private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
        {
            int rowIndex = e.ColumnIndex;

                        if (rowIndex == 8)
            {
               //我想知道在这里怎样可以获取rowIndex == 8的所在行的值,谢谢！：）
            }

            
        }

我也正好遇到这个问题，请达人讲解一下

DataGrid中点击某字段获得这它所在的一行

private void dataGrid1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            Point pt = new Point(e.X,e.Y);
            DataGrid.HitTestInfo hit = dataGrid1.HitTest(pt);
            if(hit.Type == DataGrid.HitTestType.Cell)
            {
                dataGrid1.Select(hit.Row);
            }