How to access databas with VS2010
Imports System.DataImports System.Data.OleDbImports System.StringPublic Class Login Dim sProvider As String = "Provider=Microsoft.Jet.OLEDB.4.0;" Dim sDataSource As String = "Data Source= E:\Code\VB\NewManagerSystem\DataBase\NewsManagerSystem.mdb" Dim sConnString As String = sProvider ...
About the DLL question
In generally, we use the Third software company provides lib or dll. The Third company will provide the common header file to help us find the appropriate interface to access.
whereas upper discription.
The common header file format is like （CommonCore.h）
#ifndef _COMMONCORE_H_#define _COM...
About the singleton pattern
More programming lover like to study pattern. Especially for the newcomer who want to learn more about the basic knowledge.
Therefore, I write a simple demo to demostrate how to denote the singleton pattern.
At first, I need to explain why we apply this pattern. For instance, CEO. we a...