Problem in thread

Sani Love 160 Reputation points
2023-05-17T14:29:37.9+00:00

Hi

I start a thread in my main form and inside it I call a module, inside that module, I process some files, after each file, I call:

MainForm.IncreaseProgressBar

which is:

Public Delegate Sub IncreaseProgressBarCallback()
Public Sub IncreaseProgressBar()
If MAPIProgressBarX.InvokeRequired Then
   Invoke(Sub() MAPIProgressBarX.Value = MAPIProgressBarX.Value + 1)
Else
   MAPIProgressBarX.Value = MAPIProgressBarX.Value + 1
End If
End Sub

Simply does not work and progress bar won't go through!

Any workaround? :(

C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
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VB
VB
An object-oriented programming language developed by Microsoft that is implemented on the .NET Framework. Previously known as Visual Basic .NET.
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2 answers

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  1. Karen Payne MVP 35,031 Reputation points
    2023-05-17T15:19:39.5066667+00:00

    Consider looking at IProgress<T> using Report method. Check out a basic example here.

  2. Jiachen Li-MSFT 26,426 Reputation points Microsoft Vendor
    2023-05-25T02:26:40.3166667+00:00

    Hi @Sani Love , Try the following code to see if it helps.

    MainForm.Invoke(New IncreaseProgressBarCallback(AddressOf MainForm.IncreaseProgressBar))

    Best Regards.

    Jiachen Li

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