Visual Basic.NET - Colores de controles .NET

Hola, me estoy iniciando en .Net. Necesito saber como utilizar esta rutina en .NET

Dim obj As Object

For Each obj In Me.Controls
If TypeOf obj Is TextBox Then
obj.BackColor = RGB(23, 159, 11)
End If
Next

dim ctl as control
for each ctl in me.controls
if ctl.getype is gettype(Textbox) then
ctl.backcolor=color.fromargb(23,159,11)
end if
next