zoukankan      html  css  js  c++  java
  • Winform 中DataGridView的checkbox列,当修改checkbox状态时实时获得其状态值

         不知道大家有没有这样的经验,当点击或者取消datagridview的checkbox列时,比较难获得其状态是选中还是未选中,进而不好进行其它操作,下面就列出它的解决办法:

       主要用到了DataGridView的CurrentCellDirtyStateChanged和CellValueChanged两个事件

       CurrentCellDirtyStateChanged事件是提交对checkbox状态的修改

         CellValueChanged事件是当状态提交后,也就是单元格值改变后做一些其它的操作

        (1). CurrentCellDirtyStateChanged事件代码:

    void PositionListDataView_CurrentCellDirtyStateChanged( object sender, EventArgs e) 
            { 
                DataGridView grid = sender as DataGridView;
                  if (grid != null ) 
                { 
                    grid.CommitEdit(DataGridViewDataErrorContexts.Commit); 
                } 
            }

      (2). CellValueChanged事件代码: 

    void PositionListDataView_CellValueChanged( object sender, DataGridViewCellEventArgs e)
            {
                DataGridView grid = sender as DataGridView;
                 if (grid != null && e.RowIndex >= 0 )
                {
                    if (grid.Columns[e.ColumnIndex].Name == " Check " )
                    {
                        DataTable dt = grid.DataSource as DataTable;
                         int pstnID = Convert.ToInt32(dt.Rows[e.RowIndex][ 1 ]);
                        
                        DataGridViewCheckBoxCell checkbox = grid.Rows[e.RowIndex].Cells[e.ColumnIndex] as DataGridViewCheckBoxCell; // 获得checkbox列单元格
                        int result = 0 ;
                         if (checkbox != null && checkbox.Value.ToString() == " 1 " )
                        {
                            result   = cuttingReport.UpdateR_RptRstnStandardAndBlendByCheck( this .reportID,pstnID, 1 , 0 );
                        }
                        else
                        {
                            result = cuttingReport.UpdateR_RptRstnStandardAndBlendByCheck( this .reportID, pstnID, 0 , 0 );
                        }
                        if (result < 1 )
                        {
                            MessageBox.Show( " 修改失败" , " 提示" , MessageBoxButtons.OK, MessageBoxIcon.Error);
                        }
                    }
                }
    
            }

    另外:grid.Columns[e.ColumnIndex].Name == "Check" 中Name的值,是在生成DataGridView的Columns时添加的:

    new DataGridViewCheckBoxColumn() { HeaderText = "Check", DataPropertyName = "Checked", Visible = true, Width = 45, Frozen = true, Name = "Check", TrueValue = 1, FalseValue = 0, IndeterminateValue = 0 }

      原文参考:http://www.cnblogs.com/gossip/archive/2008/12/02/1346047.html

  • 相关阅读:
    LeetCode 167. 两数之和 II
    LeetCode 97. 交错字符串
    LeetCode 35. 搜索插入位置
    LeetCode 120. 三角形最小路径和
    LeetCode 350. 两个数组的交集 II
    LeetCode 174. 地下城游戏
    LeetCode 315. 计算右侧小于当前元素的个数
    LeetCode 309. 最佳买卖股票时机含冷冻期
    面试题 17.13. 恢复空格
    去除字符串首尾空格
  • 原文地址:https://www.cnblogs.com/akwwl/p/3757845.html
Copyright © 2011-2022 走看看