Validate field value by javascript before submitting an item

How to validate select field...??

hhmm

but select field has preset values
- so it already shows the values that are valid

Sorry, I did not get you.

How can I validate some fields on clicking save button of item....??

Hello

all fields have validation when form save is clicked
validation is happening according to parameters

1. most basic validation is "required"

2. chekckbox , chekckbox image, selectmultiple also have
- minumum and maximum number of values

3. multi-property field like address international can also have some properties e.g. "city", "country" as required

4. some field have specific validation e.g. e-mail field, has email format validation, weblink field has URL validation

5. then the free input field "text",
- you can select from a set of a preset validation, e.g "float" e.g. "integer" e.g. "url"
- you can also configure a full custom format + masking (see parameter)

About the select field, it has a preconfigured drop down of values, it does not have free selection !


(Finally irrelevant to your question but i will mention it) even if users hacks the form to submit a different value, the server side validation will reject it
e.g. allowed values 1, 2, 3
and form submits 4 , value will not be saved

Please give one example of select & text. In my case, I dont want to validate values of fields, I only want to check if group of some field is blank or not.

In my form
There is group of 4 select field & one text box. I want to check if all of select fields and text field have blank, then form should not be submitted.

Hello

enable the "Required" parameter inside editing TAB