Kendo Upload upgrade(MVC) - OnUploadSelect code change -


with older version of telerik, had snippet of code find number of childnodes given below

function onuploadselect(ev) { var numberoffiles; if (ev.target.childnodes[1] != undefined && ev.target.childnodes[1] != null) {     numberoffiles = ev.target.childnodes[1].childnodes.length; } if ((numberoffiles + ev.files.length) > 4) {  //some custom validation error msgs being thrown } }

the basic logic of code prevent uploading more 4 files, ex - select 2 files,dont click on upload instead select file again , click on upload, i'm good(2+1<4) kendo uplaod, ev.target undefined, can suggest possible alternative this?

thanks adarsh

please try below code snippet.

kendo-html

<!doctype html> <html> <head>  <title>test</title> <link href="http://cdn.kendostatic.com/2014.1.318/styles/kendo.common.min.css" rel="stylesheet" /> <link href="http://cdn.kendostatic.com/2014.1.318/styles/kendo.default.min.css" rel="stylesheet" /> <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script> <script src="http://cdn.kendostatic.com/2014.1.318/js/kendo.all.min.js"></script> </head> <body> <div class="demo-section">                     <input name="files" id="files" type="file" /> </div> <script>                 $(document).ready(function() {                     $("#files").kendoupload({                        select: onselect                     });                 });          function onselect(e) {                     if (e.files.length > 4) {                alert("please select max 4 files.");                e.preventdefault();             }                 else {                var existingfilecount = $(".demo-section li").length;                if((e.files.length + existingfilecount) > 4)                  {                    alert("you can not upload more 4 files");                    e.preventdefault();                    }                  }                 } </script> </body> </html>

kendo-mvc

javascript

<script>              function onselect(e) {                     if (e.files.length > 4) {                alert("please select max 4 files.");                e.preventdefault();             }                 else {                var existingfilecount = $(".demo-section li").length;                if((e.files.length + existingfilecount) > 4)                  {                    alert("you can not upload more 4 files");                    e.preventdefault();                    }                  }                 } </script>

view.cshtml

<div class="demo-section">         @(html.kendo().upload()             .name("files")             .events(events => events.select("onselect"))         ) </div>

note : have used 'demo-section' class simplyfy code. if want rename class rename class in html/cshtml , javascript.

let me know if concern.


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