Calling a procedure from its non native form - vb.net

Question

Ok, so
frmResult populates a ListView with various calculations
frmMenu has an export button (see code below). Pressing this is supposed to export the data in the ListView to a txt file. Currently, this button does not work. It says, List View is undeclared - obviously because the code shown below is not 'seeing' data held in frmResult
Question – how do I call the procedures stored in frmResult so that frmMenu can 'see' it.
Public Sub btnExport_Click(sender As Object, e As EventArgs) Handles btnExport.Click
Dim fileSaved As Boolean
Dim filePath As String
Do Until fileSaved
'Request filename from user
Dim saveFile As String = InputBox("Enter a file name to save this message")
'Click Cancel to exit saving the work
If saveFile = "" Then Exit Sub
'
Dim docs As String = My.Computer.FileSystem.SpecialDirectories.MyDocuments
filePath = IO.Path.Combine(docs, "Visual Studio 2013\Projects", saveFile & ".txt")
fileSaved = True
If My.Computer.FileSystem.FileExists(filePath) Then
Dim msg As String = "File Already Exists. Do You Wish To Overwrite it?"
Dim style As MsgBoxStyle = MsgBoxStyle.YesNo Or MsgBoxStyle.DefaultButton2 Or MsgBoxStyle.Critical
fileSaved = (MsgBox(msg, style, "Warning") = MsgBoxResult.Yes)
End If
Loop
'the filePath String contains the path you want to save the file to.
Dim rtb As New RichTextBox
rtb.AppendText("Generation, Num Of Juveniles, Num of Adults, Num of Semiles, Total" & vbNewLine)
For Each saveitem As ListViewItem In ListView1.Items
rtb.AppendText(
saveitem.Text & ", " &
saveitem.SubItems(1).Text & ", " &
saveitem.SubItems(2).Text & ", " &
saveitem.SubItems(3).Text & ", " &
saveitem.SubItems(4).Text & vbNewLine)
Next
rtb.SaveFile(filePath, RichTextBoxStreamType.PlainText)
End Sub

Answer 1

Is this what you mean?
Public Sub Init()
'... (all the code)
End Sub
Private Sub Results_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Call Init()
End Sub
You can call Init() from every form load you want. Maybe you want to create a module and store there your methods.
By the way, you only use Function when your methods needs to return a value.
If your code uses elements of the form (or other objects not constant) you need to pass those to the method, like this:
Public Sub Init(myListView As ListView)
myListView.Items.Add("something")
'...
End Sub
Private Sub Results_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Call Init(ListView1)
End Sub
You can add as many parameters as you need. You have to learn the basics before going ant further.

Answer 2

This is a great piece of literature for those struggling with the basics like myself.
You can write code to access objects on a different form. However, you must fully identify the name of the object by preceding it with the object variable name.
Dim resultsForm As New frmResults
resultsForm.lblAverage.Text = sngAverage.ToString()
In these statements, for example, I have declared an object variable called resultsForm that is linked to the form frmResults. The second statement assigns the string value of sngAverage to the lblAverage label box on the frmResults form.
In my code, I needed to change the line that said:
For Each saveitem As ListViewItem In ListView1.Items
To this:
For Each saveitem As ListViewItem In Results.ListView1.Items
I also needed to make sure that the procedure on formResults was made Public not Private