Print entire array in a label

Question

How will I print an entire array in a label? I'm creating a CPU scheduling simulator using VB and I need to display all inputs for convenience.
I tried this:
Public Class CPUscheduling
'Declaring Variables
Dim i = 0
Dim arrival(i) As Integer
Dim burst(i) As Integer
Dim pCount(i) As Integer
'These are my arrays
''' CONDITIONING '''
Private Sub add_Click(sender As Object, e As EventArgs) Handles add.Click
'HERE IS WHERE I'M TRYING TO PRINT ARRAY VALUES TO LABEL WITH NO SUCCESS
arrival(i) = Val(arrivalTextbox.Text)
arrivalLabel.Text = arrival(i).ToString
arrivalTextbox.Clear()
'Outputs text from Arrival textbox to display then clears textbox contents
burst(i) = Val(burstTextbox.Text)
burstLabel.Text = arrival(i).ToString
burstTextbox.Clear()
'Outputs text from Burst textbox to display then clears textbox content
End Sub
End Class
But what happens is everytime I click "Add" button, it replaces the old values already displayed at the Label section. I want to have that continuous list effect.
Thank you! :)

Answer 1

Hi,
as a first step, enabling unnessary faults is not a good idea. Unfortunatelly, this is the default project setting, i.e. it is not your fault. Open the project properites, and on the "compile" tab, switch the Option Strict setting to "On".
You will have compile errors now because you don't treat data types appropriately. Choose the right data types for variables. If you need to perform conversions, be aware if the conversion can fail.
In addition, do not use the VB6 emulation layer with functions like Val(). To convert a String to an Integer value, call Integer.TryParse. As it's name says, it tries to parse the String. This is necesary because not every String can be interpreted as an
Integer value. TryParse  is a function. The return value is of type Boolean (True or False). It tells you if the conversion was successful. If yes, you can make the code continue execution, otherwise show a message box informing the user about the situation.
Regarding your question...: You can use the &-operator to concatenate two strings to a new string. So you can do with the text in the label and the one you want to add. However, are you sure that a label is the right place to show several inputs? For
showing multiple items, a Listbox is normally used.
Armin