Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / xsp / System / Web / Compilation / DataBindingExpressionBuilder.cs / 1 / DataBindingExpressionBuilder.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.Compilation { using System; using System.Security.Permissions; using System.CodeDom; using System.Diagnostics; using System.Reflection; using System.Web.UI; internal class DataBindingExpressionBuilder : ExpressionBuilder { private static EventInfo eventInfo; private const string EvalMethodName = "Eval"; private const string GetDataItemMethodName = "GetDataItem"; internal static EventInfo Event { get { if (eventInfo == null) { eventInfo = typeof(Control).GetEvent("DataBinding"); } return eventInfo; } } internal static void BuildEvalExpression(string field, string formatString, string propertyName, Type propertyType, ControlBuilder controlBuilder, CodeStatementCollection methodStatements, CodeStatementCollection statements, CodeLinePragma linePragma, ref bool hasTempObject) { // Altogether, this function will create a statement that looks like this: // if (this.Page.GetDataItem() != null) { // target.{{propName}} = ({{propType}}) this.Eval(fieldName, formatString); // } // this.Eval(fieldName, formatString) CodeMethodInvokeExpression evalExpr = new CodeMethodInvokeExpression(); evalExpr.Method.TargetObject = new CodeThisReferenceExpression(); evalExpr.Method.MethodName = EvalMethodName; evalExpr.Parameters.Add(new CodePrimitiveExpression(field)); if (!String.IsNullOrEmpty(formatString)) { evalExpr.Parameters.Add(new CodePrimitiveExpression(formatString)); } CodeStatementCollection evalStatements = new CodeStatementCollection(); BuildPropertySetExpression(evalExpr, propertyName, propertyType, controlBuilder, methodStatements, evalStatements, linePragma, ref hasTempObject); // if (this.Page.GetDataItem() != null) CodeMethodInvokeExpression getDataItemExpr = new CodeMethodInvokeExpression(); getDataItemExpr.Method.TargetObject = new CodePropertyReferenceExpression(new CodeThisReferenceExpression(), "Page"); getDataItemExpr.Method.MethodName = GetDataItemMethodName; CodeConditionStatement ifStmt = new CodeConditionStatement(); ifStmt.Condition = new CodeBinaryOperatorExpression(getDataItemExpr, CodeBinaryOperatorType.IdentityInequality, new CodePrimitiveExpression(null)); ifStmt.TrueStatements.AddRange(evalStatements); statements.Add(ifStmt); } private static void BuildPropertySetExpression(CodeExpression expression, string propertyName, Type propertyType, ControlBuilder controlBuilder, CodeStatementCollection methodStatements, CodeStatementCollection statements, CodeLinePragma linePragma, ref bool hasTempObject) { CodeDomUtility.CreatePropertySetStatements(methodStatements, statements, new CodeVariableReferenceExpression("dataBindingExpressionBuilderTarget"), propertyName, propertyType, expression, linePragma); } internal static void BuildExpressionSetup(ControlBuilder controlBuilder, CodeStatementCollection methodStatements, CodeStatementCollection statements) { // {{controlType}} target; CodeVariableDeclarationStatement targetDecl = new CodeVariableDeclarationStatement(controlBuilder.ControlType, "dataBindingExpressionBuilderTarget"); methodStatements.Add(targetDecl); CodeVariableReferenceExpression targetExp = new CodeVariableReferenceExpression(targetDecl.Name); // target = ({{controlType}}) sender; CodeAssignStatement setTarget = new CodeAssignStatement(targetExp, new CodeCastExpression(controlBuilder.ControlType, new CodeArgumentReferenceExpression("sender"))); statements.Add(setTarget); Type bindingContainerType = controlBuilder.BindingContainerType; CodeVariableDeclarationStatement containerDecl = new CodeVariableDeclarationStatement(bindingContainerType, "Container"); methodStatements.Add(containerDecl); // {{containerType}} Container = ({{containerType}}) target.BindingContainer; CodeAssignStatement setContainer = new CodeAssignStatement(new CodeVariableReferenceExpression(containerDecl.Name), new CodeCastExpression(bindingContainerType, new CodePropertyReferenceExpression(targetExp, "BindingContainer"))); statements.Add(setContainer); } internal override void BuildExpression(BoundPropertyEntry bpe, ControlBuilder controlBuilder, CodeExpression controlReference, CodeStatementCollection methodStatements, CodeStatementCollection statements, CodeLinePragma linePragma, ref bool hasTempObject) { BuildExpressionStatic(bpe, controlBuilder, controlReference, methodStatements, statements, linePragma, ref hasTempObject); } internal static void BuildExpressionStatic(BoundPropertyEntry bpe, ControlBuilder controlBuilder, CodeExpression controlReference, CodeStatementCollection methodStatements, CodeStatementCollection statements, CodeLinePragma linePragma, ref bool hasTempObject) { CodeExpression expr = new CodeSnippetExpression(bpe.Expression); BuildPropertySetExpression(expr, bpe.Name, bpe.Type, controlBuilder, methodStatements, statements, linePragma, ref hasTempObject); } public override CodeExpression GetCodeExpression(BoundPropertyEntry entry, object parsedData, ExpressionBuilderContext context) { Debug.Fail("This should never be called"); 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.Security.Permissions; using System.CodeDom; using System.Diagnostics; using System.Reflection; using System.Web.UI; internal class DataBindingExpressionBuilder : ExpressionBuilder { private static EventInfo eventInfo; private const string EvalMethodName = "Eval"; private const string GetDataItemMethodName = "GetDataItem"; internal static EventInfo Event { get { if (eventInfo == null) { eventInfo = typeof(Control).GetEvent("DataBinding"); } return eventInfo; } } internal static void BuildEvalExpression(string field, string formatString, string propertyName, Type propertyType, ControlBuilder controlBuilder, CodeStatementCollection methodStatements, CodeStatementCollection statements, CodeLinePragma linePragma, ref bool hasTempObject) { // Altogether, this function will create a statement that looks like this: // if (this.Page.GetDataItem() != null) { // target.{{propName}} = ({{propType}}) this.Eval(fieldName, formatString); // } // this.Eval(fieldName, formatString) CodeMethodInvokeExpression evalExpr = new CodeMethodInvokeExpression(); evalExpr.Method.TargetObject = new CodeThisReferenceExpression(); evalExpr.Method.MethodName = EvalMethodName; evalExpr.Parameters.Add(new CodePrimitiveExpression(field)); if (!String.IsNullOrEmpty(formatString)) { evalExpr.Parameters.Add(new CodePrimitiveExpression(formatString)); } CodeStatementCollection evalStatements = new CodeStatementCollection(); BuildPropertySetExpression(evalExpr, propertyName, propertyType, controlBuilder, methodStatements, evalStatements, linePragma, ref hasTempObject); // if (this.Page.GetDataItem() != null) CodeMethodInvokeExpression getDataItemExpr = new CodeMethodInvokeExpression(); getDataItemExpr.Method.TargetObject = new CodePropertyReferenceExpression(new CodeThisReferenceExpression(), "Page"); getDataItemExpr.Method.MethodName = GetDataItemMethodName; CodeConditionStatement ifStmt = new CodeConditionStatement(); ifStmt.Condition = new CodeBinaryOperatorExpression(getDataItemExpr, CodeBinaryOperatorType.IdentityInequality, new CodePrimitiveExpression(null)); ifStmt.TrueStatements.AddRange(evalStatements); statements.Add(ifStmt); } private static void BuildPropertySetExpression(CodeExpression expression, string propertyName, Type propertyType, ControlBuilder controlBuilder, CodeStatementCollection methodStatements, CodeStatementCollection statements, CodeLinePragma linePragma, ref bool hasTempObject) { CodeDomUtility.CreatePropertySetStatements(methodStatements, statements, new CodeVariableReferenceExpression("dataBindingExpressionBuilderTarget"), propertyName, propertyType, expression, linePragma); } internal static void BuildExpressionSetup(ControlBuilder controlBuilder, CodeStatementCollection methodStatements, CodeStatementCollection statements) { // {{controlType}} target; CodeVariableDeclarationStatement targetDecl = new CodeVariableDeclarationStatement(controlBuilder.ControlType, "dataBindingExpressionBuilderTarget"); methodStatements.Add(targetDecl); CodeVariableReferenceExpression targetExp = new CodeVariableReferenceExpression(targetDecl.Name); // target = ({{controlType}}) sender; CodeAssignStatement setTarget = new CodeAssignStatement(targetExp, new CodeCastExpression(controlBuilder.ControlType, new CodeArgumentReferenceExpression("sender"))); statements.Add(setTarget); Type bindingContainerType = controlBuilder.BindingContainerType; CodeVariableDeclarationStatement containerDecl = new CodeVariableDeclarationStatement(bindingContainerType, "Container"); methodStatements.Add(containerDecl); // {{containerType}} Container = ({{containerType}}) target.BindingContainer; CodeAssignStatement setContainer = new CodeAssignStatement(new CodeVariableReferenceExpression(containerDecl.Name), new CodeCastExpression(bindingContainerType, new CodePropertyReferenceExpression(targetExp, "BindingContainer"))); statements.Add(setContainer); } internal override void BuildExpression(BoundPropertyEntry bpe, ControlBuilder controlBuilder, CodeExpression controlReference, CodeStatementCollection methodStatements, CodeStatementCollection statements, CodeLinePragma linePragma, ref bool hasTempObject) { BuildExpressionStatic(bpe, controlBuilder, controlReference, methodStatements, statements, linePragma, ref hasTempObject); } internal static void BuildExpressionStatic(BoundPropertyEntry bpe, ControlBuilder controlBuilder, CodeExpression controlReference, CodeStatementCollection methodStatements, CodeStatementCollection statements, CodeLinePragma linePragma, ref bool hasTempObject) { CodeExpression expr = new CodeSnippetExpression(bpe.Expression); BuildPropertySetExpression(expr, bpe.Name, bpe.Type, controlBuilder, methodStatements, statements, linePragma, ref hasTempObject); } public override CodeExpression GetCodeExpression(BoundPropertyEntry entry, object parsedData, ExpressionBuilderContext context) { Debug.Fail("This should never be called"); 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
- Utilities.cs
- CmsInterop.cs
- GcHandle.cs
- AttachedPropertyDescriptor.cs
- ReplacementText.cs
- DispatcherBuilder.cs
- RemotingConfiguration.cs
- TileModeValidation.cs
- Run.cs
- CommentEmitter.cs
- SqlCaseSimplifier.cs
- SqlDataSourceEnumerator.cs
- ServiceBusyException.cs
- MaskedTextProvider.cs
- CatalogZone.cs
- SubpageParaClient.cs
- BitmapCache.cs
- SystemColors.cs
- Automation.cs
- DateTimeConstantAttribute.cs
- OpenTypeMethods.cs
- PbrsForward.cs
- RowUpdatingEventArgs.cs
- StringExpressionSet.cs
- HttpContextWrapper.cs
- ProcessProtocolHandler.cs
- ToolStripDropDownDesigner.cs
- ListViewSelectEventArgs.cs
- SeverityFilter.cs
- RowType.cs
- ControlBuilder.cs
- HttpPostedFileBase.cs
- Misc.cs
- Internal.cs
- Registry.cs
- LineServices.cs
- AppSettingsExpressionBuilder.cs
- GridView.cs
- QilGeneratorEnv.cs
- base64Transforms.cs
- QuadTree.cs
- BaseValidator.cs
- GridViewColumnCollectionChangedEventArgs.cs
- SqlDataSourceSelectingEventArgs.cs
- DESCryptoServiceProvider.cs
- MenuItemBinding.cs
- PropertyConverter.cs
- ResourceContainer.cs
- PerSessionInstanceContextProvider.cs
- UrlEncodedParameterWriter.cs
- SecurityHelper.cs
- ConfigurationSectionGroupCollection.cs
- AttributeXamlType.cs
- FollowerQueueCreator.cs
- IgnoreDeviceFilterElement.cs
- Misc.cs
- uribuilder.cs
- cryptoapiTransform.cs
- AttachInfo.cs
- Empty.cs
- ScrollProperties.cs
- InvokeMethodActivityDesigner.cs
- VScrollBar.cs
- WindowsListViewGroup.cs
- StylesEditorDialog.cs
- ReachObjectContext.cs
- LoadWorkflowByInstanceKeyCommand.cs
- SimpleHandlerFactory.cs
- BoundConstants.cs
- ControlCachePolicy.cs
- StylusShape.cs
- messageonlyhwndwrapper.cs
- PackageFilter.cs
- TreeView.cs
- Timer.cs
- TagPrefixCollection.cs
- ObjectDataSource.cs
- Shape.cs
- EntitySet.cs
- SqlConnectionHelper.cs
- RectangleHotSpot.cs
- SymbolType.cs
- ElementHostAutomationPeer.cs
- SimpleExpression.cs
- XmlSerializableReader.cs
- UnsafeNativeMethods.cs
- UpWmlMobileTextWriter.cs
- ConfigurationManager.cs
- MappingMetadataHelper.cs
- WebZone.cs
- View.cs
- Keyboard.cs
- WhereQueryOperator.cs
- CngUIPolicy.cs
- CurrentChangingEventManager.cs
- Int32Animation.cs
- XmlChildEnumerator.cs
- UrlMappingsSection.cs
- CompensatableTransactionScopeActivity.cs
- XXXOnTypeBuilderInstantiation.cs