Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / Compilation / ExpressionBuilder.cs / 1305376 / ExpressionBuilder.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.Compilation { using System; using System.CodeDom; using System.Collections; using System.Collections.Specialized; using System.ComponentModel.Design; using System.Web.Configuration; using System.Reflection; using System.Web; using System.Web.Hosting; #if !FEATURE_PAL using System.Web.UI.Design; #endif // !FEATURE_PAL using System.Web.UI; using System.Web.Util; public abstract class ExpressionBuilder { private static ExpressionBuilder dataBindingExpressionBuilder; internal virtual void BuildExpression(BoundPropertyEntry bpe, ControlBuilder controlBuilder, CodeExpression controlReference, CodeStatementCollection methodStatements, CodeStatementCollection statements, CodeLinePragma linePragma, ref bool hasTempObject) { CodeExpression codeExpression = GetCodeExpression(bpe, bpe.ParsedExpressionData, new ExpressionBuilderContext(controlBuilder.VirtualPath)); CodeDomUtility.CreatePropertySetStatements(methodStatements, statements, controlReference, bpe.Name, bpe.Type, codeExpression, linePragma); } internal static ExpressionBuilder GetExpressionBuilder(string expressionPrefix, VirtualPath virtualPath) { return GetExpressionBuilder(expressionPrefix, virtualPath, null); } internal static ExpressionBuilder GetExpressionBuilder(string expressionPrefix, VirtualPath virtualPath, IDesignerHost host) { // If there is no expressionPrefix, it's a v1 style databinding expression if (expressionPrefix.Length == 0) { if (dataBindingExpressionBuilder == null) { dataBindingExpressionBuilder = new DataBindingExpressionBuilder(); } return dataBindingExpressionBuilder; } CompilationSection config = null; // If we are in the designer, we need to access IWebApplication config instead #if !FEATURE_PAL // FEATURE_PAL does not support designer-based features if (host != null) { IWebApplication webapp = (IWebApplication)host.GetService(typeof(IWebApplication)); if (webapp != null) { config = webapp.OpenWebConfiguration(true).GetSection("system.web/compilation") as CompilationSection; } } #endif // !FEATURE_PAL // If we failed to get config from the designer, fall back on runtime config always if (config == null) { config = MTConfigUtil.GetCompilationConfig(virtualPath); } System.Web.Configuration.ExpressionBuilder builder = config.ExpressionBuilders[expressionPrefix]; if (builder == null) { throw new HttpParseException(SR.GetString(SR.InvalidExpressionPrefix, expressionPrefix)); } Type expressionBuilderType = null; if (host != null) { // If we are in the designer, we have to use the type resolution service ITypeResolutionService ts = (ITypeResolutionService)host.GetService(typeof(ITypeResolutionService)); if (ts != null) { expressionBuilderType = ts.GetType(builder.Type); } } if (expressionBuilderType == null) { expressionBuilderType = builder.TypeInternal; } Debug.Assert(expressionBuilderType != null, "expressionBuilderType should not be null"); if (!typeof(ExpressionBuilder).IsAssignableFrom(expressionBuilderType)) { throw new HttpParseException(SR.GetString(SR.ExpressionBuilder_InvalidType, expressionBuilderType.FullName)); } ExpressionBuilder expressionBuilder = (ExpressionBuilder)HttpRuntime.FastCreatePublicInstance(expressionBuilderType); return expressionBuilder; } // // Public API // public virtual bool SupportsEvaluate { get { return false; } } public virtual object ParseExpression(string expression, Type propertyType, ExpressionBuilderContext context) { return null; } public abstract CodeExpression GetCodeExpression(BoundPropertyEntry entry, object parsedData, ExpressionBuilderContext context); public virtual object EvaluateExpression(object target, BoundPropertyEntry entry, object parsedData, ExpressionBuilderContext context) { return null; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.Compilation { using System; using System.CodeDom; using System.Collections; using System.Collections.Specialized; using System.ComponentModel.Design; using System.Web.Configuration; using System.Reflection; using System.Web; using System.Web.Hosting; #if !FEATURE_PAL using System.Web.UI.Design; #endif // !FEATURE_PAL using System.Web.UI; using System.Web.Util; public abstract class ExpressionBuilder { private static ExpressionBuilder dataBindingExpressionBuilder; internal virtual void BuildExpression(BoundPropertyEntry bpe, ControlBuilder controlBuilder, CodeExpression controlReference, CodeStatementCollection methodStatements, CodeStatementCollection statements, CodeLinePragma linePragma, ref bool hasTempObject) { CodeExpression codeExpression = GetCodeExpression(bpe, bpe.ParsedExpressionData, new ExpressionBuilderContext(controlBuilder.VirtualPath)); CodeDomUtility.CreatePropertySetStatements(methodStatements, statements, controlReference, bpe.Name, bpe.Type, codeExpression, linePragma); } internal static ExpressionBuilder GetExpressionBuilder(string expressionPrefix, VirtualPath virtualPath) { return GetExpressionBuilder(expressionPrefix, virtualPath, null); } internal static ExpressionBuilder GetExpressionBuilder(string expressionPrefix, VirtualPath virtualPath, IDesignerHost host) { // If there is no expressionPrefix, it's a v1 style databinding expression if (expressionPrefix.Length == 0) { if (dataBindingExpressionBuilder == null) { dataBindingExpressionBuilder = new DataBindingExpressionBuilder(); } return dataBindingExpressionBuilder; } CompilationSection config = null; // If we are in the designer, we need to access IWebApplication config instead #if !FEATURE_PAL // FEATURE_PAL does not support designer-based features if (host != null) { IWebApplication webapp = (IWebApplication)host.GetService(typeof(IWebApplication)); if (webapp != null) { config = webapp.OpenWebConfiguration(true).GetSection("system.web/compilation") as CompilationSection; } } #endif // !FEATURE_PAL // If we failed to get config from the designer, fall back on runtime config always if (config == null) { config = MTConfigUtil.GetCompilationConfig(virtualPath); } System.Web.Configuration.ExpressionBuilder builder = config.ExpressionBuilders[expressionPrefix]; if (builder == null) { throw new HttpParseException(SR.GetString(SR.InvalidExpressionPrefix, expressionPrefix)); } Type expressionBuilderType = null; if (host != null) { // If we are in the designer, we have to use the type resolution service ITypeResolutionService ts = (ITypeResolutionService)host.GetService(typeof(ITypeResolutionService)); if (ts != null) { expressionBuilderType = ts.GetType(builder.Type); } } if (expressionBuilderType == null) { expressionBuilderType = builder.TypeInternal; } Debug.Assert(expressionBuilderType != null, "expressionBuilderType should not be null"); if (!typeof(ExpressionBuilder).IsAssignableFrom(expressionBuilderType)) { throw new HttpParseException(SR.GetString(SR.ExpressionBuilder_InvalidType, expressionBuilderType.FullName)); } ExpressionBuilder expressionBuilder = (ExpressionBuilder)HttpRuntime.FastCreatePublicInstance(expressionBuilderType); return expressionBuilder; } // // Public API // public virtual bool SupportsEvaluate { get { return false; } } public virtual object ParseExpression(string expression, Type propertyType, ExpressionBuilderContext context) { return null; } public abstract CodeExpression GetCodeExpression(BoundPropertyEntry entry, object parsedData, ExpressionBuilderContext context); public virtual object EvaluateExpression(object target, BoundPropertyEntry entry, object parsedData, ExpressionBuilderContext context) { return null; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- BezierSegment.cs
- ResolveResponseInfo.cs
- BaseTemplateCodeDomTreeGenerator.cs
- NotifyIcon.cs
- DataGridViewCellEventArgs.cs
- InkPresenterAutomationPeer.cs
- ComAdminInterfaces.cs
- QilXmlReader.cs
- WebPartUtil.cs
- TextWriterTraceListener.cs
- TdsValueSetter.cs
- MdiWindowListItemConverter.cs
- TypeDescriptionProvider.cs
- Geometry3D.cs
- EntityDataSourceChangedEventArgs.cs
- SpoolingTask.cs
- OracleParameterBinding.cs
- DataGridViewHeaderCell.cs
- EntityModelSchemaGenerator.cs
- PinnedBufferMemoryStream.cs
- RectConverter.cs
- ProgressBarHighlightConverter.cs
- ToolStripSeparator.cs
- XmlComment.cs
- ContainerFilterService.cs
- MinMaxParagraphWidth.cs
- EmptyEnumerator.cs
- Decimal.cs
- GcSettings.cs
- GreenMethods.cs
- Size3DValueSerializer.cs
- RoutedEventHandlerInfo.cs
- XamlToRtfWriter.cs
- DesignerDataRelationship.cs
- FontSourceCollection.cs
- SiteMapNodeItemEventArgs.cs
- RequestTimeoutManager.cs
- ActivityXRefPropertyEditor.cs
- EventBindingService.cs
- UpnEndpointIdentityExtension.cs
- _PooledStream.cs
- ImageSourceValueSerializer.cs
- DynamicMetaObjectBinder.cs
- Panel.cs
- CrossAppDomainChannel.cs
- PolicyLevel.cs
- ProvidePropertyAttribute.cs
- CodeIdentifier.cs
- DBConcurrencyException.cs
- PathNode.cs
- Tracking.cs
- ExecutedRoutedEventArgs.cs
- PackageDigitalSignature.cs
- EncoderParameter.cs
- StructuredType.cs
- SubpageParagraph.cs
- SamlEvidence.cs
- UIAgentAsyncEndRequest.cs
- HttpStreamXmlDictionaryReader.cs
- ReliabilityContractAttribute.cs
- AnnotationHelper.cs
- KeyFrames.cs
- QueryCursorEventArgs.cs
- BlockUIContainer.cs
- StringConverter.cs
- PingOptions.cs
- SchemaComplexType.cs
- BaseDataBoundControl.cs
- WebProxyScriptElement.cs
- ImageSource.cs
- EncryptedPackage.cs
- ReachDocumentPageSerializer.cs
- ZipFileInfoCollection.cs
- ProgressBarAutomationPeer.cs
- Form.cs
- ProfileSettings.cs
- PerformanceCounterManager.cs
- URL.cs
- ToolStripTextBox.cs
- ConnectionStringSettingsCollection.cs
- SourceExpressionException.cs
- RtfToken.cs
- PlanCompilerUtil.cs
- WebScriptServiceHostFactory.cs
- RijndaelManagedTransform.cs
- SessionPageStateSection.cs
- HttpSessionStateWrapper.cs
- XmlSerializerAssemblyAttribute.cs
- TypeCodeDomSerializer.cs
- BlockUIContainer.cs
- UmAlQuraCalendar.cs
- QilStrConcat.cs
- MsmqChannelListenerBase.cs
- AnimationTimeline.cs
- BinaryNegotiation.cs
- DesignerFrame.cs
- RemoteCryptoRsaServiceProvider.cs
- BatchWriter.cs
- MenuItemCollection.cs
- ellipse.cs