Block off buttons until specific button is pressed - vb.net

Question

So, I'm still learning Visual Basic so I'm not entirely sure what I should be searching for however I've just been given a task to make a cash machine simulation, nothing that I can submit for coursework it's just for fun. However I'm trying to find out how to block out any buttons until a button prior to it is pressed. For example, I have a button that simulates entering your credit card and then a progress bar. However, I want the buttons 1 - 9 to be blocked until the progress bar has finished. My current code is:
Public Class Form1
Private Sub btn1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn1.Click
txtNumber.Text = txtNumber.Text & "1"
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
barProgress.Increment(5)
If barProgress.Value = 100 Then
MsgBox("Please insert your pin into our secure system.")
End If
End Sub
Private Sub btnInsertCard_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnInsertCard.Click
Timer1.Start()
If btnInsertCard.Text = "Insert Your Card" Then
btnInsertCard.Text = "Please wait.."
End If
End Sub
Private Sub btn2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn2.Click
txtNumber.Text = txtNumber.Text & "2"
End Sub
Private Sub btn3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn3.Click
txtNumber.Text = txtNumber.Text & "3"
End Sub
Private Sub btn4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn4.Click
txtNumber.Text = txtNumber.Text & "4"
End Sub
Private Sub btn5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn5.Click
txtNumber.Text = txtNumber.Text & "5"
End Sub
Private Sub btn6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn6.Click
txtNumber.Text = txtNumber.Text & "6"
End Sub
Private Sub btn7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn7.Click
txtNumber.Text = txtNumber.Text & "7"
End Sub
Private Sub btn8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn8.Click
txtNumber.Text = txtNumber.Text & "8"
End Sub
Private Sub btn9_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn9.Click
txtNumber.Text = txtNumber.Text & "9"
End Sub
Private Sub btn0_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn0.Click
txtNumber.Text = txtNumber.Text & "0"
End Sub
Private Sub btnClear_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnClear.Click
txtNumber.Clear()
End Sub
End Class
Any help would be appreciated!

Answer 1

I think what you're wanting to use is the .Enabled property.
In the Form1_Load I'm setting the .Enabled property for all of the buttons to False.
Once the barProgress.Value = 100 I stop the timer and enable the first button.
Then in the click event for each button I set the .Enabled property for the next button to True.
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim buttonArray = {btn1, btn2, btn3, btn4, btn5, btn6, btn7, btn8, btn9, btn0}
For Each button In buttonArray
button.Enabled = False
Next
End Sub
Private Sub btn1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn1.Click
txtNumber.Text = txtNumber.Text & "1"
btn2.Enabled = True
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
barProgress.Increment(5)
If barProgress.Value = 100 Then
Timer1.Stop()
btn1.Enabled = True
MsgBox("Please insert your pin into our secure system.")
End If
End Sub
Private Sub btnInsertCard_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnInsertCard.Click
Timer1.Start()
If btnInsertCard.Text = "Insert Your Card" Then
btnInsertCard.Text = "Please wait.."
End If
End Sub
Private Sub btn2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn2.Click
txtNumber.Text = txtNumber.Text & "2"
btn3.Enabled = True
End Sub
Private Sub btn3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn3.Click
txtNumber.Text = txtNumber.Text & "3"
btn4.Enabled = True
End Sub
Private Sub btn4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn4.Click
txtNumber.Text = txtNumber.Text & "4"
btn5.Enabled = True
End Sub
Private Sub btn5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn5.Click
txtNumber.Text = txtNumber.Text & "5"
btn6.Enabled = True
End Sub
Private Sub btn6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn6.Click
txtNumber.Text = txtNumber.Text & "6"
btn7.Enabled = True
End Sub
Private Sub btn7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn7.Click
txtNumber.Text = txtNumber.Text & "7"
btn8.Enabled = True
End Sub
Private Sub btn8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn8.Click
txtNumber.Text = txtNumber.Text & "8"
btn9.Enabled = True
End Sub
Private Sub btn9_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn9.Click
txtNumber.Text = txtNumber.Text & "9"
btn0.Enabled = True
End Sub
Private Sub btn0_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn0.Click
txtNumber.Text = txtNumber.Text & "0"
End Sub
Private Sub btnClear_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnClear.Click
'txtNumber.Clear()
txtNumber.Text = Nothing
End Sub
End Class
*Edit - Sorry I read your question wrong somehow. Corrected my answer.