2021.3.1207 Gantt's "Cannot read properties of undefined (reading 'get')" bug without update version

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Gantt
Oner
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Oner asked on 31 May 2024, 01:56 PM
I'm using Kendo UI R3 2021 SP2 (version 2021.3.1207). There is a bug in the Gantt component (https://github.com/telerik/kendo-ui-core/issues/6547). This bug has been fixed in Kendo UI R1 2022 SP1 (version 2022.1.301), but I cannot upgrade to the new version due to rendering issues. How can I fix the Gantt issue while staying on version 2021.3.1207?

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Nikolay
Telerik team
answered on 05 Jun 2024, 09:19 AM
Hi Oner,

You can add the following line in the source code to have the fix:

kendo.gantt.js L369C9
       clearSelection: function() {
            this.list.clearSelection();
            this._selectionUpdate();
        },

Please note this approach is not recommended and it is best if you upgrade your project to a newer version and have the fix out of the box.

Regards,
Nikolay

Regards,
Nikolay
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Gantt
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Oner
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Nikolay
Telerik team
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