用于建立连接的OO概念

Question

有没有办法可以将OO概念应用于向查询添加连接字符串？每当我想在asp.net中编写查询时，我必须反复输入连接字符串

Answer 1

public class dbhandler
{
    private SqlConnection con;
    private string ConnectionString;

    public dbhandler()
    {
        ConnectionString ="Your connection string here";

    }

    public SqlConnection Connect()
    {
        con = new SqlConnection(ConnectionString);
    }
}