Mouse over Popup In Data grid View

[.paul.]

A ToolTip control can also display an image.

set ownerdraw to true.

a balloon tooltip can't display an image.

ToolTip1.SetToolTip(dgv, " ")

Private Sub ToolTip1_Draw(ByVal sender As Object, ByVal e As System.Windows.Forms.DrawToolTipEventArgs) Handles ToolTip1.Draw
    e.DrawBackground()
    e.DrawBorder()
    e.DrawText()
    e.Graphics.DrawImage(img, 0, 0)
End Sub
 
Private Sub ToolTip1_Popup(ByVal sender As System.Object, ByVal e As System.Windows.Forms.PopupEventArgs) Handles ToolTip1.Popup
    e.ToolTipSize = New Size(img.Width, img.Height)
End Sub