I have a form that has a start button (to allow users to run the processes over and over if they wish), and I want to send a btnStart.Click
event when the form loads, so that the processes start automatically.
I have the following function for the btnStart.Click
event, but how do I actually tell Visual Basic 'Pretend someone has clicked the button and fire this event'?
I've tried going very simple, which essentially works. However, Visual Studio gives me a warning Variable 'sender' is used before it has been assigned a value
, so I'm guessing this is not really the way to do it:
Dim sender As Object
btnStart_Click(sender, New EventArgs())
I have also tried using RaiseEvent btnStart.Click
, but that gives the following error:
'btnStart' is not an event of 'MyProject.MyFormClass
Code
Imports System.ComponentModel
Partial Public Class frmProgress
Private bw As BackgroundWorker = New BackgroundWorker
Public Sub New()
InitializeComponent()
' Set up the BackgroundWorker
bw.WorkerReportsProgress = True
bw.WorkerSupportsCancellation = True
AddHandler bw.DoWork, AddressOf bw_DoWork
AddHandler bw.ProgressChanged, AddressOf bw_ProgressChanged
AddHandler bw.RunWorkerCompleted, AddressOf bw_RunWorkerCompleted
' Fire the 'btnStart.click' event when the form loads
Dim sender As Object
btnStart_Click(sender, New EventArgs())
End Sub
Private Sub btnStart_Click(sender As Object, e As EventArgs) Handles btnStart.Click
If Not bw.IsBusy = True Then
' Enable the 'More >>' button on the form, as there will now be details for users to view
Me.btnMore.Enabled = True
' Update the form control settings so that they correctly formatted when the processing starts
set_form_on_start()
bw.RunWorkerAsync()
End If
End Sub
' Other functions exist here
End Class