Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / Data / System / Data / ConstraintConverter.cs / 1 / ConstraintConverter.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //[....] //----------------------------------------------------------------------------- namespace System.Data { using System; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Globalization; ////// sealed internal class ConstraintConverter : ExpandableObjectConverter { // converter classes should have public ctor public ConstraintConverter() { } ////// public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) { if (destinationType == typeof(InstanceDescriptor)) { return true; } return base.CanConvertTo(context, destinationType); } ///Gets a value indicating whether this converter can /// convert an object to the given destination type using the context. ////// Converts the given object to another type. The most common types to convert /// are to and from a string object. The default implementation will make a call /// to ToString on the object if the object is valid and if the destination /// type is string. If this cannot convert to the desitnation type, this will /// throw a NotSupportedException. /// public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType == null) { throw new ArgumentNullException("destinationType"); } if (destinationType == typeof(InstanceDescriptor) && value is Constraint) { if (value is UniqueConstraint) { UniqueConstraint constr = (UniqueConstraint)value; System.Reflection.ConstructorInfo ctor = typeof(UniqueConstraint).GetConstructor(new Type[] { typeof(string), typeof(string[]), typeof(bool) } ); if (ctor != null) return new InstanceDescriptor(ctor, new object[] { constr.ConstraintName, constr.ColumnNames, constr.IsPrimaryKey }); } else { ForeignKeyConstraint constr = (ForeignKeyConstraint)value; System.Reflection.ConstructorInfo ctor = typeof(ForeignKeyConstraint).GetConstructor(new Type[] { typeof(string), typeof(string), typeof(string[]), typeof(string[]), typeof(AcceptRejectRule), typeof(Rule), typeof(Rule) } ); if (ctor != null) return new InstanceDescriptor(ctor, new object[] { constr.ConstraintName, constr.ParentKey.Table.TableName, constr.ParentColumnNames, constr.ChildColumnNames, constr.AcceptRejectRule, constr.DeleteRule, constr.UpdateRule }); } } return base.ConvertTo(context, culture, value, destinationType); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //[....] //----------------------------------------------------------------------------- namespace System.Data { using System; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Globalization; ////// sealed internal class ConstraintConverter : ExpandableObjectConverter { // converter classes should have public ctor public ConstraintConverter() { } ////// public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) { if (destinationType == typeof(InstanceDescriptor)) { return true; } return base.CanConvertTo(context, destinationType); } ///Gets a value indicating whether this converter can /// convert an object to the given destination type using the context. ////// Converts the given object to another type. The most common types to convert /// are to and from a string object. The default implementation will make a call /// to ToString on the object if the object is valid and if the destination /// type is string. If this cannot convert to the desitnation type, this will /// throw a NotSupportedException. /// public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType == null) { throw new ArgumentNullException("destinationType"); } if (destinationType == typeof(InstanceDescriptor) && value is Constraint) { if (value is UniqueConstraint) { UniqueConstraint constr = (UniqueConstraint)value; System.Reflection.ConstructorInfo ctor = typeof(UniqueConstraint).GetConstructor(new Type[] { typeof(string), typeof(string[]), typeof(bool) } ); if (ctor != null) return new InstanceDescriptor(ctor, new object[] { constr.ConstraintName, constr.ColumnNames, constr.IsPrimaryKey }); } else { ForeignKeyConstraint constr = (ForeignKeyConstraint)value; System.Reflection.ConstructorInfo ctor = typeof(ForeignKeyConstraint).GetConstructor(new Type[] { typeof(string), typeof(string), typeof(string[]), typeof(string[]), typeof(AcceptRejectRule), typeof(Rule), typeof(Rule) } ); if (ctor != null) return new InstanceDescriptor(ctor, new object[] { constr.ConstraintName, constr.ParentKey.Table.TableName, constr.ParentColumnNames, constr.ChildColumnNames, constr.AcceptRejectRule, constr.DeleteRule, constr.UpdateRule }); } } return base.ConvertTo(context, culture, value, destinationType); } } } // 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
- ObjectConverter.cs
- ContentIterators.cs
- CounterSetInstanceCounterDataSet.cs
- SharedPersonalizationStateInfo.cs
- TemplateBaseAction.cs
- XmlEnumAttribute.cs
- ListView.cs
- DataGridViewCellStateChangedEventArgs.cs
- SessionEndingEventArgs.cs
- SelectionGlyph.cs
- DataGridView.cs
- RoleManagerEventArgs.cs
- XmlValidatingReaderImpl.cs
- DesignerHost.cs
- URLString.cs
- LocatorManager.cs
- TextBox.cs
- Matrix3D.cs
- ListBox.cs
- DataBoundControl.cs
- HMACSHA256.cs
- IconConverter.cs
- JournalEntryListConverter.cs
- CookieHandler.cs
- LambdaCompiler.Lambda.cs
- SystemBrushes.cs
- FormsAuthenticationConfiguration.cs
- TextTreeObjectNode.cs
- AlignmentYValidation.cs
- SecurityValidationBehavior.cs
- EntityDataSourceDesignerHelper.cs
- OnOperation.cs
- MultiTouchSystemGestureLogic.cs
- OrderedDictionaryStateHelper.cs
- CryptoKeySecurity.cs
- XmlMapping.cs
- SqlInfoMessageEvent.cs
- RichTextBoxContextMenu.cs
- OdbcDataAdapter.cs
- WebPartVerbCollection.cs
- SmtpMail.cs
- RequestQueryProcessor.cs
- FontSourceCollection.cs
- SqlCharStream.cs
- TemplateControlCodeDomTreeGenerator.cs
- Faults.cs
- ServiceModelConfigurationSectionCollection.cs
- FunctionCommandText.cs
- DBCommand.cs
- RepeatBehavior.cs
- StringToken.cs
- GifBitmapDecoder.cs
- CfgParser.cs
- IISMapPath.cs
- DataGridViewAutoSizeColumnsModeEventArgs.cs
- NetworkInterface.cs
- DesignerActionService.cs
- BuildProvider.cs
- RemotingException.cs
- DataSourceDescriptorCollection.cs
- ErrorFormatter.cs
- SystemSounds.cs
- InterleavedZipPartStream.cs
- FrameworkElement.cs
- PointValueSerializer.cs
- DataGridViewRowStateChangedEventArgs.cs
- ScrollItemProviderWrapper.cs
- QuaternionAnimationUsingKeyFrames.cs
- ClientSettingsStore.cs
- WebPartEventArgs.cs
- DataGridViewCellCancelEventArgs.cs
- EntityTypeEmitter.cs
- PseudoWebRequest.cs
- StaticSiteMapProvider.cs
- FixedSOMPageElement.cs
- StickyNote.cs
- TouchesOverProperty.cs
- MasterPageCodeDomTreeGenerator.cs
- Vector3D.cs
- BaseAppDomainProtocolHandler.cs
- SelectionEditor.cs
- SqlNodeTypeOperators.cs
- SiteMap.cs
- Int32Collection.cs
- SqlBuffer.cs
- InputElement.cs
- Publisher.cs
- DesignerSerializationOptionsAttribute.cs
- ObjectSerializerFactory.cs
- Point.cs
- ValidationHelper.cs
- BinaryFormatter.cs
- SecurityNegotiationException.cs
- ServiceDescriptionImporter.cs
- ExponentialEase.cs
- MoveSizeWinEventHandler.cs
- ColorAnimationBase.cs
- DragEvent.cs
- FtpWebResponse.cs
- LocatorGroup.cs