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
- MaterialGroup.cs
- Stylesheet.cs
- UnsafeCollabNativeMethods.cs
- TransactionManager.cs
- ComponentResourceKeyConverter.cs
- httpserverutility.cs
- Camera.cs
- IDictionary.cs
- Function.cs
- CollectionContainer.cs
- XPathSingletonIterator.cs
- Point4D.cs
- AssemblyBuilderData.cs
- SourceLineInfo.cs
- DataServiceProviderMethods.cs
- SystemParameters.cs
- PieceNameHelper.cs
- FlowDocumentScrollViewerAutomationPeer.cs
- BinaryFormatterWriter.cs
- StylusDevice.cs
- unsafenativemethodsother.cs
- Clock.cs
- StrongNamePublicKeyBlob.cs
- ClientBuildManagerCallback.cs
- LogStream.cs
- EntityClientCacheKey.cs
- JsonClassDataContract.cs
- HtmlInputRadioButton.cs
- PointAnimationClockResource.cs
- XmlUtil.cs
- Accessors.cs
- XmlText.cs
- Buffer.cs
- DependencyObjectPropertyDescriptor.cs
- CodeMethodMap.cs
- CompositeDispatchFormatter.cs
- SessionStateUtil.cs
- ToolStripProgressBar.cs
- KeyGestureConverter.cs
- ConnectionsZoneAutoFormat.cs
- TreeView.cs
- DispatcherObject.cs
- DataGridViewCellValueEventArgs.cs
- CodeDomConfigurationHandler.cs
- HtmlTableCell.cs
- AutoCompleteStringCollection.cs
- isolationinterop.cs
- GlyphRunDrawing.cs
- RichTextBox.cs
- CategoryAttribute.cs
- UnsafeNativeMethods.cs
- EventSetter.cs
- Privilege.cs
- MenuItem.cs
- InvalidProgramException.cs
- XmlSerializerFactory.cs
- WebPartDisplayModeCancelEventArgs.cs
- XPathDocumentNavigator.cs
- TypeCacheManager.cs
- ObjectView.cs
- HTTPNotFoundHandler.cs
- EndpointNameMessageFilter.cs
- Span.cs
- XsltInput.cs
- DotNetATv1WindowsLogEntrySerializer.cs
- ObjectViewFactory.cs
- XmlElementAttributes.cs
- VideoDrawing.cs
- ProfilePropertyNameValidator.cs
- FloatAverageAggregationOperator.cs
- NestPullup.cs
- SizeKeyFrameCollection.cs
- _NTAuthentication.cs
- HierarchicalDataBoundControlAdapter.cs
- RepeaterCommandEventArgs.cs
- SafeArrayTypeMismatchException.cs
- PreloadedPackages.cs
- ParameterDataSourceExpression.cs
- URL.cs
- TemplatedAdorner.cs
- TagNameToTypeMapper.cs
- TypeConstant.cs
- StylusDevice.cs
- TraceListeners.cs
- SetStoryboardSpeedRatio.cs
- ValidationHelper.cs
- StringFormat.cs
- RecordsAffectedEventArgs.cs
- CompilerResults.cs
- ConnectionsZone.cs
- TraceHandler.cs
- MetafileHeaderWmf.cs
- ContainerSelectorActiveEvent.cs
- tooltip.cs
- PersonalizationStateQuery.cs
- ObjectTag.cs
- EdmToObjectNamespaceMap.cs
- TypeValidationEventArgs.cs
- ClassImporter.cs
- UrlMapping.cs