Re: [Rails] Re: Re: best ui toolkit?

On 13 January 2011 17:36, Walter Lee Davis <waltd@wdstudio.com> wrote:
>
> On Jan 13, 2011, at 10:27 AM, Mauro wrote:
>
>>> Or is something else confusing you?
>>
>> It's not clear to me how put data in the DOM and how to read.
>> Sorry for my ignorance.
>
>
> Whenever you have Rails create HTML content and serve it to the browser
> (i.e., pretty much all the time) you are putting that content into the DOM
> (Document Object Model) of the browser. Now if you place some content above
> the visible page using CSS, or simply set it to display:none, it will still
> be in the DOM, but it will be hiding and waiting for you to do something
> with it subsequently using JavaScript.
>
> In Prototype, you most easily access a single HTML element (like a DIV)
> using the $('theIdOfTheElement') shortcut for the native JS
> getElementById(id) construct.
>
> If you want to access a collection of elements that have the same tag name
> or classname or some other common denominator, you use $$('div.foo') or
> similar. That gets you an enumerable collection, which you iterate using
> each(), just like in Ruby.
>
> If you want to grab the content of a DIV, or show it from its hidden state,
> or make it bound around the window like a terrified mountain goat, you can
> do that once it's in the DOM.
>
> You can also access content from your server using an Ajax call, and either
> directly replace any element in the page, or use that content as variable
> data to further modify your page.
>
> I believe that jQuery is similar to Prototype in syntax and construction.
> You may find an easier path to answers by looking up the library
> documentation on their very glossy site.

that's a lot of work, only for using jqgrid.

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