Hi Ton That Hung,
Query#:- In my project, this content is important, I want
to show full content, so I need to make the box of frozen able to scroll.
In EJ2
TreeGrid, we have rendered frozen columns in separate tables. It has a fixed
width and it is un-scrollable. We can scroll only the movable columns of
the TreeGrid.
To achieve your requirement,(show full content of the
column), we suggest to use autoFitColumns method of the TreeGrid which
shows the content without wrapping/hiding.
Documentation link:- https://ej2.syncfusion.com/react/documentation/treegrid/columns/#autofit-specific-columns
https://ej2.syncfusion.com/react/documentation/api/treegrid/#autofitcolumns
Sample link:- https://stackblitz.com/edit/react-txa8go-p27kmx?file=index.js,data.js
Otherwise, you can use clipMode property of columns
with EllipsisWithTooltip to show the content on Tooltip on Hover.
https://ej2.syncfusion.com/react/documentation/treegrid/cell/#clip-mode
Please get back to us if you need any further assistance.
Regards,
Farveen sulthana T