Hi sivagelli,
Thank you for your reply.
I am tryng to get the string that are between the brackets.
In fact, i want to pass through the process a variable. This var could be 1.0, 2.0, 3.0, 4.0, 5.0, or 6.0
And I know that if I put in params only “treeviewItem[3.0” I should get only one...