Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Core / CSharp / System / Windows / Media / RequestCachePolicyConverter.cs / 1 / RequestCachePolicyConverter.cs
//------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation, 2007 // // File: RequesetCachePolicyConverter.cs //----------------------------------------------------------------------------- using System; using System.IO; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Reflection; using MS.Internal; using System.Windows.Media; using System.Text; using System.Collections; using System.Globalization; using System.Runtime.InteropServices; using System.Security; using System.Net.Cache; using SR=MS.Internal.PresentationCore.SR; using SRID=MS.Internal.PresentationCore.SRID; namespace System.Windows.Media { ////// RequestCachePolicyConverter Parses a RequestCachePolicy. /// public sealed class RequestCachePolicyConverter : TypeConverter { ////// CanConvertFrom /// public override bool CanConvertFrom(ITypeDescriptorContext td, Type t) { if (t == typeof(string)) { return true; } else { return false; } } ////// CanConvertTo - Returns whether or not this class can convert to a given type. /// ////// bool - True if this converter can convert to the provided type, false if not. /// /// The ITypeDescriptorContext for this call. /// The Type being queried for support. public override bool CanConvertTo(ITypeDescriptorContext typeDescriptorContext, Type destinationType) { // We can convert to an InstanceDescriptor or to a string. if (destinationType == typeof(InstanceDescriptor) || destinationType == typeof(string)) { return true; } else { return false; } } ////// ConvertFrom - attempt to convert to a RequestCachePolicy from the given object /// ////// A NotSupportedException is thrown if the example object is null or is not a valid type /// which can be converted to a RequestCachePolicy. /// public override object ConvertFrom(ITypeDescriptorContext td, System.Globalization.CultureInfo ci, object value) { if (null == value) { throw GetConvertFromException(value); } string s = value as string; if (null == s) { throw new ArgumentException(SR.Get(SRID.General_BadType, "ConvertFrom"), "value"); } HttpRequestCacheLevel level = (HttpRequestCacheLevel)Enum.Parse(typeof(HttpRequestCacheLevel), s, true); return new HttpRequestCachePolicy(level); } ////// ConvertTo - Attempt to convert to the given type /// ////// The object which was constructed. /// ////// An ArgumentNullException is thrown if the example object is null. /// ////// An ArgumentException is thrown if the object is not null, /// or if the destinationType isn't one of the valid destination types. /// /// The ITypeDescriptorContext for this call. /// The CultureInfo which is respected when converting. /// The policy to convert. /// The type to which to convert the policy. ////// Critical: calls InstanceDescriptor ctor which LinkDemands /// PublicOK: can only make an InstanceDescriptor for RequestCachePolicy/HttpRequestCachePolicy, not an arbitrary class /// [SecurityCritical] public override object ConvertTo(ITypeDescriptorContext typeDescriptorContext, CultureInfo cultureInfo, object value, Type destinationType) { if (destinationType == null) { throw new ArgumentNullException("destinationType"); } HttpRequestCachePolicy httpPolicy = value as HttpRequestCachePolicy; if(httpPolicy != null) { if (destinationType == typeof(string)) { return httpPolicy.Level.ToString(); } else if (destinationType == typeof(InstanceDescriptor)) { ConstructorInfo ci = typeof(HttpRequestCachePolicy).GetConstructor(new Type[] { typeof(HttpRequestCachePolicy) }); return new InstanceDescriptor(ci, new object[] { httpPolicy.Level }); } } //if it's not an HttpRequestCachePolicy, try a regular RequestCachePolicy RequestCachePolicy policy = value as RequestCachePolicy; if (policy != null) { if (destinationType == typeof(string)) { return policy.Level.ToString(); } else if (destinationType == typeof(InstanceDescriptor)) { ConstructorInfo ci = typeof(RequestCachePolicy).GetConstructor(new Type[] { typeof(RequestCachePolicy) }); return new InstanceDescriptor(ci, new object[] { policy.Level }); } } throw GetConvertToException(value, destinationType); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation, 2007 // // File: RequesetCachePolicyConverter.cs //----------------------------------------------------------------------------- using System; using System.IO; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Reflection; using MS.Internal; using System.Windows.Media; using System.Text; using System.Collections; using System.Globalization; using System.Runtime.InteropServices; using System.Security; using System.Net.Cache; using SR=MS.Internal.PresentationCore.SR; using SRID=MS.Internal.PresentationCore.SRID; namespace System.Windows.Media { ////// RequestCachePolicyConverter Parses a RequestCachePolicy. /// public sealed class RequestCachePolicyConverter : TypeConverter { ////// CanConvertFrom /// public override bool CanConvertFrom(ITypeDescriptorContext td, Type t) { if (t == typeof(string)) { return true; } else { return false; } } ////// CanConvertTo - Returns whether or not this class can convert to a given type. /// ////// bool - True if this converter can convert to the provided type, false if not. /// /// The ITypeDescriptorContext for this call. /// The Type being queried for support. public override bool CanConvertTo(ITypeDescriptorContext typeDescriptorContext, Type destinationType) { // We can convert to an InstanceDescriptor or to a string. if (destinationType == typeof(InstanceDescriptor) || destinationType == typeof(string)) { return true; } else { return false; } } ////// ConvertFrom - attempt to convert to a RequestCachePolicy from the given object /// ////// A NotSupportedException is thrown if the example object is null or is not a valid type /// which can be converted to a RequestCachePolicy. /// public override object ConvertFrom(ITypeDescriptorContext td, System.Globalization.CultureInfo ci, object value) { if (null == value) { throw GetConvertFromException(value); } string s = value as string; if (null == s) { throw new ArgumentException(SR.Get(SRID.General_BadType, "ConvertFrom"), "value"); } HttpRequestCacheLevel level = (HttpRequestCacheLevel)Enum.Parse(typeof(HttpRequestCacheLevel), s, true); return new HttpRequestCachePolicy(level); } ////// ConvertTo - Attempt to convert to the given type /// ////// The object which was constructed. /// ////// An ArgumentNullException is thrown if the example object is null. /// ////// An ArgumentException is thrown if the object is not null, /// or if the destinationType isn't one of the valid destination types. /// /// The ITypeDescriptorContext for this call. /// The CultureInfo which is respected when converting. /// The policy to convert. /// The type to which to convert the policy. ////// Critical: calls InstanceDescriptor ctor which LinkDemands /// PublicOK: can only make an InstanceDescriptor for RequestCachePolicy/HttpRequestCachePolicy, not an arbitrary class /// [SecurityCritical] public override object ConvertTo(ITypeDescriptorContext typeDescriptorContext, CultureInfo cultureInfo, object value, Type destinationType) { if (destinationType == null) { throw new ArgumentNullException("destinationType"); } HttpRequestCachePolicy httpPolicy = value as HttpRequestCachePolicy; if(httpPolicy != null) { if (destinationType == typeof(string)) { return httpPolicy.Level.ToString(); } else if (destinationType == typeof(InstanceDescriptor)) { ConstructorInfo ci = typeof(HttpRequestCachePolicy).GetConstructor(new Type[] { typeof(HttpRequestCachePolicy) }); return new InstanceDescriptor(ci, new object[] { httpPolicy.Level }); } } //if it's not an HttpRequestCachePolicy, try a regular RequestCachePolicy RequestCachePolicy policy = value as RequestCachePolicy; if (policy != null) { if (destinationType == typeof(string)) { return policy.Level.ToString(); } else if (destinationType == typeof(InstanceDescriptor)) { ConstructorInfo ci = typeof(RequestCachePolicy).GetConstructor(new Type[] { typeof(RequestCachePolicy) }); return new InstanceDescriptor(ci, new object[] { policy.Level }); } } throw GetConvertToException(value, destinationType); } } } // 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
- ProcessDesigner.cs
- PersonalizationDictionary.cs
- SelectionList.cs
- AssemblyNameProxy.cs
- Completion.cs
- TablePattern.cs
- BuildProviderInstallComponent.cs
- ScriptingRoleServiceSection.cs
- RayHitTestParameters.cs
- ErrorView.xaml.cs
- ProcessManager.cs
- MailAddressCollection.cs
- TreeNodeBinding.cs
- GeneralTransform3DTo2DTo3D.cs
- CodeTypeMember.cs
- InputLanguageSource.cs
- ServiceHandle.cs
- EncryptedData.cs
- CompositeDispatchFormatter.cs
- WindowsClientCredential.cs
- LinkLabel.cs
- PathStreamGeometryContext.cs
- columnmapfactory.cs
- FontFamilyValueSerializer.cs
- StringReader.cs
- TimeSpanMinutesOrInfiniteConverter.cs
- Model3DGroup.cs
- RemoteAsymmetricSignatureFormatter.cs
- ScriptResourceAttribute.cs
- MtomMessageEncodingElement.cs
- SynchronizationContext.cs
- ActivityWithResult.cs
- AppDomainAttributes.cs
- XmlDeclaration.cs
- BitmapEffect.cs
- LowerCaseStringConverter.cs
- InfoCardSymmetricCrypto.cs
- DateTimeConverter.cs
- QualificationDataItem.cs
- DataErrorValidationRule.cs
- DateTimeStorage.cs
- printdlgexmarshaler.cs
- DataGridViewTextBoxCell.cs
- CriticalFinalizerObject.cs
- ImageListDesigner.cs
- WebPartTransformerAttribute.cs
- ImageFormatConverter.cs
- KeyManager.cs
- BigIntegerStorage.cs
- TextProviderWrapper.cs
- ProviderConnectionPoint.cs
- JulianCalendar.cs
- PersonalizationProviderCollection.cs
- ViewStateChangedEventArgs.cs
- BindingRestrictions.cs
- PersonalizablePropertyEntry.cs
- DataGridClipboardCellContent.cs
- ExpressionVisitorHelpers.cs
- NegatedCellConstant.cs
- ObjectDataSourceSelectingEventArgs.cs
- columnmapkeybuilder.cs
- MsmqPoisonMessageException.cs
- ContentValidator.cs
- XmlSignatureProperties.cs
- QualifiedCellIdBoolean.cs
- EqualityComparer.cs
- PixelFormats.cs
- TransactionFlowElement.cs
- SerializationInfoEnumerator.cs
- _Rfc2616CacheValidators.cs
- EventPropertyMap.cs
- OracleCommand.cs
- MouseOverProperty.cs
- TextBox.cs
- ReferencedType.cs
- AddInControllerImpl.cs
- ObjectIDGenerator.cs
- Literal.cs
- EqualityComparer.cs
- ProcessExitedException.cs
- TrustLevel.cs
- OletxEnlistment.cs
- TextContainer.cs
- HttpCookiesSection.cs
- ConfigLoader.cs
- TypeSystem.cs
- SchemaTableColumn.cs
- AssociatedControlConverter.cs
- ContentOperations.cs
- ImageKeyConverter.cs
- DataGridViewCellEventArgs.cs
- DataGridCellClipboardEventArgs.cs
- XmlAnyElementAttributes.cs
- WebContext.cs
- CollectionDataContractAttribute.cs
- WeakReferenceList.cs
- Interop.cs
- EmptyEnumerable.cs
- GroupBoxAutomationPeer.cs
- CodeParameterDeclarationExpressionCollection.cs