Hi Sumeet,
Thanks for your information.
I found the way to add the next level nodes. The Tree i have crated is of value node and to add the third level child node the second level child node should be in expand mode to add the third level and the issue for which this thread is solved.
But we have one concern, the tree view is getting displayed as columns and the in the first column the FOLDER ICON is getting displayed and in the second column the root node is getting displayed.
The title of the first column is getting replicated same as title of last column, For e.g. if the title of last column is 'Column 4' then the title of the column which is having the folder icon also having the title 'Column 4'.
Please help us where we can control the title of the first column.
Regards,
Sathiya.