WinForm中DataGridView控件在行标题中显示图像

Private Sub xDataGridView1_RowPostPaint(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewRowPostPaintEventArgs) Handles xDataGridView1.RowPostPaint
    e.Graphics.DrawImage(My.Resources.IcoAlert, e.RowBounds.Left + 2, e.RowBounds.Top + 2, 32, 32)    '绘制图标 xDataGridView1.RowHeadersWidth - 20
    xDataGridView1.Rows(e.RowIndex).HeaderCell.ToolTipText = "有报警尽快处理设置提示信息"
End Sub