Solved

VbScript form validation for phone number, outlook email address formats

Posted on 2003-12-01
1
2,195 Views
Last Modified: 2008-03-04
Hello,
I need some help regarding form validation of several items I have on a form.
Here is the pseudocode for the telephone format I want

if trim(request.querystring("tel")) does not fit the pattern (555) 555-5555 then     flag="error"
     response.write("Please enter a valid telephone number")
     response.write("<br>")
end if

Here is the pseudocode for the email format I want
*please note that the email I am checking for I only want to check that the address has a "," somewhere in the middle.

if trim(request.querystring("email")) does not fit the pattern AAA, AAA then     flag="error"
     response.write("Please enter a valid telephone number")
     response.write("<br>")
end if

thanks for all help
0
Comment
Question by:groovymonkey
1 Comment
 
LVL 8

Accepted Solution

by:
nishikanth earned 100 total points
Comment Utility
For email to check if there is a "," in the email

if InStr(Request.querystring("email"),"@")=0 then
response.write "Error"
end if

------------------------------------------------------------

to check if the phone no. is in proper format

Function CheckString(strToCheck, strRegExp)
  Dim re
  Set re = new RegExp

  re.IgnoreCase = false
  re.global = false
  re.Pattern = strRegExp

  CheckString = re.Test(strToCheck)
End Function

Dim strphone
strphone = Request.querystring("txtphone")

'Make sure it's in the format XXX-XX-XXXX (where each X is a digit)
If CheckString(strphone, "^\(\d{3}\) \d{3}\-\d{4}$") then
  'strphone is valid!
Else
  'strphone is NOT valid
End If


-----------------------------------------------------------
EASIER SOLUTION -
This code can format any phone number to (xxx) xxx-xxxx, this makes the job easier for user and for you. You give xxxxxxxxxx then it will return (xxx) xxx-xxxx

Function FormatPhoneNumber(strNumber)
      Dim strInput       ' String to hold our entered number
      Dim strTemp        ' Temporary string to hold our working text
      Dim strCurrentChar ' Var for storing each character for eval.
      Dim I                 ' Looping var
      
      ' Uppercase all characters for consistency
      strInput = UCase(strNumber)

      ' To be able to handle some pretty bad formatting we strip out
      ' all characters except for chars A to Z and digits 0 to 9
      ' before proceeding.  I left in the chars for stupid slogan
      ' numbers like 1-800-GET-CASH etc...
      For I = 1 To Len(strInput)
            strCurrentChar = Mid(strInput, I, 1)
            ' Numbers (0 to 9)
            If Asc("0") <= Asc(strCurrentChar) And Asc(strCurrentChar) <= Asc("9") Then
                  strTemp = strTemp & strCurrentChar
            End If
            ' Upper Case Chars (A to Z)
            If Asc("A") <= Asc(strCurrentChar) And Asc(strCurrentChar) <= Asc("Z") Then
                  strTemp = strTemp & strCurrentChar
            End If
      Next 'I
      
      ' Swap strTemp back to strInput for next set of validation
      ' I also clear strTemp just for good measure!
      strInput = strTemp
      strTemp = ""
      
      ' Remove leading 1 if applicable
      If Len(strInput) = 11 And Left(strInput, 1) = "1" Then
            strInput = Right(strInput, 10)
      End If
      
      ' Error catch to make sure strInput is proper length now that
      ' we've finished manipulating it.
      If Not Len(strInput) = 10 Then
            ' Handle errors as you see fit.  This script raises a real
            ' error so you can handle it like any other runtime error,
            ' but you could also pass an error back via the function's
            ' return value or just display a message... your choice!
            Err.Raise 1, "FormatPhoneNumber function", _
                  "The phone number to be formatted must be a valid 10 digit US phone number!"

            ' Two alternative error techniques!
            'Response.Write "<B>The phone number to be formatted must be a valid phone number!</B>"
            'Response.End

            ' Note if you use this you'll also need to check for
            ' this below so you don't overwrite it!
            'strTemp = "<B>The phone number to be formatted must be a valid phone number!</B>"
      End If
      
      ' If an error occurred then the rest of this won't get processed!

      ' Build the output string formatted to our liking!
      ' (xxx) xxx-xxxx
      strTemp = "("                             ' "("
      strTemp = strTemp & Left(strInput, 3)     ' Area code
      strTemp = strTemp & ") "                  ' ") "
      strTemp = strTemp & Mid(strInput, 4, 3)   ' Exchange
      strTemp = strTemp & "-"                   ' "-"
      strTemp = strTemp & Right(strInput, 4)    ' 4 digit part

      ' Set return value
      FormatPhoneNumber = strTemp
End Function

''''From asp 101 sample''''

0

Featured Post

Do You Know the 4 Main Threat Actor Types?

Do you know the main threat actor types? Most attackers fall into one of four categories, each with their own favored tactics, techniques, and procedures.

Join & Write a Comment

When trying to find the cause of a problem in VBA or VB6 it's often valuable to know what procedures were executed prior to the error. You can use the Call Stack for that but it is often inadequate because it may show procedures you aren't intereste…
If you have ever used Microsoft Word then you know that it has a good spell checker and it may have occurred to you that the ability to check spelling might be a nice piece of functionality to add to certain applications of yours. Well the code that…
As developers, we are not limited to the functions provided by the VBA language. In addition, we can call the functions that are part of the Windows operating system. These functions are part of the Windows API (Application Programming Interface). U…
Get people started with the utilization of class modules. Class modules can be a powerful tool in Microsoft Access. They allow you to create self-contained objects that encapsulate functionality. They can easily hide the complexity of a process from…

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now