Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Data / System / Data / Common / SQLTypes / SQLBytesStorage.cs / 1305376 / SQLBytesStorage.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //[....] //----------------------------------------------------------------------------- namespace System.Data.Common { using System; using System.Collections; using System.Data.SqlClient; using System.Data.SqlTypes; using System.Diagnostics; using System.Globalization; using System.IO; using System.Xml; using System.Xml.Serialization; internal sealed class SqlBytesStorage : DataStorage { private SqlBytes[] values; public SqlBytesStorage(DataColumn column) : base(column, typeof(SqlBytes), SqlBytes.Null, SqlBytes.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;// no data => 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(SqlBytes)); } throw ExceptionBuilder.AggregateException(kind, DataType); } override public int Compare(int recordNo1, int recordNo2) { return 0; } override public int CompareValueTo(int recordNo, Object value) { return 0; } 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) { if ((value == DBNull.Value) || (value == null)){ values[record] = SqlBytes.Null; } else { values[record] = (SqlBytes)value; } } override public void SetCapacity(int capacity) { SqlBytes[] newValues = new SqlBytes[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 (new SqlBytes((SqlBinary)tmp)); } override public string ConvertObjectToXml(object value) { Debug.Assert(!DataStorage.IsObjectNull(value), "we shouldn't have null here"); Debug.Assert((value.GetType() == typeof(SqlBytes)), "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 SqlBytes[recordCount]; } override protected void CopyValue(int record, object store, BitArray nullbits, int storeIndex) { SqlBytes[] typedStore = (SqlBytes[]) store; typedStore[storeIndex] = values[record]; nullbits.Set(storeIndex, IsNull(record)); } override protected void SetStorage(object store, BitArray nullbits) { values = (SqlBytes[]) store; //SetNullStorage(nullbits); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ServicePointManagerElement.cs
- DataBoundLiteralControl.cs
- SchemaImporter.cs
- Hex.cs
- StatusBarPanel.cs
- LinearKeyFrames.cs
- ErrorHandler.cs
- SqlUserDefinedTypeAttribute.cs
- TypeBuilder.cs
- StreamWriter.cs
- CommittableTransaction.cs
- DataGridAutomationPeer.cs
- ByeOperation11AsyncResult.cs
- SID.cs
- KnownIds.cs
- ColorTransform.cs
- ServiceChannelManager.cs
- FormsAuthenticationConfiguration.cs
- MSG.cs
- CodeTypeDelegate.cs
- TrackingDataItemValue.cs
- LocalizationComments.cs
- CheckBox.cs
- SmiMetaDataProperty.cs
- LogWriteRestartAreaState.cs
- FactoryGenerator.cs
- WinCategoryAttribute.cs
- DescendentsWalkerBase.cs
- UserControlParser.cs
- GenerateTemporaryAssemblyTask.cs
- SamlAuthorizationDecisionStatement.cs
- SQLInt32Storage.cs
- KeyFrames.cs
- documentsequencetextview.cs
- ServiceHostingEnvironment.cs
- TraceSection.cs
- NumericUpDown.cs
- EntityClassGenerator.cs
- HealthMonitoringSectionHelper.cs
- ListViewItemMouseHoverEvent.cs
- MarkupProperty.cs
- HtmlButton.cs
- TextMessageEncodingBindingElement.cs
- WebPartConnectionsDisconnectVerb.cs
- PointAnimationBase.cs
- InputMethodStateTypeInfo.cs
- Rect3DValueSerializer.cs
- SqlCacheDependencyDatabase.cs
- ColorContextHelper.cs
- SimpleBitVector32.cs
- MenuItemAutomationPeer.cs
- SecurityContext.cs
- DataGridViewCell.cs
- ManifestResourceInfo.cs
- InsufficientExecutionStackException.cs
- StateDesigner.cs
- ExitEventArgs.cs
- RegexReplacement.cs
- DBNull.cs
- ToolStripDropDownMenu.cs
- DataStorage.cs
- CryptoApi.cs
- RedBlackList.cs
- MatrixIndependentAnimationStorage.cs
- CatalogPartChrome.cs
- UndoUnit.cs
- HwndSourceParameters.cs
- Transform3DGroup.cs
- SpotLight.cs
- InvalidPrinterException.cs
- XmlSchemaComplexType.cs
- TextDecorationLocationValidation.cs
- UnsafeNativeMethodsMilCoreApi.cs
- DetailsViewRow.cs
- XmlWriterSettings.cs
- ToolStripComboBox.cs
- AutomationPeer.cs
- StrokeNodeOperations.cs
- XmlILAnnotation.cs
- DesignerTextWriter.cs
- DataServiceHostFactory.cs
- WindowsAltTab.cs
- OleDbRowUpdatingEvent.cs
- StructuralType.cs
- CodeGroup.cs
- ExitEventArgs.cs
- WinInetCache.cs
- OleDbReferenceCollection.cs
- XmlComment.cs
- XsltInput.cs
- NullReferenceException.cs
- ValidationException.cs
- DisableDpiAwarenessAttribute.cs
- CodeCatchClauseCollection.cs
- Debug.cs
- BooleanToVisibilityConverter.cs
- Roles.cs
- BaseInfoTable.cs
- ModelItemCollectionImpl.cs
- FormViewRow.cs