Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Data / System / Data / Common / SQLTypes / SQLBinaryStorage.cs / 1 / SQLBinaryStorage.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //[....] //----------------------------------------------------------------------------- namespace System.Data.Common { using System; using System.Xml; using System.Data.SqlTypes; using System.Diagnostics; using System.Globalization; using System.IO; using System.Xml.Serialization; using System.Collections; internal sealed class SqlBinaryStorage : DataStorage { private SqlBinary[] values; public SqlBinaryStorage(DataColumn column) : base(column, typeof(SqlBinary), SqlBinary.Null, SqlBinary.Null) { } override public Object Aggregate(int[] records, AggregateType kind) { try { switch (kind) { case AggregateType.First: if (records.Length > 0) { return values[records[0]]; } return null; case AggregateType.Count: int count = 0; for (int i = 0; i < records.Length; i++) { if (!IsNull(records[i])) count++; } return count; } } catch (OverflowException) { throw ExprException.Overflow(typeof(SqlBinary)); } throw ExceptionBuilder.AggregateException(kind, DataType); } override public int Compare(int recordNo1, int recordNo2) { return values[recordNo1].CompareTo(values[recordNo2]); } override public int CompareValueTo(int recordNo, Object value) { return values[recordNo].CompareTo((SqlBinary)value); } override public object ConvertValue(object value) { if (null != value) { return SqlConvert.ConvertToSqlBinary(value); } return NullValue; } override public void Copy(int recordNo1, int recordNo2) { values[recordNo2] = values[recordNo1]; } override public Object Get(int record) { return values[record]; } override public bool IsNull(int record) { return (values[record].IsNull); } override public void Set(int record, Object value) { values[record] = SqlConvert.ConvertToSqlBinary(value); } override public void SetCapacity(int capacity) { SqlBinary[] newValues = new SqlBinary[capacity]; if (null != values) { Array.Copy(values, 0, newValues, 0, Math.Min(capacity, values.Length)); } values = newValues; } override public object ConvertXmlToObject(string s) { SqlBinary newValue = new SqlBinary(); string tempStr =string.Concat("", s, ""); // this is done since you can give fragmet to reader, bug 98767 StringReader strReader = new StringReader(tempStr); IXmlSerializable tmp = newValue; using (XmlTextReader xmlTextReader = new XmlTextReader(strReader)) { tmp.ReadXml(xmlTextReader); } return ((SqlBinary)tmp); } override public string ConvertObjectToXml(object value) { Debug.Assert(!DataStorage.IsObjectNull(value), "we should have null here"); Debug.Assert((value.GetType() == typeof(SqlBinary)), "wrong input type"); StringWriter strwriter = new StringWriter(FormatProvider); using (XmlTextWriter xmlTextWriter = new XmlTextWriter (strwriter)) { ((IXmlSerializable)value).WriteXml(xmlTextWriter); } return (strwriter.ToString ()); } override protected object GetEmptyStorage(int recordCount) { return new SqlBinary[recordCount]; } override protected void CopyValue(int record, object store, BitArray nullbits, int storeIndex) { SqlBinary[] typedStore = (SqlBinary[]) store; typedStore[storeIndex] = values[record]; nullbits.Set(storeIndex, IsNull(record)); } override protected void SetStorage(object store, BitArray nullbits) { values = (SqlBinary[]) store; //SetNullStorage(nullbits); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- RSAPKCS1KeyExchangeDeformatter.cs
- XPathSingletonIterator.cs
- Context.cs
- XmlSchemaDocumentation.cs
- RemotingConfigParser.cs
- coordinatorscratchpad.cs
- SynchronousChannel.cs
- KeyProperty.cs
- MessageSecurityOverHttp.cs
- ToolStripSettings.cs
- ResourceDisplayNameAttribute.cs
- GridViewSortEventArgs.cs
- JsonObjectDataContract.cs
- DeflateStream.cs
- Size.cs
- CodeMemberField.cs
- LocatorPartList.cs
- ValuePattern.cs
- SessionStateItemCollection.cs
- DataObject.cs
- StructuredTypeEmitter.cs
- RequestQueryParser.cs
- Matrix.cs
- FirstMatchCodeGroup.cs
- XPathScanner.cs
- Simplifier.cs
- TransactionTable.cs
- InvalidComObjectException.cs
- ButtonFlatAdapter.cs
- FormsAuthentication.cs
- SnapshotChangeTrackingStrategy.cs
- _SSPISessionCache.cs
- FrameworkEventSource.cs
- EventSetter.cs
- Content.cs
- ClientCredentialsSecurityTokenManager.cs
- ConfigurationManagerHelper.cs
- WindowsTab.cs
- login.cs
- ProgressBarRenderer.cs
- GetRecipientListRequest.cs
- MemberCollection.cs
- SynchronizedInputProviderWrapper.cs
- SmtpSpecifiedPickupDirectoryElement.cs
- ObjectViewQueryResultData.cs
- SqlFunctionAttribute.cs
- BufferModesCollection.cs
- RunInstallerAttribute.cs
- ByteAnimation.cs
- assertwrapper.cs
- EnumMember.cs
- OracleDataAdapter.cs
- FactoryGenerator.cs
- MatcherBuilder.cs
- mactripleDES.cs
- SchemaImporterExtension.cs
- TabItemWrapperAutomationPeer.cs
- OleDbPermission.cs
- Wizard.cs
- AvTraceDetails.cs
- GlobalItem.cs
- Trace.cs
- HtmlInputSubmit.cs
- SHA256Managed.cs
- ApplicationTrust.cs
- TrackingRecord.cs
- DataServiceQueryContinuation.cs
- XmlValidatingReaderImpl.cs
- RoleBoolean.cs
- JsonXmlDataContract.cs
- CompoundFileIOPermission.cs
- OutputScope.cs
- ExtendedTransformFactory.cs
- ThousandthOfEmRealDoubles.cs
- _SSPIWrapper.cs
- DateTimeConverter2.cs
- Ray3DHitTestResult.cs
- SvcFileManager.cs
- RootBrowserWindowProxy.cs
- XmlSecureResolver.cs
- ZipFileInfo.cs
- FilterableAttribute.cs
- Paragraph.cs
- TypeBuilder.cs
- CultureInfo.cs
- MemoryFailPoint.cs
- PeerApplication.cs
- EntityStoreSchemaGenerator.cs
- FormClosedEvent.cs
- ContentPosition.cs
- TextDecorationCollectionConverter.cs
- IPPacketInformation.cs
- ListViewSelectEventArgs.cs
- HyperLinkStyle.cs
- _HelperAsyncResults.cs
- TraceListeners.cs
- Help.cs
- ContentElementAutomationPeer.cs
- FontCollection.cs
- ApplyHostConfigurationBehavior.cs