How do check a string format?

[ceyhorn]

I'm trying to check to make sure the text box has a number in the format of: #####-##, or five digits a dash and then two digits. How would i do this.

Thanks in advance,
Chris

 

[Becks25Not]

You can use a Regular expression:

Imports System.Test.RegularExpressions

Dim myRegExp as New RegEx("\d{5}-\d{2}")
if myRefExp.IsMatch(txtMe.Text) then
'** Is good
else
'** Is NOT good
End If

 

[pzmgmb]

i concur with Becks25Not... utilize the regex tool.

Here is a tutorial utility for RegEx:

http://www.devhood.com/tools/tool_details.aspx?tool_id=717

 

[ceyhorn]

Thanks Beck, but the expression is always failing even with the correct format. Any ideas?

Thanks again,
Chris

 

[Becks25Not]

I just coped & tested, besides a few typos it worked for me.
Her's the "spell checked" code:

Imports System.Text.RegularExpressions
        Dim myRegExp As New Regex("\d{5}-\d{2}")
        If myRegExp.IsMatch(Me.txtRecordLength.Text) Then
            MsgBox("PASSED")
            '** Is good
        Else
            '** Is NOT good
            MsgBox("FAILED")
        End If