Effective Use of Microsoft Enterprise Library: Building by Len Fenster

By Len Fenster

Writing strong company purposes provides a unique problem for builders, yet Microsoft has addressed that problem with the loose, downloadable company Library for the .NET Framework.Enterprise Library is a suite of software blocks and information records that jointly offer performance universal to company functions; each one program block contains complete resource code. missing within the suggestions supplied through Microsoft is an total roadmap to the method of utilizing the appliance blocks. potent Use of Microsoft company Library is that roadmap.Microsoft software improvement lead architect Len Fenster explains precisely how you can construct purposes utilizing firm Library software blocks. Fenster covers all seven software blocks as carried out for .NET Framework 1.1, indicates how one can enhance and use a brand new software block, and explains how firm Library is altering for .NET Framework 2.0.Readers will examine• How the Configuration program Block is designed and will be used at runtime to simply learn and write configuration facts• How the Configuration program Block works at layout time for all blocks• find out how to use the information entry Block to create a conveyable information layer• the best way to use the Exception dealing with software Block to enforce a policy-driven, application-wide exception dealing with approach• tips to use the Logging and Instrumentation program Block to log and device messages self sustaining of the message vacation spot• easy methods to upload authentication, authorization, function club, defense cache, and profile club gains to an program with the protection program Block• the best way to use the Cryptography software Block so as to add performance to encrypt and decrypt facts and create and examine hashes• how one can construct your individual program block and services that "snap" correct into firm LibraryWhether you propose to increase firm Library in your association, or simply use the present program blocks so as to add performance on your structure in a constant, extensible, built-in method, this publication will advisor you thru the complexities and assist you discover a transparent route to luck.

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Implementation Requirements to Support the IStorageProviderReader Interface Method/Properties SectionName Description Gets or sets the configuration section for which the storage configured. Creates an object tha responsible for watch changes in the underl storage mechanism f configuration persiste When a change occu object must raise its ConfigurationC event. Reads the configurat from storage. CreateConfigurationChangeWatcher Read The IStorageProviderWriter Interface The IStorageProviderWriter interface represents a StorageProvider writer for configuration data.

Connection information for connecting to Microsoft SQL Server). The ConfigurationView is very important because it isolates a provider from having to know anything about how to retrieve the data that is needed. This lets an application that uses these providers respond to changes in the underlying configuration data store. If an XmlFileStorageProvider is used because configuration data is held in an XML file, and that XML file is modified outside of the application, the configuration runtime is made aware of this fact and the new configuration data can be retrieved and used.

GetConfiguration("TabConfig") If TypeOf configInfo Is TabConfig Then appConfig = IIf(TypeOf configInfo Is TabConfig, _ CType(configInfo, TabConfig), CType(Nothing, TabConfig)) End If Note that the return value from the GetConfiguration method must be cast to the appropriate runtime type. Also note that no code is written that is specific to accessing data from a file, database, or registry. You don't need to know where the configuration data is being stored. Not only does this ease the development effort, but it also allows the application to be more flexible to any changes that may occur to the underlying configuration store.

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