求教，如何用命令按钮控制DataGridView的选择行的上移，下移。

Question

设置一下DataGrid.CurrentRowIndex 属性,试试看

Answer 1

我是根据一个排序字段来实现上下移动，下面是控制按钮的代码：
try
            {
                int i, j;
                string temp;                BindingManagerBase bmb = this.BindingContext[this.gg_FieldValidD_listDataGridView.DataSource, this.gg_FieldValidD_listDataGridView.DataMember];                if (bmb.Position > 0)
                {
                    i = bmb.Position;
                    j = i - 1;                    //交换位置
                    temp = this.gg_FieldValidD_listDataGridView.Rows[j].Cells[2].Value.ToString();
                    gg_FieldValidD_listDataGridView.Rows[j].Cells[2].Value = gg_FieldValidD_listDataGridView.CurrentRow.Cells[2].Value;
                    gg_FieldValidD_listDataGridView.CurrentRow.Cells[2].Value = int.Parse(temp);
                    //排序
                    DataGridViewColumn newColumn = gg_FieldValidD_listDataGridView.Columns[2];
                    ListSortDirection direction = ListSortDirection.Ascending;
                    this.gg_FieldValidD_listDataGridView.Sort(newColumn, direction);                    //提交
                    gg_FieldValidD_listTableAdapter.Update(sjcjDataSet.gg_FieldValidD_list);                    this.gg_FieldValidD_listTableAdapter.FillGradeList(sjcjDataSet.gg_FieldValidD_list);
                    this.gg_FieldValidD_listDataGridView.CurrentCell = gg_FieldValidD_listDataGridView.Rows[j].Cells[0];
                }
            }
            catch
            {
                MessageBox.Show("排序值不能为空！　", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            }

Answer 2

比如第n条向下跟第n+1条互换，要使选择蓝色标志移动到第n+1条：
                    int last = dataGridView1.SelectedRows[0].Index;
                    dataGridView1.CurrentCell = dataGridView1.Rows[last + 1].Cells[1];