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# Function to strip all other than numbers from a field

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## Function to strip all other than numbers from a field

(OP)
Hello I have a field InvoiceNumber

The invoice data sometimes has prefix or postfix - ie. eet3546 or ibb876373 or 2355456llk

I would like a function which removes everything and just leaves the numbers with no spaces or other characters.

Could someone help with this? I really can't seem to make progress with this.

Thanks Mark - Keep safe :)

### RE: Function to strip all other than numbers from a field

I am sure there is a better way, but ...

#### CODE

Option Explicit

Private Sub Command1_Click()
Dim str1 As String
Dim str2 As String
Dim str3 As String

str1 = "eet3546"
str2 = "ibb876373"
str3 = "2355456llk"

Debug.Print "The value of " & str1 & " is " & MyValue(str1)
Debug.Print "The value of " & str2 & " is " & MyValue(str2)
Debug.Print "The value of " & str3 & " is " & MyValue(str3)

End Sub

Private Function MyValue(ByRef str As String) As Long
Dim x As Integer
Dim strOut As String

For x = 1 To Len(str)
If IsNumeric(Mid(str, x, 1)) Then
strOut = strOut & Mid(str, x, 1)
End If
Next x

MyValue = CLng(strOut)

End Function 

You get:
The value of eet3546 is 3546
The value of ibb876373 is 876373
The value of 2355456llk is 2355456

---- Andy

There is a great need for a sarcasm font.

### RE: Function to strip all other than numbers from a field

(OP)
Thats great - thank you very much

Regards Mark

### RE: Function to strip all other than numbers from a field

(OP)
I have tested it - and it works well.

I notice it is fine if there is a 10 or less digit number, but it crashes if 11 digits or more.

Is there a way to fix that?

Thank you Mark

### RE: Function to strip all other than numbers from a field

That is because of the limit of Long.

You could modify the Function to:

#### CODE

Private Function MyValue(ByRef str As String) As Double
Dim x As Integer
Dim strOut As String

For x = 1 To Len(str)
If IsNumeric(Mid(str, x, 1)) Then
strOut = strOut & Mid(str, x, 1)
End If
Next x

MyValue = CDbl(strOut)

End Function 

But you may get back the huge number in scientific notation

You can simply do:

#### CODE

Private Function MyValue(ByRef str As String) As String
Dim x As Integer
Dim strOut As String

For x = 1 To Len(str)
If IsNumeric(Mid(str, x, 1)) Then
strOut = strOut & Mid(str, x, 1)
End If
Next x

MyValue = strOut

End Function 

and you get the String with just the digits (numbers)...

---- Andy

There is a great need for a sarcasm font.

### RE: Function to strip all other than numbers from a field

(OP)
Fantastic - thank you :)

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