Confirmation dialog and the MVVM pattern

[José F. Romaniello]

Hi everyone, I am doing my first steps in knockoutJs and I like it so
far.

Here is my problem, I have a form which has the submit binding is
bound to an function in the viewmodel. Yesterday we decide that we
need to show a confirmation dialog, before doing the ajax post.

A-So, my first question is conceptually speaking, if a "confirmation
dialog" is a view concern or a viewmodel concern?

My thoughts on this, is that it is a presentation concern so I tried
to keep this out from my viewmodel-

And I decide to do something like this http://jsfiddle.net/fNCBa/7/
(it is not working) instead of doing
data-bind="submit: save...",

I am doing:
data-bind="confirmAndSubmit: {template: '#MyConfirmTemplate', data:
items, submit: save}"

B-Does this seems right?
C-If this is right, is there a way I can use knockout template engine
from my code.. to render the content of the dialog?
D-If this doesn't seem right, how would you do it?


Thank you very much!

[Scott Messinger]

I also put the alert/confirm dialog box in the save action in my viewmodel.

[iandra...@gmail.com]

Here a sample that should help, specifically the delete button functionality.  Though, your needs maybe more simple.

http://jsfiddle.net/cL557/2/

[José F. Romaniello]

Excelent! thank you very much you both... 

The final version of my example working is http://jsfiddle.net/U2wEh/23/ 

now we have three different approach for this

2011/8/11 <iandra...@gmail.com>