Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / whidbey / QFE / ndp / fx / src / xsp / System / Web / UI / DataSourceCacheDurationConverter.cs / 2 / DataSourceCacheDurationConverter.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI { using System; using System.Collections; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Globalization; using System.Reflection; using System.Security.Permissions; using System.Web.Util; ////// Converts a cache duration such as an integer or the text "Infinite" to a cache duration, where "Infinite" implies zero (0). /// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class DataSourceCacheDurationConverter : Int32Converter { private StandardValuesCollection _values; public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) { if (sourceType == typeof(string)) { return true; } else { return base.CanConvertFrom(context, sourceType); } } public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) { if (value == null) return null; string stringValue = value as string; if (stringValue != null) { string textValue = stringValue.Trim(); if (textValue.Length == 0) { return 0; } if (String.Equals(textValue, "infinite", StringComparison.OrdinalIgnoreCase)) { return 0; } } return base.ConvertFrom(context, culture, value); } public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) { if (destinationType == typeof(string)) { return true; } else { return base.CanConvertTo(context, destinationType); } } public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if ((value != null) && (destinationType == typeof(string)) && ((int)value == 0)) { return "Infinite"; } else { return base.ConvertTo(context, culture, value, destinationType); } } public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context) { if (_values == null) { object[] values = new object[] { 0 }; _values = new StandardValuesCollection(values); } return _values; } public override bool GetStandardValuesExclusive(ITypeDescriptorContext context) { return false; } public override bool GetStandardValuesSupported(ITypeDescriptorContext context) { return true; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- RegexGroupCollection.cs
- TemplatePagerField.cs
- FontFaceLayoutInfo.cs
- Label.cs
- PermissionRequestEvidence.cs
- DateTimeOffsetConverter.cs
- CannotUnloadAppDomainException.cs
- ResourceReader.cs
- ElementHostPropertyMap.cs
- ConnectionProviderAttribute.cs
- BitmapCodecInfo.cs
- ServiceDescriptions.cs
- SizeIndependentAnimationStorage.cs
- Memoizer.cs
- ArraySegment.cs
- DataGridTextBox.cs
- HitTestWithGeometryDrawingContextWalker.cs
- ControlBuilder.cs
- AspProxy.cs
- DataGridViewLinkColumn.cs
- adornercollection.cs
- JsonWriterDelegator.cs
- TypeExtension.cs
- AuthenticationService.cs
- ButtonColumn.cs
- Monitor.cs
- SQLChars.cs
- PersonalizableAttribute.cs
- SoapHeaders.cs
- SuppressIldasmAttribute.cs
- ColorMap.cs
- XmlDocument.cs
- FormViewPagerRow.cs
- SqlServer2KCompatibilityAnnotation.cs
- BitArray.cs
- JoinGraph.cs
- FormViewInsertedEventArgs.cs
- OracleLob.cs
- ValueChangedEventManager.cs
- TypedReference.cs
- ColorTransform.cs
- SQLMoney.cs
- DbProviderFactory.cs
- DataListItemEventArgs.cs
- AppDomainFactory.cs
- TextFormatterImp.cs
- RSAPKCS1KeyExchangeDeformatter.cs
- AssemblyBuilderData.cs
- CodePrimitiveExpression.cs
- Application.cs
- RawTextInputReport.cs
- _ReceiveMessageOverlappedAsyncResult.cs
- HelpInfo.cs
- StatusStrip.cs
- ZipIOModeEnforcingStream.cs
- CodeTypeParameter.cs
- DependencyPropertyKind.cs
- DateTimeValueSerializer.cs
- GridViewHeaderRowPresenter.cs
- CodeIdentifiers.cs
- MenuScrollingVisibilityConverter.cs
- CancellationHandler.cs
- FacetEnabledSchemaElement.cs
- PeerToPeerException.cs
- CachingHintValidation.cs
- ExpressionConverter.cs
- COM2ColorConverter.cs
- CatalogUtil.cs
- DESCryptoServiceProvider.cs
- WorkflowLayouts.cs
- InkCollectionBehavior.cs
- CompilerParameters.cs
- ContainerAction.cs
- AutoGeneratedField.cs
- ProxyGenerator.cs
- UntrustedRecipientException.cs
- SqlParameterCollection.cs
- SafeCertificateStore.cs
- ExpressionBuilder.cs
- TextProperties.cs
- StringExpressionSet.cs
- HtmlInputReset.cs
- ConditionalAttribute.cs
- Main.cs
- FileIOPermission.cs
- PointHitTestParameters.cs
- HttpVersion.cs
- RequestResizeEvent.cs
- DetailsViewPagerRow.cs
- XmlNullResolver.cs
- HijriCalendar.cs
- ElapsedEventArgs.cs
- InputReferenceExpression.cs
- SymbolType.cs
- EntityWithKeyStrategy.cs
- SerialReceived.cs
- XsltLoader.cs
- Stroke.cs
- ScrollItemProviderWrapper.cs
- GuidTagList.cs