1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | $(document).ready(function(){ // cache this query since it's a search by CLASS selectable = $(":checked.selectable"); // when the select/deselect all is clicked, do this function $("#selectall").click(selectAll); // whenever any individual checkbox is checked, change the text // describing how many are checked selectable.click(changeNumFilters); // calculate how many are initially checked changeNumFilters(); }); var selectable; function changeNumFilters() { // this needs to be checked on every call // since the length can change with every click var size = $(":checked.selectable").length; if (size > 0) $("#selectedCount").html(size); else $("#selectedCount").html("0"); } // handles the select/deselect of all checkboxes function selectAll() { var checked = $("#selectall").attr("checked"); selectable.each(function(){ var subChecked = $(this).attr("checked"); if (subChecked != checked) { $(this).click(); } }); changeNumFilters(); } |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | // handles the selection/unselection of all checkboxes function selectAll() { var checked = $("#selectall").attr("checked"); selectable.unbind("click", changeNumFilters); selectable.each(function(){ var subChecked = $(this).attr("checked"); if (subChecked != checked) { $(this).click(); } }); selectable.bind("click", changeNumFilters); changeNumFilters(); } |
1 2 3 4 5 6 7 8 | function selectAll() { var checked = $("#selectall").attr("checked"); selectable.each(function(){ $(this).attr("checked", checked); }); changeNumFilters(); } |
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