private void btnQuery_Click(object sender, EventArgs e)
        {
            switch (cmbQuery.SelectedIndex)
            {
            case 0:    //全部
                AdministratorTaskBindingSource.DataSource = AdministratorTaskService.GetAll();
                break;

            case 1:    //按任务编号查询
                AdministratorTaskBindingSource.DataSource = AdministratorTaskService.Get(txtQuery.Text);
                break;

            case 2:    //按工作人员姓名查询
                AdministratorTaskBindingSource.DataSource = AdministratorTaskService.QueryTaskByServerName(txtQuery.Text);
                break;

            case 3:    //按工作人员ID查询
                AdministratorTaskBindingSource.DataSource = AdministratorTaskService.QueryTaskByServerID(txtQuery.Text);
                break;
            }
            AdministratorTaskBindingSource.ResetBindings(true);
        }
 public void QueryAll()
 {
     AdministratorTaskBindingSource.DataSource = AdministratorTaskService.GetAll();
     AdministratorTaskBindingSource.ResetBindings(false);
 }