Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Base / MS / Internal / Verify.cs / 1305600 / Verify.cs
/**************************************************************************\ Copyright Microsoft Corporation. All Rights Reserved. \**************************************************************************/ namespace MS.Internal { using System; using System.Diagnostics; using System.Security; using System.Security.Permissions; using System.Threading; using System.IO; using MS.Internal.WindowsBase; ////// A static class for retail validated assertions. /// Instead of breaking into the debugger an exception is thrown. /// internal static class Verify { ////// Ensure that the current thread's apartment state is what's expected. /// /// /// The required apartment state for the current thread. /// /// /// The message string for the exception to be thrown if the state is invalid. /// ////// Thrown if the calling thread's apartment state is not the same as the requiredState. /// public static void IsApartmentState(ApartmentState requiredState) { if (Thread.CurrentThread.GetApartmentState() != requiredState) { throw new InvalidOperationException(SR.Get(SRID.Verify_ApartmentState, requiredState)); } } ////// Ensure that an argument is neither null nor empty. /// /// The string to validate. /// The name of the parameter that will be presented if an exception is thrown. public static void IsNeitherNullNorEmpty(string value, string name) { // catch caller errors, mixing up the parameters. Name should never be empty. Debug.Assert(!string.IsNullOrEmpty(name)); // Notice that ArgumentNullException and ArgumentException take the parameters in opposite order :P if (value == null) { throw new ArgumentNullException(name, SR.Get(SRID.Verify_NeitherNullNorEmpty)); } if (value == "") { throw new ArgumentException(SR.Get(SRID.Verify_NeitherNullNorEmpty), name); } } ///Verifies that an argument is not null. ///Type of the object to validate. Must be a class. /// The object to validate. /// The name of the parameter that will be presented if an exception is thrown. public static void IsNotNull(T obj, string name) where T : class { if (obj == null) { throw new ArgumentNullException(name); } } /// /// Verifies the specified expression is true. Throws an ArgumentException if it's not. /// /// The expression to be verified as true. /// Name of the parameter to include in the ArgumentException. /// The message to include in the ArgumentException. public static void IsTrue(bool expression, string name, string message) { if (!expression) { throw new ArgumentException(message, name); } } ////// Verifies two values are not equal to each other. Throws an ArgumentException if they are. /// /// The actual value. /// The value that 'actual' should not be. /// The name to display for 'actual' in the exception if this test fails. /// The message to include in the ArgumentException. public static void AreNotEqual(T actual, T notExpected, string parameterName, string message) { if (notExpected == null) { // Two nulls are considered equal, regardless of type semantics. if (actual == null || actual.Equals(notExpected)) { throw new ArgumentException(SR.Get(SRID.Verify_AreNotEqual, notExpected), parameterName); } } else if (notExpected.Equals(actual)) { throw new ArgumentException(SR.Get(SRID.Verify_AreNotEqual, notExpected), parameterName); } } /// /// Verifies the specified file exists. Throws an ArgumentException if it doesn't. /// /// The file path to check for existence. /// Name of the parameter to include in the ArgumentException. ///This method demands FileIOPermission(FileIOPermissionAccess.PathDiscovery) public static void FileExists(string filePath, string parameterName) { Verify.IsNeitherNullNorEmpty(filePath, parameterName); if (!File.Exists(filePath)) { throw new ArgumentException(SR.Get(SRID.Verify_FileExists, filePath), parameterName); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. /**************************************************************************\ Copyright Microsoft Corporation. All Rights Reserved. \**************************************************************************/ namespace MS.Internal { using System; using System.Diagnostics; using System.Security; using System.Security.Permissions; using System.Threading; using System.IO; using MS.Internal.WindowsBase; ////// A static class for retail validated assertions. /// Instead of breaking into the debugger an exception is thrown. /// internal static class Verify { ////// Ensure that the current thread's apartment state is what's expected. /// /// /// The required apartment state for the current thread. /// /// /// The message string for the exception to be thrown if the state is invalid. /// ////// Thrown if the calling thread's apartment state is not the same as the requiredState. /// public static void IsApartmentState(ApartmentState requiredState) { if (Thread.CurrentThread.GetApartmentState() != requiredState) { throw new InvalidOperationException(SR.Get(SRID.Verify_ApartmentState, requiredState)); } } ////// Ensure that an argument is neither null nor empty. /// /// The string to validate. /// The name of the parameter that will be presented if an exception is thrown. public static void IsNeitherNullNorEmpty(string value, string name) { // catch caller errors, mixing up the parameters. Name should never be empty. Debug.Assert(!string.IsNullOrEmpty(name)); // Notice that ArgumentNullException and ArgumentException take the parameters in opposite order :P if (value == null) { throw new ArgumentNullException(name, SR.Get(SRID.Verify_NeitherNullNorEmpty)); } if (value == "") { throw new ArgumentException(SR.Get(SRID.Verify_NeitherNullNorEmpty), name); } } ///Verifies that an argument is not null. ///Type of the object to validate. Must be a class. /// The object to validate. /// The name of the parameter that will be presented if an exception is thrown. public static void IsNotNull(T obj, string name) where T : class { if (obj == null) { throw new ArgumentNullException(name); } } /// /// Verifies the specified expression is true. Throws an ArgumentException if it's not. /// /// The expression to be verified as true. /// Name of the parameter to include in the ArgumentException. /// The message to include in the ArgumentException. public static void IsTrue(bool expression, string name, string message) { if (!expression) { throw new ArgumentException(message, name); } } ////// Verifies two values are not equal to each other. Throws an ArgumentException if they are. /// /// The actual value. /// The value that 'actual' should not be. /// The name to display for 'actual' in the exception if this test fails. /// The message to include in the ArgumentException. public static void AreNotEqual(T actual, T notExpected, string parameterName, string message) { if (notExpected == null) { // Two nulls are considered equal, regardless of type semantics. if (actual == null || actual.Equals(notExpected)) { throw new ArgumentException(SR.Get(SRID.Verify_AreNotEqual, notExpected), parameterName); } } else if (notExpected.Equals(actual)) { throw new ArgumentException(SR.Get(SRID.Verify_AreNotEqual, notExpected), parameterName); } } /// /// Verifies the specified file exists. Throws an ArgumentException if it doesn't. /// /// The file path to check for existence. /// Name of the parameter to include in the ArgumentException. ///This method demands FileIOPermission(FileIOPermissionAccess.PathDiscovery) public static void FileExists(string filePath, string parameterName) { Verify.IsNeitherNullNorEmpty(filePath, parameterName); if (!File.Exists(filePath)) { throw new ArgumentException(SR.Get(SRID.Verify_FileExists, filePath), parameterName); } } } } // 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
- SetterBaseCollection.cs
- HtmlInputControl.cs
- AdapterDictionary.cs
- ServiceDescriptionSerializer.cs
- SessionChannels.cs
- ContextMenu.cs
- DateTimeStorage.cs
- TCEAdapterGenerator.cs
- DataGridViewCellStyle.cs
- RectKeyFrameCollection.cs
- FormattedText.cs
- ParsedAttributeCollection.cs
- HostingEnvironment.cs
- JoinElimination.cs
- PerspectiveCamera.cs
- ReferenceAssemblyAttribute.cs
- FileDialogCustomPlace.cs
- DecimalAnimationUsingKeyFrames.cs
- QilStrConcatenator.cs
- Match.cs
- CollectionViewGroupInternal.cs
- dataobject.cs
- ConsumerConnectionPoint.cs
- XPathNodePointer.cs
- COM2ExtendedTypeConverter.cs
- ProcessHostConfigUtils.cs
- ArrayTypeMismatchException.cs
- MeasureItemEvent.cs
- ChildTable.cs
- RIPEMD160.cs
- TreeIterator.cs
- SortedList.cs
- X509CertificateChain.cs
- FragmentNavigationEventArgs.cs
- DodSequenceMerge.cs
- VisualTreeHelper.cs
- CodeDirectiveCollection.cs
- IsolationInterop.cs
- WmlLiteralTextAdapter.cs
- ButtonChrome.cs
- WindowsAuthenticationEventArgs.cs
- ResourceAttributes.cs
- SafeSecurityHandles.cs
- Normalization.cs
- SimpleType.cs
- ComponentEditorForm.cs
- File.cs
- RefType.cs
- StrongNameUtility.cs
- NoneExcludedImageIndexConverter.cs
- SaveFileDialog.cs
- BidPrivateBase.cs
- DynamicExpression.cs
- ObjectDataSourceEventArgs.cs
- CatalogZoneBase.cs
- ActivityMetadata.cs
- AffineTransform3D.cs
- FileLoadException.cs
- NavigatorInput.cs
- RenderData.cs
- ScrollItemPattern.cs
- StateManagedCollection.cs
- BitmapEffectInput.cs
- AsymmetricSignatureDeformatter.cs
- SerializationFieldInfo.cs
- PtsHost.cs
- SQLGuid.cs
- CultureTable.cs
- securitymgrsite.cs
- NamespaceQuery.cs
- AnnotationMap.cs
- ValueOfAction.cs
- FutureFactory.cs
- Attributes.cs
- TableParaClient.cs
- CheckableControlBaseAdapter.cs
- CodeMethodMap.cs
- OpCellTreeNode.cs
- TextUtf8RawTextWriter.cs
- SharedPersonalizationStateInfo.cs
- QilIterator.cs
- DbRetry.cs
- DirectoryObjectSecurity.cs
- NumberAction.cs
- SafeTimerHandle.cs
- assemblycache.cs
- PerformanceCounterLib.cs
- UniqueConstraint.cs
- ScrollChrome.cs
- MouseDevice.cs
- CodeNamespace.cs
- SimpleTypeResolver.cs
- WindowsGraphicsWrapper.cs
- ExpressionBuilder.cs
- PeerObject.cs
- VisualTarget.cs
- GeometryDrawing.cs
- AnonymousIdentificationSection.cs
- MenuAutomationPeer.cs
- CustomValidator.cs