jQuery Multiselect delegate event using “on”

问题

I am familiar with using "on" for making sure my jquery methods are active (since I render pages via Ajax).

Ex:

$('body').on( 'click', '#demobutton', function (event) {
    alert("CliCKED!");
});

However I need to do the same for jQuery Multiselect. Below works only when the page is reloaded. However if my content is loaded via Ajax, MultiSelect does not render at all.

$("select").multiselect({
   click: function(event, ui){
      alert(ui.value + ' ' + (ui.checked ? 'checked' : 'unchecked') );



   },
   beforeopen: function(){
      $callback.text("Select about to be opened...");
   },
   open: function(){
      $callback.text("Select opened!");
   },
   beforeclose: function(){
      $callback.text("Select about to be closed...");
   },
   close: function(){
      $callback.text("Select closed!");
   },
   checkAll: function(){
      $callback.text("Check all clicked!");
   },
   uncheckAll: function(){
      $callback.text("Uncheck all clicked!");
   },
   optgrouptoggle: function(event, ui){
      var values = $.map(ui.inputs, function(checkbox){
         return checkbox.value;
      }).join(", ");





      alert("CheckboXES " + (ui.checked ? "checked" : "unchecked") + ": " + values);

   }
});

So the question is how to rewrite above using a format such as $('body').on ? Thanks for any help. Newbie here!

回答1:

since you specified (However if my content is loaded via Ajax, MultiSelect does not render at all.)

here i am loading select options with ajax and binding multiselect jsfiddle . Let me know if this helps you.

$(document).ready(function(e) {         
        var form_data = $("#frm").serialize();
        var form_url = $("#frm").attr("action");
        var form_method = $("#frm").attr("method").toUpperCase();

        $("#loadingimg").show();

        $.ajax({
            url: form_url, 
            type: form_method,      
            data: form_data,     
            cache: false,
            success: function(returnhtml){     
                alert('binded options to select on ajax success');
                $.when(assignOptions()).done(function(){
                  bind();
                });              
            }           
        });    
});

function assignOptions(){
  $("#display_list").append('<option value="W1">VICccccc</option><option value="W2">NSW</option><option value="W6">TAS 3</option>');
}
function bind(){    
  $("select").multiselect({
   click: function(event, ui){
      alert(ui.value + ' ' + (ui.checked ? 'checked' : 'unchecked') );

   },
   beforeopen: function(){
      $callback.text("Select about to be opened...");
   },
   open: function(){
      $callback.text("Select opened!");
   },
   beforeclose: function(){
      $callback.text("Select about to be closed...");
   },
   close: function(){
      $callback.text("Select closed!");
   },
   checkAll: function(){
      $callback.text("Check all clicked!");
   },
   uncheckAll: function(){
      $callback.text("Uncheck all clicked!");
   },
   optgrouptoggle: function(event, ui){
      var values = $.map(ui.inputs, function(checkbox){
         return checkbox.value;
      }).join(", ");

      alert("CheckboXES " + (ui.checked ? "checked" : "unchecked") + ": " + values);

   }
});
}

来源：https://stackoverflow.com/questions/23577327/jquery-multiselect-delegate-event-using-on

标签

javascript

jquery

ajax

jquery-multiselect