Did you try adding the Browsable attribute?
VB Code:
  1. [b]<Browsable(True)> _[/b]

  2.     Public Overrides Property Text() As String

  3.         Get

  4.             Return MyBase.Text

  5.         End Get

  6.         Set(ByVal Value As String)

  7.             MyBase.Text = Value

  8.             Me.Invalidate()

  9.         End Set

  10.     End Property