CODEWITHSUNDEEP
vb.net.net-5
Al3xa
Al3xa

Reputation: 3

.NET 5.0 WinForms Button_Click event code not running & multiple issues

Issue

I'm trying to Debug an application form with buttons. Usually when we double click the button, the source window shows up with the click event for that button. However, in the latest version of .NET 5.0 release, there are a lot of things not working properly.

The following are multiple issues I'm facing that usually are not there and there is no explanation on Microsoft's Blog or MSDN about these issues:

  1. When I'm adding the source-code to any button_click event, nothing is hapenning after build and debug! I tried to make it work but to no effort.
  2. After renaming control(s) on the form, the project needs a complete rebuild to change the names of the controls in Designer.vb file. This used to be automatic in VB prior to .NET 5.0
  3. Application.Designer.vb randonly desides to default the Me.MainForm = Global.<ProjectNameHere>.<FormNameHere> to Me.MainForm = Global.<ProjectNameHere>.Form1 & then throws an error that Form1 is not found. Why the hell this extra work? VB used to set this automatically.

Code: Button Click Events

Public Class MainWindow
    Private Sub Btn_Exit_Click(sender As Object, e As EventArgs)
        Application.Exit()
    End Sub

    Private Sub Btn_MaxMin_Click(sender As Object, e As EventArgs)
        If WindowState = FormWindowState.Normal Then
            WindowState = FormWindowState.Maximized
        Else
            WindowState = FormWindowState.Normal
        End If
    End Sub

    Private Sub Btn_Minimize_Click(sender As Object, e As EventArgs)
        WindowState = FormWindowState.Minimized
    End Sub
End Class

I tried Debugging and click events don't respond. I tried to rebuild solution and it doesn't work. I tried adding Refresh() after each line of code and doesn't work. I rechecked designer.vb and everything else and it doesn't work.

.NET 5.0 is broken when using Visual Basic WinForms. The code intellisense has become slow. Everything is slow and not working.

System Information

Product Version: Microsoft Visual Studio Community 2019 16.8.0

DotNET Framework: 5.0 (Released on 11 November 2020)

Operating System: Windows 10 20H2

Please help me fix these issues. No code provided because I don't know how will other devs reproduce these issues. I cannot find any similar problems in SO or anywhere else. I can't find any problem when using .NET 4.8 or other .NET versions other than 5.0 with WinForms and VB.

Upvotes: 0

Views: 244

Answers (1)

AwiringCameron
AwiringCameron

Reputation: 640

Looking at your button click event handler code, I see that there is no Handles Button1.Click.

In order for the code to run, it must be associated with the event by doing:

Private Sub Btn_Exit_Click(sender As Object, e As EventArgs) Handles btnExit.Click
    Application.Exit()
End Sub

Another option is:

Private Sub Form1_Load(sender as Object, e as EventArgs) Handles Me.Load
    AddHandler btnExit.Click, AddressOf Btn_Exit_Click        'run this somewhere when the form loads
End Sub

Private Sub Btn_Exit_Click(sender As Object, e As EventArgs)
    Application.Exit()
End Sub

If this is helpful, great. If not, provide more of your code so we can see what's all happening.

Regards

Upvotes: 2

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