Recent questions tagged validation

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validation - Are nested HTML comments possible?

as per the title; is it possible to have nested comments in valid HTML? see the example below... <p>some ... could get nested comments to work? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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894 views

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validation - only allow children of a specific type in a react component

I have a Card component and a CardGroup component, and I'd like to throw an error when CardGroup has children ... to solve the wrong problem? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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validation - How to force MVC to Validate IValidatableObject

It seems that when MVC validates a Model that it runs through the DataAnnotation attributes (like required, or ... the other validation fails? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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validation - How can I manually set an Angular form field as invalid?

I am working on a login form and if the user enters invalid credentials we want to mark both the email and ... to display their invalid state. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.3k views

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validation - What is the best way to validate a credit card in PHP?

Given a credit card number and no additional information, what is the best way in PHP to determine whether or ... also work with other types. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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871 views

1 answer

validation - How to sanity check a date in Java

I find it curious that the most obvious way to create Date objects in Java has been deprecated and appears to ... would be an invalid date. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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907 views

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validation - How to check whether a file is valid UTF-8?

I'm processing some data files that are supposed to be valid UTF-8 but aren't, which causes the parser (not ... I can make part of my data loading process. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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876 views

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validation - How do you do dynamic / dependent drop downs in Google Sheets?

How do you get a sub-category column to populate a drop down based on the value selected in the main category ... share my own. Please see my answer below. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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830 views

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validation - Is there a way in Java to determine if a path is valid without attempting to create a file?

I need to determine if a user-supplied string is a valid file path (i.e., if createNewFile() will succeed ... a more elegant way of achieving the same result. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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989 views

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validation - How to check for a valid URL in Java?

What is the best way to check if a URL is valid in Java? If tried to call new URL(urlString) and catch a ... http://*** and http://my favorite site!. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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889 views

1 answer

validation - In C# check that filename is *possibly* valid (not that it exists)

This question already has answers here: Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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validation - How to add debounce time to an async validator in angular 2?

This is my Async Validator it doesn't have a debounce time, how can I add it? static emailExist(_signupService:SignupService) ... {emailExist: true}); }) }) } } Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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validation - Force JSF to process, validate and update readonly/disabled input components anyway

I am creating a calculator where a user can do the various operations by clicking on virtual numpad. Now I ... we have any such restrictions available in jsf? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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892 views

1 answer

validation - How to validate date with format "mm/dd/yyyy" in JavaScript?

I want to validate the date format on an input using the format mm/dd/yyyy. I found below codes in one site ... ; } } Any suggestion about what could be wrong? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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892 views

1 answer

validation - Validating email addresses using jQuery and regex

I'm not too sure how to do this. I need to validate email addresses using regex with something like this: ... does the validation go and what is the expression? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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757 views

1 answer

validation - Do I really need to encode '&' as '&'?

I'm using an '&' symbol with HTML5 and UTF-8 in my site's <title>. Google shows the ampersand fine on its ... s opinions on this and if it's important and why. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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validation - Min / Max Validator in Angular 2 Final

According to thoughtgram.io, the currently supported validators are: required minlength maxlength pattern So, considering ... need to build a custom validator? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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940 views

1 answer

validation - Using JQuery Validate Plugin to validate multiple form fields with identical names

I have a dynamically generated form with input fields with the same name (for example: "map"). I do not have ... plugin here too. Thank you for your attention. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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896 views

1 answer

validation - Validating URL in Java

I wanted to know if there is any standard APIs in Java to validate a given URL? I want to check both if the ... no success. Let me know what I am doing wrong. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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828 views

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validation - How to check file types of uploaded files in PHP?

On the PHP website, the only real checking they suggest is using is_uploaded_file() or move_uploaded_file(), here. ... file type, what other options are there? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.0k views

1 answer

validation - jQuery Validate - require at least one field in a group to be filled

I'm using the excellent jQuery Validate Plugin to validate some forms. On one form, I need to ensure that the ... added to jQuery Validation on 4/3/2012. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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982 views

1 answer

validation - What is ModelState.IsValid valid for in ASP.NET MVC in NerdDinner?

On the NerdDinner example of Professional ASP.NET MVC 1.0 there's a method to create a new dinner as copied bellow ... ()); } } return View(dinner); } Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

validation - Javascript: how to validate dates in format MM-DD-YYYY?

I saw a potential answer here but that was for YYYY-MM-DD: JavaScript date validation I modified the code code ... -YYYY and better yet MM/DD/YYYY? Thanks. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

755 views

1 answer

validation - jQuery: what is the best way to restrict "number"-only input for textboxes? (allow decimal points)

What is the best way to restrict "number"-only input for textboxes? I am looking for something that allows ... See: https://stackoverflow.com/a/20186188/66767 Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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972 views

1 answer

validation - How to validate IP address in Python?

This question already has answers here: Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

validation - What is the maximum length of a valid email address?

What is the maximum length of a valid email address? Is it defined by any standard? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

835 views

1 answer

validation - Check if inputs are empty using jQuery

I have a form that I would like all fields to be filled in. If a field is clicked into and then not filled ... being filled in or not. What am I doing wrong? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

936 views

1 answer

validation - How to sanity check a date in Java

I find it curious that the most obvious way to create Date objects in Java has been deprecated and appears to have ... yyyy-mm-dd) would be an invalid date. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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