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Just if used, no special characters and no blank spaces. Do you want to include accented characters? I would want and all letters, underscore, hyphen, and a period allowed, nothing else Special characters like!

And no blank spaces. For the moment, I will assume you mean the Latin alphabet a-z, A-Z. You can extend this from there, if need be. The HTML pattern attribute can take them, or we can handle it in Javascript if you want to do more complex things than simply preventing form submission.

So we can use that. We want to add the hyphen, and period. Period is a gotcha character, because it has a special meaning. Hyphen can cause issues too, because it can be used to represent a range of things As in A-Z. Regex defines a character set by putting square brackets around them. If this function returns null, then the string complies with your rules.

If it returns anything else, there was one or more illegal characters in it. Paul teaching me things here too. I tried the code in your demo, works fine. I substituted to my user name, added the required pattern. Its the same sort of thing here too. That is not the only input that I have. I also have the following example with other alerts, etc:. Is it outside of a form? A form with a submit button tends to be a good guarantee that things will work. The validation JS works fine. Would the onclick as below make a difference for this particular JS?

Can you link us to a test page for the purpose of troubleshooting? I appreciate your offer of assistance though.

javascript validation to allow only alphabets and space

Let me further look at it on my side my stripping out the rest of the code and first check the results. Will let you know my conclusions. Thank you. How is that validate function being triggered? Not sure if I understand. Below is what I am using and the form submits just fine and validates the fields.

#26 Form Validations in JavaScript

Are you suggesting it would be best to make a change? JS with no special characters and blank spaces JavaScript.One of them has uppercase A-Z as well, and has had added to it colon quote space. The first matches any unacceptable characters, the second matches a string of acceptable characters. Your expression represents a required match so the logic is different:.

javascript validation to allow only alphabets and space

I have run up a test of the code that was posted and it seems to work. What seems to be the problem? Do you have any test inputs that are not working as expected? Or is something more serious occurring. If so, something might be conflicting that we can resolve by taking a look. It seems to work on the test code that I created from your post, so assuming that your test code is the same, there must be something else causing the problem. Can you help me to take a look at your test page?

Commonly the most effective way is for you to link to a test page that you have on the internet, or failing that, you can attach a file to a post. This code not working…. Can you please break this down in to steps that I can follow to try and duplicate your experience. For example:. I confirm: this script not working and all javascript in my computer work properly without problems.

Check letters, numbers and special characters JavaScript. Miguel61 August 30,am 1. Hi there.

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I need ur appreciated help. This is the function CheckmyForm. Can u help me? Miguel61 August 30,pm 3. Thank u Sir. But I have one question for u. Miguel61 August 30,pm 6. Miguel61 September 5,am 9. Miguel61 September 5,am Sorry Sir, but ur code not working… are u tested? What characters do you consider to be invalid? For example? By the way. The script will only run when scripting is actually enabled.

Miguel61 August 30,pm Thanks for ur help. Regards and thanks for ur time.NET Articles,Gridview articles,code examples of asp. If you enjoyed this post, please support the blog below. It's FREE! Get the latest Asp. I need regular expression to accept 11mit these kind characters only And not other characters like abc instead of mit I want total c and ASP. Thanks, Neha. Appreciate,if you could please elaborate the meaning of this expression. Thanks in advance. Thanks for this post but enter phone number in 10digits only.

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Por favor,activa el JavaScript! Home Asp. Javascript validations for Email,Phone no and allow only characters, spaces, numbers in asp.

Regex pattern for alphanumeric, hyphen and underscore.

Categories: Asp. Here I will explain how to validate Email,phone number,to allow only characters and spaces and for allow only numbers using JavaScript validations in asp. I have a one sample registration form that contains fields like Name, Email, PhoneNo. Now I want to check whether user enter correct email format or not, and phone number contains only numbers or not and name contains only characters and spaces or not by using JavaScript. Here some of commonly used regular expressions. Regular Expression for Email.

Regular expression to accept only characters and spaces. Regular expression to accept alphanumeric and spaces. Regular Expression to accept only numbers. Regular Expression for Mobile Number.NET Articles,Gridview articles,code examples of asp. If you enjoyed this post, please support the blog below. It's FREE!

javascript validation to allow only alphabets and space

Get the latest Asp. Suresh i have one problem i have to take input from barcode scanner but the textbox should be capable to input multiple barcode values with comma as a separator please help me in this regard thanks in advance. Give your Valuable Comments. Please enable JavaScript! Bitte aktiviere JavaScript! Por favor,activa el JavaScript! Home Asp. Categories: Asp. Introduction :. Now I will explain regular expression to allow special characters and spaces.

To allow special characters and spaces we need to write the regular expression like as shown below. If you want see it in complete example need to write the code like as shown below. Live Demo.

If you want to test enter special characters like! Enter Text :. Newer Post Older Post Home. Subscribe to: Post Comments Atom. Interview Questions in ASP. NET Framework Simple login form example in asp.

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Search This Site. Step By Step Tutorials Asp.The above code has been tested in the following browsers. Home Categories. Net using:- 1. RegularExpression Validator. Net using To the Button a jQuery click event handler is attached thus when the button is clicked, the TextBox text is validated against the Regular Expression Regex and if it contains character other than Alphabets, Numbers or Space then an error message is displayed. Numbers and Space. View Demo. Browser Compatibility. Related Articles.

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Please do not post code, scripts or snippets. Required Invalid Email Address. Security code:. Required Invalid security code. I declare, I accept the site's Privacy Policy. Add Comment. Message from Author. Hi, This is Mudassar Khan. Thank you for visiting this website. Need more help? Ask our team at ASPForums.

javascript validation to allow only alphabets and space

Net Happy! Please Share and Subscribe to support us. Disclaimer : The code samples and API available at www. You are free to use it for commercial as well as non-commercial use at your own risk, but you cannot use it for posting on blogs or other tutorial websites similar to www. All the code samples and API provided by the authors are solely their creation and neither the author nor the site are responsible if it does not work as intended.

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Got it.The above code has been tested in the following browsers. Home Categories. Here Mudassar Ahmed Khan has explained with an example, how to allow only AlphaNumeric character values i.

The script works in such a way that the TextBox will accept only alphabets, numbers i. In this article I will explain with an example, how to allow only AlphaNumeric character values i.

You might also like to read:. Allow only numeric value numbers in TextBox using JavaScript. HTML Markup. Alphanumeric value:. Uppercase Alphabets.

Lowercase Alphabets. Numbers Digits. Space character. Special Keys inserted in the Array. And only if the character matches any of the above then only it is allowed in the TextBox. Browser Compatibility.

View Demo. Related Articles. Add Comments. Thank you for the feedback. The comment is now awaiting moderation. You will be notified via email when the author replies to your comment.

You can add your comment about this article using the form below. Make sure you provide a valid email address else you won't be notified when the author replies to your comment Please note that all comments are moderated and will be deleted if they are Not relavant to the article Spam Advertising campaigns or links to other sites Abusive content. Please do not post code, scripts or snippets.

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How to allow backspace and space when validating letters in VB?

Hi, This is Mudassar Khan. Thank you for visiting this website. Need more help?Home Categories. Net using:- 1. RegularExpression Validator. Net using On the OnClientClick event of the Button, a JavaScript function is executed which validates the TextBox text against the Regular Expression Regex and if it contains character other than Alphabets or Space then an error message is displayed. To the Button a jQuery click event handler is attached thus when the button is clicked, the TextBox text is validated against the Regular Expression Regex and if it contains character other than Alphabets or Space then an error message is displayed.

Related Articles. Add Comments. Thank you for the feedback. The comment is now awaiting moderation. You will be notified via email when the author replies to your comment. You can add your comment about this article using the form below.

Make sure you provide a valid email address else you won't be notified when the author replies to your comment Please note that all comments are moderated and will be deleted if they are Not relavant to the article Spam Advertising campaigns or links to other sites Abusive content. Please do not post code, scripts or snippets. Required Invalid Email Address. Security code:. Required Invalid security code. I declare, I accept the site's Privacy Policy.

Add Comment. Message from Author. Hi, This is Mudassar Khan. Thank you for visiting this website. Need more help? Ask our team at ASPForums. Net Happy! Please Share and Subscribe to support us. Disclaimer : The code samples and API available at www. You are free to use it for commercial as well as non-commercial use at your own risk, but you cannot use it for posting on blogs or other tutorial websites similar to www.

All the code samples and API provided by the authors are solely their creation and neither the author nor the site are responsible if it does not work as intended. I agree to the above terms. View Demo. What our readers say. Error Details. This site makes use of Cookies. Please refer Privacy Policy for more details.

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