Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / XPathBinder.cs / 1305376 / 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.Xml; using System.Xml.XPath; ////// 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.Xml; using System.Xml.XPath; ////// 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
- DataContractSerializerMessageContractImporter.cs
- FileEnumerator.cs
- GeometryCombineModeValidation.cs
- XmlSerializerOperationGenerator.cs
- ByteAnimationBase.cs
- HuffCodec.cs
- MatrixValueSerializer.cs
- SqlDataSourceConfigureSortForm.cs
- TypeSystemHelpers.cs
- DataView.cs
- DataServiceOperationContext.cs
- GACMembershipCondition.cs
- PersonalizationDictionary.cs
- Lease.cs
- QueryMatcher.cs
- ServiceDurableInstance.cs
- Number.cs
- wmiprovider.cs
- BufferedStream.cs
- CopyAction.cs
- ProcessHost.cs
- ArrayExtension.cs
- KeyValueConfigurationCollection.cs
- WhitespaceRule.cs
- SignatureToken.cs
- WebControl.cs
- TypographyProperties.cs
- Type.cs
- BrowserCapabilitiesFactory35.cs
- ColorAnimation.cs
- WMICapabilities.cs
- NullableLongAverageAggregationOperator.cs
- RelationshipDetailsRow.cs
- CircleHotSpot.cs
- StubHelpers.cs
- StandardBindingReliableSessionElement.cs
- Viewport3DVisual.cs
- DataGridViewAutoSizeColumnsModeEventArgs.cs
- ObjectListShowCommandsEventArgs.cs
- ExpressionBuilder.cs
- ExtenderProvidedPropertyAttribute.cs
- X509Utils.cs
- DecimalConstantAttribute.cs
- BindingWorker.cs
- HttpValueCollection.cs
- RankException.cs
- HtmlButton.cs
- BufferModesCollection.cs
- ReferencedAssemblyResolver.cs
- ObjectNotFoundException.cs
- ObjectQueryExecutionPlan.cs
- Parsers.cs
- QilCloneVisitor.cs
- MDIWindowDialog.cs
- WebRequest.cs
- ObjectItemNoOpAssemblyLoader.cs
- OdbcFactory.cs
- TCPListener.cs
- ExpressionParser.cs
- Input.cs
- PropertyEmitterBase.cs
- PaintValueEventArgs.cs
- SingleResultAttribute.cs
- URLIdentityPermission.cs
- LinqDataSourceHelper.cs
- X509ClientCertificateCredentialsElement.cs
- ClientTargetCollection.cs
- InfoCardProofToken.cs
- BlobPersonalizationState.cs
- WindowsSecurityToken.cs
- Quaternion.cs
- LogSwitch.cs
- UserNameSecurityTokenProvider.cs
- Item.cs
- ReadOnlyDataSourceView.cs
- SmtpDigestAuthenticationModule.cs
- GeometryModel3D.cs
- LingerOption.cs
- AutoGeneratedField.cs
- EntityContainerAssociationSetEnd.cs
- ComboBoxRenderer.cs
- ButtonChrome.cs
- BmpBitmapEncoder.cs
- XomlCompilerResults.cs
- DispatcherBuilder.cs
- PageAsyncTask.cs
- ImageFormat.cs
- EventLogEntryCollection.cs
- RectKeyFrameCollection.cs
- AccessedThroughPropertyAttribute.cs
- UnsafeNativeMethods.cs
- DefaultBindingPropertyAttribute.cs
- ObjectCache.cs
- BitmapSource.cs
- IntSecurity.cs
- InstanceDescriptor.cs
- HoistedLocals.cs
- InputReportEventArgs.cs
- CookieHandler.cs
- BindToObject.cs