private void frmSpecialityRecycleBin_Load(object sender, EventArgs e)
 {
     dgvSepciality.BeginInvoke(new Action(() =>
     {
         BLL.SpecialityBLL bll             = new BLL.SpecialityBLL();
         dgvSepciality.AutoGenerateColumns = false;    //自动生成列取消
         var list = bll.GetAllSpecialityByDelFlag(1).Select(model => new
         {
             model.Id,
             model.Name,
             Model_college_name = model.Model_college.Name,
             model.Remark,
             model.Submitter_id,
             model.Submit_datetime
         });
         dgvSepciality.DataSource = list.ToList();
     }));
 }