javascript - How to only display certain options in select tag? -

-

how display options depending on value in select tag?

 function key(id){      var selectvalue = document.getelementbyid('names').value         = document.carmakes.cars.selectedindex         var selectoption = $("#names option:selected").val();  }  <select size='5' name='carmakes' onchange='key(id)'>     <option selected='selected' value="-1">car makes</option>     <option>bmw</option>     <option>audi</option> </select>  <select required='required' size='5' type='text' id='names'> <option selected="selected" value="0" >car names</option> <option value="1">x5</option> <option value="2">q5</option>

check this: http://www.sanwebe.com/2013/05/select-box-change-dependent-options-dynamically 

<!doctype html> <html> <head> <meta charset='utf-8' /> <script src="//ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script> <script language="javascript" type="text/javascript">   $(document).ready(function(){  //let's create arrays var chocolates = [     {display: "dark chocolate", value: "dark-chocolate" },      {display: "milk chocolate", value: "milk-chocolate" },      {display: "white chocolate", value: "white-chocolate" },     {display: "gianduja chocolate", value: "gianduja-chocolate" }];  var vegetables = [     {display: "broccoli", value: "broccoli" },      {display: "cabbage", value: "cabbage" },      {display: "carrot", value: "carrot" },     {display: "cauliflower", value: "cauliflower" }];  var icecreams = [     {display: "frozen yogurt", value: "frozen-yogurt" },      {display: "booza", value: "booza" },      {display: "frozen yogurt", value: "frozen-yogurt" },     {display: "ice milk", value: "ice-milk" }];  //if parent option changed $("#parent_selection").change(function() {         var parent = $(this).val(); //get option value parent           switch(parent){ //using switch compare selected option , populate child               case 'chocolates':                 list(chocolates);                 break;               case 'vegetables':                 list(vegetables);                 break;                             case 'icecreams':                 list(icecreams);                 break;               default: //default child option blank                 $("#child_selection").html('');                   break;            } });  //function populate child select box function list(array_list) {     $("#child_selection").html(""); //reset child options     $(array_list).each(function (i) { //populate child options          $("#child_selection").append("<option value=\""+array_list[i].value+"\">"+array_list[i].display+"</option>");     }); }  }); </script>  </head> <body>   <div class="wrapper"> category : <select name="parent_selection" id="parent_selection">     <option value="">-- please select --</option>     <option value="chocolates">chocolates</option>     <option value="vegetables">vegetables</option>     <option value="icecreams">ice cream</option> </select> <select name="child_selection" id="child_selection"> </select> </div> </body> </html>

or this: http://simpleweb.github.io/jquery-dependent-selects/


Comments

Post a Comment

Popular posts from this blog

java - Oracle EBS .ClassNotFoundException: oracle.apps.fnd.formsClient.FormsLauncher.class ERROR -

-
i need in configuring java on machine because, when try loading forms, loader goes in circles , gives error: java.lang.classnotfoundexception: oracle.apps.fnd.formsclient.formslauncher.class @ sun.plugin2.applet.applet2classloader.findclass(unknown source) @ sun.plugin2.applet.plugin2classloader.loadclass0(unknown source) @ sun.plugin2.applet.plugin2classloader.loadclass(unknown source) @ sun.plugin2.applet.plugin2classloader.loadclass(unknown source) @ java.lang.classloader.loadclass(unknown source) @ sun.plugin2.applet.plugin2classloader.loadcode(unknown source) @ sun.plugin2.applet.plugin2manager.createapplet(unknown source) @ sun.plugin2.applet.plugin2manager$appletexecutionrunnable.run (unknown source) @ java.lang.thread.run(unknown source) i have tried re-installing firefox, older versions of java runtime environments, disabling proxy. what missing? application working on other machines. i spent around 100 hours finding s
Read more

c# - how to use buttonedit in devexpress gridcontrol -

-
Image
i trying create gridcontrol buttonedit in 1 of columns. when user clicks button edit, popups form select product. when selection done on popup, returns datarow selection main grid below. but when column loses focus, value wrote column disappear. here code creates gridcontrol's data , buttonedit's click event. private void frmsiparisnew_load(object sender, eventargs e) { dt = new datatable(); dt.columns.add("malzeme_kodu",typeof(string)); dt.columns.add("malzeme_aciklama", typeof(string)); dt.columns.add("adet", typeof(decimal)); dt.columns.add("birim", typeof(string)); dt.columns.add("fiyat", typeof(decimal)); dt.columns.add("kur", typeof(string)); dt.columns.add("tutar", typeof(decimal)); datarow dr = dt.newrow(); dt.rows.add(dr); gc.datasource = dt; } private void repositoryitembuttoneditmal
Read more

nvd3.js - angularjs-nvd3-directives setting color in legend as well as in chart elements -

-
good morning i using angularjs-nvd3-directives, great, having difficulties when setting color of multi bar chart ( http://cmaurer.github.io/angularjs-nvd3-directives/multi.bar.chart.html ). the show legend works well: <div ng-controller="examplectrl"> <nvd3-multi-bar-chart data="exampledata" id="showlegendexample" width="550" height="300" showxaxis="true" showyaxis="true" xaxistickformat="xaxistickformatfunction()" showlegend="true"> <svg></svg> </nvd3-multi-bar-chart> </div> but when add option in conjunction color="colorfunction()" where, var colorarray = ['#ff0000', '#0000ff', '#ffff00', '#00ffff']; $scope.colorfunction = function() { return function(d, i) { return colorarray[i]; }; } the color of cha
Read more