The schedulers are sitting inside a tab strip control. When the page loads, some computations are done by Kendo for setting up column widths. I feel there is a scrollbar issue somewhere. As it is a larger screenshot, please look at the attached Scrollbar size computation issue.png file. Start with the “All day” events. Notice the first event on Monday crosses the line into Tuesday just a little bit. This is highlighted and indicated with a “2” on it. Now look at the events for the week – numbers 3, 4, and 5. The events span into the next column a little more each time. They WOULD be correct if there was no scrollbar on the right! Now look at the events below with a time. “1” has the correct left offset from Monday’s left side. As you go to 2, 3, 4, and 5, this offset grows. It’s the same issue.

 Now look down at “6”. Notice the scheduler has no footer and is drawing far too low.

 The problem is that the tabstrip content is allowing scrolling. I can see this in the F12 window. Notice the scheduler does not have the scrollbar:

But the tab strip content DOES have a scrollbar:

Please note that I am specifically blocking the tab strip from scrolling in my code. The scheduler should handle the scroll.

So, I added the following CSS which fixes this issue for me:

See the Scrollbar size computation fixed.png file for the end result. The scheduler is scrolling now instead of the tab strip.

Bug report

When a decimal number has 8 digits after the decimal separator and '#' is used for formatting the precision is lost and the number is rounded.

Reproduction of the problem

1. Open the Dojo example and check the result in the console

Current behavior

kendo.toString(0.00000015,"###.########" returns 0.0000002

Expected/desired behavior

The number should not be rounded and the precision should not be lost. The results should be the same with kendo.toString(0.00000015,"n8") and kendo.toString(0.00000015,"0.00000000")

Environment

• Kendo UI version: 2022.3.1109
• Browser: [all ]

In my application, when a user changes their view date on the scheduler, there are two other schedulers on the other two tabs of the tab strip that are not visible. The dates here get changed too. This happens in a navigate event. They end up in a broken state from this. It seems the issue is that they are not visible so rendering is not happening. I found a hacky way to work around this. I am adding a newDate property and a needRefresh property to the scheduler. When a tab is activated, the scheduler in that tab is checked. If it needs a refresh, it is refreshed. If it has a new date, that is also set.

In the scheduler component, create a new event. Select monthly for the repeat. If you are using the Bootstrap theme the day will be cut off. The problem lies in the kendo.common-bootstrap.css file.

Overriding to 10em works. The same issue exists on the demo site today which I assume is running the current version (https://demos.telerik.com/kendo-ui/scheduler/index?autoRun=true&theme=bootstrap-main):

I have some client events for creating/updating events.

They are currently the same and call the same method:

Due to JSON serialization, I end up with dates being serialized as ticks when sent to the client. This function converts these ticks to a proper JavaScript Date() object. The code works perfectly fine.

We run into an error on random occasions. This happens maybe once a day per user. It is not repeatable but it was fixable. This code is from the Kendo.all.js file. The highlighted lines were added:

99% of the time things work fine. But sometimes this convertData() method is called before the client methods are called. Perhaps a threading or AJAX or promise issue?  Perhaps there is one scenario where the client method is not being called? The real bug here is that convertData() can sometimes get called before the client’s event where I would have corrected by dates. This is another case where it is tough to upgrade Kendo versions because I need to port this as minified JavaScript to the custom downloaded minified file.

Here is the text from the browser’s F12 window when we hit this error (If I have not applied the fix above):

kendo?v=Brdc2jM0hzOFDq3Kj04CDAYP5xcGXPDm3x-vN4slHho1:1 Uncaught TypeError: f.start.getTimezoneOffset is not a function
    at ai (kendo?v=Brdc2jM0hzOFDq3Kj04CDAYP5xcGXPDm3x-vN4slHho1:1:1182628)
    at init.data (kendo?v=Brdc2jM0hzOFDq3Kj04CDAYP5xcGXPDm3x-vN4slHho1:1:1182352)
    at init._readData (kendo?v=Brdc2jM0hzOFDq3Kj04CDAYP5xcGXPDm3x-vN4slHho1:1:96753)
    at init._push (kendo?v=Brdc2jM0hzOFDq3Kj04CDAYP5xcGXPDm3x-vN4slHho1:1:90345)
    at init._pushUpdate (kendo?v=Brdc2jM0hzOFDq3Kj04CDAYP5xcGXPDm3x-vN4slHho1:1:90237)
    at init.e (jquery?v=9zl6bqYAmbr9FSUZX0T1VSNbWQ5Gc01X9-RaVvSk-7A1:1:95021)
    at init.a (signalr?v=4OffKgJP3BKl-a0HMCu8SoFYj-iqmWy-1sbyLwYhtvk1:1:36810)
    at init.dispatch (jquery?v=9zl6bqYAmbr9FSUZX0T1VSNbWQ5Gc01X9-RaVvSk-7A1:1:55579)
    at y.handle (jquery?v=9zl6bqYAmbr9FSUZX0T1VSNbWQ5Gc01X9-RaVvSk-7A1:1:53581)
    at Object.trigger (jquery?v=9zl6bqYAmbr9FSUZX0T1VSNbWQ5Gc01X9-RaVvSk-7A1:1:78599)

I have a number of DataSource items in the event editor template. They are small JSON objects and it would be dumb to read them from the server each time. They do not change and are part of the page load. You can see here I am just serializing them into the page itself:

This works 9 out of 10 times. But sometimes the dataset is empty. Which is crazy because I am always filling it. I managed to find a work around on the event edit event that gets called but this seems strange to do. Not sure if there is a true bug here or not. Feels like it because this code should not have been needed:

I have an event template. Inside this template I am using a MultiSelect. It is defined like: <select data-down-Arrow="true"… .  The downArrow property does not work. I discovered via debugging the kendo.all.js file the problem. Fortunately this one is fixable outside that file:

 My recurrence rule is: FREQ=MONTHLY;COUNT=2;INTERVAL=1;BYSETPOS=2;BYDAY=WE;WKST=SU. This event falls on the second Wednesday of the month for two months in a row. When I edit the event, the wrong option is picked. Note in the screenshot attached we are on 11/09/2022 which is the second Wednesday. And the scheduler correctly shows this event. But the edit window sets the properties wrong. I am using a custom template for the edit window, however the recurrence editor portion is unmodified.

 I was able to fix this in the Kendo.all.js file directly. The highlighted lines below were added. When I publish this for customers I use the Kendo custom download tool to get a minified script of only what I need. I then need to carefully port this change using Notepad++. This makes it tough to update versions which is why I am a few versions back.

From the kendo.common-bootstrap.css file:

This cuts off the dates which have ample room to be displayed (this is my app):

I overrode this to remove the max-width:

Bug report

Reproduction of the problem

• Navigate to the Get the Licensing File section.
• Login with an existing account.
• Click on the kendo-ui-license.js button.

Current behavior

Clicking on the kendo-ui-license.js button attempts to download multiple files of the same type:

Expected/desired behavior

Clicking on the kendo-ui-license.js button should not attempt to download multiple files of the same type at once

Environment

• Kendo UI version: 2022.3.1109
• Browser: [all]

Bug report

Horizontal and vertical lines appear in the merged Spreadsheet cells when they are disabled.

** Possible workaround could be to apply the following CSS:

      #spreadsheet > div.k-spreadsheet-view > div.k-spreadsheet-fixed-container > div.k-spreadsheet-pane > div.k-spreadsheet-data > div.k-state-disabled {
        opacity: 1;
        color: #a3a3a3;
      }

Reproduction of the problem

1. Open this Dojo and run it
2. There are is a horizontal line above the cell with text "Merged DISABLED cell and there is a horizontal line above". There is a vertical line inside the cell with text "Two cells are merged horizontally and the result cell is disabled. There is a vertical line that should not appear"

Current behavior

When Spreadsheet cells are merged and the result cell is disabled, there are horizontal or vertical lines that appear inside the merged cell.

Expected/desired behavior

No lines should appear inside the merged cells, no matter if they are enabled or disabled.

Environment

• Kendo UI version: 2020.3.1021
• jQuery version: x.y
• Browser: [all]

Hello, I have been using your service for almost a year and I noticed that your search engine could be significantly improved.

For example, I asked the following question in the forum on 18/10/2022:

"org chart editable.fields => set editable: false doesn't work"

And indeed I received an adequate response,

Then I tried to type this question into the browser but I couldn't find it,

Unlike if I were to ask such a question in Stack Over Flow then I would surely find my question through Google's smart search engine.

You have a huge database of questions and answers but it is a bit difficult to find what you want.

If a user can find questions asked by other users by simply typing in the browser, you will be able to provide a much greater response to customers.

Hope I explained myself clearly.

Hello Kendo UI Team, 

I found one bug regarding the multidrop down selection while we want to add new on search text we enter some text and than after click on clear button and click on the add new button text is saved.

I attached one video for the same so you can easily find the issue.

Thanks & Regards.

Bug report

When the WebPack 4 is used with Kendo version 2022.2.802 the following error is thrown in the console:

webpack_modules[moduleId] is not a function

Reproduction of the problem

1. Open the attached sample project
   webpack-demo-wb4.zip

2. Run 'npm install' and 'npm start' and check the browser console.

Current behavior

An error: webpack_modules[moduleId] is not a function is thrown .

Note: The latest Kendo version can be used without any issues with WebPack 5.

Expected/desired behavior

There should be no error and the app should run without any issues with Kendo version 2022.2.802 and WebPack 4

Environment

• Kendo UI version: 2022.2.802
• Browser: [all ]

Hello kendoUI Team,

I am 98% sure the following is a bug: https://dojo.telerik.com/UZuKImUs/2

In this Dojo link, the AM/PM designators are logged to the console for the cultures en-US and de-DE. They appear to be empty for de-DE. Consequently, a custom format string "yyyy.MM.dd hh:mm:ss tt" will result in a formatted Date without the AM/PM designator at the end for the de-DE culture, instead ending with a trailing whitespace (i.e. the whitespace between "ss" and "tt" in the format string).

The JS console output for this Dojo code is:

AM designator(s) for en-US culture: AM, am, AM
PM designator(s) for en-US culture: PM, pm, PM
Format "yyyy.MM.dd hh:mm:ss tt" for en-US culture: "2011.01.01 12:27:36 PM"
AM designator(s) for de-DE culture:
PM designator(s) for de-DE culture:
Format "yyyy.MM.dd hh:mm:ss tt" for de-DE culture: "2011.01.01 12:27:36 "

Contrast this with the following equivalent .NET snippet:

using System.Globalization;

var testDate = new DateTime(2011, 1, 1, 12, 27, 36, 952);
var dateTimeTestFormat = "yyyy.MM.dd hh:mm:ss tt";

Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");
Console.WriteLine($"AM designator(s) for en-US culture: {Thread.CurrentThread.CurrentCulture.DateTimeFormat.AMDesignator}");
Console.WriteLine($"PM designator(s) for en-US culture: {Thread.CurrentThread.CurrentCulture.DateTimeFormat.AMDesignator}");
Console.WriteLine($"Format \"{dateTimeTestFormat}\" for en-US culture: {testDate.ToString(dateTimeTestFormat)}");

Thread.CurrentThread.CurrentCulture = new CultureInfo("de-DE");
Console.WriteLine($"AM designator(s) for de-DE culture: {Thread.CurrentThread.CurrentCulture.DateTimeFormat.AMDesignator}");
Console.WriteLine($"PM designator(s) for de-DE culture: {Thread.CurrentThread.CurrentCulture.DateTimeFormat.AMDesignator}");
Console.WriteLine($"Format \"{dateTimeTestFormat}\" for de-DE culture: {testDate.ToString(dateTimeTestFormat)}");

The output of this C# code is:

AM designator(s) for en-US culture: AM
PM designator(s) for en-US culture: AM
Format "yyyy.MM.dd hh:mm:ss tt" for en-US culture: 2011.01.01 12:27:36 PM
AM designator(s) for de-DE culture: AM
PM designator(s) for de-DE culture: AM
Format "yyyy.MM.dd hh:mm:ss tt" for de-DE culture: 2011.01.01 12:27:36 PM

While I am aware that kendo.culture cannot be a carbon copy of .NET's CultureInfo, I'm pretty sure that the missing AM/PM designators for the "de-DE" culture (possibly for others as well!) are an oversight in this particular case.

Bug report

The workbook exporting to Excel generates a corrupted file when the name of some of its sheets contains a "cell-related" value - for example, "A1", "G5", "F45", etc.

Reproduction of the problem

1. Open this Dojo project and run it
2. Save the exported Excel file and open it.

Current behavior

When the saved file is opened in Excel, a "corrupted file" warning appears on the screen.

Expected/desired behavior

There shouldn't be any warnings when opening a saved workbook

Environment

• Kendo UI version: 2019.3.1023
• jQuery version: x.y
• Browser: [all]

There are several problems when extending a widget .
In this example we have extended the DropDownTree.

1. Some properties like fillMode, no matter if we set in in the options or in the extended widget it self (kendoDemoDropDownTree)
   sets the value but never actually applies. Also the dataSource must be in the following format 
   
   

selectedProductId: [{ id: "a" }, { id: "c" }],

and  not

selectedProductId: ["b", "c"]

So some properties are supported and other that have been added later not.

I present you the source code (https://dojo.telerik.com/ewewERiD)

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>Untitled</title>

    <script src="https://code.jquery.com/jquery-1.12.3.min.js"></script>
    <script src="https://kendo.cdn.telerik.com/2022.2.510/js/angular.min.js"></script>
    <script src="https://kendo.cdn.telerik.com/2022.2.510/js/jszip.min.js"></script>
    <script src="https://kendo.cdn.telerik.com/2022.2.510/js/kendo.all.min.js"></script>
    <link rel="stylesheet" href="https://kendo.cdn.telerik.com/2022.2.510/styles/kendo.default-ocean-blue.min.css">
</head>
<body>

<input id="dropdowntreeExt" data-bind="value: selectedProductId">
<script>
    (function ($) {
        var kendo = window.kendo,
            ui = kendo.ui,
            DropDownTree = ui.DropDownTree;

        var DemoDropDownTree = DropDownTree.extend({
            init: function (element, options) {
                DropDownTree.fn.init.call(this, element, options);

                $(element).parent().addClass("k-picker-solid k-picker k-rounded");
            },

            options: {
                name: "DemoDropDownTree",
                checkboxes: true,
                fillMode: "flat"
            }
        });
        ui.plugin(DemoDropDownTree);
    })(jQuery);


    var viewModel = kendo.observable({
        selectedProductId: [{ id: "a" }, { id: "c" }],
        //selectedProductId: ["b", "c"],
        products: [
            { id: "a", name: "Coffee" },
            { id: "b", name: "Tea" },
            { id: "c", name: "Juice" }
        ]
    });

    kendo.bind($("#dropdowntreeExt"), viewModel);

    //kendoDemoDropDownTree
    //kendoDropDownTree
    $("#dropdowntreeExt").kendoDemoDropDownTree({
        valuePrimitive: true,
        dataTextField: "name",
        dataValueField: "id",
        //checkboxes: true,
        dataSource: viewModel.products//,
        //fillMode: "flat"
    });


    alert($("#dropdowntreeExt").data("kendoDemoDropDownTree").options['fillMode']);
    </script>
</body>
</html>

(!) This also applies in the latest versions as well (2022R2 and 2022R3).

2. if you place the properties in kendoDropDownTree, everything works well and the datasource also accepts the format selectedProductId: ["b", "c"]

3. Many options, like autoWidth property, don't apply in extended widgets (i.e.  MultiSelect, DropDownList, DropDownTree etc).

4, In DropDownTree for the extended widget, valuePrimitive: true is not applicable. Instead of returning an array of the selected keys, it returns an array of the entire item.

If you create a spreadsheet in excel and just have the below formula - it locks up when you activate the sheet. 

Or if you use the kendo spreadsheet and paste this into a cell, it also locks up.

=WORKDAY(TODAY(),-1)