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Validating select box

validating select box-88

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If the default option (‘Select …’) has a non-empty value, the required validation won’t give the desired result.You can use the minlength/maxlength/rangelength validations for check box group as well.Just like the radio group, checkbox group also requires some custom error placement to make it look good. It may be required in certain cases you want to ignore the validations of an element.For example, a set of radio buttons and an ‘other’ option with a text input.The ‘depends’ parameter takes a function that returns true or false.Here are some common text pattern validations: See the demo @Code Pen Doing a ‘required’ validation for a Dropdown list is a bit tricky.

Dropdown list will always have one item always selected.

See the Demo @Code Pen A check box group allows the user to select multiple options.

A common validation for such an input would be to limit the options that can be selected (minimum /maximum to be selected).

Common validations for text field are ‘required’, minlength, maxlength or matching with a text pattern for a pattern In the example code above, validation to mean: “the input always needs to be of x characters or more” This is for numeric inputs – when you wan to to check whether the input falls in a certain numeric range.

For example, if the input should be greater than or equal to 10 then the validation is See the demo @Code Pen Common text input patterns like email, URL, decimal number etc are available “ready to use” in the library. also contains a ‘pattern’ validation where you can give a regular expression as a parameter.

See the demo @Code Pen The note on minlength for textbox applies to checkbox group too. This can become especially handy in case of dynamically generated forms. the parameter to the ignore parameter is j Query selector that is similar to any j Query .not() selector.