DataGirdView嵌套mdi中样式影响后的解决方案

   private void dgvShow_RowPrePaint(object sender, DataGridViewRowPrePaintEventArgs e)        {            DataGridViewRow dgr = dgvShow.Rows[e.RowIndex];            if (dgr.Cells["是否已回站"].Value.ToString() == "是")            {                if (e.RowIndex % 2 == 0)                {                    dgr.DefaultCellStyle.BackColor = Color.LightCyan;                }                else                {                    dgr.DefaultCellStyle.BackColor = Color.White;                }            }            else            {                dgr.DefaultCellStyle.BackColor = Color.Yellow;            }        }

绘制方法写