4. 然后在添加如下事件: private void Settings_SettingsLoaded(object sender, System.Configuration.SettingsLoadedEventArgs e)
{
string connectionString = Settings.Default.anjouConnectionString;
//修改连接字符串中的【数据库文件路径】
connectionString = connectionString.Replace(@"\App_Data\db1.mdb",
System.Web.HttpContext.Current.Request.PhysicalApplicationPath+ @"\App_Data\db1.mdb");
//修改连接字符串中的【密码】
connectionString = connectionString.Replace("Database Password=123", "Database Password=newpassword");
this["anjouConnectionString"] = connectionString;