The multiSelect supports several keyboard shortcuts as documented in https://demos.telerik.com/kendo-ui/multiselect/keyboard-navigation. However, when e.g. a KeyDown event is triggered (and handled) by the widget, its propagation is not stopped. This behavior can be witnessed in this DOJO.

In our case, we e.g. use multiSelects inside dialog windows that can be closed via ESC. When pressing ESC while a multiSelect is focused and open, this not only closes the multiSelect (as expected), but also closes the dialog.

The multiSelect should stop the propagation of events that it handled.

The documentation for the Kendo UI MultiSelect widget states that the user can highlight the next/previous item using RIGHT/LEFT when the selection popup is closed. This works as expected. However, if the user then presses TAB and moves the focus somewhere else, the item remains highlighted.

Since the highlight only indicates that certain actions can be executed on the item, it should be removed in such a case as the actions are no longer executable. This can easily be reproduced with the keyboard navigation sample:

• Select a few items
• press LEFT
• press TAB

Bug report

Reproduction of the problem

Reproducible in the demos on mobile devices or in Chrome's emulator.
Screencast.

1. Tap over the MultiSelect input area and drag to scroll the page.

Current behavior

The dropdown opens and a js exception is thrown:

"Ignored attempt to cancel a touchend event with cancelable=false, for example because scrolling is in progress and cannot be interrupted."

Expected/desired behavior

The dropdown does not open (similarly to the way the DropDownList behaves in the same scenario).

Environment

• Kendo UI version: 2019.2.514
• jQuery version: x.y
• Browser: [Mobile Chrome XX ]

When using the Multiselect with Javascript Api in following order:

- Disable

- Select

- Enable

The Multiselect Control is enabled, but the Items are still disabled and therefore cannot be removed by the X.

Can be reproduced in the official demo (see Screenshot): https://demos.telerik.com/kendo-ui/multiselect/api

Hi Team,

I would like to request being able to add new items into the MultiSelect and saving them per user.  

It has become clear that while this control allows a user to add custom entries not currently in the pre-defined list, it appears they can't later be loaded, like when a user saves choices, including custom entries.

I've never seen a scenario where a user enters input into a control and later doesn't need to see what they enter (saved to a Db).

Therefore, the MultiSelect demo which allows you to add custom entries, but can't later display them represents an unrealistic scenario and I recommend at least adding a caveat to the page informing developers planning to use that feature of this limitation.

I like the MultiSelect and use it in many places, but since the custom add feature won't support common usage (later display what they type), I recommend this feature not be displayed as a demo until it's ready.

For example, it should accept as a property a string, delimited by commas, custom entries.

It would then iterate through custom entries and where it doesn't match, add them for you.

Thank you.

Bug report

In MultiSelect when the value is set initially and the mapValueTo option is set to 'dataItem', if the user first open and close the popup, the last item can not be removed and an error 'c.select(...).done is not a function' is thrown.

Reproduction of the problem

1. Open the Dojo example. - https://dojo.telerik.com/@NeliKondova/UCesAQen
2. Open the popup and scroll to the "Hungry Owl All-Night Grocers" item
3. Close the popup
4. Try to remove the "Hungry Owl All-Night Grocers" from the input

As the Dojo above does not use a remote valueMapper below is a sample project where a remote valueMapper method is implemented
WebApplication3.zip

Current behavior

The last item can not be removed and an error 'c.select(...).done is not a function' is thrown in the browser`s console.
The other items except the last one can be removed as expected. Also, all items can be removed initially in case the popup has not been opened and scrolled to the last item from the value.

Expected/desired behavior

It should be possible to remove all items displayed in the MultiSelect input, even in a scenario where the popup has been opened and closed.

Environment

• Kendo UI version: 2023.2.606
• Browser: [all ]

Bug report

MultiSelect e.preventDefault() does not work in change event when selecting/deselecting items with Ctrl+A or Chift+Arrow

Reproduction of the problem

• Run the following Dojo: https://dojo.telerik.com/unEhoVAS/3
• Click in the MS input
• Press CTRL+A - all items will be selected

Expected/desired behavior

No items should be selected as e.preventDefault() is called in the select event.

Environment

• Kendo UI version: 2021.1.330
• Browser: [all ]

Similarly to the feedback listed in https://feedback.telerik.com/kendo-jquery-ui/1560733-multiselect-keyboard-events-bubble-although-already-handled#:~:text=The%20approach%20described%20in%20order%20to%20prevent%2Foverwrite%20the,well%3A%20kendo.ui.MultiSelect.fn._keydown%20%3D%20function%28e%29%20%7B%20e.preventDefault%20%28%29%20%7D%3B

I am exploring using a multiselect box within a window.  If I choose to not allow the multiselect to autoClose, hitting the escape key will close the multiselect, but the event will continue to bubble up and will close the window.  Ideally, the multiselect should close its panel, but the window it is embedded on should not.

One solution to this problem is to add a handler for the close event on the window, however there is currently no way to determine if the close event is being triggered by clicking the close button on the window, or from an escape character (e.userTriggered does not go far enough to differentiate).  I would like the user to be able to click the close button manually to close the dialog, but not necessarily use the keyboard Escape key.  See:  https://docs.telerik.com/kendo-ui/api/javascript/ui/window/events/close

The following solution as mentioned in the feedback link above, can be used to stop the propagation of the Escape key globally, but this then breaks all other keyboard actions (which is bad from a usability standpoint).  Is there any way to add this functionality?  From looking at the source (which we have as part of our subscription), simply adding e.stopPropagation() when responding to the ESC key in the _keydown function of kendo.multiselect.js would be enough to fix this issue.

kendo.ui.MultiSelect.fn._keydown = function (e) {
   if (e.which === 27) {
      e.stopPropagation();
   }
}

Thanks.

Hi Team,

I would like to request a built-in functionality to have the Kendo UI MultiSelect to select and deselect all items.  Perhaps a checkbox or specific button within would be great.

Thank you!

Bug report

If the MultiSelect open event is prevented, the animation container has display:block style, blocking inputs beneath the MultiSelect

Reproduction of the problem

1. Open this example - https://dojo.telerik.com/EqOSOReM/38
2. Type something in the MultiSelect and blur, without selecting an item.
3. Focus the MultiSelect again
4. Try to focus the input beneath

Regression introduced with 2022.2.621

Workaround: manually hide the animation container - https://dojo.telerik.com/EqOSOReM/38

Current behavior

The k-animation-container has display:block style, preventing the input beneath it from being focused

Expected/desired behavior

The k-animation-container should have display:none style.

Environment

• Kendo UI version: 2023.1.117
• Browser: [all]

Editor components like the pickers, textboxes, etc. use an internal <input> element while submitting to get their value from. This value shows up in form.serialize() even when no value selected/provided.

Bug report

In IE 11, MultiSelect with autoClose:false does not prevent the popup from closing. The widget has to be placed at the bottom of the page, so that there is no space for the popup to open below the input field.

Reproduction of the problem

1. Open this Dojo example.
2. Scroll to the bottom of the page.
3. Start selecting items until the tags do not fit the input field.
4. When the input's height expands, the popup closes.

Current behavior

The popup closes when the height of the input field expands to fit tags on a new line.

Expected/desired behavior

The popup should remain open.

Environment

• Kendo UI version: 2020.1.219
• Browser: [Internet Explorer 11]

Bug report

If you filter the MultiSelect and then blur it, a read request occurs that retrieves all the data. Then, if you open the MultiSelect, another read request triggers with the same data as response

Reproduction of the problem

1. Open the Server Filtering Demo - https://demos.telerik.com/kendo-ui/multiselect/serverfiltering
2. Open the DevTools network tab and type some text to filter the data, e.g. "Cha"
3. Select an item from the filtered data and blur the input - a read request occurs that returns the entire data.
4. Open the MultiSelect again - the same read request with the same data occurs.

Current behavior

Duplicated read request occurs when you blur and reopen the MultiSelect

Expected/desired behavior

No duplicated read requests should occur.

Environment

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

Bug report

When the value of the widget is set in the dataBound event handler the filtering events is fired and e.filter is undefined

Reproduction of the problem

1. Open the Dojo
2. Open the browser console and type something in the MultiSelect to filter the data.

Current behavior

The filtering event is fired a second time and the second time the e.filter is undefined.

Expected/desired behavior

Double-checlk if the filtering event should be fired a second time.
The e.filter and e.sender.dataSource.filter().filters[0] should return the same value.

Environment

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

Bug report

An error occurs when filtering the MultiSelect with grouping enabled.

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/IJErEZiD
2. Open the MultiSelect and scroll down a bit.
3. Type "w" so that the No Data Template would appear.

Current behavior

An error occurs on the browser console.

Expected/desired behavior

No errors should occur when filtering the component.

Environment

• Kendo UI version: 2022.3.913
• Browser: [all]

Bug report

The "aria-setsize" attribute is missing when initializing a MultiSelect with default selected values in AngularJS

Reproduction of the problem

1. Open this Dojo and run it
2. Right-click on one of the initially selected items in the MultiSelect.
3. The selected DOM element will be a "li" tag
4. Select a new item in the MultiSelect and watch how the definition of the "li" tag will change
5. When selecting a third element in the MultiSelect. All the three "li" tags will receive an aria-setsize="3" tag, which wasn't presented for the default selected values

Current behavior

When initializing a MultiSelect with default values, the aria-setsize attribute is missing for these values.

Expected/desired behavior

The default MultiSelect values should have an aria-setsize attribute added to their selected values

Environment

• Kendo UI version: 2019.2.619
• jQuery version: x.y
• Browser: [all]

Bug report

Currently, the MultiSelect input does not have a placeholder attribute in its rendering. This leads to inconsistency with the other input components such as AutoComplete and ComboBox.

Reproduction of the problem

1. Open the Dojo example and inspect the rendering of the two components.

Current behavior

Currently, the MultiSelect 'input.k-input-inner' element does not have a placeholder attribute. As a consequence, the color of the placeholder is slightly different than the rest of the input widgets.

Expected/desired behavior

The MultiSelect widgets should have a placeholder attribute in order to be consistent with the rest of the widgets such as AutoComplete and ComboBox

Environment

• Kendo UI version: 2022.2.510
• Browser: [all]

Bug report

When MultiSelect is used inside Grid columns filter, it is closing immediately after clicked in the MultiSelect filter input.

Reproduction of the problem

1. Open the Knowledge Base article - https://docs.telerik.com/kendo-ui/knowledge-base/multiselect-used-for-column-filtering
2. Click on the 'Name' column filter icon to open the filter popup.
3. Click in the MultiSelect input filter.

Current behavior

The filter popup is closing first time when clicked. Next time when the filter popup is opened it is not rendered properly.

Expected/desired behavior

The filter popup should not be closed when clicking in the Multiselect filter input. The MultiSelect list items should be rendered below the filter input.

The issue is a regression introduced in 2022.1.301 with the following commit telerik/kendo@bb73744

Environment

• Kendo UI version: 2022.2.512
• Browser: [all ]

Bug report

When there are items selected in the MultiSelect and the close icon is clicked the popup is opened for a moment

Reproduction of the problem

1. Open the Demo - https://demos.telerik.com/kendo-ui/multiselect/index
2. Click the close icon in the first MultiSelect

Current behavior

The popup is opened for a moment

Expected/desired behavior

The popup should not get opened unexpectedly.

The issue is a regression introduced in 2022.1.412 version with the following commit - telerik/kendo@7953a90

Environment

• Kendo UI version: 2022.2.512
• Browser: [all ]