Changing collection in backbone marionette CompositeView

Question

Actually I want to change my entire collection in an existing Marionette CompositeView without creating new object for that view.

I am not able to find method for this purpose I have read the documents here

Answer 1

You should be able to do that by using the collection's reset method (http://backbonejs.org/#Collection-reset):

myView.collection.reset(models)

Where myView is your composite view instance, and models is an array of the models you want to have in the collection.