Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Base / System / Windows / Markup / DateTimeValueSerializer.cs / 1 / DateTimeValueSerializer.cs
/****************************************************************************\ * * File: DateTimeValueSerializer.cs * \***************************************************************************/ using System.Globalization; using System.Text; namespace System.Windows.Markup { //+------------------------------------------------------------------------------------- // // DateTimeValueSerializer // // This class converts DateTime values to/from string. We don't use the DateTimeConverter // because it doesn't support custom cultures, and in Xaml we require the converter to // support en-us culture. // //+------------------------------------------------------------------------------------- ////// ValueSerializer for DateTime. /// public class DateTimeValueSerializer : ValueSerializer { ////// Initializes a new instance of the public DateTimeValueSerializer() { } ///class. /// /// Indicate that we do convert DateTime's from string. /// public override bool CanConvertFromString(string value, IValueSerializerContext context) { return true; } ////// Indicate that we do convert a DateTime to string. /// public override bool CanConvertToString(object value, IValueSerializerContext context) { // Validate the input type if ( !(value is DateTime)) { throw new ArgumentException(SR.Get(SRID.General_Expected_Type, "DateTime"), "value"); } return true; } ////// Converts the given value object to a public override object ConvertFromString(string value, IValueSerializerContext context) { // Validate and clean up input. if( value == null ) { throw GetConvertFromException(value); } if( value.Length == 0 ) { return DateTime.MinValue; } // Get a DateTimeFormatInfo CultureInfo culture = CultureInfo.GetCultureInfo("en-US"); DateTimeFormatInfo dateTimeFormatInfo; dateTimeFormatInfo = (DateTimeFormatInfo)culture.GetFormat(typeof(DateTimeFormatInfo)); // Set the formatting style for round-tripping and to trim the string. DateTimeStyles dateTimeStyles = DateTimeStyles.RoundtripKind | DateTimeStyles.NoCurrentDateDefault | DateTimeStyles.AllowLeadingWhite | DateTimeStyles.AllowTrailingWhite; // Create the DateTime, using the DateTimeInfo if possible, and the culture otherwise. if (dateTimeFormatInfo != null) { return DateTime.Parse(value, dateTimeFormatInfo, dateTimeStyles); } else { // The culture didn't have a DateTimeFormatInfo. return DateTime.Parse(value, culture, dateTimeStyles); } } ///. /// /// Converts the given value object to a public override string ConvertToString(object value, IValueSerializerContext context) { if( value == null || !(value is DateTime)) { throw GetConvertToException( value, typeof(string) ); } DateTime dateTime = (DateTime)value; // Build up the format string to be used in DateTime.ToString() StringBuilder formatString = new StringBuilder("yyyy-MM-dd"); if (dateTime.TimeOfDay.TotalSeconds == 0) { // The time portion of this DateTime is exactly at midnight. // We don't include the time component if the Kind is unspecified. // Otherwise, we're going to be including the time zone info, so'll // we'll have to include the time. if( dateTime.Kind != DateTimeKind.Unspecified ) { formatString.Append("'T'HH':'mm"); } } else { // We're going to write out at least the hours/minutes formatString.Append("'T'HH':'mm"); if (dateTime.TimeOfDay.Seconds != 0 || dateTime.TimeOfDay.Milliseconds != 0) { // We have seconds, so we'll write them out too. formatString.Append("':'ss"); if (dateTime.TimeOfDay.Milliseconds != 0) { // And we have milliseconds formatString.Append("'.'FFFFFFF"); } } } // Add the format specifier that indicates we want the DateTimeKind to be // included in the output formulation -- UTC gets written out with a "Z", // and Local gets written out with e.g. "-08:00" for Pacific Standard Time. formatString.Append("K"); // We've finally got our format string built, we can create the string. return dateTime.ToString(formatString.ToString(), CultureInfo.GetCultureInfo("en-US") ); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.using the arguments. ///
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- FindCriteria11.cs
- GreenMethods.cs
- CookieParameter.cs
- DataGridViewColumnHeaderCell.cs
- ContextStaticAttribute.cs
- UpdateProgress.cs
- TraceData.cs
- ExtentKey.cs
- Label.cs
- DbParameterHelper.cs
- ServiceHttpModule.cs
- TransformGroup.cs
- BooleanFunctions.cs
- METAHEADER.cs
- HttpDebugHandler.cs
- HttpModulesInstallComponent.cs
- DatagramAdapter.cs
- PointHitTestParameters.cs
- DataRowChangeEvent.cs
- DBConnection.cs
- ChangeTracker.cs
- SingleResultAttribute.cs
- CallbackValidator.cs
- WindowsScrollBar.cs
- Exceptions.cs
- MobileUserControl.cs
- LogWriteRestartAreaAsyncResult.cs
- FixedTextPointer.cs
- XsltContext.cs
- ControlDesigner.cs
- WebPartExportVerb.cs
- BaseDataList.cs
- XPathSelectionIterator.cs
- LocatorGroup.cs
- SupportedAddressingMode.cs
- Misc.cs
- CheckBoxDesigner.cs
- VirtualPathProvider.cs
- ImageAutomationPeer.cs
- PackageDigitalSignature.cs
- PrimaryKeyTypeConverter.cs
- Speller.cs
- ThemeDirectoryCompiler.cs
- LineInfo.cs
- MeasureData.cs
- TypeReference.cs
- AnnotationStore.cs
- IPHostEntry.cs
- ContentHostHelper.cs
- RegistryConfigurationProvider.cs
- UrlPath.cs
- FamilyCollection.cs
- NavigateEvent.cs
- XmlUTF8TextReader.cs
- ContentElement.cs
- HttpModuleAction.cs
- SchemaManager.cs
- Cursor.cs
- ScriptReference.cs
- ObjectViewEntityCollectionData.cs
- ToolStripItemDesigner.cs
- ObjectStateManager.cs
- DbMetaDataFactory.cs
- FontDriver.cs
- DecoratedNameAttribute.cs
- Activity.cs
- XmlStringTable.cs
- MulticastDelegate.cs
- ProgressBarBrushConverter.cs
- HttpInputStream.cs
- dataprotectionpermission.cs
- PartitionResolver.cs
- TrustSection.cs
- RequiredFieldValidator.cs
- PointCollection.cs
- ProxyOperationRuntime.cs
- HttpCacheVaryByContentEncodings.cs
- TrackBar.cs
- DataSourceControl.cs
- PlanCompiler.cs
- SpellerInterop.cs
- ValuePatternIdentifiers.cs
- RangeContentEnumerator.cs
- util.cs
- TransactionFlowAttribute.cs
- OuterGlowBitmapEffect.cs
- LinqDataSourceUpdateEventArgs.cs
- EntityContainerRelationshipSetEnd.cs
- DbModificationCommandTree.cs
- TextInfo.cs
- DataGridItemEventArgs.cs
- XsdDuration.cs
- CheckBoxRenderer.cs
- ForeignKeyConstraint.cs
- StsCommunicationException.cs
- OdbcConnectionStringbuilder.cs
- FontFamilyValueSerializer.cs
- SqlFunctionAttribute.cs
- Environment.cs
- NotifyIcon.cs