jquery - javascript how to see the razor variable? and set checkbox? -

have edit form has checkboxes. if checkbox checked uses script send yes/no value onto hiddenfor( variable.

<div class="form-group"> @html.labelfor(model => model.ptmodel1, htmlattributes: new { @class =      "control-label col-md-2" }) <div class="col-md-10">     <div class="checkbox">         @html.checkbox("checkbox")         @html.hiddenfor(model => model.ptmodel1, new { htmlattributes = new { @class = "form-control" } })     </div> </div> 

script code:

$("#checkbox1").on("click", function () {                 var mycheckbox1 = $("#checkbox1");                 if (mycheckbox1.is(":checked")) {                     $("#ptmodel1").val("yes");                 }                 else {                     $("#ptmodel1").val("no");                 }             }); 

ok on create , edit methods in mvc bootstrap forms works fine along script add yes/no; problem happens when going edit, if value checked , set yes, defaults no, , checkbox not checked. how make checkbox checked if value thats in form ptmodel1 variable "yes" ??

 <script>    $(window).load(function () {         switch (("#ptmodel1").val) {             case "yes": $("#checkbox1").checked;                alert("in switch case");                break;            default: alert("in switch case default" + "#ptmodel1");     } }); </script> 

question: how set checkbox, if value of variable "yes" ? syntax isnt doing expect.

2nd question: @ 1 time had saving tiny icon image of checked checkbox, in index view display icon. whatever makes save , display state. checkbox must reflect checkedness of checkbox

see mistakes highlighted in below code:

$(window).load(function () {      switch ($("#ptmodel1").val()) {         //  ^                 ^^          case "yes":             $("#checkbox1").prop('checked', true);             //              ^^^^^^^^^^^^^^^^^^^^^             alert("in switch case");             break;         default:             alert("in switch case default" + "#ptmodel1");     } }); 

or

shorter version:

$(window).load(function () {     $('#checkbox1').prop('checked', $('#ptmodel1').val() == 'yes'); }); 

shorter version of event handler

$("#checkbox1").on("click", function () {     $('#ptmodel1').val($(this).is(':checked') ? 'yes' : 'no'); });