Thank you Frédéric & Evyatar, I'll try that and keep you informed on how
it went.
On 29/04/2013 15:46, Frédéric THOMAS wrote:
Or maybe overriding Datagrid->sortByColumns, not calling super and
simply returning false/true depending if you want them considered as
sorted or not;
-Fred
-----Message d'origine----- From: Evyatar Ben Halevi-Arbib
Sent: Monday, April 29, 2013 3:29 PM
To: [email protected]
Subject: Re: Re: Spark Datagrid backend sorting possible ?
It sounds like you just need to catch the column header mouse down event,
prevent default and execute your server calling code...
Good luck,
Evyatar
On Apr 29, 2013 4:03 PM, "Adnan Doric" <[email protected]> wrote:
Hey, thank you for trying to help.
In fact, I don't want to implement lazy loading, it is a lot simpler
then
that: I just want the DataGrid to avoid sorting all together and let me
populate "manually" the dataProvider.
Please take a look at the following Gist, it is a small example
illustrating the issue:
https://gist.github.com/**adnandoric/5481416<https://gist.github.com/adnandoric/5481416>
As you will see, the moment you click on the column header, DataGrid
immediately sort it even though I explicitly set the sortCompareFunction
that returns null. I'm probably doing it wrong.
What I would like is to have DataGrid not sorting or doing anything
at all
when I click on the header and let me handle the whole operation. At the
end, when data arrives from the backend, I would just need to adjust the
sortIndicator which is apparently possible using sortDescending,
thank you
for that information :)
So, what do you think about this ? Feel free to fork the gist :)
Thank you,
Adnan
On 29/04/2013 13:13, Julio Carneiro wrote:
Yes, James Ward PagedList is the way to go if you want lazyloading.
Also, if you're sorting in the backend there is no reason to set a Sort
again in your dataProvider.
You can simply set the sort indicators by using something like:
columnHeaderGroup.**visibleSortIndicatorIndices = new
<int>[_sortColumn];
Please not that visibleSortIndicatorIndices is a Vector, so if you are
sorting on multiple columns, you can set them all in the Vector.
As for the asc/desc indicators, you set them in the GridColumn
'sortDescending' property.
hth
julio
On Apr 29, 2013, at 7:41 AM, Tom Chiverton <[email protected]> wrote:
On 29/04/2013 10:56, Adnan Doric wrote:
Hello all,
I would like to be able to click on Datagrid headers and trigger
backend call in order to paginate/sort/filter and send back an
updated
collection. Datagrid should just display it as is.
How can this be done with data grid sort indicators correctly
reflecting the state "ASC" or "DESC"?
It's easier than you think.
If you are already backing this with a server result, drop in James
Ward's awesome PagedList connector to an AsyncListView as the
dataprovider
:
http://www.jamesward.com/2010/**10/11/data-paging-in-flex-4/<http://www.jamesward.com/2010/10/11/data-paging-in-flex-4/>
Now just send the sort direction along with the call to the
backend. You
can get this by listening for gridClick events with (event.rowIndex ==
-1)&&(event.columnIndex!=-1) and saving off the column name.
Applying a matching Sort to the local dataProvider and it'll show the
right indicators.
Tom
--
Julio Carneiro
