dataGridView单元格背景的设置

Question

怎么实现dataGridView选择中行获得焦点的单元格背景的设置，失去焦点后，背景颜色为默认背景

Answer 1

private void dataGridView1_CellLeave(object sender, DataGridViewCellEventArgs e)
        {
            this.dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Style.BackColor = Color.AliceBlue;
        }

Answer 2

  private void dataGridView1_CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
        {
            
            if (e.RowIndex == -1)
            {
                //绘制渐变列头
                //bool mouseOver = e.CellBounds.Contains(dataGridView1.PointToClient(Cursor.Position));
                //LinearGradientBrush brush = new LinearGradientBrush(
                //    e.CellBounds,
                //    mouseOver ? Color.PeachPuff : Color.LightGray,
                //    Color.DarkOrange,
                //    LinearGradientMode.Vertical);                //using (brush)
                //{
                //    e.Graphics.FillRectangle(brush, e.CellBounds);
                //    Rectangle border = e.CellBounds;
                //    border.Width -= 1;
                //    e.Graphics.DrawRectangle(Pens.Gray, border);
                //}                // 绘制背景色
                e.Graphics.DrawImage(global::WindowsApplication6.Properties.Resources.主页0, e.CellBounds.X, e.CellBounds.Y);                e.PaintContent(e.CellBounds);
                e.Handled = true;
            }        }

Answer 3

private void dataGridView1_CellLeave(object sender, DataGridViewCellEventArgs e)
  {
  this.dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Style.BackColor = Color.AliceBlue;
  } 
当你选择另外一行的时候，上一行的单元格背景没有换成默认背景  怎么处理呢？我就是想在选择的那一行的时候，光标在的单元格换成特殊背景，其他行的单元格为默认背景就可以了

Answer 4

private void dataGridView1_CellLeave(object sender, DataGridViewCellEventArgs e)
  {
  this.dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Style.BackColor = Color.AliceBlue;
  }

Answer 5

int index=dgv.SelectedRows[0].Index;当鼠标移开后，
this.dataGridView1.Rows[index].Cells[e.ColumnIndex].Style.BackColor = Color.White