NextResult|API> %d#\n", this.ObjectID);
try
{
bool flag = false;
if (this.IsClosed)
{
throw ADP.DataReaderClosed("NextResult");
}
this._fieldNameLookup = null;
OleDbCommand command = this._command;
UnsafeNativeMethods.IMultipleResults results = this._imultipleResults;
if (results != null)
{
this.DisposeOpenResults();
this._hasRows = false;
do
{
IntPtr ptr;
object ppRowset = null;
if ((command != null) && command.canceling)
{
this.Close();
goto Label_0116;
}
Bid.Trace("<oledb.IMultipleResults.GetResult|API|OLEDB> %d#, IID_IRowset\n", this.ObjectID);
OleDbHResult result = results.GetResult(ADP.PtrZero, ODB.DBRESULTFLAG_DEFAULT, ref ODB.IID_IRowset, out ptr, out ppRowset);
Bid.Trace("<oledb.IMultipleResults.GetResult|API|OLEDB|RET> %08X{HRESULT}, RecordAffected=%Id\n", result, ptr);
if ((OleDbHResult.S_OK <= result) && (ppRowset != null))
{
Bid.Trace("<oledb.IUnknown.QueryInterface|API|OLEDB|RowSet> %d#, IRowset\n", this.ObjectID);
this._irowset = (System.Data.Common.UnsafeNativeMethods.IRowset) ppRowset;
}
this._recordsAffected = AddRecordsAffected(this._recordsAffected, ptr);
if (OleDbHResult.DB_S_NORESULT == result)
{
this.DisposeNativeMultipleResults();
goto Label_0116;
}
this.ProcessResults(result);
}
while (this._irowset == null);
this.BuildMetaInfo();
this.HasRowsRead();
flag = true;
}
else
{
this.DisposeOpenResults();
this._hasRows = false;
}
Label_0116:
flag2 = flag;
}
finally
{
Bid.ScopeLeave(ref ptr2);
}
return flag2;
}
override public bool NextResult() {
IntPtr hscp;
Bid.ScopeEnter(out hscp, "<oledb.OleDbDataReader.NextResult|API> %d#\n", ObjectID);
try {
bool retflag = false;
if (IsClosed) {
throw ADP.DataReaderClosed("NextResult");
}
_fieldNameLookup = null;
OleDbCommand command = _command;
UnsafeNativeMethods.IMultipleResults imultipleResults = _imultipleResults;
if (null != imultipleResults) {
DisposeOpenResults();
_hasRows = false;
for (;;) {
Debug.Assert(null == _irow, "NextResult: row loop check");
Debug.Assert(null == _irowset, "NextResult: rowset loop check");
object result = null;
OleDbHResult hr;
IntPtr affected;
if ((null != command) && command.canceling) { // MDAC 69986
Close();
break;
}
Bid.Trace("<oledb.IMultipleResults.GetResult|API|OLEDB> %d#, IID_IRowset\n", ObjectID);
hr = imultipleResults.GetResult(ADP.PtrZero, ODB.DBRESULTFLAG_DEFAULT, ref ODB.IID_IRowset, out affected, out result);
Bid.Trace("<oledb.IMultipleResults.GetResult|API|OLEDB|RET> %08X{HRESULT}, RecordAffected=%Id\n", hr, affected);
if ((0 <= hr) && (null != result)) {
Bid.Trace("<oledb.IUnknown.QueryInterface|API|OLEDB|RowSet> %d#, IRowset\n", ObjectID);
_irowset = (UnsafeNativeMethods.IRowset) result;
}
_recordsAffected = AddRecordsAffected(_recordsAffected, affected);
if (OleDbHResult.DB_S_NORESULT == hr) {
DisposeNativeMultipleResults();
break;
}
// @devnote: infomessage events may be fired from here
ProcessResults(hr);
if (null != _irowset) {
BuildMetaInfo();
HasRowsRead();
retflag = true;
break;
}
}
}
else {
DisposeOpenResults(); // MDAC 70934
_hasRows = false; // MDAC 85850
}
return retflag;
}
finally {
Bid.ScopeLeave(ref hscp);
}
}
public override int GetOrdinal(string name)
{
if (this._fieldNameLookup == null)
{
if (this._metadata == null)
{
throw ADP.DataReaderNoData();
}
this._fieldNameLookup = new FieldNameLookup(this, -1);
}
return this._fieldNameLookup.GetOrdinal(name);
}
private void DisposeManagedRowset() {
//not cleared after last rowset
//_hasRows = false;
_isRead = false;
_hasRowsReadCheck = false;
_nextAccessorForRetrieval = 0;
_nextValueForRetrieval = 0;
Bindings[] bindings = _bindings;
_bindings = null;
if (null != bindings) {
for (int i = 0; i < bindings.Length; ++i) {
if (null != bindings[i]) { // MDAC 77007
bindings[i].Dispose();
}
}
}
_currentRow = 0;
_rowFetchedCount = IntPtr.Zero;
_dbSchemaTable = null;
_visibleFieldCount = 0;
_metadata = null;
_fieldNameLookup = null;
}
internal void SetMetaData(_SqlMetaDataSet metaData, bool moreInfo)
{
this._metaData = metaData;
this._tableNames = null;
if (this._metaData != null)
{
this._metaData.schemaTable = null;
this._data = SqlBuffer.CreateBufferArray(metaData.Length);
}
this._fieldNameLookup = null;
if (metaData != null)
{
if (!moreInfo)
{
this._metaDataConsumed = true;
if (this._parser != null)
{
byte num = this._stateObj.PeekByte();
if (num == 0xa9)
{
this._parser.Run(RunBehavior.ReturnImmediately, null, null, null, this._stateObj);
num = this._stateObj.PeekByte();
}
this._hasRows = 0xd1 == num;
if (0x88 == num)
{
this._metaDataConsumed = false;
}
}
}
}
else
{
this._metaDataConsumed = false;
}
this._browseModeInfoConsumed = false;
}
public override int GetOrdinal(string name)
{
SqlStatistics statistics = null;
int ordinal;
try
{
statistics = SqlStatistics.StartTimer(this.Statistics);
if (this._fieldNameLookup == null)
{
if (this.MetaData == null)
{
throw SQL.InvalidRead();
}
this._fieldNameLookup = new FieldNameLookup(this, this._defaultLCID);
}
ordinal = this._fieldNameLookup.GetOrdinal(name);
}
finally
{
SqlStatistics.StopTimer(statistics);
}
return ordinal;
}
internal void DumpToSchemaTable(System.Data.Common.UnsafeNativeMethods.IRowset rowset)
{
List<System.Data.OleDb.MetaData> list = new List<System.Data.OleDb.MetaData>();
object propertyValue = null;
using (OleDbDataReader reader = new OleDbDataReader(this._connection, this._command, -2147483648, CommandBehavior.Default))
{
reader.InitializeIRowset(rowset, ChapterHandle.DB_NULL_HCHAPTER, IntPtr.Zero);
reader.BuildSchemaTableInfo(rowset, true, false);
propertyValue = this.GetPropertyValue(0x102);
if (reader.FieldCount == 0)
{
return;
}
FieldNameLookup lookup = new FieldNameLookup(reader, -1);
reader._fieldNameLookup = lookup;
System.Data.OleDb.MetaData data20 = reader.FindMetaData("DBCOLUMN_IDNAME");
System.Data.OleDb.MetaData data19 = reader.FindMetaData("DBCOLUMN_GUID");
System.Data.OleDb.MetaData data18 = reader.FindMetaData("DBCOLUMN_PROPID");
System.Data.OleDb.MetaData data17 = reader.FindMetaData("DBCOLUMN_NAME");
System.Data.OleDb.MetaData data12 = reader.FindMetaData("DBCOLUMN_NUMBER");
System.Data.OleDb.MetaData data16 = reader.FindMetaData("DBCOLUMN_TYPE");
System.Data.OleDb.MetaData data11 = reader.FindMetaData("DBCOLUMN_COLUMNSIZE");
System.Data.OleDb.MetaData data15 = reader.FindMetaData("DBCOLUMN_PRECISION");
System.Data.OleDb.MetaData data14 = reader.FindMetaData("DBCOLUMN_SCALE");
System.Data.OleDb.MetaData data13 = reader.FindMetaData("DBCOLUMN_FLAGS");
System.Data.OleDb.MetaData data10 = reader.FindMetaData("DBCOLUMN_BASESCHEMANAME");
System.Data.OleDb.MetaData data9 = reader.FindMetaData("DBCOLUMN_BASECATALOGNAME");
System.Data.OleDb.MetaData data8 = reader.FindMetaData("DBCOLUMN_BASETABLENAME");
System.Data.OleDb.MetaData data7 = reader.FindMetaData("DBCOLUMN_BASECOLUMNNAME");
System.Data.OleDb.MetaData data6 = reader.FindMetaData("DBCOLUMN_ISAUTOINCREMENT");
System.Data.OleDb.MetaData data5 = reader.FindMetaData("DBCOLUMN_ISUNIQUE");
System.Data.OleDb.MetaData data4 = reader.FindMetaData("DBCOLUMN_KEYCOLUMN");
reader.CreateAccessors(false);
while (reader.ReadRowset())
{
reader.GetRowDataFromHandle();
System.Data.OleDb.MetaData item = new System.Data.OleDb.MetaData();
ColumnBinding columnBinding = data20.columnBinding;
if (!columnBinding.IsValueNull())
{
item.idname = (string) columnBinding.Value();
item.kind = 2;
}
columnBinding = data19.columnBinding;
if (!columnBinding.IsValueNull())
{
item.guid = columnBinding.Value_GUID();
item.kind = (2 == item.kind) ? 0 : 6;
}
columnBinding = data18.columnBinding;
if (!columnBinding.IsValueNull())
{
item.propid = new IntPtr((long) columnBinding.Value_UI4());
item.kind = (6 == item.kind) ? 1 : 5;
}
columnBinding = data17.columnBinding;
if (!columnBinding.IsValueNull())
{
item.columnName = (string) columnBinding.Value();
}
else
{
item.columnName = "";
}
if (4 == ADP.PtrSize)
{
item.ordinal = (IntPtr) data12.columnBinding.Value_UI4();
}
else
{
item.ordinal = (IntPtr) data12.columnBinding.Value_UI8();
}
short dbType = (short) data16.columnBinding.Value_UI2();
if (4 == ADP.PtrSize)
{
item.size = (int) data11.columnBinding.Value_UI4();
}
else
{
item.size = ADP.IntPtrToInt32((IntPtr) data11.columnBinding.Value_UI8());
}
columnBinding = data15.columnBinding;
if (!columnBinding.IsValueNull())
{
item.precision = (byte) columnBinding.Value_UI2();
}
columnBinding = data14.columnBinding;
if (!columnBinding.IsValueNull())
{
item.scale = (byte) columnBinding.Value_I2();
}
item.flags = (int) data13.columnBinding.Value_UI4();
bool isLong = IsLong(item.flags);
bool isFixed = IsFixed(item.flags);
NativeDBType type = NativeDBType.FromDBType(dbType, isLong, isFixed);
item.type = type;
if (data6 != null)
{
columnBinding = data6.columnBinding;
if (!columnBinding.IsValueNull())
{
item.isAutoIncrement = columnBinding.Value_BOOL();
}
}
if (data5 != null)
{
columnBinding = data5.columnBinding;
if (!columnBinding.IsValueNull())
{
item.isUnique = columnBinding.Value_BOOL();
}
}
if (data4 != null)
{
columnBinding = data4.columnBinding;
if (!columnBinding.IsValueNull())
{
item.isKeyColumn = columnBinding.Value_BOOL();
}
}
if (data10 != null)
{
columnBinding = data10.columnBinding;
if (!columnBinding.IsValueNull())
{
item.baseSchemaName = columnBinding.ValueString();
}
}
if (data9 != null)
{
columnBinding = data9.columnBinding;
if (!columnBinding.IsValueNull())
{
item.baseCatalogName = columnBinding.ValueString();
}
}
if (data8 != null)
{
columnBinding = data8.columnBinding;
if (!columnBinding.IsValueNull())
{
item.baseTableName = columnBinding.ValueString();
}
}
if (data7 != null)
{
columnBinding = data7.columnBinding;
if (!columnBinding.IsValueNull())
{
item.baseColumnName = columnBinding.ValueString();
}
}
list.Add(item);
}
}
int count = list.Count;
if (propertyValue is int)
{
count -= (int) propertyValue;
}
bool flag = false;
for (int i = list.Count - 1; count <= i; i--)
{
System.Data.OleDb.MetaData data3 = list[i];
data3.isHidden = true;
if (flag)
{
data3.isKeyColumn = false;
}
else if (data3.guid.Equals(ODB.DBCOL_SPECIALCOL))
{
data3.isKeyColumn = false;
flag = true;
for (int k = list.Count - 1; i < k; k--)
{
list[k].isKeyColumn = false;
}
}
}
for (int j = count - 1; 0 <= j; j--)
{
System.Data.OleDb.MetaData data2 = list[j];
if (flag)
{
data2.isKeyColumn = false;
}
if (data2.guid.Equals(ODB.DBCOL_SPECIALCOL))
{
data2.isHidden = true;
count--;
}
else if (0 >= ((int) data2.ordinal))
{
data2.isHidden = true;
count--;
}
else if (DoColumnDropFilter(data2.flags))
{
data2.isHidden = true;
count--;
}
}
list.Sort();
this._visibleFieldCount = count;
this._metadata = list.ToArray();
}
override public int GetOrdinal(string value) {
if (null == _fieldNameLookup) {
if (null == this.dataCache) {
throw ADP.DataReaderNoData();
}
_fieldNameLookup = new FieldNameLookup(this, -1);
}
return _fieldNameLookup.GetOrdinal(value); // MDAC 71470
}
public override bool NextResult()
{
bool flag;
SqlStatistics statistics = null;
IntPtr ptr;
Bid.ScopeEnter(out ptr, "<sc.SqlDataReader.NextResult|API> %d#", this.ObjectID);
RuntimeHelpers.PrepareConstrainedRegions();
try
{
statistics = SqlStatistics.StartTimer(this.Statistics);
this.SetTimeout();
if (this.IsClosed)
{
throw ADP.DataReaderClosed("NextResult");
}
this._fieldNameLookup = null;
bool flag2 = false;
this._hasRows = false;
if (this.IsCommandBehavior(CommandBehavior.SingleResult))
{
this.CloseInternal(false);
this.ClearMetaData();
return flag2;
}
if (this._parser != null)
{
while (this.ReadInternal(false))
{
}
}
if (this._parser != null)
{
if (this.HasMoreResults())
{
this._metaDataConsumed = false;
this._browseModeInfoConsumed = false;
switch (this._altRowStatus)
{
case ALTROWSTATUS.AltRow:
{
int altRowId = this._parser.GetAltRowId(this._stateObj);
_SqlMetaDataSet altMetaData = this._altMetaDataSetCollection.GetAltMetaData(altRowId);
if (altMetaData != null)
{
this._metaData = altMetaData;
this._metaData.indexMap = altMetaData.indexMap;
}
break;
}
case ALTROWSTATUS.Done:
this._metaData = this._altMetaDataSetCollection.metaDataSet;
this._altRowStatus = ALTROWSTATUS.Null;
break;
default:
this.ConsumeMetaData();
if (this._metaData == null)
{
return false;
}
break;
}
return true;
}
this.CloseInternal(false);
this.SetMetaData(null, false);
return flag2;
}
this.ClearMetaData();
return flag2;
}
catch (OutOfMemoryException exception3)
{
this._isClosed = true;
if (this._connection != null)
{
this._connection.Abort(exception3);
}
throw;
}
catch (StackOverflowException exception2)
{
this._isClosed = true;
if (this._connection != null)
{
this._connection.Abort(exception2);
}
throw;
}
catch (ThreadAbortException exception)
{
this._isClosed = true;
if (this._connection != null)
{
this._connection.Abort(exception);
}
throw;
}
finally
{
SqlStatistics.StopTimer(statistics);
Bid.ScopeLeave(ref ptr);
}
return flag;
}
public RecordStateFactory(
int stateSlotNumber, int columnCount, RecordStateFactory[] nestedRecordStateFactories, DataRecordInfo dataRecordInfo,
Expression<Func<Shaper, bool>> gatherData, string[] propertyNames, TypeUsage[] typeUsages, bool[] isColumnNested)
{
StateSlotNumber = stateSlotNumber;
ColumnCount = columnCount;
NestedRecordStateFactories = new ReadOnlyCollection<RecordStateFactory>(nestedRecordStateFactories);
DataRecordInfo = dataRecordInfo;
GatherData = gatherData.Compile();
Description = gatherData.ToString();
ColumnNames = new ReadOnlyCollection<string>(propertyNames);
TypeUsages = new ReadOnlyCollection<TypeUsage>(typeUsages);
FieldNameLookup = new FieldNameLookup(ColumnNames, -1);
// pre-compute the nested objects from typeUsage, for performance
if (isColumnNested == null)
{
isColumnNested = new bool[columnCount];
for (var ordinal = 0; ordinal < columnCount; ordinal++)
{
switch (typeUsages[ordinal].EdmType.BuiltInTypeKind)
{
case BuiltInTypeKind.EntityType:
case BuiltInTypeKind.ComplexType:
case BuiltInTypeKind.RowType:
case BuiltInTypeKind.CollectionType:
isColumnNested[ordinal] = true;
HasNestedColumns = true;
break;
default:
isColumnNested[ordinal] = false;
break;
}
}
}
IsColumnNested = new ReadOnlyCollection<bool>(isColumnNested);
}
private int IndexOf(string value) {
if (null == _fieldNameLookup) {
if (null == this.dataCache) {
throw ADP.DataReaderNoData();
}
_fieldNameLookup = new FieldNameLookup(this, -1);
}
return _fieldNameLookup.IndexOf(value);
}
private void Close(bool disposing) {
Exception error = null;
CMDWrapper wrapper = _cmdWrapper;
if (null != wrapper && wrapper.StatementHandle != null) {
// disposing
// true to release both managed and unmanaged resources; false to release only unmanaged resources.
//
if (IsNonCancelingCommand) {
//Read any remaining results off the wire
// some batch statements may not be executed until SQLMoreResults is called.
// We want the user to be able to do ExecuteNonQuery or ExecuteReader
// and close without having iterate to get params or batch.
//
NextResult(disposing, !disposing); // false,true or true,false
if (null != command) {
if (command.HasParameters) {
// Output Parameters are not guareenteed to be returned until all the data
// from any restssets are read, so we do this after the above NextResult call(s)
command.Parameters.GetOutputValues(_cmdWrapper);
}
wrapper.FreeStatementHandle(ODBC32.STMT.CLOSE);
command.CloseFromDataReader();
}
}
wrapper.FreeKeyInfoStatementHandle(ODBC32.STMT.CLOSE);
}
// if the command is still around we call CloseFromDataReader,
// otherwise we need to dismiss the statement handle ourselves
//
if (null != command) {
command.CloseFromDataReader();
if(IsCommandBehavior(CommandBehavior.CloseConnection)) {
Debug.Assert(null != Connection, "null cmd connection");
command.Parameters.RebindCollection = true;
Connection.Close();
}
}
else if (null != wrapper) {
wrapper.Dispose();
}
this.command = null;
_isClosed=true;
this.dataCache = null;
this.metadata = null;
this.schemaTable = null;
_isRead = false;
_hasRows = HasRowsStatus.DontKnow;
_isValidResult = false;
_noMoreResults = true;
_noMoreRows = true;
_fieldNameLookup = null;
SetCurrentRowColumnInfo(-1, 0);
if ((null != error) && !disposing) {
throw error;
}
_cmdWrapper = null;
}