php - jquery check box some ideas -


im trying make checkbox disable computation in query here

form code: 

<input type="hidden" name="stud_no[]" value="<?php echo $row['student_no'];?>"> <input type="text" name="prelim[]" value="<?php echo $row['prelim_pts']?>" id="prelim_<?php echo $row['student_no'];?>" class="txtprelim" ></td> <td><input type="text" name="midterm[]" value="<?php echo $row['midterm_pts']?>" id="midterm_<?php echo $row['student_no'];?>" class="txtmidterm" ></td> <td> <input type="text" name="final[]" value="<?php echo $row['finals_pts']?>" id="final_<?php echo $row['student_no'];?>" class="txtfinal" ></td> <td> <input type="text" name="average[]" id="average_<?php echo $row['student_no']; ?>" value="<?php echo $row['average_pts']; ?>" readonly="readonly"> </td> <td><input type="checkbox" name="disable[]" value="<?php echo $row['disable_comp'];?>" class="dis"> </td>

here jquery code:

$(document).ready(function(){                 p="";       m="";       f="";                     $(".txtprelim").keyup(function(){           var id = $(this).attr("id").replace("prelim_","");                 p = $("#prelim_" + id).val();                 m = $("#midterm_" + id).val();                 f = $("#final_" + id).val();            compute( p,m,f, id);            //alert($(".txtprelim").val());                 });             $(".txtmidterm").keyup(function(){                 var id=$(this).attr("id").replace("midterm_","");                     p = $("#prelim_" + id).val();                     m = $("#midterm_" + id).val();                     f = $("#final_" + id).val();                  compute( p, m, f,id);           //alert($(".txtmidterm").val());             });             $(".txtfinal").keyup(function(){                     var id=$(this).attr("id").replace("final_","");                         p = $("#prelim_" + id).val();                         m = $("#midterm_" + id).val();                         f = $("#final_" + id).val();                      compute( p, m, f, id);                      //alert($(".txtfinal").val());                      //alert($("f").val());      });           function compute(p , m , f , studno){       //  alert("p="+p+" m="+m+" f="+f);             var average="";              average = parsefloat(p * 0.3) + parsefloat(m * 0.3 )+ parsefloat(f * 0.4);             $("#average_" + studno).val(average.tofixed());                  //alert(average);       }                        $("input[type='dis']").change ( function(){                         var val =$(this).val();                         if($(this).is(':checked'))                         {                             alert($(this).val());                         }                      });                        });

so understood code should work better. in last function there no type='dis'. that's class

$(document).ready(function() {         p = "";         m = "";         f = "";          var computevalues = function(){             var id = $(this).attr("id").replace("prelim_", "").replace("midterm_", "").replace("final_", "");             p = $("#prelim_" + id).val();             m = $("#midterm_" + id).val();             f = $("#final_" + id).val();             compute(p, m, f, id);         };          $("input").bind('keyup', computevalues);          function compute(p, m, f, studno) {             var average;             average = parsefloat(p * 0.3) + parsefloat(m * 0.3) + parsefloat(f * 0.4);             $("#average_" + studno).val(average.tofixed());              }          $(".dis").change(function() {             var val = $(this).val();             if ($(this).is(':checked')) {                 $("input").unbind('keyup', computevalues);             } else {                 $("input").bind('keyup', computevalues).trigger('keyup');             }         });     });

and fiddle test http://jsfiddle.net/spokey/nhcst/

updatde:

you can add <input type="hidden" id="changeme" value="0"> in form , when user selects checkbox value of hidden input change 1

$(".dis").change(function() {                 var val = $(this).val();                 if ($(this).is(':checked')) {                     $("input").unbind('keyup', computevalues);                     $("#changeme").val('1');                 } else {                     $("input").bind('keyup', computevalues).trigger('keyup');                     $("#changeme").val('0');                 }             });

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