Hi , i am developing a winforms application.
I have four forms which is inherited from Baseform in another project .
In all four forms i am using a label to show some transaction count based on network status. i have implemented a thread which gets active form of application and settign up the text . Code works fine if application screen is active, if minimize and open any other application , i am getting an null error exception.
Please help me , how to get an active forms of an application.

Private

 

Sub StartThread()

pollThread =

New Thread(AddressOf PollfileStatus)

pollThread.IsBackground =

True

running =

True

pollThread.Start()

 

End Sub

 

Private Sub PollfileStatus()

 

While (running)
Try

 

For Each e As Control In Me.ActiveForm.Controls

 

If (e.Name = "pbStatus") Then

e.Invoke(

New SetTextCallback(AddressOf Settext), New Object() {e, 10})

 

End If

 

Next

 

Catch ex As Exception

 

Throw New ApplicationException(ex.Message)

 

End Try

Thread.Sleep(6000)

 

End While

 

End Sub