DblClick on TreeGrid group header error

Hello, snippet is there: DHTMLX Snippet Tool

After double click on row that is header of grouped data, there is JavaScript error.


Thank you for your report. The problem was confirmed. We’ll try to fix it in one of the future updates.
I’ll inform you about any progress on this issue.


We fixed your reported problem in the latest dhx.Suite update (v8.2.3).
You can check it in your original snippet.
Please, download the latest available dhx.Suite to get this fix.
Thank you for your report.