Kendo Gantt Timeline in 30 minute increments? - asp.net-mvc

Question

I am using the Kendo Gantt chart with ASP.NET Core MVC, and I would like to get the Day view timeline to show in 30 minute increments vs. 1 hour increments. The working hours I'm trying to display for each day are 7:00 AM to 3:30 PM, but I cannot get that 3:30 PM end of day to display.
Here is an example of getting a time header template using the jquery kendo gantt chart
<div id="gantt"></div>
<script>
$("#gantt").kendoGantt({
dataSource: [{
id: 1,
orderId: 0,
parentId: null,
title: "Task1",
start: new Date("2014/6/17 9:00"),
end: new Date("2014/6/17 11:00")
}],
views: [
{ type: "day", timeHeaderTemplate: kendo.template("#=kendo.toString(start, 'T')#") },
{ type: "week" },
{ type: "month" }
]
});
</script>
However, I can't figure out how get that template to show the 30 minute increments, or if there is a different way to accomplish this. Essentially, I want it to look like the Kendo Scheduler Timeline view shown here:

Answer 1

I opened a support ticket with Telerik and got an answer that while there is no built-in way to do this with the Gantt component, one way to implement would be to create a custom view as demonstrated here: https://docs.telerik.com/kendo-ui/controls/scheduling/gantt/how-to/creating-custom-view
Custom view example code:
<div id="gantt"></div>
<script type="text/javascript">
var gantt;
$(function StartingPoint() {
kendo.ui.GanttCustomView = kendo.ui.GanttView.extend({
name: "custom",
options: {
yearHeaderTemplate: kendo.template("#=kendo.toString(start, 'yyyy')#"),
quarterHeaderTemplate: kendo.template("# return ['Q1', 'Q2', 'Q3', 'Q4'][start.getMonth() / 3] #"),
monthHeaderTemplate: kendo.template("#=kendo.toString(start, 'MMM')#")
},
range: function(range) {
this.start = new Date("01/01/2013");
this.end = new Date("01/01/2016");
},
_generateSlots: function(incrementCallback, span) {
var slots = [];
var slotStart = new Date(this.start);
var slotEnd;
while (slotStart < this.end) {
slotEnd = new Date(slotStart);
incrementCallback(slotEnd);
slots.push({ start: slotStart, end: slotEnd, span: span });
slotStart = slotEnd;
}
return slots;
},
_createSlots: function() {
var slots = [];
slots.push(this._generateSlots(function(date) { date.setFullYear(date.getFullYear() + 1); }, 12));
slots.push(this._generateSlots(function(date) { date.setMonth(date.getMonth() + 3); }, 3));
slots.push(this._generateSlots(function(date) { date.setMonth(date.getMonth() + 1); }, 1));
return slots;
},
_layout: function() {
var rows = [];
var options = this.options;
rows.push(this._slotHeaders(this._slots[0], kendo.template(options.yearHeaderTemplate)));
rows.push(this._slotHeaders(this._slots[1], kendo.template(options.quarterHeaderTemplate)));
rows.push(this._slotHeaders(this._slots[2], kendo.template(options.monthHeaderTemplate)));
return rows;
}
});
gantt = new kendo.ui.Gantt($("#gantt"),
$.extend({
columns: [
{ field: "id", title: "ID", sortable: true, editable: false, width: 30 },
{ field: "title", title: "Title", sortable: true, editable: true, width: 100 },
{ field: "start", title: "Start Time", sortable: true, editable: true, format: "{0:MM/dd/yyyy HH:mm}", width: 100 },
{ field: "end", title: "End Time", sortable: true, editable: true, format: "{0:MM/dd/yyyy HH:mm}", width: 100 }
],
views: [
"week",
{ type: "kendo.ui.GanttCustomView", title: "Quaterly", selected: true }
],
listWidth: 500,
dataBound: function() {
var height = this.timeline.view().header.height();
this.list.thead.find('tr').css('height',height);
},
dataSource: {
data: [{ id: 1, parentId: null, percentComplete: 0.2, orderId: 0, title: "foo", start: new Date("05/05/2014 09:00"), end: new Date("06/06/2014 10:00") },
{ id: 2, parentId: null, percentComplete: 0.4, orderId: 1, title: "bar", start: new Date("07/06/2014 12:00"), end: new Date("08/07/2014 13:00") }]
},
dependencies: {
data: [
{ id: 1, predecessorId: 1, successorId: 2, type: 1 }
]
}
}, {})
);
});
</script>