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How to check if any check box is checked in a table using jQuery?

Try with :checked selector:


Or since you're using children() try with (this only search with the DOM element childs):


Categories : Java

Related to : How to check if any check box is checked in a table using jQuery?
Check if specific set of checkboxes are checked
you can create a set first and then check if the count of elements is the same as the count of the checked elements var group = $('#option1,#option2,#option3'); if (group.length === group.filter(':checked').length){ // all are checked so you can do something.. }

Categories : Javascript
how to get array size only when check box is checked
implement this interface in your class OnCheckedChangeListener class Abc implements OnCheckedChangeListener { expListView.setOnChildClickListener(new OnChildClickListener() { @Override public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) { // TODO Auto-generated method stub

Categories : Android
Check box tag in rails always checked in nest form
Third argument to check_box_tag indicates if it should be checked or not So the following would make it render unchecked <%= check_box_tag "#{}[audience_ids][]",, false, :class => 'audience' %><%= %> In edit, pass the value based on your attribute

Categories : Ruby On Rails
How to check if at least one checkbox is checked from list of checkboxes with it name attribute as array
You can use attribute equals selector with .is() and :checked-selector if($('input[name="usernames[]"]').is(':checked')){ //at least one is checked }

Categories : Javascript
SQL constraint to check another table column
Finally found an answer by myself. It will sound silly, but I do hope it helps anyone else out there struggling with this case. By adding: UNIQUE (attr1, attr2) inside table1 we are creating a unique key, but since the primary is just attr1, there is no way that there would be duplicates of the same tuple with different attr2s. Point being, now the combination of these two is a unique key,

Categories : SQL
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