Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / fx / src / xsp / System / Web / UI / XPathBinder.cs / 1 / XPathBinder.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI { using System; using System.Globalization; using System.Collections; using System.ComponentModel; using System.ComponentModel.Design; using System.Data; using System.Security.Permissions; using System.Xml; using System.Xml.XPath; ////// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class XPathBinder { ///private XPathBinder() { } /// /// public static object Eval(object container, string xPath) { IXmlNamespaceResolver resolver = null; return Eval(container, xPath, resolver); } public static object Eval(object container, string xPath, IXmlNamespaceResolver resolver) { if (container == null) { throw new ArgumentNullException("container"); } if (String.IsNullOrEmpty(xPath)) { throw new ArgumentNullException("xPath"); } IXPathNavigable node = container as IXPathNavigable; if (node == null) { throw new ArgumentException(SR.GetString(SR.XPathBinder_MustBeIXPathNavigable, container.GetType().FullName)); } XPathNavigator navigator = node.CreateNavigator(); object retValue = navigator.Evaluate(xPath, resolver); // If we get back an XPathNodeIterator instead of a simple object, advance // the iterator to the first node and return the value. XPathNodeIterator iterator = retValue as XPathNodeIterator; if (iterator != null) { if (iterator.MoveNext()) { retValue = iterator.Current.Value; } else { retValue = null; } } return retValue; } ////// public static string Eval(object container, string xPath, string format) { return Eval(container, xPath, format, null); } public static string Eval(object container, string xPath, string format, IXmlNamespaceResolver resolver) { object value = XPathBinder.Eval(container, xPath, resolver); if (value == null) { return String.Empty; } else { if (String.IsNullOrEmpty(format)) { return value.ToString(); } else { return String.Format(format, value); } } } ////// Evaluates an XPath query with respect to a context IXPathNavigable object that returns a NodeSet. /// public static IEnumerable Select(object container, string xPath) { return Select(container, xPath, null); } public static IEnumerable Select(object container, string xPath, IXmlNamespaceResolver resolver) { if (container == null) { throw new ArgumentNullException("container"); } if (String.IsNullOrEmpty(xPath)) { throw new ArgumentNullException("xPath"); } ArrayList results = new ArrayList(); IXPathNavigable node = container as IXPathNavigable; if (node == null) { throw new ArgumentException(SR.GetString(SR.XPathBinder_MustBeIXPathNavigable, container.GetType().FullName)); } XPathNavigator navigator = node.CreateNavigator(); XPathNodeIterator iterator = navigator.Select(xPath, resolver); while (iterator.MoveNext()) { IHasXmlNode hasXmlNode = iterator.Current as IHasXmlNode; if (hasXmlNode == null) { throw new InvalidOperationException(SR.GetString(SR.XPathBinder_MustHaveXmlNodes)); } results.Add(hasXmlNode.GetNode()); } return results; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI { using System; using System.Globalization; using System.Collections; using System.ComponentModel; using System.ComponentModel.Design; using System.Data; using System.Security.Permissions; using System.Xml; using System.Xml.XPath; ////// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class XPathBinder { ///private XPathBinder() { } /// /// public static object Eval(object container, string xPath) { IXmlNamespaceResolver resolver = null; return Eval(container, xPath, resolver); } public static object Eval(object container, string xPath, IXmlNamespaceResolver resolver) { if (container == null) { throw new ArgumentNullException("container"); } if (String.IsNullOrEmpty(xPath)) { throw new ArgumentNullException("xPath"); } IXPathNavigable node = container as IXPathNavigable; if (node == null) { throw new ArgumentException(SR.GetString(SR.XPathBinder_MustBeIXPathNavigable, container.GetType().FullName)); } XPathNavigator navigator = node.CreateNavigator(); object retValue = navigator.Evaluate(xPath, resolver); // If we get back an XPathNodeIterator instead of a simple object, advance // the iterator to the first node and return the value. XPathNodeIterator iterator = retValue as XPathNodeIterator; if (iterator != null) { if (iterator.MoveNext()) { retValue = iterator.Current.Value; } else { retValue = null; } } return retValue; } ////// public static string Eval(object container, string xPath, string format) { return Eval(container, xPath, format, null); } public static string Eval(object container, string xPath, string format, IXmlNamespaceResolver resolver) { object value = XPathBinder.Eval(container, xPath, resolver); if (value == null) { return String.Empty; } else { if (String.IsNullOrEmpty(format)) { return value.ToString(); } else { return String.Format(format, value); } } } ////// Evaluates an XPath query with respect to a context IXPathNavigable object that returns a NodeSet. /// public static IEnumerable Select(object container, string xPath) { return Select(container, xPath, null); } public static IEnumerable Select(object container, string xPath, IXmlNamespaceResolver resolver) { if (container == null) { throw new ArgumentNullException("container"); } if (String.IsNullOrEmpty(xPath)) { throw new ArgumentNullException("xPath"); } ArrayList results = new ArrayList(); IXPathNavigable node = container as IXPathNavigable; if (node == null) { throw new ArgumentException(SR.GetString(SR.XPathBinder_MustBeIXPathNavigable, container.GetType().FullName)); } XPathNavigator navigator = node.CreateNavigator(); XPathNodeIterator iterator = navigator.Select(xPath, resolver); while (iterator.MoveNext()) { IHasXmlNode hasXmlNode = iterator.Current as IHasXmlNode; if (hasXmlNode == null) { throw new InvalidOperationException(SR.GetString(SR.XPathBinder_MustHaveXmlNodes)); } results.Add(hasXmlNode.GetNode()); } return results; } } } // 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
- ConnectionsZoneAutoFormat.cs
- ElementAction.cs
- TextFindEngine.cs
- NetWebProxyFinder.cs
- ProviderCollection.cs
- ControlType.cs
- ContractUtils.cs
- PerformanceCounterManager.cs
- TextSpan.cs
- OdbcConnectionPoolProviderInfo.cs
- dataprotectionpermissionattribute.cs
- XmlWriter.cs
- HtmlTableCell.cs
- WebPartActionVerb.cs
- ValueTable.cs
- BuildProviderAppliesToAttribute.cs
- DataGridViewDesigner.cs
- FindCompletedEventArgs.cs
- FormsAuthenticationCredentials.cs
- XPathNodeInfoAtom.cs
- HealthMonitoringSection.cs
- AudioLevelUpdatedEventArgs.cs
- SortedList.cs
- BaseTemplateCodeDomTreeGenerator.cs
- KerberosRequestorSecurityToken.cs
- QueryStringParameter.cs
- ImmutableClientRuntime.cs
- IDispatchConstantAttribute.cs
- ExceptionValidationRule.cs
- CapiNative.cs
- ZipIORawDataFileBlock.cs
- Model3DGroup.cs
- BufferedWebEventProvider.cs
- IntSumAggregationOperator.cs
- Quad.cs
- TargetControlTypeCache.cs
- MSHTMLHost.cs
- TreeNodeStyleCollection.cs
- formatter.cs
- OperationAbortedException.cs
- SrgsElementFactoryCompiler.cs
- EntityDataSourceSelectingEventArgs.cs
- FixedTextSelectionProcessor.cs
- ImmutableObjectAttribute.cs
- Constraint.cs
- SqlMultiplexer.cs
- ViewStateException.cs
- IdentitySection.cs
- PromptStyle.cs
- TryExpression.cs
- DNS.cs
- HttpStreams.cs
- WebScriptServiceHost.cs
- ListGeneralPage.cs
- CodeSubDirectory.cs
- WebBrowsableAttribute.cs
- AlphabeticalEnumConverter.cs
- WebControlsSection.cs
- DeviceSpecificChoice.cs
- MetadataUtilsSmi.cs
- TransformConverter.cs
- StringBlob.cs
- TreeView.cs
- SystemPens.cs
- FlowLayout.cs
- DesignOnlyAttribute.cs
- TokenBasedSet.cs
- SoapConverter.cs
- EditorPart.cs
- SocketAddress.cs
- InternalBase.cs
- _ListenerRequestStream.cs
- WindowsAuthenticationEventArgs.cs
- MouseWheelEventArgs.cs
- DefaultWorkflowLoaderService.cs
- XmlSchemaAppInfo.cs
- SqlUserDefinedTypeAttribute.cs
- TextViewBase.cs
- UInt16Converter.cs
- GridViewHeaderRowPresenter.cs
- WorkflowMarkupSerializerMapping.cs
- Single.cs
- RSAProtectedConfigurationProvider.cs
- WebPartTransformerAttribute.cs
- InputLangChangeRequestEvent.cs
- AssemblyCacheEntry.cs
- DependencyObjectPropertyDescriptor.cs
- CodeLinePragma.cs
- File.cs
- MonthCalendar.cs
- SamlAuthenticationStatement.cs
- SelectorItemAutomationPeer.cs
- ElementProxy.cs
- EntityDataSourceReferenceGroup.cs
- cookie.cs
- CompilerInfo.cs
- WebPartMovingEventArgs.cs
- ReferencedType.cs
- XmlDataSourceNodeDescriptor.cs
- SamlConditions.cs