Hide or Remove 'X' and 'Up / Down' button in Date inline editor

Is there any way to hide or remove ‘X’ and ‘Up / Down’ button in Date inline editorDate

Hello Vignesh,
The date inline editor uses the input Date element.

It is displayed differently in different browsers, and it is not controlled by Gantt.

If you want to change it, you need to create a custom inline editor and attach a custom element there:
https://docs.dhtmlx.com/gantt/desktop__inline_editing.html#typesofeditors
Here is an example with the DHTMLX DatePicker:
https://snippet.dhtmlx.com/5/67a0905ae