用DataGridView过滤器实现对应表在标准表上的对应上限和下限

 

 

    我这边是客户端查找对应标准表中的上限和下限，用两个Query找到查找内容和标准表。。。

  代码如下：以做备份

 

 CurrencyManager cm  =  (CurrencyManager)BindingContext[ConditionGridView.DataSource];
                 int  rowCount  =  cm.Count;

                 for  ( int  row  =   0 ; row  <  rowCount;  ++ row)
                 ... {
                    DataGridViewRow dgvr = ConditionGridView.Rows[row];
                    int tempi = int.Parse(dgvr.Cells[1].Value.ToString());
                    DataGridViewRow dgvr2 = ConditionGridView.Rows[row + 1];
                    int tempi2 = int.Parse(dgvr2.Cells[1].Value.ToString());
                    
                    if (currentExp > tempi && currentExp < tempi2)
                    ...{
                        cm.SuspendBinding();//这是挂起数据的绑定，是必要有的，
                        dgvr.Visible = true;
                        dgvr2.Visible = true;
                        num = 1;
                     
                         tempi3 = int.Parse(dgvr.Cells[0].Value.ToString());
                    }
                    else
                    ...{
                        cm.SuspendBinding();
                        if (num == 1)
                        ...{
                            
                            dgvr2.Visible = false;
                            num = 0;
                        }
                        else if (num == 0)
                        ...{
                            dgvr.Visible = false;
                            dgvr2.Visible = false;
                        
                        }
                       

    现在手头正好碰到这个问题，知道应该使用数据结构的一个B+和B-算法比较标准，暂时先胡乱写个代码交货。。。