Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / fx / src / WinForms / Managed / System / WinForms / ComponentModel / COM2Interop / COM2ExtendedTypeConverter.cs / 1 / COM2ExtendedTypeConverter.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Windows.Forms.ComponentModel.Com2Interop { using System.Diagnostics; using System; using System.ComponentModel; using System.ComponentModel.Design; using System.Drawing; using Microsoft.Win32; using System.Globalization; using System.Collections; ////// /// Base class for value editors that extend basic functionality. /// calls will be delegated to the "base value editor". /// internal class Com2ExtendedTypeConverter : TypeConverter { private TypeConverter innerConverter; public Com2ExtendedTypeConverter(TypeConverter innerConverter) { this.innerConverter = innerConverter; } public Com2ExtendedTypeConverter(Type baseType) { this.innerConverter = TypeDescriptor.GetConverter(baseType); } public TypeConverter InnerConverter { get { return innerConverter; } } public TypeConverter GetWrappedConverter(Type t) { TypeConverter converter = innerConverter; while (converter != null) { if (t.IsInstanceOfType(converter)) { return converter; } if (converter is Com2ExtendedTypeConverter) { converter = ((Com2ExtendedTypeConverter)converter).InnerConverter; } else { break; } } return null; } ////// /// Determines if this converter can convert an object in the given source /// type to the native type of the converter. /// public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) { if (innerConverter != null) { return innerConverter.CanConvertFrom(context, sourceType); } return base.CanConvertFrom(context, sourceType); } ////// /// Determines if this converter can convert an object to the given destination /// type. /// public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) { if (innerConverter != null) { return innerConverter.CanConvertTo(context, destinationType); } return base.CanConvertTo(context, destinationType); } ////// /// Converts the given object to the converter's native type. /// public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) { if (innerConverter != null) { return innerConverter.ConvertFrom(context, culture, value); } return base.ConvertFrom(context, culture, value); } ////// /// 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 (innerConverter != null) { return innerConverter.ConvertTo(context, culture, value, destinationType); } return base.ConvertTo(context, culture, value, destinationType); } ////// /// Creates an instance of this type given a set of property values /// for the object. This is useful for objects that are immutable, but still /// want to provide changable properties. /// public override object CreateInstance(ITypeDescriptorContext context, IDictionary propertyValues) { if (innerConverter != null) { return innerConverter.CreateInstance(context, propertyValues); } return base.CreateInstance(context, propertyValues); } ////// /// Determines if changing a value on this object should require a call to /// CreateInstance to create a new value. /// public override bool GetCreateInstanceSupported(ITypeDescriptorContext context) { if (innerConverter != null) { return innerConverter.GetCreateInstanceSupported(context); } return base.GetCreateInstanceSupported(context); } ////// /// Retrieves the set of properties for this type. By default, a type has /// does not return any properties. An easy implementation of this method /// can just call TypeDescriptor.GetProperties for the correct data type. /// public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object value, Attribute[] attributes) { if (innerConverter != null) { return innerConverter.GetProperties(context, value, attributes); } return base.GetProperties(context, value, attributes); } ////// /// Determines if this object supports properties. By default, this /// is false. /// public override bool GetPropertiesSupported(ITypeDescriptorContext context) { if (innerConverter != null) { return innerConverter.GetPropertiesSupported(context); } return base.GetPropertiesSupported(context); } ////// /// Retrieves a collection containing a set of standard values /// for the data type this validator is designed for. This /// will return null if the data type does not support a /// standard set of values. /// public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context) { if (innerConverter != null) { return innerConverter.GetStandardValues(context); } return base.GetStandardValues(context); } ////// /// Determines if the list of standard values returned from /// GetStandardValues is an exclusive list. If the list /// is exclusive, then no other values are valid, such as /// in an enum data type. If the list is not exclusive, /// then there are other valid values besides the list of /// standard values GetStandardValues provides. /// public override bool GetStandardValuesExclusive(ITypeDescriptorContext context) { if (innerConverter != null) { return innerConverter.GetStandardValuesExclusive(context); } return base.GetStandardValuesExclusive(context); } ////// /// Determines if this object supports a standard set of values /// that can be picked from a list. /// public override bool GetStandardValuesSupported(ITypeDescriptorContext context) { if (innerConverter != null) { return innerConverter.GetStandardValuesSupported(context); } return base.GetStandardValuesSupported(context); } ////// /// Determines if the given object value is valid for this type. /// public override bool IsValid(ITypeDescriptorContext context, object value) { if (innerConverter != null) { return innerConverter.IsValid(context, value); } return base.IsValid(context, value); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Windows.Forms.ComponentModel.Com2Interop { using System.Diagnostics; using System; using System.ComponentModel; using System.ComponentModel.Design; using System.Drawing; using Microsoft.Win32; using System.Globalization; using System.Collections; ////// /// Base class for value editors that extend basic functionality. /// calls will be delegated to the "base value editor". /// internal class Com2ExtendedTypeConverter : TypeConverter { private TypeConverter innerConverter; public Com2ExtendedTypeConverter(TypeConverter innerConverter) { this.innerConverter = innerConverter; } public Com2ExtendedTypeConverter(Type baseType) { this.innerConverter = TypeDescriptor.GetConverter(baseType); } public TypeConverter InnerConverter { get { return innerConverter; } } public TypeConverter GetWrappedConverter(Type t) { TypeConverter converter = innerConverter; while (converter != null) { if (t.IsInstanceOfType(converter)) { return converter; } if (converter is Com2ExtendedTypeConverter) { converter = ((Com2ExtendedTypeConverter)converter).InnerConverter; } else { break; } } return null; } ////// /// Determines if this converter can convert an object in the given source /// type to the native type of the converter. /// public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) { if (innerConverter != null) { return innerConverter.CanConvertFrom(context, sourceType); } return base.CanConvertFrom(context, sourceType); } ////// /// Determines if this converter can convert an object to the given destination /// type. /// public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) { if (innerConverter != null) { return innerConverter.CanConvertTo(context, destinationType); } return base.CanConvertTo(context, destinationType); } ////// /// Converts the given object to the converter's native type. /// public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) { if (innerConverter != null) { return innerConverter.ConvertFrom(context, culture, value); } return base.ConvertFrom(context, culture, value); } ////// /// 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 (innerConverter != null) { return innerConverter.ConvertTo(context, culture, value, destinationType); } return base.ConvertTo(context, culture, value, destinationType); } ////// /// Creates an instance of this type given a set of property values /// for the object. This is useful for objects that are immutable, but still /// want to provide changable properties. /// public override object CreateInstance(ITypeDescriptorContext context, IDictionary propertyValues) { if (innerConverter != null) { return innerConverter.CreateInstance(context, propertyValues); } return base.CreateInstance(context, propertyValues); } ////// /// Determines if changing a value on this object should require a call to /// CreateInstance to create a new value. /// public override bool GetCreateInstanceSupported(ITypeDescriptorContext context) { if (innerConverter != null) { return innerConverter.GetCreateInstanceSupported(context); } return base.GetCreateInstanceSupported(context); } ////// /// Retrieves the set of properties for this type. By default, a type has /// does not return any properties. An easy implementation of this method /// can just call TypeDescriptor.GetProperties for the correct data type. /// public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object value, Attribute[] attributes) { if (innerConverter != null) { return innerConverter.GetProperties(context, value, attributes); } return base.GetProperties(context, value, attributes); } ////// /// Determines if this object supports properties. By default, this /// is false. /// public override bool GetPropertiesSupported(ITypeDescriptorContext context) { if (innerConverter != null) { return innerConverter.GetPropertiesSupported(context); } return base.GetPropertiesSupported(context); } ////// /// Retrieves a collection containing a set of standard values /// for the data type this validator is designed for. This /// will return null if the data type does not support a /// standard set of values. /// public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context) { if (innerConverter != null) { return innerConverter.GetStandardValues(context); } return base.GetStandardValues(context); } ////// /// Determines if the list of standard values returned from /// GetStandardValues is an exclusive list. If the list /// is exclusive, then no other values are valid, such as /// in an enum data type. If the list is not exclusive, /// then there are other valid values besides the list of /// standard values GetStandardValues provides. /// public override bool GetStandardValuesExclusive(ITypeDescriptorContext context) { if (innerConverter != null) { return innerConverter.GetStandardValuesExclusive(context); } return base.GetStandardValuesExclusive(context); } ////// /// Determines if this object supports a standard set of values /// that can be picked from a list. /// public override bool GetStandardValuesSupported(ITypeDescriptorContext context) { if (innerConverter != null) { return innerConverter.GetStandardValuesSupported(context); } return base.GetStandardValuesSupported(context); } ////// /// Determines if the given object value is valid for this type. /// public override bool IsValid(ITypeDescriptorContext context, object value) { if (innerConverter != null) { return innerConverter.IsValid(context, value); } return base.IsValid(context, value); } } } // 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
- PackageFilter.cs
- ToolStripPanelRenderEventArgs.cs
- XmlIterators.cs
- NumberFunctions.cs
- SafePEFileHandle.cs
- VisualStyleElement.cs
- XsdValidatingReader.cs
- ManagementInstaller.cs
- ComponentChangingEvent.cs
- TextEditorSpelling.cs
- JsonFormatReaderGenerator.cs
- SchemaManager.cs
- ListBoxAutomationPeer.cs
- TableLayoutPanelBehavior.cs
- CompatibleIComparer.cs
- DataRecordObjectView.cs
- FixUpCollection.cs
- OutputCacheProviderCollection.cs
- WindowsSecurityToken.cs
- Vector.cs
- CapabilitiesRule.cs
- ToolBar.cs
- Utility.cs
- IHttpResponseInternal.cs
- SingleAnimationUsingKeyFrames.cs
- ColorKeyFrameCollection.cs
- Delay.cs
- Exception.cs
- PostBackTrigger.cs
- ProgressBar.cs
- DebugManager.cs
- ParseNumbers.cs
- ConsoleKeyInfo.cs
- Method.cs
- MimeXmlImporter.cs
- WebPartVerbsEventArgs.cs
- OleDbTransaction.cs
- AssociativeAggregationOperator.cs
- DataGridItemAutomationPeer.cs
- IImplicitResourceProvider.cs
- RadioButtonAutomationPeer.cs
- SectionInformation.cs
- DataGridRelationshipRow.cs
- SyndicationDeserializer.cs
- NullableIntAverageAggregationOperator.cs
- SecurityHeaderLayout.cs
- GlyphElement.cs
- ErrorRuntimeConfig.cs
- Graph.cs
- ToolStripContentPanel.cs
- GenericEnumConverter.cs
- StringArrayConverter.cs
- SamlAuthorizationDecisionClaimResource.cs
- MaskedTextProvider.cs
- ListBindingConverter.cs
- PtsHost.cs
- PreparingEnlistment.cs
- X509ChainPolicy.cs
- TextEmbeddedObject.cs
- RegistryConfigurationProvider.cs
- ViewBox.cs
- EventMappingSettingsCollection.cs
- PropertyGridDesigner.cs
- ProjectionAnalyzer.cs
- SqlComparer.cs
- COAUTHIDENTITY.cs
- RIPEMD160Managed.cs
- Path.cs
- ToolBarPanel.cs
- HtmlTextViewAdapter.cs
- FormViewPageEventArgs.cs
- ScrollChrome.cs
- DbParameterCollectionHelper.cs
- ConvertBinder.cs
- SqlParameter.cs
- WebPartCollection.cs
- Utils.cs
- FrameworkElementFactoryMarkupObject.cs
- XmlSerializationReader.cs
- PeerNameRegistration.cs
- DocumentCollection.cs
- PenThread.cs
- Command.cs
- LineBreakRecord.cs
- TextProviderWrapper.cs
- UnsafeNativeMethods.cs
- ProxyBuilder.cs
- xdrvalidator.cs
- TextDpi.cs
- TTSEngineTypes.cs
- CryptographicAttribute.cs
- ObfuscationAttribute.cs
- XmlTextEncoder.cs
- PageAsyncTask.cs
- Attributes.cs
- SimpleFileLog.cs
- Int16KeyFrameCollection.cs
- ListenerHandler.cs
- MethodMessage.cs
- StructuralType.cs