摘要:
ref parametersPassing variables by value is the default. We can, however, force value parameters to be passed by reference.To do so, we use the ref keyword. If a parameter is passed to a method, and i... 阅读全文
摘要:
Listing 11-14: Building connection strings using ConnectionStringBuilderVB‘ Retrieve an existing connection string into a Connection String BuilderDim builder As New System.Data.SqlClient.SqlConnectio... 阅读全文
摘要:
Authentication is the process that determines the identity of a user. After a user has been authenticated, a developer can determine if the identified user has authorization to proceed. It is impossib... 阅读全文