Writing a code in access

Dim arrayname
  Dim  i As Long, field1 As String, field2 As String
  arrayname = Array("q", "w", "e", "r", "t", "y", "u", "i", "p", "a")
  field1 = "453"
  For i = 0 To Len(field1) - 1
    field2 = field2 + arrayname(i)
  Next
  MsgBox field2

I think sample has errors, but it can be corrected:

Dim arrayname
Dim i As Long, field1 As String, field2 As String
arrayname = Array("q", "w", "e", "r", "t", "y", "u", "i", "p", "a")
field1 = "453"
If IsNumeric(field1) Then
    field2 = ""
    For i = 1 To Len(field1)
        field2 = field2 + arrayname(CInt(Mid(field1, i, 1)))
    Next
    MsgBox field2
Else
    MsgBox "Non-numeric symbols entered: ", field1
End If

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thanks als315; I wasn't paying attention :-)

Let me start with an apology.  Please don't be offended.  I've been wanting to say this for some time and it looks like you have your answer so I'll just jump in.

Codes are limited lists of values - area codes, zip codes, department codes, etc.  Or an encrypted value.  During WWII, the British captured an enigma machine and with it were able to decipher the codes the Germans used to encrypt their messages.  "A" code is a member of a set of codes so 203 is the area code for most of Western Connecticut or "F" is the value for female in a list of gender codes, or "a" code could be the entire body of the tokens substituted for letters to encrypt a message.  The Germans used a different code for each day of the week.  So on Monday an "a" is coded as "t", on Tuesday it is "c", on Wednesday it is "x", etc.

Code is what a programmer writes. No article, no trailing s to make it plural.  It is singular and plural and never takes the article "a" although it can take the article "the".  We never say "a code" but we do say "the code".   A programmer might create "a" procedure or "a" function or "a" subroutine but he writes code.  Not "a" code, not "codes".  Just code.

Thanks guys... appreciate your help. I am sure it is my fault, but I can't get it to work properly. It keeps opening of dialogue box with just the "tyr". I would it to take whatever was in the raw1 field and write it in the code for the saved1. Also note... my students may be entering very long numbers, up to 20 digits long. Not sure if this will affect anything. Thanks for all the help! Pat... very interesting, thanks!

I am using the below code for my on click of the button.

Private Sub Command42_Click()

Dim arrayname
Dim i As Long, raw1 As String, saved1 As String
arrayname = Array("q", "w", "e", "r", "t", "y", "u", "i", "p", "a")
raw1 = "453"
If IsNumeric(raw1) Then
    saved1 = ""
    For i = 1 To Len(raw1)
        saved1 = saved1 + arrayname(CInt(Mid(raw1, i, 1)))
    Next
    MsgBox saved1
Else
    MsgBox "Non-numeric symbols entered: ", raw1
End If

Me.fldDateUpdated = Now()

End Sub

The problem was with your last message box.  You needed to concatenate raw1 using the &.
ConvertNum.accdb

I copied the code and pasted it into the database I sent to you and it works fine.

Does the code compile in your database?

Are you sure you are using the correct control names?

Do you realize that you accepted your own answer?

That's not good... No clue how I pulled that off. I'll try to fix it.

Thanks! I am an idiot... the table type of that cell was number. Changed to text and it works perfect. Thanks!

I am now going to post a question for a button what will take it out of the letters and back to numbers. Maybe you can help with it.  Thanks for everything this morning.

You accepted your own answer again.