?
Solved

Validating Masked Textboxes

Posted on 2008-10-12
3
Medium Priority
?
454 Views
Last Modified: 2012-05-05
Hi I'm using VB 2005, WinForms. I need to validate a Masked TextBox that I have on my Form, which is formatted for telephone numbers [i.e. (999) 000-0000]. If I try to determine the length of the textbox's text property using "myMaskedTextBox.Text.Trim.Length", I get a value of 10 on an empty phone number (empty meaning no numbers entered). I assume the masking characters are being considered as part of the overall length, so how do I count the number of actual "numbers" in the textbox? I need there to be a total of 10 valid digits in the field before it is accepted as a complete and accurate phone number.  

Any suggestions?

Thanks,
Fulano
If myMaskedTextBox.Text.Trim.Length < 10 Then
   Console.WriteLine("Not a valid phone number")
End If

Open in new window

0
Comment
Question by:Mr_Fulano
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 70

Accepted Solution

by:
Éric Moreau earned 2000 total points
ID: 22698878
set the TextMaskFormat property to ExcludePromptAndLiterals

see http://www.emoreau.com/Entries/Articles/2006/06/The-TextBox-and-the-MaskedTextbox-controls.aspx for details
0
 
LVL 48

Expert Comment

by:jpaulino
ID: 22698886
Hi Fulano,
You can use MaskCompleted to validate you field
If Me.MaskedTextBox1.MaskCompleted Then
    ' valid field
End If
0
 

Author Closing Comment

by:Mr_Fulano
ID: 31505489
Good suggestions. This is what I needed to do. - Thanks!
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

It’s quite interesting for me as I worked with Excel using vb.net for some time. Here are some topics which I know want to share with others whom this might help. First of all if you are working with Excel then you need to Download the Following …
The ECB site provides FX rates for major currencies since its inception in 1999 in the form of an XML feed. The files have the following format (reducted for brevity) (CODE) There are three files available HERE (http://www.ecb.europa.eu/stats/exch…
In this brief tutorial Pawel from AdRem Software explains how you can quickly find out which services are running on your network, or what are the IP addresses of servers responsible for each service. Software used is freeware NetCrunch Tools (https…
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…

719 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