Jquery not working with 2 class added

I need to add 2 class to my check box list which is dynamically made.  The issue is On Update, I need to get all of the values of all the dynamic check boxes that are checked. Well I tried to add 2 different classes to the CssStyle Attribute.  Well it must need both of them for the code below, but I only need the first one. Is there a way for the code below to check ONLY on the first css class. The 2nd CssStyle class is being used to do a count of the specific row checkbox list so it is adding the item it is currently on at the end of the CountCssClass to make it unique so they jquery can count properly. The code below need to get ALL check boxes that are checked over all check box list that are in the table etc.
Code: This does not work
var theSplitString = $('#tblDynamicCheckBoxList .DummyCssClassToRemoveCheckAllSelection input:checked').map(function () { return $(this).val(); ...