Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / fx / src / CompMod / System / ComponentModel / TypeListConverter.cs / 1 / TypeListConverter.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ namespace System.ComponentModel { using Microsoft.Win32; using System.Collections; using System.ComponentModel.Design.Serialization; using System.Diagnostics; using System.Globalization; using System.Reflection; using System.Runtime.InteropServices; using System.Runtime.Remoting; using System.Runtime.Serialization.Formatters; using System.Security.Permissions; ////// [HostProtection(SharedState = true)] public abstract class TypeListConverter : TypeConverter { private Type[] types; private StandardValuesCollection values; ///Provides a type /// converter that can be used to populate a list box with available types. ////// protected TypeListConverter(Type[] types) { this.types = types; } ///Initializes a new instance of the ///class using /// the type array as the available types. /// /// public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) { if (sourceType == typeof(string)) { return true; } return base.CanConvertFrom(context, sourceType); } ///Gets a value indicating whether this converter /// can convert an object in the given source type to an enumeration object using /// the specified context. ////// 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. ////// /// public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) { if (value is string) { foreach(Type t in types) { if (value.Equals(t.FullName)) { return t; } } } return base.ConvertFrom(context, culture, value); } ///Converts the specified value object to an enumeration object. ////// /// public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType == null) { throw new ArgumentNullException("destinationType"); } if (destinationType == typeof(string)) { if (value == null) { return SR.GetString(SR.toStringNone); } else { return((Type)value).FullName; } } if (destinationType == typeof(InstanceDescriptor) && value is Type) { MethodInfo method = typeof(Type).GetMethod("GetType", new Type[] {typeof(string)}); if (method != null) { return new InstanceDescriptor(method, new object[] {((Type)value).AssemblyQualifiedName}); } } return base.ConvertTo(context, culture, value, destinationType); } ///Converts the given value object to the specified destination type. ////// /// public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context) { if (values == null) { object[] objTypes; if (types != null) { objTypes = new object[types.Length]; Array.Copy(types, objTypes, types.Length); } else { objTypes = null; } values = new StandardValuesCollection(objTypes); } return values; } ///Gets a collection of standard values for the data type this validator is /// designed for. ////// /// public override bool GetStandardValuesExclusive(ITypeDescriptorContext context) { return true; } ///Gets a value indicating whether the list of standard values returned from /// ///is an exclusive list. /// /// public override bool GetStandardValuesSupported(ITypeDescriptorContext context) { return true; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //Gets a value indicating whether this object supports a /// standard set of values that can be picked from a list using the specified /// context. ///// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ namespace System.ComponentModel { using Microsoft.Win32; using System.Collections; using System.ComponentModel.Design.Serialization; using System.Diagnostics; using System.Globalization; using System.Reflection; using System.Runtime.InteropServices; using System.Runtime.Remoting; using System.Runtime.Serialization.Formatters; using System.Security.Permissions; ////// [HostProtection(SharedState = true)] public abstract class TypeListConverter : TypeConverter { private Type[] types; private StandardValuesCollection values; ///Provides a type /// converter that can be used to populate a list box with available types. ////// protected TypeListConverter(Type[] types) { this.types = types; } ///Initializes a new instance of the ///class using /// the type array as the available types. /// /// public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) { if (sourceType == typeof(string)) { return true; } return base.CanConvertFrom(context, sourceType); } ///Gets a value indicating whether this converter /// can convert an object in the given source type to an enumeration object using /// the specified context. ////// 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. ////// /// public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) { if (value is string) { foreach(Type t in types) { if (value.Equals(t.FullName)) { return t; } } } return base.ConvertFrom(context, culture, value); } ///Converts the specified value object to an enumeration object. ////// /// public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType == null) { throw new ArgumentNullException("destinationType"); } if (destinationType == typeof(string)) { if (value == null) { return SR.GetString(SR.toStringNone); } else { return((Type)value).FullName; } } if (destinationType == typeof(InstanceDescriptor) && value is Type) { MethodInfo method = typeof(Type).GetMethod("GetType", new Type[] {typeof(string)}); if (method != null) { return new InstanceDescriptor(method, new object[] {((Type)value).AssemblyQualifiedName}); } } return base.ConvertTo(context, culture, value, destinationType); } ///Converts the given value object to the specified destination type. ////// /// public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context) { if (values == null) { object[] objTypes; if (types != null) { objTypes = new object[types.Length]; Array.Copy(types, objTypes, types.Length); } else { objTypes = null; } values = new StandardValuesCollection(objTypes); } return values; } ///Gets a collection of standard values for the data type this validator is /// designed for. ////// /// public override bool GetStandardValuesExclusive(ITypeDescriptorContext context) { return true; } ///Gets a value indicating whether the list of standard values returned from /// ///is an exclusive list. /// /// public override bool GetStandardValuesSupported(ITypeDescriptorContext context) { return true; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.Gets a value indicating whether this object supports a /// standard set of values that can be picked from a list using the specified /// context. ///
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- HandlerBase.cs
- SqlParameter.cs
- EdmFunction.cs
- TableCell.cs
- ValidationSummary.cs
- MaterialGroup.cs
- Panel.cs
- ToolStripContentPanel.cs
- DrawingDrawingContext.cs
- EventPropertyMap.cs
- RoutedUICommand.cs
- HttpCachePolicy.cs
- DataSourceCache.cs
- DiscoveryDocumentLinksPattern.cs
- InvalidEnumArgumentException.cs
- SchemaImporter.cs
- SmtpTransport.cs
- ConfigurationStrings.cs
- SemanticKeyElement.cs
- ClientSession.cs
- SelectionPattern.cs
- System.Data_BID.cs
- OdbcRowUpdatingEvent.cs
- WebServiceTypeData.cs
- OperationAbortedException.cs
- WebServiceEnumData.cs
- AddInDeploymentState.cs
- SafeRightsManagementPubHandle.cs
- CreateCardRequest.cs
- TrackingLocationCollection.cs
- ExpressionLink.cs
- ApplicationDirectory.cs
- _FixedSizeReader.cs
- PropertyIDSet.cs
- RoleServiceManager.cs
- StringFormat.cs
- XNodeSchemaApplier.cs
- WeakReference.cs
- ArrayWithOffset.cs
- prompt.cs
- TextTreeNode.cs
- WebScriptServiceHostFactory.cs
- UnsignedPublishLicense.cs
- HttpRequest.cs
- GeometryHitTestParameters.cs
- RegexMatch.cs
- Panel.cs
- DbMetaDataFactory.cs
- SendSecurityHeaderElement.cs
- ObjectDataSourceMethodEventArgs.cs
- ProcessThread.cs
- XmlCharacterData.cs
- PopOutPanel.cs
- ConditionalExpression.cs
- SecurityHelper.cs
- X500Name.cs
- XmlUtf8RawTextWriter.cs
- TextTreeFixupNode.cs
- InputLanguage.cs
- ArithmeticException.cs
- MobileControlsSectionHandler.cs
- TypedElement.cs
- DataGridColumn.cs
- ProjectionCamera.cs
- UnmanagedBitmapWrapper.cs
- DbConnectionInternal.cs
- ConstructorBuilder.cs
- UserControlBuildProvider.cs
- XmlConvert.cs
- ReplacementText.cs
- RestClientProxyHandler.cs
- MultilineStringConverter.cs
- RadioButtonStandardAdapter.cs
- SolidBrush.cs
- DirectionalLight.cs
- TranslateTransform3D.cs
- MediaElementAutomationPeer.cs
- ConfigurationStrings.cs
- RouteItem.cs
- DecimalConstantAttribute.cs
- QilList.cs
- RightsManagementPermission.cs
- XmlSerializationWriter.cs
- ConfigurationSectionCollection.cs
- SafeRegistryHandle.cs
- ExcCanonicalXml.cs
- ConfigurationManagerHelper.cs
- CustomCategoryAttribute.cs
- CustomAssemblyResolver.cs
- _ConnectOverlappedAsyncResult.cs
- KeyedQueue.cs
- AuthenticationModuleElement.cs
- TaskFileService.cs
- MaskInputRejectedEventArgs.cs
- DurableInstanceProvider.cs
- OutputCacheProfile.cs
- Operator.cs
- WindowVisualStateTracker.cs
- ContentControl.cs
- SignedXml.cs