private void UCtlAccountInformation_Load(object sender, EventArgs e)
 {
     //默认显示AccountStatus数据库的最大日期的账号和组合数据。
     BLL.AccountStatusManager manager = new BLL.AccountStatusManager();
     if (manager.GetCount() == 0)
     {
         this.dateTimePicker1.Value = DateTime.Now;
     }
     else
     {
         this.dateTimePicker1.Value = manager.GetMaxDate();
         this.btnSearch_Click(this, new EventArgs());
     }
 }