javascript kendo-ui kendo-mobile kendo-scheduler

Kendo Scheduler Won't Take dataSource

I have a JSON array that looks something like this:

var mockArr = [ 
{activity: "That One Activity", due_date: "07/22/2016", address: "22 Jump Ln", id: "42"},
{activity: "That Other Activity", due_date: "07/25/2015", address: "123 Fake St", id: "43"}
];

and I'm trying to bind it to a kendo Scheduler widget, which is configured like this:

$("#scheduler").kendoScheduler({
            date: new Date(),
            height: 100,
            views: [
                {type: "day"},
                {type: "month", selected: true},
                {type: "agenda", selectedDateFormat: "{0:ddd, M/dd/yyyy} - {1:ddd, M/dd/yyyy}"}
            ],
            mobile: "phone",
            timezone: "Etc/UTC",
            allDaySlot:true,
            editable: false,
            dataSource: {
                data: mockArr,
                schema: {
                    model: {
                        id: "taskId",
                        fields: {
                            taskId: { from: "id", type: "number" },
                            title: { from: "activity" },
                            start: { type: "date", from: "due_date" },
                            end: {type: "date", from: "due_date"},
                            description: { from: "address" }
                        }
                    }
                }
            }
    });

When I run the web applet the console spits out "TypeError: e is null", and I get a page that looks like this

But I get a working scheduler when I replace mockArr and the referencing model with a static SchedulerEvent such as:

var event = new kendo.data.SchedulerEvent({
    id: 1,
    title: "test event",
    start: new Date("2016/7/22"),
    end: new Date("2016/7/22")
});

Why doesn't the scheduler like my dataSource?

Solution

There are few reasons you are facing this issue.

The reason why page look like in the image you provided is because you specified height: 100 .Remove this line kendo framework handle it automatically and you can specify it later based on your need.
Your Json Array need to be formatted correctly. see the snippet in the code provided
The data Parameter in datasource expect a javascript object you need to parse it using this data:JSON.parse(mockArr),
I noticed that kendo does not allow to bind start/end parameter in the fields to same name like you used due_date so it need to be changed to
start:{ type: "date", from: "due_date" }, end: { type: "date", from: "due_date1" },

Other than this Your code work fine I have tested it.

The console error "web applet the console spits out "TypeError: e is null" sounds to be specific to java , i assume you are using java and that might be related to java framework.

Here is your live version of working code .

Navigate to Kendo UI online Editor and delete the pre-populated code and paste the code snippet provided below.

<!DOCTYPE html>
<html>
<head>
    <base href="http://demos.telerik.com/kendo-ui/scheduler/index">
    <style>html { font-size: 14px; font-family: Arial, Helvetica, sans-serif; }</style>
    <title></title>
    <link rel="stylesheet" href="//kendo.cdn.telerik.com/2016.2.714/styles/kendo.common-material.min.css" />
    <link rel="stylesheet" href="//kendo.cdn.telerik.com/2016.2.714/styles/kendo.material.min.css" />
    <link rel="stylesheet" href="//kendo.cdn.telerik.com/2016.2.714/styles/kendo.default.mobile.min.css" />

    <script src="//kendo.cdn.telerik.com/2016.2.714/js/jquery.min.js"></script>
    <script src="//kendo.cdn.telerik.com/2016.2.714/js/kendo.all.min.js"></script>
    <script src="//kendo.cdn.telerik.com/2016.2.714/js/kendo.timezones.min.js"></script>
</head>
<body>
<div id="example">   
    <div id="scheduler"></div>
</div>

<script>

  var mockArr ='[{"activity":"That One Activity","due_date":"07/22/2016","due_date1":"07/22/2016","address":"22 Jump Ln","id":"42"},{"activity": "That Other Activity", "due_date": "07/25/2016","due_date1":"07/25/2016","address": "123 Fake St", "id": "43"}]';




$("#scheduler").kendoScheduler({
            date: new Date(),           
            views: [
                {type: "day"},
                {type: "month", selected: true},
                {type: "agenda", selectedDateFormat: "{0:ddd, M/dd/yyyy} - {1:ddd, M/dd/yyyy}"}
            ],          

            allDaySlot:true,
            editable: true,
            dataSource: {
                data:JSON.parse(mockArr),
                schema: {
                    model: {
                        id: "taskId",
                        fields: {
                            taskId: { from: "id", type: "number" },
                            title: { from: "activity" },
                             start: { type: "date", from: "due_date" },
                             end: { type: "date", from: "due_date1" },
                            description: { from: "address" }
                        }
                    }
                }
            }
    });



</script>


</body>
</html>