How to shuffle on pageblocktable data?

Question

I have a pageblocktable with a bunch of products and i just want to shuffle each product in list,

Can anyone please suggest me the way how to implement this functionality in visualforce page and save it to the salesforce database ?

I DO NOT WANT ANY CODE HELP HERE JUST SUGGESTION

thanks a lot in advance !

Answer 1

The pageBlockTable component accepts a list of records to be rendered on the page, so I'd say that whatever you want to do to order those records you will need to act on the list.

In your controller you will have a list variable, and if you want to sort or shuffle it then you have to shuffle/sort this list of records.

Since you don't want any help with the code, then I suppose you already know how to do this.

Answer 2

You have to manipulate the list on the backend and re-render:

You'd basically need to create a true List data-structure.

Create a node class that stores the value as well as a reference to the preceding node and following node.

Create a List class that contains a reference to the first node in the list.

This list class should have a method that will follow the node chain and generate a SF compatible list that will be displayed on the page.

This list class should have a method that will crawl down the chain looking for the specified node, once found, it will determine direction (up or down) and grab the node that is relative to the selected on in that direction. The method should than flip the references around.

For instance, if you want to move an item down the list, grab the desired node grab the following node, set the desired node as the following node to the now preceding node, set the preceding node of the now preceding node to the preceding node of the now following node, set the preceding node of the now following node to the following node of the now preceding node

now, rerender.

gl;hf