MS Access: Multi ListBox get values - vba

Question

I have a listbox on a form that contains 6 values. The user is allowed to select multiple values at once. For each value selected I want to assign this value to a variable.
My listbox is called: lstFilterUnits
The listbox contents are as follows:
Blue, Red, Green, Yellow, Orange, White
I understand that the following is associated with each colour:
Forms("Form1").lstFilterUnits.Selected(0) 'Blue Selected
Forms("Form1").lstFilterUnits.Selected(1) 'Red Selected
Forms("Form1").lstFilterUnits.Selected(2) 'Green Selected
Forms("Form1").lstFilterUnits.Selected(3) 'Yellow Selected
Forms("Form1").lstFilterUnits.Selected(4) 'Orange Selected
Forms("Form1").lstFilterUnits.Selected(5) 'White Selected
I have attempted to do this using the below code in the listbox on click event:
As you can see I had to hard code the value assigned to the vUnit variable as anytime I try get the value associated with the list box with either of the lines commented out it doesn't work.
Dim vUnit As String
If Forms("Form1").lstFilterUnits.Selected(0) = True Then
vUnit = "Blue
MsgBox (vUnit)
'MsgBox "You selected " & lstFilterUnits.Value 'Returns null value
'MsgBox "You selected " & lstFilterBusinessUnits.SelectedValue 'Returns Compile error
ElseIf Forms("Form1").lstFilterUnits.Selected(1) = True Then
vUnit = vUnit & ", Red'"
MsgBox (vUnit)
End If
So for the above code I can't seem to assign the value associated with the selected item to a variable. I also want to me able to display multiple values in the variable if they are selected, however if I select more than one value using the above method it will only go into the first if statement that is true, due to this I think I should be using some sort of a loop to assign the variable multiple values but I'm new to VBA and d not know how to do this.
Any help would be appreciated, I think this is probably a simple task that I am overthinking.
EDIT:
After searching online I finally found something that is kind of doing what I need. However the output is also outputting the index number of the listbox. The code I found is below. I've tried playing around with it but can't seem to achieve my desired output.
The below code will output the following:
'1 , 'Blue', '2 'Red', 3 ,'Green',
Whereas I want it to output:
'Blue','Red', 'Green',
Does anyone know how I can achieve this? I've tried changing the column to both only i and J and this didn't seem to work. I've never worked with arrays in VBA before so will admit I don't understand the code fully and the form I found it on didn't explain the code, it was just providing a solution for another user.
Dim i As Long
Dim J As Long
Dim Msg As String
Dim arrItems() As String
ReDim arrItems(0 To lstFilterUnits.ColumnCount - 1)
For J = 0 To lstFilterUnits.ListCount - 1
If lstFilterUnits.Selected(J) Then
For i = 0 To lstFilterUnits.ColumnCount - 1
arrItems(i) = lstFilterUnits.Column(i, J)
Next i
Msg = Msg & "'" & Join(arrItems, " , '") & "', "
End If
Next J
MsgBox Msg

Answer 1

Use the .ItemsSelected collection. It already has all the items.
EXAMPLE:
Sub Example()
dim ctl as Control
Set ctl = Forms("Form1").lstFilterUnits
Dim varItm As Variant
For Each varItm In ctl.ItemsSelected
Debug.Print ctl.ItemData(varItm)
Next varItm
End Sub
SOURCE: https://learn.microsoft.com/en-us/office/vba/api/access.listbox.itemsselected

Answer 2

Have a try on it.
Private Sub lstFilterUnits_Click()
Dim ctl As Control
Dim varItm As Variant
Dim SelectedColor As String
Set ctl = Forms!Form1!lstFilterUnits
For Each varItm In ctl.ItemsSelected
SelectedColor = SelectedColor & vbCrLf & ctl.ItemData(varItm) 'This for each color in each line
'SelectedColor = SelectedColor & "," & ctl.ItemData(varItm) ' This line for comma separated color
Next varItm
MsgBox SelectedColor
End Sub