Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / ndp / fx / src / Data / System / Data / ProviderBase / DbParameterHelper.cs / 3 / DbParameterHelper.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- namespace NAMESPACE { using System; using System.ComponentModel; using System.Data; using System.Data.Common; using System.Globalization; public sealed partial class PARAMETEROBJECTNAME : DbParameter { // V1.2.3300 private object _value; private object _parent; private ParameterDirection _direction; private int? _size; #if USEOFFSET private int _offset; #endif private string _sourceColumn; private DataRowVersion _sourceVersion; private bool _sourceColumnNullMapping; private bool? _isNullable; private object _coercedValue; private PARAMETEROBJECTNAME(PARAMETEROBJECTNAME source) : this() { // V1.2.3300, Clone ADP.CheckArgumentNull(source, "source"); source.CloneHelper(this); ICloneable cloneable = (_value as ICloneable); if (null != cloneable) { // MDAC 49322 _value = cloneable.Clone(); } } private object CoercedValue { // V1.2.3300 get { return _coercedValue; } set { _coercedValue = value; } } ////// /// [ RefreshProperties(RefreshProperties.All), RESNAMESPACE.ResCategoryAttribute(Res.DataCategory_Data), RESNAMESPACE.ResDescriptionAttribute(Res.DbParameter_Direction), ] override public ParameterDirection Direction { // V1.2.3300, XXXParameter V1.0.3300 get { ParameterDirection direction = _direction; return ((0 != direction) ? direction : ParameterDirection.Input); } set { if (_direction != value) { switch (value) { // @perfnote: Enum.IsDefined case ParameterDirection.Input: case ParameterDirection.Output: case ParameterDirection.InputOutput: case ParameterDirection.ReturnValue: PropertyChanging(); _direction = value; break; default: throw ADP.InvalidParameterDirection(value); } } } } ////// /// override public bool IsNullable { // V1.2.3300, XXXParameter V1.0.3300 get { bool result = this._isNullable.HasValue ? this._isNullable.Value : true; return result; } set { _isNullable = value; } } #if USEOFFSET ////// /// [ Browsable(false), EditorBrowsableAttribute(EditorBrowsableState.Advanced), // MDAC 69508 RESNAMESPACE.ResCategoryAttribute(Res.DataCategory_Data), RESNAMESPACE.ResDescriptionAttribute(Res.DbParameter_Offset), ] public int Offset { get { return _offset; } set { if (value < 0) { throw ADP.InvalidOffsetValue(value); } _offset = value; } } #else internal int Offset { get { return 0; } } #endif ////// /// [ RESNAMESPACE.ResCategoryAttribute(Res.DataCategory_Data), RESNAMESPACE.ResDescriptionAttribute(Res.DbParameter_Size), ] override public int Size { // V1.2.3300, XXXParameter V1.0.3300 get { int size = _size.HasValue ? _size.Value : 0; if (0 == size) { size = ValueSize(Value); } return size; } set { if (!_size.HasValue || _size.Value != value) { if (value < -1) { throw ADP.InvalidSizeValue(value); } PropertyChanging(); if (0 == value) { _size = null; } else { _size = value; } } } } private void ResetSize() { if (_size.HasValue) { PropertyChanging(); _size = null; } } private bool ShouldSerializeSize() { // V1.2.3300 return (_size.HasValue && _size.Value != 0); } ////// /// [ RESNAMESPACE.ResCategoryAttribute(Res.DataCategory_Update), RESNAMESPACE.ResDescriptionAttribute(Res.DbParameter_SourceColumn), ] override public string SourceColumn { // V1.2.3300, XXXParameter V1.0.3300 get { string sourceColumn = _sourceColumn; return ((null != sourceColumn) ? sourceColumn : ADP.StrEmpty); } set { _sourceColumn = value; } } ////// /// public override bool SourceColumnNullMapping { get { return _sourceColumnNullMapping; } set { _sourceColumnNullMapping = value; } } ////// /// [ RESNAMESPACE.ResCategoryAttribute(Res.DataCategory_Update), RESNAMESPACE.ResDescriptionAttribute(Res.DbParameter_SourceVersion), ] override public DataRowVersion SourceVersion { // V1.2.3300, XXXParameter V1.0.3300 get { DataRowVersion sourceVersion = _sourceVersion; return ((0 != sourceVersion) ? sourceVersion : DataRowVersion.Current); } set { switch(value) { // @perfnote: Enum.IsDefined case DataRowVersion.Original: case DataRowVersion.Current: case DataRowVersion.Proposed: case DataRowVersion.Default: _sourceVersion = value; break; default: throw ADP.InvalidDataRowVersion(value); } } } private void CloneHelperCore(PARAMETEROBJECTNAME destination) { destination._value = _value; // NOTE: _parent is not cloned destination._direction = _direction; destination._size = _size; #if USEOFFSET destination._offset = _offset; #endif destination._sourceColumn = _sourceColumn; destination._sourceVersion = _sourceVersion; destination._sourceColumnNullMapping = _sourceColumnNullMapping; destination._isNullable = _isNullable; } internal void CopyTo(DbParameter destination) { ADP.CheckArgumentNull(destination, "destination"); CloneHelper((PARAMETEROBJECTNAME)destination); } internal object CompareExchangeParent(object value, object comparand) { // the interlock guarantees same parameter won't belong to multiple collections // at the same time, but to actually occur the user must really try // since we never declared thread safety, we don't care at this time //return System.Threading.Interlocked.CompareExchange(ref _parent, value, comparand); object parent = _parent; if (comparand == parent) { _parent = value; } return parent; } internal void ResetParent() { _parent = null; } ////// /// ///override public string ToString() { // V1.2.3300, XXXParameter V1.0.3300 return ParameterName; } private byte ValuePrecisionCore(object value) { // V1.2.3300 if (value is Decimal) { return ((System.Data.SqlTypes.SqlDecimal)(Decimal) value).Precision; // WebData 102913 } return 0; } private byte ValueScaleCore(object value) { // V1.2.3300 if (value is Decimal) { return (byte)((Decimal.GetBits((Decimal)value)[3] & 0x00ff0000) >> 0x10); } return 0; } private int ValueSizeCore(object value) { // V1.2.3300 if (!ADP.IsNull(value)) { string svalue = (value as string); if (null != svalue) { return svalue.Length; } byte[] bvalue = (value as byte[]); if (null != bvalue) { return bvalue.Length; } char[] cvalue = (value as char[]); if (null != cvalue) { return cvalue.Length; } if ((value is byte) || (value is char)) { return 1; } } return 0; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ // // Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- namespace NAMESPACE { using System; using System.ComponentModel; using System.Data; using System.Data.Common; using System.Globalization; public sealed partial class PARAMETEROBJECTNAME : DbParameter { // V1.2.3300 private object _value; private object _parent; private ParameterDirection _direction; private int? _size; #if USEOFFSET private int _offset; #endif private string _sourceColumn; private DataRowVersion _sourceVersion; private bool _sourceColumnNullMapping; private bool? _isNullable; private object _coercedValue; private PARAMETEROBJECTNAME(PARAMETEROBJECTNAME source) : this() { // V1.2.3300, Clone ADP.CheckArgumentNull(source, "source"); source.CloneHelper(this); ICloneable cloneable = (_value as ICloneable); if (null != cloneable) { // MDAC 49322 _value = cloneable.Clone(); } } private object CoercedValue { // V1.2.3300 get { return _coercedValue; } set { _coercedValue = value; } } ////// /// [ RefreshProperties(RefreshProperties.All), RESNAMESPACE.ResCategoryAttribute(Res.DataCategory_Data), RESNAMESPACE.ResDescriptionAttribute(Res.DbParameter_Direction), ] override public ParameterDirection Direction { // V1.2.3300, XXXParameter V1.0.3300 get { ParameterDirection direction = _direction; return ((0 != direction) ? direction : ParameterDirection.Input); } set { if (_direction != value) { switch (value) { // @perfnote: Enum.IsDefined case ParameterDirection.Input: case ParameterDirection.Output: case ParameterDirection.InputOutput: case ParameterDirection.ReturnValue: PropertyChanging(); _direction = value; break; default: throw ADP.InvalidParameterDirection(value); } } } } ////// /// override public bool IsNullable { // V1.2.3300, XXXParameter V1.0.3300 get { bool result = this._isNullable.HasValue ? this._isNullable.Value : true; return result; } set { _isNullable = value; } } #if USEOFFSET ////// /// [ Browsable(false), EditorBrowsableAttribute(EditorBrowsableState.Advanced), // MDAC 69508 RESNAMESPACE.ResCategoryAttribute(Res.DataCategory_Data), RESNAMESPACE.ResDescriptionAttribute(Res.DbParameter_Offset), ] public int Offset { get { return _offset; } set { if (value < 0) { throw ADP.InvalidOffsetValue(value); } _offset = value; } } #else internal int Offset { get { return 0; } } #endif ////// /// [ RESNAMESPACE.ResCategoryAttribute(Res.DataCategory_Data), RESNAMESPACE.ResDescriptionAttribute(Res.DbParameter_Size), ] override public int Size { // V1.2.3300, XXXParameter V1.0.3300 get { int size = _size.HasValue ? _size.Value : 0; if (0 == size) { size = ValueSize(Value); } return size; } set { if (!_size.HasValue || _size.Value != value) { if (value < -1) { throw ADP.InvalidSizeValue(value); } PropertyChanging(); if (0 == value) { _size = null; } else { _size = value; } } } } private void ResetSize() { if (_size.HasValue) { PropertyChanging(); _size = null; } } private bool ShouldSerializeSize() { // V1.2.3300 return (_size.HasValue && _size.Value != 0); } ////// /// [ RESNAMESPACE.ResCategoryAttribute(Res.DataCategory_Update), RESNAMESPACE.ResDescriptionAttribute(Res.DbParameter_SourceColumn), ] override public string SourceColumn { // V1.2.3300, XXXParameter V1.0.3300 get { string sourceColumn = _sourceColumn; return ((null != sourceColumn) ? sourceColumn : ADP.StrEmpty); } set { _sourceColumn = value; } } ////// /// public override bool SourceColumnNullMapping { get { return _sourceColumnNullMapping; } set { _sourceColumnNullMapping = value; } } ////// /// [ RESNAMESPACE.ResCategoryAttribute(Res.DataCategory_Update), RESNAMESPACE.ResDescriptionAttribute(Res.DbParameter_SourceVersion), ] override public DataRowVersion SourceVersion { // V1.2.3300, XXXParameter V1.0.3300 get { DataRowVersion sourceVersion = _sourceVersion; return ((0 != sourceVersion) ? sourceVersion : DataRowVersion.Current); } set { switch(value) { // @perfnote: Enum.IsDefined case DataRowVersion.Original: case DataRowVersion.Current: case DataRowVersion.Proposed: case DataRowVersion.Default: _sourceVersion = value; break; default: throw ADP.InvalidDataRowVersion(value); } } } private void CloneHelperCore(PARAMETEROBJECTNAME destination) { destination._value = _value; // NOTE: _parent is not cloned destination._direction = _direction; destination._size = _size; #if USEOFFSET destination._offset = _offset; #endif destination._sourceColumn = _sourceColumn; destination._sourceVersion = _sourceVersion; destination._sourceColumnNullMapping = _sourceColumnNullMapping; destination._isNullable = _isNullable; } internal void CopyTo(DbParameter destination) { ADP.CheckArgumentNull(destination, "destination"); CloneHelper((PARAMETEROBJECTNAME)destination); } internal object CompareExchangeParent(object value, object comparand) { // the interlock guarantees same parameter won't belong to multiple collections // at the same time, but to actually occur the user must really try // since we never declared thread safety, we don't care at this time //return System.Threading.Interlocked.CompareExchange(ref _parent, value, comparand); object parent = _parent; if (comparand == parent) { _parent = value; } return parent; } internal void ResetParent() { _parent = null; } ////// /// ///override public string ToString() { // V1.2.3300, XXXParameter V1.0.3300 return ParameterName; } private byte ValuePrecisionCore(object value) { // V1.2.3300 if (value is Decimal) { return ((System.Data.SqlTypes.SqlDecimal)(Decimal) value).Precision; // WebData 102913 } return 0; } private byte ValueScaleCore(object value) { // V1.2.3300 if (value is Decimal) { return (byte)((Decimal.GetBits((Decimal)value)[3] & 0x00ff0000) >> 0x10); } return 0; } private int ValueSizeCore(object value) { // V1.2.3300 if (!ADP.IsNull(value)) { string svalue = (value as string); if (null != svalue) { return svalue.Length; } byte[] bvalue = (value as byte[]); if (null != bvalue) { return bvalue.Length; } char[] cvalue = (value as char[]); if (null != cvalue) { return cvalue.Length; } if ((value is byte) || (value is char)) { return 1; } } return 0; } } } // 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
- OutputCacheSection.cs
- ParsedAttributeCollection.cs
- ParameterCollection.cs
- WeakReadOnlyCollection.cs
- ModelItemCollectionImpl.cs
- WebEncodingValidator.cs
- AdRotator.cs
- AssemblyUtil.cs
- RtfToXamlLexer.cs
- PerspectiveCamera.cs
- XmlSerializer.cs
- StorageBasedPackageProperties.cs
- sortedlist.cs
- MessageBox.cs
- TaskExtensions.cs
- WorkflowServiceOperationListItem.cs
- DelimitedListTraceListener.cs
- BitmapPalette.cs
- BinHexEncoder.cs
- FrameworkPropertyMetadata.cs
- StartUpEventArgs.cs
- FilteredDataSetHelper.cs
- NamedPipeTransportSecurity.cs
- ConstraintStruct.cs
- DataGridItemCollection.cs
- WindowsServiceCredential.cs
- AbandonedMutexException.cs
- SynchronizationFilter.cs
- CodeChecksumPragma.cs
- CollectionsUtil.cs
- RelationalExpressions.cs
- SQLGuidStorage.cs
- PageContent.cs
- TransactionChannelFactory.cs
- FontStretch.cs
- XmlSerializableServices.cs
- RbTree.cs
- ConfigViewGenerator.cs
- ActivityDesignerHelper.cs
- KeySplineConverter.cs
- commandenforcer.cs
- ServiceDescriptionContext.cs
- DataProtection.cs
- SystemThemeKey.cs
- HttpRuntime.cs
- PrimitiveType.cs
- BaseTemplateParser.cs
- OutputWindow.cs
- EditingCommands.cs
- HealthMonitoringSectionHelper.cs
- MetafileHeaderWmf.cs
- ConsoleKeyInfo.cs
- ImageListStreamer.cs
- DetailsViewPageEventArgs.cs
- XmlNavigatorStack.cs
- HtmlInputHidden.cs
- MergePropertyDescriptor.cs
- MultipleCopiesCollection.cs
- EraserBehavior.cs
- DataGridCellEditEndingEventArgs.cs
- XmlEventCache.cs
- Decoder.cs
- DataGridViewCellStyleConverter.cs
- NodeLabelEditEvent.cs
- SiteMapNodeItem.cs
- DocobjHost.cs
- RequestContext.cs
- Guid.cs
- UserNamePasswordClientCredential.cs
- CanonicalFormWriter.cs
- DataListItemEventArgs.cs
- IsolationInterop.cs
- Stylesheet.cs
- RadioButtonPopupAdapter.cs
- Wildcard.cs
- DataGrid.cs
- SecurityCriticalDataForSet.cs
- TextServicesCompartmentEventSink.cs
- ThreadLocal.cs
- RemoteWebConfigurationHost.cs
- SqlReorderer.cs
- AvTraceDetails.cs
- ToolStripGrip.cs
- ServiceSecurityContext.cs
- HtmlInputFile.cs
- InputLanguageSource.cs
- StorageEntityContainerMapping.cs
- FillRuleValidation.cs
- GlobalAclOperationRequirement.cs
- Enlistment.cs
- SubpageParagraph.cs
- AllMembershipCondition.cs
- DataBoundControlHelper.cs
- SecurityProtocolFactory.cs
- BeginEvent.cs
- ApplicationInterop.cs
- ArrayMergeHelper.cs
- StorageConditionPropertyMapping.cs
- MenuBase.cs
- Label.cs