Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / Data / System / Data / Common / SQLTypes / SQLCharsStorage.cs / 1 / SQLCharsStorage.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //[....] //----------------------------------------------------------------------------- namespace System.Data.Common { using System; using System.Xml; using System.IO; using System.Xml.Serialization; using System.Data.SqlTypes; using System.Diagnostics; using System.Globalization; using System.Collections; internal sealed class SqlCharsStorage : DataStorage { private SqlChars[] values; public SqlCharsStorage(DataColumn column) : base(column, typeof(SqlChars), SqlChars.Null, SqlChars.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(SqlChars)); } throw ExceptionBuilder.AggregateException(kind, DataType); } override public int Compare(int recordNo1, int recordNo2) { // throw ExceptionBuilder.IComparableNotDefined; return 0; } override public int CompareValueTo(int recordNo, Object value) { // throw ExceptionBuilder.IComparableNotDefined; 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] = SqlChars.Null; } else { values[record] = (SqlChars)value; } } override public void SetCapacity(int capacity) { SqlChars[] newValues = new SqlChars[capacity]; if (null != values) { Array.Copy(values, 0, newValues, 0, Math.Min(capacity, values.Length)); } values = newValues; } override public object ConvertXmlToObject(string s) { SqlString newValue = new SqlString(); 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 SqlChars((SqlString)tmp)); } override public string ConvertObjectToXml(object value) { Debug.Assert(!DataStorage.IsObjectNull(value), "we shouldn't have null here"); Debug.Assert((value.GetType() == typeof(SqlChars)), "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 SqlChars[recordCount]; } override protected void CopyValue(int record, object store, BitArray nullbits, int storeIndex) { SqlChars[] typedStore = (SqlChars[]) store; typedStore[storeIndex] = values[record]; nullbits.Set(storeIndex, IsNull(record)); } override protected void SetStorage(object store, BitArray nullbits) { values = (SqlChars[]) store; //SetNullStorage(nullbits); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ // // Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //[....] //----------------------------------------------------------------------------- namespace System.Data.Common { using System; using System.Xml; using System.IO; using System.Xml.Serialization; using System.Data.SqlTypes; using System.Diagnostics; using System.Globalization; using System.Collections; internal sealed class SqlCharsStorage : DataStorage { private SqlChars[] values; public SqlCharsStorage(DataColumn column) : base(column, typeof(SqlChars), SqlChars.Null, SqlChars.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(SqlChars)); } throw ExceptionBuilder.AggregateException(kind, DataType); } override public int Compare(int recordNo1, int recordNo2) { // throw ExceptionBuilder.IComparableNotDefined; return 0; } override public int CompareValueTo(int recordNo, Object value) { // throw ExceptionBuilder.IComparableNotDefined; 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] = SqlChars.Null; } else { values[record] = (SqlChars)value; } } override public void SetCapacity(int capacity) { SqlChars[] newValues = new SqlChars[capacity]; if (null != values) { Array.Copy(values, 0, newValues, 0, Math.Min(capacity, values.Length)); } values = newValues; } override public object ConvertXmlToObject(string s) { SqlString newValue = new SqlString(); 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 SqlChars((SqlString)tmp)); } override public string ConvertObjectToXml(object value) { Debug.Assert(!DataStorage.IsObjectNull(value), "we shouldn't have null here"); Debug.Assert((value.GetType() == typeof(SqlChars)), "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 SqlChars[recordCount]; } override protected void CopyValue(int record, object store, BitArray nullbits, int storeIndex) { SqlChars[] typedStore = (SqlChars[]) store; typedStore[storeIndex] = values[record]; nullbits.Set(storeIndex, IsNull(record)); } override protected void SetStorage(object store, BitArray nullbits) { values = (SqlChars[]) 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
- FontSourceCollection.cs
- ConnectorSelectionGlyph.cs
- SqlClientWrapperSmiStreamChars.cs
- Helper.cs
- TableCellCollection.cs
- DataSourceCacheDurationConverter.cs
- XsltInput.cs
- Version.cs
- SkewTransform.cs
- DayRenderEvent.cs
- DataGridViewIntLinkedList.cs
- ModelVisual3D.cs
- DataViewSettingCollection.cs
- KnownBoxes.cs
- MethodToken.cs
- UnauthorizedWebPart.cs
- SapiAttributeParser.cs
- Geometry.cs
- DependencyObjectPropertyDescriptor.cs
- SpellerError.cs
- WorkflowNamespace.cs
- GlyphTypeface.cs
- InstanceDataCollectionCollection.cs
- ListViewPagedDataSource.cs
- Stack.cs
- ManualResetEvent.cs
- UnsafeNativeMethods.cs
- TransformerTypeCollection.cs
- XmlWriterSettings.cs
- SecurityState.cs
- RegexMatch.cs
- DefinitionBase.cs
- Interlocked.cs
- ColorConverter.cs
- MemberInfoSerializationHolder.cs
- WebPartDisplayModeEventArgs.cs
- XmlAnyElementAttributes.cs
- ResourceAssociationType.cs
- TextRangeEdit.cs
- StaticTextPointer.cs
- CodeTypeParameter.cs
- ManualResetEvent.cs
- LOSFormatter.cs
- XmlUtf8RawTextWriter.cs
- SymbolEqualComparer.cs
- SoapFormatter.cs
- Win32Exception.cs
- SafePEFileHandle.cs
- ThreadStartException.cs
- FixedSOMGroup.cs
- cryptoapiTransform.cs
- _FixedSizeReader.cs
- DateTimePickerDesigner.cs
- StoryFragments.cs
- NativeMethods.cs
- RequestQueue.cs
- ToolStripPanel.cs
- BinaryNode.cs
- ProtectedConfiguration.cs
- ToolStripDropDownItem.cs
- CacheOutputQuery.cs
- WindowsPrincipal.cs
- UnsafeNativeMethods.cs
- BindingNavigator.cs
- IsolatedStorageFile.cs
- QueryGeneratorBase.cs
- ScriptRegistrationManager.cs
- UrlUtility.cs
- SchemaImporter.cs
- MDIClient.cs
- TextViewBase.cs
- MouseGestureConverter.cs
- COM2PropertyDescriptor.cs
- HostProtectionPermission.cs
- SoapEnumAttribute.cs
- Propagator.ExtentPlaceholderCreator.cs
- RowVisual.cs
- TcpStreams.cs
- DocumentPageHost.cs
- ScaleTransform.cs
- Rect3DConverter.cs
- WebHostUnsafeNativeMethods.cs
- XPathEmptyIterator.cs
- UnknownBitmapEncoder.cs
- AuthenticationSection.cs
- WsiProfilesElementCollection.cs
- CodeTypeDeclarationCollection.cs
- StreamedWorkflowDefinitionContext.cs
- ChtmlTextWriter.cs
- CodeCommentStatementCollection.cs
- GridView.cs
- ImmutableObjectAttribute.cs
- TypeDescriptor.cs
- ButtonBaseAutomationPeer.cs
- MethodBuilder.cs
- TypeDescriptor.cs
- WorkflowTransactionOptions.cs
- OleDbParameter.cs
- CompositeFontFamily.cs
- RealProxy.cs