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
- ReadOnlyCollection.cs
- ResourceDescriptionAttribute.cs
- MetadataItem.cs
- DefaultAssemblyResolver.cs
- BinaryMethodMessage.cs
- RangeEnumerable.cs
- MD5.cs
- UnionCqlBlock.cs
- Rect3DConverter.cs
- FastEncoderWindow.cs
- MSAANativeProvider.cs
- SqlBulkCopyColumnMapping.cs
- RoleGroupCollection.cs
- EncoderReplacementFallback.cs
- HttpResponseHeader.cs
- DSASignatureDeformatter.cs
- Pointer.cs
- BrushMappingModeValidation.cs
- XPathNavigator.cs
- BuildProviderUtils.cs
- WorkflowPageSetupDialog.cs
- JavaScriptString.cs
- NamespaceInfo.cs
- TypeBuilderInstantiation.cs
- InitializerFacet.cs
- DataAccessor.cs
- SecuritySessionSecurityTokenProvider.cs
- XmlQueryTypeFactory.cs
- AtomParser.cs
- LinqDataSourceContextEventArgs.cs
- RotateTransform3D.cs
- CodePrimitiveExpression.cs
- ErrorRuntimeConfig.cs
- ResourceDefaultValueAttribute.cs
- PolyQuadraticBezierSegment.cs
- LayoutExceptionEventArgs.cs
- XmlAttributeProperties.cs
- MemberDomainMap.cs
- TagPrefixCollection.cs
- QilNode.cs
- Configuration.cs
- HttpFileCollection.cs
- GZipStream.cs
- DateTimeOffsetStorage.cs
- ValidatingReaderNodeData.cs
- LocalizabilityAttribute.cs
- StartUpEventArgs.cs
- ListViewItem.cs
- OdbcEnvironmentHandle.cs
- ApplicationTrust.cs
- BinaryHeap.cs
- TypeExtensionConverter.cs
- SchemaElementDecl.cs
- DataPagerFieldCommandEventArgs.cs
- UnsafeNativeMethods.cs
- DesignerProperties.cs
- UserControlCodeDomTreeGenerator.cs
- TypeToStringValueConverter.cs
- CodeDomSerializerException.cs
- NumericExpr.cs
- TrackingConditionCollection.cs
- DynamicResourceExtensionConverter.cs
- DataGridViewTopRowAccessibleObject.cs
- TagNameToTypeMapper.cs
- TransactionScope.cs
- FixedBufferAttribute.cs
- PrintPreviewControl.cs
- ControlEvent.cs
- TreeNodeBinding.cs
- ClientTargetCollection.cs
- ControlBuilderAttribute.cs
- HelloMessageApril2005.cs
- MailWebEventProvider.cs
- LocalizabilityAttribute.cs
- BitmapEffectvisualstate.cs
- Array.cs
- CustomActivityDesigner.cs
- XPathNavigatorReader.cs
- DefaultHttpHandler.cs
- SecUtil.cs
- XmlSchemaProviderAttribute.cs
- ColumnWidthChangedEvent.cs
- StrokeCollectionDefaultValueFactory.cs
- WorkflowViewManager.cs
- PointCollection.cs
- DataObjectMethodAttribute.cs
- SqlClientMetaDataCollectionNames.cs
- CellLabel.cs
- AdRotator.cs
- PassportPrincipal.cs
- Operand.cs
- altserialization.cs
- SafeCryptHandles.cs
- FileLevelControlBuilderAttribute.cs
- DbTransaction.cs
- SqlNodeAnnotations.cs
- VBIdentifierName.cs
- AttributeQuery.cs
- HtmlEmptyTagControlBuilder.cs
- SimpleLine.cs