After upgrading our application from an older version of Kendo to v2022 R1 (301), we discovered a strange problem with the Kendo DatePicker popup calendar. Everything works fine on a desktop web browser but on a mobile phone the month calendar view renders as in the attached image:

Other calendar display modes work correctly. The problem seems to occur on all the phones we have tried (Android, iPhone).

The DatePicker control is instantiated on demand via Jquery function. No special DatePicker features used. Here is a snippet from the rendering function (ownerDiv is a parameter passed to the function):

            var datepickerWrapper = ownerDiv.find('#end-date-wrapper');
            datepickerWrapper.empty();
            datepickerWrapper.append('<input id="chart-end-date" name="chart-end-date" style="width:8em" />');
            datepickerDiv = historyDiv.find('#chart-end-date');
            datepickerDiv.kendoDatePicker({
                animation: false,
                change: function (e) {
                    changeEnddate(e);
                }
            });

The only slightly unusual thing about this is the parent HTML is part of the detail pane for a Kendo grid.  The popup calendar used to work just fine in the old version of Kendo we used to use (version circa 2018).

I'm at a loss. Android Chrome debugger running against a phone executing the DatePicker does not reveal any browser exceptions.

Any thoughts?

Jeff Benson
Senior Developer
New Boundary Technologies, Inc.

I have just seen the demo about using kendo DatePicker. But when inspect the calendar icon under Accessibility menu I can see the Default name for the button is given as "select". I would like to change the name of button from "select" to "Pick a date". Please Guide through. I have attached image for your reference.

Following is the code snippet: