notSupportedException raising an event

[Trapulo]

I've a strange error with CF 2.0: when I make a raiseEvent, I get a
notsuportedexception execption, and I cannot figure why this.

This is my code:

Public Event DataReceived(ByVal sender As Object, ByVal e As
DataReceivedEventArgs)

Protected Sub OnDataReceived(ByVal sender As Object, ByVal e As
DataReceivedEventArgs)

Try

RaiseEvent DataReceived(sender, e) '<----- here I've the error

Catch ex As Exception

Debug.WriteLine("errore sollevando l'evento: " & ex.Message)

End Try

End Sub

Public Class DataReceivedEventArgs

Inherits EventArgs

Public Sub New(ByVal data As String)

Me._data = data

End Sub

Private _data As String

Public ReadOnly Property Data() As String

Get

Return _data

End Get

End Property



The function is called by an other function that is a callback of a
networkstream.beginRead process.



Any idea?



Thanks

 

[Daniel Moth]

That method is running on a worker thread. I am guessing when you raise the
event, it is caught by a method that touches UI elements. That is not
supported.
http://www.danielmoth.com/Blog/2004/10/invoke-cf-and-full-fx.html
http://www.danielmoth.com/Blog/2004/10/invoke-with-whidbey.html

Cheers
Daniel

 

[Trapulo]

Thank you, but I'm not updating UI. When I update UI from a callback I
always use a me.invoke from the control....

 

[Trapulo]

If can be useful, this is the code that event's hanlder try to run:

Protected Sub OnDataReceived(ByVal sender As Object, ByVal e As
PalmBusSocket.DataReceivedEventArgs)

Dim executor As New ExecuteCommandDelegate(AddressOf ExecuteCommand)

executor.BeginInvoke(e.Data, Nothing, e.Data)

End Sub



However, I've not exception from this code, but from the raiseevent command
in calling class.