Code:
/ FX-1434 / FX-1434 / 1.0 / 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
- DataBindingCollection.cs
- FormatConvertedBitmap.cs
- WeakReadOnlyCollection.cs
- UriExt.cs
- __TransparentProxy.cs
- ArithmeticException.cs
- ControlHelper.cs
- StrokeNodeOperations2.cs
- InkSerializer.cs
- Point.cs
- CompilerHelpers.cs
- ExclusiveHandle.cs
- DefinitionUpdate.cs
- _LocalDataStore.cs
- MarkupWriter.cs
- CompilationLock.cs
- ContextMenu.cs
- DispatcherEventArgs.cs
- XhtmlConformanceSection.cs
- PrintDialog.cs
- Context.cs
- InfoCardConstants.cs
- SafeFileMappingHandle.cs
- NoneExcludedImageIndexConverter.cs
- ResourceManagerWrapper.cs
- ConvertersCollection.cs
- UserControlCodeDomTreeGenerator.cs
- CommandPlan.cs
- IDReferencePropertyAttribute.cs
- LostFocusEventManager.cs
- SharedStatics.cs
- TargetFrameworkAttribute.cs
- LoadedEvent.cs
- Compensate.cs
- IDQuery.cs
- CommonProperties.cs
- HostExecutionContextManager.cs
- DiffuseMaterial.cs
- BaseCodeDomTreeGenerator.cs
- HttpCachePolicyElement.cs
- RectangleHotSpot.cs
- DbConnectionOptions.cs
- Pens.cs
- SocketElement.cs
- WebScriptMetadataInstanceContextProvider.cs
- SspiHelper.cs
- EnumValAlphaComparer.cs
- ReachSerializer.cs
- SessionStateContainer.cs
- CompositionTarget.cs
- ColumnHeader.cs
- ChannelManagerService.cs
- ObjectNotFoundException.cs
- PagesChangedEventArgs.cs
- ContextMenuStripActionList.cs
- AuthorizationRule.cs
- RbTree.cs
- Pen.cs
- CodeTryCatchFinallyStatement.cs
- CodeStatementCollection.cs
- CertificateElement.cs
- SafeProcessHandle.cs
- HtmlImage.cs
- SwitchElementsCollection.cs
- Events.cs
- AttributeCollection.cs
- CompiledRegexRunner.cs
- ObjectAnimationUsingKeyFrames.cs
- DesignerSerializerAttribute.cs
- ItemCheckEvent.cs
- HostedElements.cs
- ScriptHandlerFactory.cs
- MenuItemStyleCollection.cs
- DataKeyCollection.cs
- SubqueryTrackingVisitor.cs
- ToolboxDataAttribute.cs
- ServerIdentity.cs
- XsdBuildProvider.cs
- HtmlToClrEventProxy.cs
- Expression.cs
- StagingAreaInputItem.cs
- AssemblyAttributesGoHere.cs
- CodeExpressionStatement.cs
- DiffuseMaterial.cs
- EncoderNLS.cs
- ZipIOExtraFieldZip64Element.cs
- Vector3DConverter.cs
- DataStreamFromComStream.cs
- QueryCacheManager.cs
- EasingQuaternionKeyFrame.cs
- FormViewInsertedEventArgs.cs
- SecurityHelper.cs
- PointKeyFrameCollection.cs
- TickBar.cs
- Pkcs9Attribute.cs
- CopyAction.cs
- NameNode.cs
- BindingCollection.cs
- IncrementalHitTester.cs
- ListenerConstants.cs