[2005] Check field for Str Value

Hey Guys,

I have a textbox that I am using as a contact number field. I want to do a check to see if it contains any characters but I want to allow spaces

Cheers

Dan

Hi, you can use, txtbox1_keypress to catch what keys are been wrote in txtbox1, here's a little sample

VB Code:

Private Sub txtbox1_KeyPress(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtbox1.KeyPress
        'This is the enter key, but you can also keys.enter
        If e.KeyChar = Chr(13) Then
            'do what ever
        end if
end sub

Redmo

You can use regex to check for a valid phone number

VB Code:

Imports System.Text.RegularExpressions
Public Class Form1
 
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim regexp As New Regex("^\(?\d{3}\)?[\s|-]?\d{3}[\s|-]?\d{4}$")
 
        If regexp.IsMatch(Me.TextBox1.Text) Then
            MsgBox("Valid Phone Number")
        Else
            MsgBox("Invalid Phone Number")
        End If
    End Sub
End Class

This will allow phone numbers with spaces or dashes or no spaces and also allows Parentheses around the area code
If you only want to allow spaces, change it to
^\d{3}[\s]?\d{3}[\s]?\d{4}$ -This will allow a 10 digit number with or without spaces

Thanks for you suggestions

I have done this instead and it seems fine

VB Code:

tmpStr = txFax1.Text
            For i = 1 To tmpStr.Length - 1
                If Not IsNumeric(tmpStr.Chars(i)) Then
                    msgbox "Fax_1 Number field contains a invalid character"
                    Exit For
                End If
            Next

Thanks for help

Cheers

Dan

Quote:

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Originally Posted by drawlings

Thanks for you suggestions

I have done this instead and it seems fine

VB Code:

tmpStr = txFax1.Text
            For i = 1 To tmpStr.Length - 1
                If Not IsNumeric(tmpStr.Chars(i)) Then
                    msgbox "Fax_1 Number field contains a invalid character"
                    Exit For
                End If
            Next

Thanks for help

Cheers

Dan

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This will work as long as the entered text doesn't contain anything but numbers... No spaces, no dash, no parenthesis... However, I noticed the requirement in your original post is to allow spaces

Quote:

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I want to do a check to see if it contains any characters but I want to allow spaces

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