when and how best to give feedback to users about invalid entries in data they have provided.

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-2
votes
3answers
51 views

Why do websites disallow the plus sign in e-mails [on hold]

This question was covered under the security site where it was determined that there is no security implications for allowing + signs in e-mail addresses, so I would like to ask from the UX point of ...
0
votes
1answer
52 views

Validating a Preferences/Configuration “app”

I have a system configuration / preferences "app" I'm designing as part of a larger browser-based application. Our overall application has "apps" (like a development app, a user management app, a ...
1
vote
1answer
69 views

Handling bad input in an autocomplete

Due to browser compatibility reasons and some issues with specific forms, in one of the products I'm working on we included a custom control for autocompletion of the Recipient field of an email ...
3
votes
3answers
62 views

How much information should you show the user when his input is invalid?

Assume you have a website that makes several checks on user-generated input. A few examples example from my current assignment: the Belgian version of an SSN is validated using the user date of ...
1
vote
1answer
59 views

Would it be bad to display missing fields before the user clicks submit?

Imagine a form where the user has some required fields, and after scrolling down a way hits the "submit" button. On most forms I've seen, trying to submit with missing required fields will trigger ...
81
votes
17answers
16k views

What is best practice for designing form error messages?

I've seen quite a lot of research on form design, but so far, I haven't come across any studies on error message design best practices. The only piece of advice seems to be that each error should ...
0
votes
3answers
228 views

Error message for “Invalid Username”

As per "UX guidelines" what should be the error message for a dimmpley Login for having 2 basic fields "Username" & Password. So if a User Enter a username with "Space or special ...
22
votes
4answers
3k views

Character limits on fields - pros and cons and best practices?

Some of our form fields have character limits. We're debating whether we should reflect the current size of data entry, or to simply hard-limit and inhibit data entry beyond that size. In HTML, ...
2
votes
2answers
104 views

Should we allow special characters or numbers in name field?

I need a generic validation for first and last name field that will be used everywhere. Currently I'm using: /^[A-Za-z]?[A-Za-z ]*$/
31
votes
12answers
3k views

How to clearly state to the User what characters are valid

I'm trying to determine the best way to inform the User that an input accepts certain special characters. Alphanumerics are simple enough, but I feel like I'm losing clarity when I get to characters ...
0
votes
3answers
38 views

Should I support legacy input formats past the transition period in a newly designed application?

We're currently working on a new product that extends a 3rd party product. The product needs to store the bank account number of employees. The product is aimed at Belgian enterprises, and since ...
0
votes
3answers
144 views

force a user to fill out a check box so they don't skip the question

I have a form which asks: Are you, or is anyone in your household employed in the following areas? Healthcare Manufacturing Media etc. This would of course be check boxes, but my client is ...
5
votes
2answers
114 views

Inline validation icon usability

I have been looking at the styling for validation of input forms of Bootstrap, and wondered if there was a specific reason for where the icons used for inline input validation is positioned. I ...
10
votes
5answers
700 views

Progressive Validation and Disclosure

I am trying to find an example of progressive validation. We have a UI for a a visual editor where a user does things like indicate dimensions in pixels or percent. The editor properties are in sets ...
1
vote
1answer
202 views

When can we stop assuming that a 2 digit year starts with 19

If the user inputs only 2 digits, should I assume that they mean 19XX? I have inline validation that validates a given range (eg 1900 - 2014), but if they type in 13, does it mean 2013 or 1913. Some ...
1
vote
2answers
138 views

Mobile: Text Field Hint best practices

On our desktop website we have a registration form. The registration for when entered provides the user with a field hint with further information on the field and any special requirements (password ...
1
vote
1answer
108 views

Why do so many forms use input masks in for input fields?

To be honest, I find input masks annoying. Different masks on different sites sometimes work differently, such that their behavior unpredictable and it actually makes me take more time to type out ...
3
votes
4answers
229 views

How to deal with superfluous numbers in input text fields?

I'm working on input textfields for lab assistants, e.g. a textfield to enter a temperature value (in a custom designed UI, not a web-site). Users don't have to enter the Celsius or Fahrenheit unit, ...
12
votes
4answers
692 views

Text Field Validation vs Prevention

I've been having a debate (mostly with myself) over the best approach to deal with invalid input in text fields -- validation versus prevention. Taking a numeric text field as an example, is it ...
5
votes
2answers
203 views

“soft” error messaging. Is that a thing? Precedence?

We're on a project where the concept of a 'soft' error for a web form came up. It's an interesting idea, but I can't actually think of an example of it being used in the past, so perhaps it's not a ...
6
votes
5answers
1k views

Where is the best place to show validation/error messages in a form? [duplicate]

Where is the best place to show validation/error messages in a form? Beside a field? underneath a field? Reserve an area on the top/bottom of the page, and show any error/successful message there?
2
votes
3answers
136 views

How to present a form where all fields are optional but at least one must be filled out

I have a form like this: The user must fill in the first or third field. They can also fill out two fields or all fields. Essentially they need to provide a link or comment for the form to submit. ...
1
vote
1answer
48 views

How should I formulate a validation error message for a number field?

How should I formulate a validation error message for a number field? A number is expected. A number is required. The value should be a number. Number is not valid. Invalid number. Value is not a ...
1
vote
3answers
130 views

For landing page A/B testing, how do you recruit from a niche market?

I'm currently working with a client that has not launched the full website yet, but is A/B testing ads to drive member acquisition. The ads direct users to a landing page that collects user e-mails. ...
1
vote
1answer
61 views

Validations across multipage form

I have a quite complicated, multi-page form within my ruby on rails application (built with wicked gem). My model have two fields which are being validated against each other - date_of_birth and ...
1
vote
1answer
171 views

Best way to integrate validation errors and hints into web form

I'm creating a web form and have followed the best practices laid out here and on other UX sites so far. The one decision I still have to make is regarding the display of error messages and input ...
2
votes
2answers
74 views

How Should Mobile Validation be Designed?

While designing the front-end for a responsive website project I came upon an issue dealing with displaying validation on mobile. In past un-responsive practices, if an input was required a little ...
1
vote
2answers
198 views

Best placement for validation-summary in a form

I'm designing several forms for a web application. Non-validating fields are marked red, and we show the messages in a validation summary. We wonder: what would be the best placement for the ...
1
vote
3answers
113 views

Whether the security verification code in sign-up form is user-friendly? [duplicate]

Am redesigning my sign-up form, some users feel bored with filling security field. Is really the Security verification code is user-friendly?
3
votes
3answers
240 views

Validation on complex forms

I have a complex web form in CMS which consists of: few tabs; different elements on each tab; properties pane; components pane. The problem with validation is that not all UI elements are displayed at ...
1
vote
2answers
130 views

What language/wording is best to indicate the max character count on a text box has been exceeded?

Scenario After a user attempts to submit a form I am providing validation messages against any invalid fields. On one of those fields the user has gone over the max allowed character count. Example ...
5
votes
7answers
654 views

Should we use “please” for validation messages for e-commerce applications

When we build an e-commerce application (most probably a web application), input validation is one of the core concepts of these type of applications. When the validation fails, we need to provide a ...
8
votes
3answers
279 views

Validation message review about using ! and using short, direct messages

Is is appropriate to put '!' at the end of validation message? It is good to use short and direct message such as "xxx required" or "Enter xxx" right ?
22
votes
8answers
3k views

Mark or don't mark required fields if all are required?

If all fields in a form are required should they be marked somehow (eg. with an asterisk)? I see this done a lot and find it redundant? There could be a difference in big forms and small forms, but ...
0
votes
3answers
153 views

Should I validate input if I don't care?

I am developing an application where a user will store arbitrary key-value pairs. The value is of no interest to the application, as it will merely be stored and returned at a later moment. The user ...
8
votes
3answers
9k views

What should be maximum and minimum length of persons User Name & Password? [closed]

I am wondering because I am trying to make sure that person have right amount of spaces for their user name. User Name and Password are security measures and should not be easy to guess. I have fixed ...
1
vote
1answer
97 views

Multivalued form field and validation for empty values

I am designing a dynamic form with multivalued field (with the famous "Add another value" button). My question concerns the validation of this type of fields : Should blank values be blocking (the ...
-2
votes
1answer
3k views

Form validation best practice using Twitter Bootstrap when input fields close each other

I am programmer not designer nor ux designer. So, I am using Twitter Bootstrap framework for design the page with input elements on it. Basic requirement for my form is - It should fit into 1024x768 ...
4
votes
2answers
195 views

Best practices for data file upload error handling

I am currently revisiting a data upload field in our system. These files (csv, xlsx) contain thousands of rows, which can produce hundreds of errors. Currently, the way we handle this is to spit out a ...
7
votes
2answers
324 views

Validate on blur or keypress?

Is it better to give the user instant feedback that a field is invalid on keypress, or should you wait until they blur the field? The first option might annoy users if they are told their input is ...
4
votes
1answer
413 views

For non-special-character textbox, should I use inline validating message or block users from inputing invalid characters?

I have one textbox that means to allow no special characters. Now, I have to choose below approaches: Display inline validating message say something like "char * is not allowed" (A) or "Your input ...
0
votes
1answer
232 views

tooltip form field validation

I have an e-commerce site and in the payment page, where the visitor enters their address and payment details, I use a tooltip for each field. e.g. "(required) Please enter your first and last name" ...
3
votes
2answers
136 views

What is the right way and time to signal validation problems to the user?

I'm developing a GUI-based desktop application. In one dialog, the user can enter a couple of numeric values. The set of values must always pass certain validity checks. As an example, suppose ...
2
votes
3answers
129 views

What are the best options to show huge number of errors on multiple paginated list

We have a business application where users edit participants' payroll information across multiple income sources in a single list. A list would have - around 200 participants - each participant ...
1
vote
3answers
176 views

Multiple Page Forms: Validate on every page or only on the last page?

We have a form that spans 3 pages (has steps 1 to 3). Currently, we allow them to skip required data because they may want to do Step 2 first before they feel like filling out Step 1 form. Our forms ...
1
vote
1answer
218 views

How should one phrase validation error messages?

What is the best phrase to use considering that these are short error messages that is positioned right beside the labels / input they are referring to. For example, there's a missing email address, ...
15
votes
7answers
631 views

How the user should be informed that the file she submitted is not an image?

In a given web application, the user can upload images. Currently, when the user uploads something which is not an image, the JavaScript alert box with the message "Please Select only Image Files!!" ...
1
vote
4answers
326 views

Phone number Entry question

We are using 4 fields for phone number entry. We are supposed to support international phone numbers. Country_code1, Area_code1, Main_Phone, Extension1 We default and hide the country code field ...
2
votes
4answers
266 views

When registering should the passwords match/don't match still be shown if the initial password isn't strong enough

In a registration page the user is asked to enter a password. There are some (simple) rules for the password, so if the user enters "123" the text "password is too simple" will appear beside the input ...
3
votes
1answer
4k views

Required field validation error message – Next to field vs. in a Popup

In our application, we mark all the required fields with an asterisk and when user tries to perform an action without providing values for all the required fields, we display an error message next to ...