VB Snippet - Finding which controls in an array are loaded

This is an example of how to determine which controls in an array are loaded. This particular snippet works for a picturebox array called picture1.

VB Code:

Dim pic As PictureBox
Dim strLoaded As String
 
Private Sub Form_Load()
    For Each pic In Picture1
        a = pic.Index
        strLoaded = strLoaded & a & ","
    Next
    strLoaded = Left(strLoaded, Len(strLoaded) - 1)
    
    'strLoaded returns the indexes of each loaded control in the array delimited with commas.
    MsgBox strLoaded
End Sub