Passing a parameter to another view

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1

Hi All,

What is the best practice to pass a parameter to another view , E.g when a button is clicked.Currently we use button get/setText but I don’t think this is the right way.

Thanks
Atanas

2

Hi Atanas,

What are you referring to here when you say ‘parameter’? I imagine calling getText on a button you’ve clicked isn’t going to result in particularly useful information, for example?

Regards,

Nick.

3

Hi Nick,

Imagine I have a page1 which represent a list of items(each one represented as a button).I have a second view (page 2) as well and I want to pass item id from page1 to page 2 so that be able to keep track which item was clicked.

Currently it was implemented with get/setText so that when a button is clicked nUIEventCallback method that handles the sent event receive the button object with text which is the id of the item.

4

Hi Atanas,

I think the simpler alternative there is to reference the nuiid of the incoming object in the nUIEventCallback method. Assuming the buttons are being given incremental id’s (e.g. NUIID_MY_BUTTON_ID0, NUIID_MY_BUTTON_ID0 + 1, NUIID_MY_BUTTON_ID0 + 2, …), you could use this value to determine which button has been pressed. What you do with this value is then obviously up to you.

Regards,

Nick.

5

That is quite coupled with the order of items in the list.That would work if the list of items is static but I rather meant list which is populated dynamically at runtime.What is getText property of nUIButtonElement used for?

6

Hi Atanas
I made it in exactly the way Nick has described. I have an array of items (populated dynamically when the item list is shown), and based on it I build a list where each button gets NUIID = (NUIID_MY_BUTTON_ID0 + index) of the array item. Based on that index, when I click the button I make a transition to the “details” of the selected item.
When I go back from details view to the item list view, I refresh the list.

Best regards
Javier