Validating a checkbox in javascript

In all cases, the form is called That's checking the value's equality with a null String (two single quotes with nothing between them).

When you are asking a reader for their email address, you can use a simple » address validation function to make sure the address has a valid structure. Each option in a drop-down box is indexed in the array Annoyingly, there is no simple way to check which radio button out of a group is selected — you have to check through each element, linked with Boolean AND operators .

I have the code below which is working as expected.

It is doing a form validation with and Vee-Validate.

Format("return validate Check Boxes In Grid('');", Grid View1.

Format("check All Check Boxes In Grid('');", Grid View1. Change the validation function to this: function validate Check Boxes In Grid(grid Id) { var grid Ref = Element By Id(grid Id); if ( grid Ref == null ) return; var element Array = grid Elements By Tag Name('input'); for (var i=0; i Hi.

(message saying you mush check one checkbox before deleting anyrow.) but in gridview i used the following line.

I only don't like that I have to manually call validate for one Checked-Validator on form submission. Of course, if you want better support than that, you could get all checkboxes, loop through them and check if they have the class, then see if there's more than one checked. When I copied and pasted your code into a html file and ran it, my FF and IE spat out an error.When you submit a form to a CGI program that resides on the server, it is usually programmed to do its own check for errors.If it finds any it sends the page back to the reader who then has to re-enter some data, before submitting again.

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When the Button is clicked, a j Query click event handler is executed which first references the Check Box using its ID and then based on whether it is checked or unchecked, displays a Java Script alert message box. Net Question Answer site, specially started to allow visitors of this site ask their doubts and queries. Just click the Ask Now button and ask your question now.

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