use jQuery to get values of selected checkboxes

Question

I want to loop through the checkboxgroup \'locationthemes\' and build a string with all selected values. So when checkbox 2 and 4 are selected the result would be: \"3,8\"

Answer 1

So all in one line:

var checkedItemsAsString = $('[id*="checkbox"]:checked').map(function() { return $(this).val().toString(); } ).get().join(",");

..a note about the selector [id*="checkbox"] , it will grab any item with the string "checkbox" in it. A bit clumsy here, but really good if you are trying to pull the selected values out of something like a .NET CheckBoxList. In that case "checkbox" would be the name that you gave the CheckBoxList control.