Click here to Skip to main content
       

.NET Framework

 
GeneralRe: [VB.NET 2008] Change form from separate thread (Windows CE) Pinmembersteve_949661319-Nov-12 4:37 
AnswerRe: [VB.NET 2008] Change form from separate thread (Windows CE) PinmemberEddy Vluggen19-Nov-12 5:04 
GeneralRe: [VB.NET 2008] Change form from separate thread (Windows CE) Pinmembersteve_949661319-Nov-12 22:54 
GeneralRe: [VB.NET 2008] Change form from separate thread (Windows CE) PinmemberEddy Vluggen20-Nov-12 0:53 
GeneralRe: [VB.NET 2008] Change form from separate thread (Windows CE) Pinmembersteve_949661320-Nov-12 3:36 
GeneralRe: [VB.NET 2008] Change form from separate thread (Windows CE) PinmemberEddy Vluggen20-Nov-12 4:33 
GeneralRe: [VB.NET 2008] Change form from separate thread (Windows CE) Pinmembersteve_949661320-Nov-12 5:23 
GeneralRe: [VB.NET 2008] Change form from separate thread (Windows CE) PinmemberEddy Vluggen20-Nov-12 9:21 
steve_9496613 wrote:
About passing a parameter in an object when I start the thread, I can't do this because in the Compact Framework (not the full .NET) only the method Thread.Start() is supported, the method Thread.Start(Object) is not supported.

Aw, darn. Without that, it's not possible to pass the form as an argument.
 
Since AggiornaLabel is a method of the form (as should be), you'd need to have a reference to the form in order to invoke it. An ugly bypass would be to use a "shared" member, aka a static method. Works similar to the shared integer called 'iii'.
Imports System.Threading
 
Public Class Form1
    Dim MyNewThread As Thread
 
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click        
        'create the thread 
        MyNewThread = New Thread(AddressOf MyThread.MyThreadExecute)
        MyNewThread.Name = "NuovoThread"
        MyThread.ThatForm = Me
        'start the thread
        MyNewThread.Start()
    End Sub
 
    Public Sub AggiornaLabel(ByVal What As String)
        If InvokeRequired Then
            Invoke(New Action(Of String)(AddressOf AggiornaLabel), New Object() {What})
            Return
        End If
 
        Label1.Text = What
    End Sub
End Class
 
Public Class MyThread
    Private Shared miii As Int32 = 0
    Public Shared ThatForm As Form1
 
    Public Shared Property iii() As Int32
        Get
            Return miii
        End Get
        Set(ByVal value As Int32)
            miii = value
        End Set
    End Property
 
    Public Shared Sub MyThreadExecute()
        Do
            iii = iii + 1
            ThatForm.AggiornaLabel(iii.ToString)
            Thread.Sleep(100)
        Loop
    End Sub
End Class
That's abusing things a bit; a class that's never instantiated would be a module, eliminating the need to declare each member being 'shared';
Module MyThread
    Private miii As Int32 = 0
    Public ThatForm As Form1
 
    Public Property iii() As Int32
        Get
            Return miii
        End Get
        Set(ByVal value As Int32)
            miii = value
        End Set
    End Property
 
    Public Sub MyThreadExecute()
        Do
            iii = iii + 1
            ThatForm.AggiornaLabel(iii.ToString)
            Thread.Sleep(100)
        Loop
    End Sub
End Module
Bastard Programmer from Hell Suspicious | :suss:
If you can't read my code, try converting it here[^]
They hate us for our freedom![^]

GeneralRe: [VB.NET 2008] Change form from separate thread (Windows CE) Pinmembersteve_949661320-Nov-12 21:25 
GeneralRe: [VB.NET 2008] Change form from separate thread (Windows CE) PinmemberEddy Vluggen21-Nov-12 5:07 
QuestionBinding gridview from webservice using jquery Pinmembersaravanan2509218-Nov-12 20:41 
AnswerRe: Binding gridview from webservice using jquery PinmemberPhanindra26119-Nov-12 6:05 
QuestionNlog for .Net compact PinmemberTalSt17-Nov-12 19:24 
AnswerRe: Nlog for .Net compact PinmvpRichard MacCutchan17-Nov-12 21:43 
GeneralRe: Nlog for .Net compact PinmemberTalSt18-Nov-12 1:15 
GeneralRe: Nlog for .Net compact PinmvpRichard MacCutchan18-Nov-12 1:36 
GeneralRe: Nlog for .Net compact PinmemberTalSt18-Nov-12 1:55 
GeneralRe: Nlog for .Net compact PinmvpRichard MacCutchan18-Nov-12 2:06 
AnswerRe: Nlog for .Net compact Pinmemberjschell19-Nov-12 9:11 
News.NET projects in koramangala,bangalore Pinmemberraji.1138716-Nov-12 22:24 
News2013 final year IEEE projects Pinmemberraji.1138716-Nov-12 22:20 
QuestionWebsite Developemnt Pinmemberradha123 from Hyderabad15-Nov-12 1:39 
AnswerRe: Website Developemnt PinmvpRichard MacCutchan15-Nov-12 2:41 
GeneralRe: Website Developemnt PinprotectorPete O'Hanlon15-Nov-12 3:00 
GeneralRe: Website Developemnt PinmvpRichard MacCutchan15-Nov-12 4:12 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.


Advertise | Privacy | Mobile
Web03 | 2.8.140709.1 | Last Updated 7 Jul 2014
Copyright © CodeProject, 1999-2014
All Rights Reserved. Terms of Service
Layout: fixed | fluid