Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / Data / System / Data / Common / StringStorage.cs / 1 / StringStorage.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //[....] //----------------------------------------------------------------------------- namespace System.Data.Common { using System; using System.Diagnostics; using System.Globalization; using System.Data.SqlTypes; using System.Collections; // The string storage does not use BitArrays in DataStorage internal sealed class StringStorage : DataStorage { private String[] values; public StringStorage(DataColumn column) : base(column, typeof(String), String.Empty) { } override public Object Aggregate(int[] recordNos, AggregateType kind) { int i; switch (kind) { case AggregateType.Min: int min = -1; for (i = 0; i < recordNos.Length; i++) { if (IsNull(recordNos[i])) continue; min = recordNos[i]; break; } if (min >= 0) { for (i = i+1; i < recordNos.Length; i++) { if (IsNull(recordNos[i])) continue; if (Compare(min, recordNos[i]) > 0) { min = recordNos[i]; } } return Get(min); } return NullValue; case AggregateType.Max: int max = -1; for (i = 0; i < recordNos.Length; i++) { if (IsNull(recordNos[i])) continue; max = recordNos[i]; break; } if (max >= 0) { for (i = i+1; i < recordNos.Length; i++) { if (Compare(max, recordNos[i]) < 0) { max = recordNos[i]; } } return Get(max); } return NullValue; case AggregateType.Count: int count = 0; for (i = 0; i < recordNos.Length; i++) { Object value = values[recordNos[i]]; if (value != null) count++; } return count; } throw ExceptionBuilder.AggregateException(kind, DataType); } override public int Compare(int recordNo1, int recordNo2) { string valueNo1 = values[recordNo1]; string valueNo2 = values[recordNo2]; if ((Object)valueNo1 == (Object)valueNo2) return 0; if (valueNo1 == null) return -1; if (valueNo2 == null) return 1; return Table.Compare(valueNo1, valueNo2); } override public int CompareValueTo(int recordNo, Object value) { Debug.Assert(recordNo != -1, "Invalid (-1) parameter: 'recordNo'"); Debug.Assert(null != value, "null value"); string valueNo1 = values[recordNo]; if (null == valueNo1) { if (NullValue == value) { return 0; } else { return -1; } } else if (NullValue == value) { return 1; } return Table.Compare(valueNo1, (string)value); } public override object ConvertValue(object value) { if (NullValue != value) { if (null != value) { value = value.ToString(); } else { value = NullValue; } } return value; } override public void Copy(int recordNo1, int recordNo2) { values[recordNo2] = values[recordNo1]; } override public Object Get(int recordNo) { String value = values[recordNo]; if (null != value) { return value; } return NullValue; } override public int GetStringLength(int record) { string value = values[record]; return ((null != value) ? value.Length : 0); } override public bool IsNull(int record) { return (null == values[record]); } override public void Set(int record, Object value) { System.Diagnostics.Debug.Assert(null != value, "null value"); if (NullValue == value) { values[record] = null; } else { values[record] = value.ToString(); } } override public void SetCapacity(int capacity) { string[] newValues = new string[capacity]; if (values != null) { Array.Copy(values, 0, newValues, 0, Math.Min(capacity, values.Length)); } values = newValues; } override public object ConvertXmlToObject(string s) { return s; } override public string ConvertObjectToXml(object value) { return (string)value; } override protected object GetEmptyStorage(int recordCount) { return new String[recordCount]; } override protected void CopyValue(int record, object store, BitArray nullbits, int storeIndex) { String[] typedStore = (String[]) store; typedStore[storeIndex] = values[record]; nullbits.Set(storeIndex, IsNull(record)); } override protected void SetStorage(object store, BitArray nullbits) { values = (String[]) 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.Diagnostics; using System.Globalization; using System.Data.SqlTypes; using System.Collections; // The string storage does not use BitArrays in DataStorage internal sealed class StringStorage : DataStorage { private String[] values; public StringStorage(DataColumn column) : base(column, typeof(String), String.Empty) { } override public Object Aggregate(int[] recordNos, AggregateType kind) { int i; switch (kind) { case AggregateType.Min: int min = -1; for (i = 0; i < recordNos.Length; i++) { if (IsNull(recordNos[i])) continue; min = recordNos[i]; break; } if (min >= 0) { for (i = i+1; i < recordNos.Length; i++) { if (IsNull(recordNos[i])) continue; if (Compare(min, recordNos[i]) > 0) { min = recordNos[i]; } } return Get(min); } return NullValue; case AggregateType.Max: int max = -1; for (i = 0; i < recordNos.Length; i++) { if (IsNull(recordNos[i])) continue; max = recordNos[i]; break; } if (max >= 0) { for (i = i+1; i < recordNos.Length; i++) { if (Compare(max, recordNos[i]) < 0) { max = recordNos[i]; } } return Get(max); } return NullValue; case AggregateType.Count: int count = 0; for (i = 0; i < recordNos.Length; i++) { Object value = values[recordNos[i]]; if (value != null) count++; } return count; } throw ExceptionBuilder.AggregateException(kind, DataType); } override public int Compare(int recordNo1, int recordNo2) { string valueNo1 = values[recordNo1]; string valueNo2 = values[recordNo2]; if ((Object)valueNo1 == (Object)valueNo2) return 0; if (valueNo1 == null) return -1; if (valueNo2 == null) return 1; return Table.Compare(valueNo1, valueNo2); } override public int CompareValueTo(int recordNo, Object value) { Debug.Assert(recordNo != -1, "Invalid (-1) parameter: 'recordNo'"); Debug.Assert(null != value, "null value"); string valueNo1 = values[recordNo]; if (null == valueNo1) { if (NullValue == value) { return 0; } else { return -1; } } else if (NullValue == value) { return 1; } return Table.Compare(valueNo1, (string)value); } public override object ConvertValue(object value) { if (NullValue != value) { if (null != value) { value = value.ToString(); } else { value = NullValue; } } return value; } override public void Copy(int recordNo1, int recordNo2) { values[recordNo2] = values[recordNo1]; } override public Object Get(int recordNo) { String value = values[recordNo]; if (null != value) { return value; } return NullValue; } override public int GetStringLength(int record) { string value = values[record]; return ((null != value) ? value.Length : 0); } override public bool IsNull(int record) { return (null == values[record]); } override public void Set(int record, Object value) { System.Diagnostics.Debug.Assert(null != value, "null value"); if (NullValue == value) { values[record] = null; } else { values[record] = value.ToString(); } } override public void SetCapacity(int capacity) { string[] newValues = new string[capacity]; if (values != null) { Array.Copy(values, 0, newValues, 0, Math.Min(capacity, values.Length)); } values = newValues; } override public object ConvertXmlToObject(string s) { return s; } override public string ConvertObjectToXml(object value) { return (string)value; } override protected object GetEmptyStorage(int recordCount) { return new String[recordCount]; } override protected void CopyValue(int record, object store, BitArray nullbits, int storeIndex) { String[] typedStore = (String[]) store; typedStore[storeIndex] = values[record]; nullbits.Set(storeIndex, IsNull(record)); } override protected void SetStorage(object store, BitArray nullbits) { values = (String[]) store; // SetNullStorage(nullbits); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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- ModuleBuilderData.cs
- RegexNode.cs
- ToolboxDataAttribute.cs
- UntypedNullExpression.cs
- NumberFormatInfo.cs
- WarningException.cs
- ControlCachePolicy.cs
- WebPartEditorOkVerb.cs
- NamespaceDecl.cs
- SurrogateDataContract.cs
- DataViewSetting.cs
- ServiceDesigner.xaml.cs
- BlurEffect.cs
- OledbConnectionStringbuilder.cs
- BidirectionalDictionary.cs
- AttachedPropertyBrowsableForChildrenAttribute.cs
- Point3DAnimation.cs
- MarkupWriter.cs
- CompilationRelaxations.cs
- Floater.cs
- Preprocessor.cs
- NativeMethods.cs
- UIElementCollection.cs
- XmlDataSourceView.cs
- AlternateView.cs
- ArgumentException.cs
- RegistryKey.cs
- TemplatePartAttribute.cs
- Mutex.cs
- GridToolTip.cs
- AssemblySettingAttributes.cs
- HandoffBehavior.cs
- HttpWebRequestElement.cs
- Version.cs
- XmlBinaryReaderSession.cs
- DataBindingHandlerAttribute.cs
- Soap.cs
- TransformValueSerializer.cs
- UriExt.cs
- TablePattern.cs
- ContentDisposition.cs
- RowTypeElement.cs
- FormattedText.cs
- ResourcePermissionBaseEntry.cs
- Tracer.cs
- IsolationInterop.cs
- GridItemPattern.cs
- TemplateParser.cs
- StatusBarPanelClickEvent.cs
- HuffmanTree.cs
- DocumentReference.cs
- ProviderManager.cs
- SafeArrayRankMismatchException.cs
- SqlMetaData.cs
- SortedSet.cs
- RenderData.cs
- RadioButtonStandardAdapter.cs
- MenuItemBinding.cs
- Compiler.cs
- EdmSchemaError.cs
- ShutDownListener.cs
- LongValidator.cs
- NestedContainer.cs
- DelegateSerializationHolder.cs
- ProtocolsSection.cs
- HttpWebRequestElement.cs
- ErrorHandlerModule.cs
- KnownColorTable.cs
- ErrorInfoXmlDocument.cs
- GPPOINT.cs
- SignedInfo.cs
- SessionPageStateSection.cs
- XmlSchemaFacet.cs
- OrderedDictionaryStateHelper.cs
- AccessedThroughPropertyAttribute.cs
- SamlAuthorizationDecisionStatement.cs
- Misc.cs
- VirtualDirectoryMappingCollection.cs
- ComponentEvent.cs
- RunWorkerCompletedEventArgs.cs
- DataGridViewCellCollection.cs
- SafeFileMappingHandle.cs
- WhitespaceSignificantCollectionAttribute.cs
- CallInfo.cs
- SimpleType.cs
- DataSourceCacheDurationConverter.cs
- Sequence.cs
- HiddenFieldPageStatePersister.cs
- AssociationTypeEmitter.cs
- GetReadStreamResult.cs
- HitTestWithGeometryDrawingContextWalker.cs
- BaseUriHelper.cs
- DiscreteKeyFrames.cs
- OleDbWrapper.cs
- ResolveMatches11.cs
- ProxyWebPart.cs
- SortAction.cs
- MdiWindowListItemConverter.cs
- PartialTrustVisibleAssemblyCollection.cs
- ArrayWithOffset.cs