Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / CompMod / System / ComponentModel / TimeSpanConverter.cs / 1 / TimeSpanConverter.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ namespace System.ComponentModel { using Microsoft.Win32; 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; using System.Threading; ////// [HostProtection(SharedState = true)] public class TimeSpanConverter : TypeConverter { ///Provides a type converter to convert ////// objects to and from various /// other representations. /// 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 a ///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) { string text = ((string)value).Trim(); try { return TimeSpan.Parse(text); } catch (FormatException e) { throw new FormatException(SR.GetString(SR.ConvertInvalidPrimitive, (string)value, "TimeSpan"), e); } } return base.ConvertFrom(context, culture, value); } ///Converts the given object to a ////// object. /// 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 TimeSpan) { MethodInfo method = typeof(TimeSpan).GetMethod("Parse", new Type[] {typeof(string)}); if (method != null) { return new InstanceDescriptor(method, new object[] {value.ToString()}); } } return base.ConvertTo(context, culture, value, destinationType); } } }
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- PrintDialog.cs
- xmlglyphRunInfo.cs
- XmlMemberMapping.cs
- MemberDomainMap.cs
- ReferencedAssembly.cs
- ActivityInterfaces.cs
- ColorKeyFrameCollection.cs
- RowSpanVector.cs
- OleDbDataAdapter.cs
- KeyedPriorityQueue.cs
- DirectoryNotFoundException.cs
- ConsoleCancelEventArgs.cs
- COMException.cs
- WindowsListViewSubItem.cs
- RectangleGeometry.cs
- DebugManager.cs
- InputScopeManager.cs
- ExpressionBinding.cs
- BezierSegment.cs
- SspiNegotiationTokenProvider.cs
- DynamicPhysicalDiscoSearcher.cs
- CodeParameterDeclarationExpression.cs
- PropertyEntry.cs
- Permission.cs
- InvariantComparer.cs
- IteratorFilter.cs
- FormsAuthenticationConfiguration.cs
- PathGeometry.cs
- SendReply.cs
- EnumerableRowCollection.cs
- CachingHintValidation.cs
- ObjectPersistData.cs
- MenuBindingsEditor.cs
- CompilerTypeWithParams.cs
- HttpGetClientProtocol.cs
- PatternMatcher.cs
- NotifyIcon.cs
- SourceElementsCollection.cs
- FirstMatchCodeGroup.cs
- SecurityCriticalDataForSet.cs
- MappedMetaModel.cs
- Animatable.cs
- IdentityHolder.cs
- ApplicationFileParser.cs
- MouseBinding.cs
- DataTable.cs
- UndoEngine.cs
- SplitContainer.cs
- WebServiceData.cs
- RichTextBoxDesigner.cs
- UIElementIsland.cs
- CalendarDay.cs
- Sequence.cs
- XmlSignatureProperties.cs
- PolicyStatement.cs
- cryptoapiTransform.cs
- DocumentSequenceHighlightLayer.cs
- XmlCharCheckingWriter.cs
- WebPartTracker.cs
- ProxyWebPartConnectionCollection.cs
- SHA256.cs
- SystemUnicastIPAddressInformation.cs
- ScrollableControl.cs
- externdll.cs
- MultiDataTrigger.cs
- X509Utils.cs
- StylusEventArgs.cs
- ControlParser.cs
- XmlSerializerFactory.cs
- smtppermission.cs
- WorkflowDebuggerSteppingAttribute.cs
- ImpersonationContext.cs
- SamlAction.cs
- SchemaNames.cs
- ComplexTypeEmitter.cs
- ThreadAttributes.cs
- SchemaElementLookUpTable.cs
- Wildcard.cs
- StrongNameMembershipCondition.cs
- LoginName.cs
- PluralizationServiceUtil.cs
- RowCache.cs
- DelegatedStream.cs
- HttpListener.cs
- ArgumentFixer.cs
- TextHidden.cs
- SqlXml.cs
- OutKeywords.cs
- SQLInt16Storage.cs
- SqlCommandSet.cs
- CookielessHelper.cs
- ApplicationSettingsBase.cs
- AlphaSortedEnumConverter.cs
- SoapObjectInfo.cs
- RoutedEventValueSerializer.cs
- DesignerTransactionCloseEvent.cs
- TaskbarItemInfo.cs
- InnerItemCollectionView.cs
- DockingAttribute.cs
- ProcessHost.cs