Remove 'None' option in DropdownList of Kendo UI Scheduler Popup Editor

Environment

Product Version 2019.2.619
Product Scheduler for ProgressĀ® Kendo UIĀ®

Description

How can I prevent having 'None' as an option and as a default value in the DropdownList of the Scheduler Popup Editor Form?

Solution

  1. Hide the 'None' option by setting the display to none for the selector 'div.k-list-optionlabel'.

div.k-list-optionlabel {
  display: none;
}

  1. Set the 'defaultValue' in the schema.model.fields.fieldName.

schema: {
  fields: {
    roomId: { from: "RoomID", defaultValue: 1 }
  }
}

  1. By default, the 'nullable' parameter is set to false as seen in the Model.define method. You can also set the 'nullable' parameter to false.

schema: {
  fields: {
    roomId: { from: "RoomID", nullable: false }
  }
}

<style>
    div.k-list-optionlabel {
      display: none;
    }
</style>

<div id="example" class="k-content">
    <div id="scheduler"></div>
</div>

<script>
$(function() {
    $("#scheduler").kendoScheduler({
        date: new Date("2013/6/13"),
        startTime: new Date("2013/6/13 07:00 AM"),
        height: 600,
        views: [
            "day",
            { type: "week", selected: true },
            "month",
            "agenda",
            "timeline"
        ],
        timezone: "Etc/UTC",
        dataSource: {
            batch: true,
            transport: {
                read: {
                    url: "https://demos.telerik.com/kendo-ui/service/meetings",
                    dataType: "jsonp"
                },
                update: {
                    url: "https://demos.telerik.com/kendo-ui/service/meetings/update",
                    dataType: "jsonp"
                },
                create: {
                    url: "https://demos.telerik.com/kendo-ui/service/meetings/create",
                    dataType: "jsonp"
                },
                destroy: {
                    url: "https://demos.telerik.com/kendo-ui/service/meetings/destroy",
                    dataType: "jsonp"
                },
                parameterMap: function(options, operation) {
                    if (operation !== "read" && options.models) {
                        return {models: kendo.stringify(options.models)};
                    }
                }
            },
            schema: {
                model: {
                    id: "meetingID",
                    fields: {
                        meetingID: { from: "MeetingID", 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", nullable: true },
                        isAllDay: { type: "boolean", from: "IsAllDay" }
                    }
                }
            }
        },
        resources: [
            {
                field: "roomId",
                dataSource: [
                    { text: "Meeting Room 101", value: 1, color: "#6eb3fa" },
                    { text: "Meeting Room 201", value: 2, color: "#f58a8a" }
                ],
                title: "Room"
            }
        ] 
    });
});
</script>


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