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Reload DropDownList Options in Scheduler Edit Form
Environment
| Product | Progress® Kendo UI® Scheduler for jQuery |
Description
I have two resource DropDownLists. When the user chooses the value in the first one, I want to reload the second one.
How can I get the instance of the second DropDownList to reload the data of the DropDownList in a Scheduler edit form?
Solution
Implement an event handler for the edit event of the Scheduler. This function adds a change event handler to the first of the two DropDownLists. This change event handler successfully changes the available options in the second DropDownList by altering its DataSource.
<div id="example">
<div id="scheduler"></div>
</div>
<script>
$(function() {
function reloadLocationSelect(e) {
var newDataSource = new kendo.data.DataSource({
data: [
{ text: "Changed one", value: 5, color: "#f8a398" },
{ text: "Changed two", value: 6, color: "#51a0ed" },
{ text: "Changed three", value: 7, color: "#56ca85" }
]
});
var attendeesDropDown = $("select[data-bind='value:attendees']").getKendoDropDownList();
attendeesDropDown.setDataSource(newDataSource);
}
$("#scheduler").kendoScheduler({
date: new Date("2025/6/13"),
startTime: new Date("2025/6/13 07:00 AM"),
height: 600,
views: [
"day",
{ type: "workWeek", selected: true },
"week",
"month",
"agenda",
{ type: "timeline", eventHeight: 50}
],
timezone: "Etc/UTC",
dataSource: {
batch: true,
transport: {
read: {
url: "https://demos.telerik.com/service/v2/core/tasks"
},
update: {
url: "https://demos.telerik.com/service/v2/core/tasks/update",
type: "POST",
contentType: "application/json"
},
create: {
url: "https://demos.telerik.com/service/v2/core/tasks/create",
type: "POST",
contentType: "application/json"
},
destroy: {
url: "https://demos.telerik.com/service/v2/core/tasks/destroy",
type: "POST",
contentType: "application/json"
},
parameterMap: function(options, operation) {
if (operation !== "read" && options.models) {
return kendo.stringify(options.models);
}
}
},
schema: {
model: {
id: "taskId",
fields: {
taskId: { from: "TaskID", type: "number" },
title: { from: "Title", defaultValue: "No title", validation: { required: true } },
start: { type: "date", from: "Start" },
end: { type: "date", from: "End" },
startTimezone: { from: "StartTimezone" },
endTimezone: { from: "EndTimezone" },
description: { from: "Description" },
recurrenceId: { from: "RecurrenceID" },
recurrenceRule: { from: "RecurrenceRule" },
recurrenceException: { from: "RecurrenceException" },
roomId: { from: "RoomID", defaultValue: 1 },
attendees: { from: "Attendees", defaultValue: 1 },
isAllDay: { type: "boolean", from: "IsAllDay" }
}
}
}
},
resources: [{
field: "roomId",
name: "Rooms",
dataSource: [
{ text: "Meeting Room 101", value: 1, color: "#6eb3fa" },
{ text: "Meeting Room 201", value: 2, color: "#f58a8a" }
],
title: "Room"
},
{
field: "attendees",
name: "Attendees",
dataSource: [
{ text: "Alex", value: 1, color: "#f8a398" },
{ text: "Bob", value: 2, color: "#51a0ed" },
{ text: "Charlie", value: 3, color: "#56ca85" }
],
title: "Attendees"
}],
edit: function (e) {
var roomDropDown = $("select[data-bind='value:roomId']").getKendoDropDownList();
roomDropDown.bind('change', reloadLocationSelect);
}
});
});
</script>