怎么解析DataGridViewRow。在线等

Question

private void dataGridView1_DragDrop(object sender, DragEventArgs e)
        {
            if (e.Data.GetDataPresent(typeof(DataGridViewRow)))
            {                UserLogin user = Login.GetLogin();
                Invite.InviteM(user.SessionId, DBHelper.userId);//发送邀请信息
            }        }得到的DataGridViewRow里有一列Id，怎么把这列id读取出来？

Answer 1

要得到某一行ID的值，比如第I行，ID所在的列是第一列，那么ID的值就是
datagridview.rows[i].cell[0].tostring()

Answer 2

用这个行不?：DataGridView1.SelectedRows(0).Cells("Id").Value 

Answer 3

取得当前行的Id:
int QuestionId = Convert.ToInt32(dataGridView1.CurrentRow.Cells["ColumnId"].Value.ToString());
遍历所有行，获取checkBox选中的Id
foreach (DataGridViewRow dr in dataGridView1.Rows)
            {
                if (dr.Cells[0].Value != null)
                {
                    if ((bool)dr.Cells[0].Value == true)
                    {
                        int Id = Convert.ToInt32(dr.Cells["ColumnId"].Value.ToString());
                        string State = dr.Cells["ColumnState"].Value.ToString();
                    }
                }
            }