Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / CompMod / System / ComponentModel / DefaultValueAttribute.cs / 1305376 / DefaultValueAttribute.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.ComponentModel { using System; using System.ComponentModel; using System.Diagnostics; using System.Globalization; using System.Runtime.InteropServices; #if !SILVERLIGHT using System.Runtime.Serialization.Formatters; #endif using System.Security.Permissions; ////// #if !SILVERLIGHT [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1019:DefineAccessorsForAttributeArguments")] [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1813:AvoidUnsealedAttributes")] #endif [AttributeUsage(AttributeTargets.All)] public class DefaultValueAttribute : Attribute { ///Specifies the default value for a property. ////// This is the default value. /// private object value; ////// public DefaultValueAttribute(Type type, string value) { // The try/catch here is because attributes should never throw exceptions. We would fail to // load an otherwise normal class. try { #if !SILVERLIGHT this.value = TypeDescriptor.GetConverter(type).ConvertFromInvariantString(value); #else if (type.IsEnum) { this.value = Enum.Parse(type, value, true); } else if (type == typeof(TimeSpan)) { this.value = TimeSpan.Parse(value); } else if (type.Module == typeof(string).Module) { this.value = Convert.ChangeType(value, type, CultureInfo.InvariantCulture); } #endif } catch { #if !SILVERLIGHT Debug.Fail("Default value attribute of type " + type.FullName + " threw converting from the string '" + value + "'."); #else Debug.WriteLine("Default value attribute of type " + type.FullName + " threw converting from the string '" + value + "'."); #endif } } ///Initializes a new instance of the ///class, converting the /// specified value to the /// specified type, and using the U.S. English culture as the /// translation /// context. /// public DefaultValueAttribute(char value) { this.value = value; } ///Initializes a new instance of the ///class using a Unicode /// character. /// public DefaultValueAttribute(byte value) { this.value = value; } ///Initializes a new instance of the ///class using an 8-bit unsigned /// integer. /// public DefaultValueAttribute(short value) { this.value = value; } ///Initializes a new instance of the ///class using a 16-bit signed /// integer. /// public DefaultValueAttribute(int value) { this.value = value; } ///Initializes a new instance of the ///class using a 32-bit signed /// integer. /// public DefaultValueAttribute(long value) { this.value = value; } ///Initializes a new instance of the ///class using a 64-bit signed /// integer. /// public DefaultValueAttribute(float value) { this.value = value; } ///Initializes a new instance of the ///class using a /// single-precision floating point /// number. /// public DefaultValueAttribute(double value) { this.value = value; } ///Initializes a new instance of the ///class using a /// double-precision floating point /// number. /// public DefaultValueAttribute(bool value) { this.value = value; } ///Initializes a new instance of the ///class using a /// value. /// public DefaultValueAttribute(string value) { this.value = value; } ///Initializes a new instance of the ///class using a . /// public DefaultValueAttribute(object value) { this.value = value; } ///Initializes a new instance of the ////// class. /// public virtual object Value { get { return value; } } public override bool Equals(object obj) { if (obj == this) { return true; } DefaultValueAttribute other = obj as DefaultValueAttribute; if (other != null) { if (Value != null) { return Value.Equals(other.Value); } else { return (other.Value == null); } } return false; } public override int GetHashCode() { return base.GetHashCode(); } protected void SetValue(object value) { this.value = value; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ ///// Gets the default value of the property this /// attribute is /// bound to. /// ///// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.ComponentModel { using System; using System.ComponentModel; using System.Diagnostics; using System.Globalization; using System.Runtime.InteropServices; #if !SILVERLIGHT using System.Runtime.Serialization.Formatters; #endif using System.Security.Permissions; ////// #if !SILVERLIGHT [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1019:DefineAccessorsForAttributeArguments")] [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1813:AvoidUnsealedAttributes")] #endif [AttributeUsage(AttributeTargets.All)] public class DefaultValueAttribute : Attribute { ///Specifies the default value for a property. ////// This is the default value. /// private object value; ////// public DefaultValueAttribute(Type type, string value) { // The try/catch here is because attributes should never throw exceptions. We would fail to // load an otherwise normal class. try { #if !SILVERLIGHT this.value = TypeDescriptor.GetConverter(type).ConvertFromInvariantString(value); #else if (type.IsEnum) { this.value = Enum.Parse(type, value, true); } else if (type == typeof(TimeSpan)) { this.value = TimeSpan.Parse(value); } else if (type.Module == typeof(string).Module) { this.value = Convert.ChangeType(value, type, CultureInfo.InvariantCulture); } #endif } catch { #if !SILVERLIGHT Debug.Fail("Default value attribute of type " + type.FullName + " threw converting from the string '" + value + "'."); #else Debug.WriteLine("Default value attribute of type " + type.FullName + " threw converting from the string '" + value + "'."); #endif } } ///Initializes a new instance of the ///class, converting the /// specified value to the /// specified type, and using the U.S. English culture as the /// translation /// context. /// public DefaultValueAttribute(char value) { this.value = value; } ///Initializes a new instance of the ///class using a Unicode /// character. /// public DefaultValueAttribute(byte value) { this.value = value; } ///Initializes a new instance of the ///class using an 8-bit unsigned /// integer. /// public DefaultValueAttribute(short value) { this.value = value; } ///Initializes a new instance of the ///class using a 16-bit signed /// integer. /// public DefaultValueAttribute(int value) { this.value = value; } ///Initializes a new instance of the ///class using a 32-bit signed /// integer. /// public DefaultValueAttribute(long value) { this.value = value; } ///Initializes a new instance of the ///class using a 64-bit signed /// integer. /// public DefaultValueAttribute(float value) { this.value = value; } ///Initializes a new instance of the ///class using a /// single-precision floating point /// number. /// public DefaultValueAttribute(double value) { this.value = value; } ///Initializes a new instance of the ///class using a /// double-precision floating point /// number. /// public DefaultValueAttribute(bool value) { this.value = value; } ///Initializes a new instance of the ///class using a /// value. /// public DefaultValueAttribute(string value) { this.value = value; } ///Initializes a new instance of the ///class using a . /// public DefaultValueAttribute(object value) { this.value = value; } ///Initializes a new instance of the ////// class. /// public virtual object Value { get { return value; } } public override bool Equals(object obj) { if (obj == this) { return true; } DefaultValueAttribute other = obj as DefaultValueAttribute; if (other != null) { if (Value != null) { return Value.Equals(other.Value); } else { return (other.Value == null); } } return false; } public override int GetHashCode() { return base.GetHashCode(); } protected void SetValue(object value) { this.value = value; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007./// Gets the default value of the property this /// attribute is /// bound to. /// ///
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- PropertyFilter.cs
- PropertyInformationCollection.cs
- CfgParser.cs
- SpecialFolderEnumConverter.cs
- UserControlAutomationPeer.cs
- ZipIOModeEnforcingStream.cs
- Odbc32.cs
- CircleHotSpot.cs
- RemotingSurrogateSelector.cs
- RuntimeWrappedException.cs
- SqlProviderServices.cs
- Zone.cs
- RichTextBox.cs
- _NtlmClient.cs
- EventProviderWriter.cs
- CharEntityEncoderFallback.cs
- TcpHostedTransportConfiguration.cs
- CacheMode.cs
- SqlRetyper.cs
- AccessibleObject.cs
- GridViewRowPresenterBase.cs
- DesignerDataRelationship.cs
- CookielessHelper.cs
- XmlEncoding.cs
- ObjRef.cs
- TypeListConverter.cs
- HtmlPhoneCallAdapter.cs
- RawKeyboardInputReport.cs
- ReverseQueryOperator.cs
- GregorianCalendarHelper.cs
- TraceFilter.cs
- TransactionContext.cs
- DataServiceQuery.cs
- FastEncoderWindow.cs
- SqlExpressionNullability.cs
- AccessibilityHelperForXpWin2k3.cs
- XmlMembersMapping.cs
- BinaryFormatterSinks.cs
- TableItemPatternIdentifiers.cs
- TagMapInfo.cs
- CodeCastExpression.cs
- TraceLog.cs
- DataGridViewColumnEventArgs.cs
- AlphabetConverter.cs
- AsyncInvokeOperation.cs
- Reference.cs
- CapabilitiesRule.cs
- TextServicesLoader.cs
- SqlDataSourceCache.cs
- PenContexts.cs
- FilterRepeater.cs
- NetDataContractSerializer.cs
- XsdDateTime.cs
- SignatureDescription.cs
- HtmlDocument.cs
- ReadContentAsBinaryHelper.cs
- CorrelationQueryBehavior.cs
- PipeSecurity.cs
- DomainLiteralReader.cs
- PartDesigner.cs
- HebrewCalendar.cs
- OletxVolatileEnlistment.cs
- DateTimeHelper.cs
- InfoCardKeyedHashAlgorithm.cs
- MimeWriter.cs
- MatrixStack.cs
- XmlSerializerFactory.cs
- InvalidCardException.cs
- RoutedEventConverter.cs
- KeyValuePairs.cs
- ZipIOExtraFieldZip64Element.cs
- HostSecurityManager.cs
- MarkupProperty.cs
- IDispatchConstantAttribute.cs
- GetWinFXPath.cs
- MetadataHelper.cs
- PackWebResponse.cs
- EventLogTraceListener.cs
- CodeChecksumPragma.cs
- WebPartHeaderCloseVerb.cs
- EntityViewGenerationAttribute.cs
- XslCompiledTransform.cs
- DetailsViewInsertedEventArgs.cs
- SocketException.cs
- ConfigurationPropertyAttribute.cs
- PermissionSetTriple.cs
- COM2IDispatchConverter.cs
- DiscoveryReference.cs
- WebPartTransformer.cs
- ValueTypeFixupInfo.cs
- _NtlmClient.cs
- GeneralTransform3D.cs
- QilReference.cs
- UntrustedRecipientException.cs
- DbConnectionStringBuilder.cs
- PropertyTabAttribute.cs
- HtmlTernaryTree.cs
- X500Name.cs
- PartialCachingAttribute.cs
- XmlCharCheckingReader.cs