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

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3
votes
2answers
214 views

Best practice for desktop application input validation

I've been reading through some of the other questions tagged with validation and similar. We have a Windows desktop application that has many textboxes contained in a dialog that need to be validated, ...
31
votes
11answers
4k views

Make user aware that he cannot enter arbitrary values into textbox?

In my current web project I have a textbox where the user can enter a bid for an auction. However, to prevent bidding of arbitrary sums, only certain values that match predetermined intervals are ...
0
votes
1answer
93 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
2answers
56 views

Validation message when only one thing can go wrong

We have a very simple form overlay for adding items (let's say cars) to a list. There can only be one error, which is to enter a duplicate car name. We've had a rather split opinion on the team as ...
0
votes
1answer
42 views

How 'similar' should names be to qualify as possible duplicates?

This is with reference to this question about possible duplicates. The question now arises is, how similar should these names be to mark them as possible duplicates? For example, Rajan Electricals ...
0
votes
2answers
110 views

How do you design UI with multiple forms within a table?

My current UI: Notable points: gray row(s) including the input fields on the left, and the Save button towards the right, are part of a single form. Del button on the right is a form entire ...
0
votes
1answer
29 views

Best way to display contextual user entry errors in a tabbed html form

I have a web application that has a very large form. That form is split into several tabbed areas, which divide the entry of the data in to logical blocks. I have a single submit button outside the ...
0
votes
1answer
21 views

Error message for “already submitted” in signup form

Consider a simple email signup for reference. Is it necessary to inform the user they've already submitted their email so long as the initial submission was a success and the server identifies and ...
2
votes
2answers
42 views

When should I prompt the user for duplicates entries?

We found a peculiar problem in our users when they enter their data. They tend to enter similar entries sometimes. I'll cite an example here. If there is a customer with the name ABC Electric ...
0
votes
2answers
31 views

Validating Fields for Repeating Data (Enterprise Solution)

It has been educational to read solutions on here and I was wondering if you guys can help me out as well. I work for a data collection heavy enterprise solution company. I am slowly convincing my ...
0
votes
1answer
161 views

floating versus inline alerts

I personally am a fan of floating alerts such as Toasts. I am thinking of using them for the form validation and feedback. I find the inline movement of content terrible, though it seems to be the ...
1
vote
1answer
168 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 ...
0
votes
1answer
55 views

Notifying users of incomplete data in hidden fields when moving orders from draft to submitted

Our website allows for submitting orders that are incomplete (drafts). Note that this is different from having invalid formatted data or what have you. When the user is ready to actually submit an ...
1
vote
5answers
59 views

Which user input validation approach is better: preventing or explaining? [duplicate]

Scenario: let's say we are talking about a simple form, which contains the following field types: All fields are mandatory. Number: only digits are allowed. Text: text must not exceed the maximum ...
1
vote
3answers
104 views

Should ZIP/postal codes be mandatory on web-forms? [duplicate]

Given that many jurisdictions (including my own) don't use postal codes, should the ZIP/postal codes be mandatory on web-forms? Additional info: I'm a web developer building ecommerce sites, and ...
0
votes
3answers
97 views

When should I validate that the password in a confirmation field matches the first password entered?

If a user creation page has a field where you are asked to re-enter your password, when should the page validate that the second password matches the first? I do not have control over whether or not ...
4
votes
2answers
173 views

What's better UX: Letting users completing a form with errors marked inline? Or, block the rest of the form as soon as there´s a wrong field?

I'm using inline validation (on blur) as soon as the user clicks/tabs another field. Is it good to block the rest of the fields (previous and following) when a field is validated? The case is: ...
0
votes
1answer
42 views

displaying required field indicators based on action

One of my requirements is to let the users know which fields they are required to fill before they can take an action. The users can take one of three actions save, submit or approve and the required ...
0
votes
2answers
153 views

Bad error message for required field: “Please enter value”

I just watched someone struggle with a form. The form was part of a normal online shop. It had reloaded after submitting, annotating the required field for the phone number with a red text above, ...
0
votes
3answers
100 views

Textfield validation - persist, ignore, correct or delete?

I'm working on a desktop application that has text fields and other form elements scattered on various pages. A global save button saves all inputs from all pages. Since the textfield format/error ...
8
votes
4answers
881 views

Field that doesn't allow spaces - giving correct feedback

On our mobile app's login screen we have three fields, the last of which is used to build up a URL. Since spaces isn't a good idea for the hostname part of a URL the user input must be sanitized ...
0
votes
2answers
97 views

Types of tool tips [closed]

I'm designing a checkout flow for an e commerce website and I need to come up with a set 3 kind of tool tips. while they will look similar they will have variations for the following for providing ...
34
votes
9answers
8k views

Is a confirm email address field still considered a best practice?

Having an input field to confirm an email address is pretty standard. However, I would like to know if using a confirm email address field still considered a best practice. The Email/Confirm email ...
1
vote
1answer
132 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 ...
35
votes
4answers
3k views

Should I empty the wrongly filled fields or leave as user has filled after validation message?

In our mobile applications (intended for Android and iOS platforms), we have fields that should be filled by users. If the user fills the field not in required format what should I do show the ...
-2
votes
3answers
65 views

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

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 ...
3
votes
3answers
83 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 ...
89
votes
17answers
21k 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
400 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 ...
23
votes
4answers
4k 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
319 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
44 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
160 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
263 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
769 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
218 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
242 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 ...
2
votes
1answer
240 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
268 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
847 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
261 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 ...
7
votes
5answers
3k 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
156 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
85 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
136 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
78 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
225 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
111 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
275 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 ...