input-validation

using spring validation on request headers

Is it possible to use the spring validation framework with Spring MVC to validate the presence/absence and value of an HTTP request header? Thanks! ...

Rails Validation | add class to surrounding <div>

Hi guys, Rails question. The default behavior for error validation is to fieldWithError-styled div around the input field like the following <div class="type-text" id="pre_negotiation_value_div"> <label for="contract_budget_holder">Budget Holder</label> <div class="fieldWithErrors"> <input id="contract_budget_holder"name="contract[bud...

jQuery UI datetimepicker and ASP.NET CompareValidator for DataTypeCheck

I'm using an ASP.NET textbox with the jQuery UI datepicker. The textbox allows edits so that the user can enter a date manually or clear an existing entry. I added a CompareValidator to perform a data type check on the textbox and this causes an error after selecting a date with the datepicker. The error occurs in the ASP.NET client side...

asp.net sanitizing user input

Does asp.net have a built in mechanism that can sanitize all textbox input instead of redirecting to the error page? I have a textbox input where a user can enter a name, but if they try to enter and <> tags the page automatically throws an error. I just want to handle this error in a user friendly way. ...

Validation to allow space for phone numbers

i have a validation in my .net textbox where it will take only numbers but when i put the the phone format like 080 234234 it will not accept because of a space how to resolve this ? could anyone help in regular expression ? Current expression is this [0-9]+ ...

Seam validation question - check for at least one field filled

I have a situation in my form that the user must fill at least one of the fields. Using "required" command, i cannot do that. What is the best way to validate this in seam ? i dont want to use javascript. Thanks! ...

Validating an input based on what is entered in another input - Rails

Hi all, I have a form that has a group of 3 text_fields. I need two of them filled to make calculations. quantity must always be filled. If price is blank, then cost must be filled, or vice versa. I tried this, but price is never nil, even though I leave it blank. I also tried :price == nil and :price.blank?, but they do the same thing...

In C++, can you manually set the failbit of a stream? How?

I am overloading the input stream operator for use with a Time class and would like to manually set the failbit of the input stream if the input doesn't match my expected time format (hh:mm). Can this be done? How? Thanks! ...

Long text input from user and PDF generation

I have built a web application that can be seen as an overcomplicated application form. There are bunch of text areas with a given character limit. After the form submission various things happen and one of them is PDF generation. The text is queried from the DB and inserted in the PDF template created in iReports. This works fine but t...

Struts2 Validation - No Validation on Input

Every tutorial I have found on Struts2 Declarative validation explains how to make the fields validated which is nice and easy. But how do you enter the page with out it being validated? I have the below Action mapped <package name="admin" namespace="/admin" extends="struts-default"> <action name="display_*" class="action.admin...

How to make sure input is a double in the C programming language

How do I make sure I've got a double and not something else? int main() { int flagOk = 0; double number; while(!flagOk) { printf("Put in a double"); scanf("%lf", &number); if(number == "%lf"); //this want make sure flagOk = 1; } } ...

Credit Card validation with Jquery

Hello , i'm trying to validate credit card numbers with jQuery but i dont want to use the validation plugin , is there any other plugin for doing this? thanks ...

javascript and regularexpression?

hi, i have a doubt that whether javascript expression is better or regularexpression is better. i mean for validation javascript is best or ?How it is different form each other? thank you. ...

C# validation of input

I am creating a short c# console program that will ask 10 addition questions using random numbers from 0-10. Then it tells the user how many correct or incorrect. I am trying to find a way to validate that my user input is a number and not a letter. I am posting the code I have created so far, but could use some help. using System; u...

Validating user input with JavaScript

I need to make it so a user can ONLY type a-z0-9 into my input box. How can I make it so the user simply cannot type other characters? If this isn't possible, how can I simply check the input with regex? Thanks! ...

What is a good way to process data from a form before applying business logic in PHP?

I think this is a common issue. Whenever there is a form on a web page, there is a PHP file on the back-end processing the data sent from the form. You start with $_POST, You need to ensure that the names of input elements are not falsified, increased or decreased, and you want to make sure that no input elements are left blank, and you...

(PHP) Validation, Security and Speed - Does my app have these?

Hi all, I am currently working on a building community website in PHP. This contains forms that a user can fill right from registration to lot of other functionality. I am not an Object-oriented guy, so I am using functions most of the time to handle my application. I know I have to learn OOPS, but currently need to develop this website ...

Using DataAnnotations for validation in MVVM

Hi, I've discovered the new data annotation features of SL3 and I'm using them for user input validation. I've got inputs like these: <dataInput:Label Target="{Binding ElementName=inputName}"/> <TextBox x:Name="inputName" Text="{Binding RequestDemoData.Name, Mode=TwoWay, Valid...

How to Regular Expression match not having a constant at the end of a string (.net validator)

The item referenced in this question does not seem to work for me. I'm using the Regular Expression validator in .net I need to pass validation if the input field does NOT look like this "bagdfsdf -CONST" When I use "(?>!-CONST)$" and ".*(?>!-CONST)$" the regular expression validator never allows it. If I have -CONST at the end or no...

PHP Regular Expression [accept selected characters only]

I want to accept a list of character as input from the user and reject the rest. I can accept a formatted string or find if a character/string is missing. But how I can accept only a set of character while reject all other characters. I would like to use preg_match to do this. e.g. Allowable characters are: a..z, A..Z, -, ’ ‘ User must ...