How to validate an optional empty textbox, Is the data valid or not - its optional... -

Posted by msfanboy on Stack Overflow See other posts from Stack Overflow or by msfanboy
Published on 2010-05-29T09:04:42Z Indexed on 2010/05/29 9:12 UTC
Read the original article Hit count: 150

Filed under:

validation

|

input

|

user

|

field

|

optional

Today I asked myself how can I handle user input if the user have not to enter it...

A firstname and lastname is all he must enter. The adress he needs not to fill out.

Now I have to decide, is the missing data a user mistake or didn`t the user want to enter

data?

How can I deal with such a scenario?

© Stack Overflow or respective owner

Related posts about validation

How can I use Windows Workflow for validation of a Silverlight application?

as seen on Programmers - Search for 'Programmers'
I want to use Windows Workflow to provide a validation service. The validation that will be provided may have multiple tiers with chaining and redirecting to other stages of validation. The application that will generate the data for validation is a Silverlight app. I imagine the validation will… >>> More
HTML5 Form Validation

as seen on Stephen Walter - Search for 'Stephen Walter'
The latest versions of Google Chrome (16+), Mozilla Firefox (8+), and Internet Explorer (10+) all support HTML5 client-side validation. It is time to take HTML5 validation seriously. The purpose of the blog post is to describe how you can take advantage of HTML5 client-side validation regardless of… >>> More
HTML5 Form Validation

as seen on Stephen Walter - Search for 'Stephen Walter'
The latest versions of Google Chrome (16+), Mozilla Firefox (8+), and Internet Explorer (10+) all support HTML5 client-side validation. It is time to take HTML5 validation seriously. The purpose of the blog post is to describe how you can take advantage of HTML5 client-side validation regardless of… >>> More
Introducing Data Annotations Extensions

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
Validation of user input is integral to building a modern web application, and ASP.NET MVC offers us a way to enforce business rules on both the client and server using Model Validation. The recent release of ASP.NET MVC 3 has improved these offerings on the client side by introducing an unobtrusive… >>> More
jQuery validation per multiple fieldsets, how to use different event to trigger validation per secti

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi All! I have a really, really long form (about 300 fields) that I broke down into different sections using this slick jQuery plugin Form Wizard. If you group your form into different fieldsets, the FormWizard will automagically display one section at a time, with a Next hyperlink to take you to… >>> More

Related posts about input

Twitter Bootstrap styling conflicts with plug-ins like jqGrid and other third part libraries

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
Issues:The concern is that the Twitter Bootstrap framework is that some of their css selectors are simply too generic and have incompatibility issues and conflicts with most third party plug-ins and css libraries, like jQuery-UI and jqGrid.My most pressing concern is only with the generic selector… >>> More
HTML text input and using the input as a variable in a script(tcl)/sql(sqlite)

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello all, I'm very VERY new at this whole web thing. And I'm just very confused in general. Basically, what I want to do is take an input via text using HTML and adding that input to database, table trans. Should be simple but I am lost. <li>Transaction Number</li> <li><input… >>> More
A quiz with results

as seen on Programmers - Search for 'Programmers'
I'm currently working on programming a quiz withe results. I've tried this: <html> <body> <h1></h1> <form> <ol> <li> How much are you willing to spend on a phone per month?</li> <ul> <li><input type = "radio" name = "q1" id="q1_1">… >>> More
How to change SMP affinity of an IRQ on Ubuntu domU inside Xen XCP?

as seen on Server Fault - Search for 'Server Fault'
I'd like to change IRQ SMP affinity for reasons, outlined in this question: CPU0 is swamped with eth1 interrupts But I can't — I see Input/output error when I try to write to /proc/irq/*/smp_affinity. Please point me to the HOWTO on the matter. (A formal reference on /proc/irq/*/ would be cool as… >>> More
How do I fix a corrupted harddrive after failed upgrade?

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
The problem originated when I was trying to fix this problem. Things went horribly, horribly wrong and I ended up with a new problem altogether. The last thing I did was run sudo apt-get install and that caused my system to freeze. I restarted my computer and it would not boot from the harddrive… >>> More