Thanks for your reply.
1.Tab issue is solved.
2. I have requirement to select the row only when we click on number cell(first column).If I use selectionModel: { type: 'row'},then entire row gets selected on click of any cell.
3.I have hidden columns in the grid and I don't want to copy the hidden columns. Let me know is there any way to avoid the copying of hidden columns.
Thanks,
Ekanta