Hi Tomasz,
Sorry for the inconvenience.
At present, this the default UI of drag and drop field in Tree Grid. Using queryCellInfo event, we can customize the border of Tree Grid drag and drop field for your requirement.
Please find following code snippet below:
queryCellInfo: function (args: any) {
if (args.column.field === 'TaskID') {
args.cell.style.borderLeftWidth = '1px';
}
} |
We have also prepared the sample for your reference
Please let us know, if you need further details on this.
Regards,
Jesus Arockia Sankaran S