DEV 251企业程序库2.0介绍课件.ppt

缓存 Caching 安全 Security 数据访问 Data Access 日志 Logging 例外处理 Exception Handling Plug-in Config Helpers Design Instrumen-tation ObjectBuilder Cryptography 核心 Core 应用程序块的依赖 部分依赖 Caching Security Data Access Logging Exception Handling Plug-in Config Helpers Design Instrumen-tation ObjectBuilder Cryptography Core Block Dependency Optional ProviderDependency Caching Security Data Access Logging Exception Handling Plug-in Config Helpers Design Instrumen-tation ObjectBuilder Cryptography Core Block Dependency Optional ProviderDependency Caching Security Data Access Logging Exception Handling Plug-in Config Helpers Design Instrumen-tation ObjectBuilder Cryptography Core Block Dependency Optional ProviderDependency // Or if you prefer one line... Customer cust = GetCustomer(123); // Log the customer – will call cust.ToString() for the log entry Logger.Write(cust, category, priority); Caching Security Data Access Logging Exception Handling Plug-in Config Helpers Design Instrumen-tation ObjectBuilder Cryptography Core Block Dependency Optional ProviderDependency Public Function GetProductsInCategory(ByRef Category As Integer) As DataSet Create the Database object, using the database instance with the specified logical name. This is mapped to a connection string in the configuration file Dim db As Database = DatabaseFactory.CreateDatabase(Sales) Invoke the stored procedure with one line of code! return db.ExecuteDataSet(GetProductsByCategory, Category) Note: connection was closed by ExecuteDataSet method call End Function public Dataset GetProductsInCategory(string connectionString, int category) { // Create the Database object, using the specified connection string SqlDatabase db = new SqlDatabase(connectionString); // Invoke the stored procedure with one line of code! return db.ExecuteDataSet(GetProduct