Dear Sir, In order to understand the concept of collections, I am trying on the company vehicles file given in the tdl samples. I want to display a simple report based on the values in the collection. It is not giving the desired results. There is a sample file which uses company vehicles collection. I tried to display this collection, but it is not working. I am attaching the file herewith. Also I want to create a form for user input to add new values to the existing collection. Please let me know how add a command to a data entry screen so that the value from the form is added to the existing collection.