sharepoint list jquery javascript

Question

I have checkbox field "Department" with values ( De beers, Platinum, gold, silver) and another single line of text "Design". When any user select "De beers" from checkbox, then "Design" field should get mandatory and user could not submit the form. Please let me know if any javascript of jquery is available. Thanks

Answer 1

Using Jquery you will implement you requirement.

Code :

if($('input[name="De beers"]:checked'))
{
$("#Design").attr("required", "true");
}

Answer 2

What about no script at all and putting something like this Formula in the Validation settings:

=IF( AND( [Department]="De Beers" , ISBLANK([Design]) ) , FALSE , TRUE )

So SharePoint does what it can do