Re: {Disarmed} Re: {Disarmed} [flexcoders] Data Paging a la Matt Chotin for Flex 2.1

2007-05-23 Thread Jurgen Beck 
I hear ya! I haven't run across any other references, but that is not to 
say that someone hasn't done it.


Matt may be aware of an updated implementation. Matt?

Jurgen

Shaun wrote:


Jurgen,

Thanks for the tip.  I checked them out, but unfortunately, those 
implementations don't address my main issue: getting the data from the 
/server/ in a paged fashion.  They simply allow you to view an 
arraycollection in chunks, where Matt's goes back to the server as 
needed to get chunks of the data. 


With 150k records, I need the on demand paging.

Shaun


--- In flexcoders@yahoogroups.com, Jurgen Beck [EMAIL PROTECTED] wrote:

 Hey Shaun,

 You may want to check out the FlexBox components list. There are two
 components, one for a paged DataGrid, the other one for a paged
 ArrayCollection.

 http://flexbox.mrinalwadhwa.com/

 Jurgen

 Shaun wrote:
 
  I am getting ready to implement a report for a project that requires
  the user to be able to sift through a maximum of 150,000 records 
from a
  table (yes, we all know that in reality this is ridiculous, but we 
also

  know that customers get what customers want).
 
  I read through Matt Chotin's posts on large datasets and will 
likely go

  down that path, but I'm in a time cruch and so the hope of saving some
  time, I am curious as to whether anyone has already ported his samples
  to 2.1 as they are from way back in 04.
 
  Or, if anyone has a better option, I'm all ears.
 
  Thanks,
  Shaun
 
  Matt's post:
  
http://weblogs.macromedia.com/mchotin/archives/2004/05/large_data_sets_2
  
http://weblogs.macromedia.com/mchotin/archives/2004/05/large_data_sets_2

  .cfm

Re: {Disarmed} Re: {Disarmed} [flexcoders] Data Paging a la Matt Chotin for Flex 2.1

2007-05-23 Thread Jurgen Beck 
WebORB for .NET Standard (free) was just updated to include AFM3 doing 
RPC. You may have an easier time implementing your paged solution with it.


May be worth taking a second look at it.

Jurgen

Shaun wrote:


Aww, what about us non-FDS guys, Matt? :-( Protecting the FDS
revenue stream I take it? Actually, I would love to use FDS, but
unfortunately this app requires a .NET backend and doesn't have the
budget for FDS or WebOrb anyway.

Oh well, time to start coding... :-)
Shaun

--- In flexcoders@yahoogroups.com 
mailto:flexcoders%40yahoogroups.com, Matt Chotin [EMAIL PROTECTED] wrote:


 FDS will do some of this work for you automatically, one reason why
we
 didn't write an updated version of the blog post :-)

 

 From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com 
mailto:flexcoders%40yahoogroups.com] On

 Behalf Of Shaun
 Sent: Wednesday, May 23, 2007 2:32 PM
 To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
 Subject: Re: {Disarmed} [flexcoders] Data Paging a la Matt Chotin
for
 Flex 2.1



 Jurgen,

 Thanks for the tip. I checked them out, but unfortunately, those
 implementations don't address my main issue: getting the data from
the
 server in a paged fashion. They simply allow you to view an
 arraycollection in chunks, where Matt's goes back to the server as
 needed to get chunks of the data.

 With 150k records, I need the on demand paging.

 Shaun


 --- In flexcoders@yahoogroups.com 
mailto:flexcoders%40yahoogroups.com, Jurgen Beck jurgen@ wrote:

 
  Hey Shaun,
 
  You may want to check out the FlexBox components list. There are
two
  components, one for a paged DataGrid, the other one for a paged
  ArrayCollection.
 
  http://flexbox.mrinalwadhwa.com/ http://flexbox.mrinalwadhwa.com/
 
  Jurgen
 
  Shaun wrote:
  
   I am getting ready to implement a report for a project that
requires
   the user to be able to sift through a maximum of 150,000 records
 from a
   table (yes, we all know that in reality this is ridiculous, but
we
 also
   know that customers get what customers want).
  
   I read through Matt Chotin's posts on large datasets and will
likely
 go
   down that path, but I'm in a time cruch and so the hope of
saving
 some
   time, I am curious as to whether anyone has already ported ! his
 samples
   to 2.1 as they are from way back in 04.
  
   Or, if anyone has a better option, I'm all ears.
  
   Thanks,
   Shaun
  
   Matt's post:
  

http://weblogs.macromedia.com/mchotin/archives/2004/05/large_data_sets 
http://weblogs.macromedia.com/mchotin/archives/2004/05/large_data_sets

_2

  

http://weblogs.macromedia.com/mchotin/archives/2004/05/large_data_set 
http://weblogs.macromedia.com/mchotin/archives/2004/05/large_data_set

s_
 2
   .cfm

Re: {Disarmed} RE: {Disarmed} [flexcoders] Data Paging a la Matt Chotin for Flex 2.1

2007-05-23 Thread Jurgen Beck 
Additionally, if you're doing this in .NET you could let your class 
library handle the paging and simply just move the current recordset to 
Flex as a List Of objects collection. All you would need to do then is 
to tell your remote object where you are at in the list and if you are 
resorting any of the columns. You should be able to do any resorting and 
grabbing of sets of records completely on the .NET side.


Jurgen

Matt Chotin wrote:


The key to this is write an implementation of IList that throws 
ItemPendingErrors and then does the loading for you.  You then pass 
that IList to aListCollectionView and away you go.  Keep in mind that 
if you attempt to sort or filter the ListCollectionView will try to 
load all of your data, so you'll need to do your own work to have that 
passed through (which may mean subclassing LCV or writing your own 
impl of ICollectionView if this is important to you).
 
Matt



*From:* flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] 
*On Behalf Of *Shaun

*Sent:* Wednesday, May 23, 2007 2:58 PM
*To:* flexcoders@yahoogroups.com
*Subject:* Re: {Disarmed} [flexcoders] Data Paging a la Matt Chotin 
for Flex 2.1


Aww, what about us non-FDS guys, Matt? :-( Protecting the FDS
revenue stream I take it? Actually, I would love to use FDS, but
unfortunately this app requires a .NET backend and doesn't have the
budget for FDS or WebOrb anyway.

Oh well, time to start coding... :-)
Shaun

--- In flexcoders@yahoogroups.com 
mailto:flexcoders%40yahoogroups.com, Matt Chotin [EMAIL PROTECTED] wrote:


 FDS will do some of this work for you automatically, one reason why
we
 didn't write an updated version of the blog post :-)

 

 From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com 
mailto:flexcoders%40yahoogroups.com] On

 Behalf Of Shaun
 Sent: Wednesday, May 23, 2007 2:32 PM
 To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
 Subject: Re: {Disarmed} [flexcoders] Data Paging a la Matt Chotin
for
 Flex 2.1



 Jurgen,

 Thanks for the tip. I checked them out, but unfortunately, those
 implementations don't address my main issue: getting the data from
the
 server in a paged fashion. They simply allow you to view an
 arraycollection in chunks, where Matt's goes back to the server as
 needed to get chunks of the data.

 With 150k records, I need the on demand paging.

 Shaun


 --- In flexcoders@yahoogroups.com 
mailto:flexcoders%40yahoogroups.com, Jurgen Beck jurgen@ wrote:

 
  Hey Shaun,
 
  You may want to check out the FlexBox components list. There are
two
  components, one for a paged DataGrid, the other one for a paged
  ArrayCollection.
 
  http://flexbox.mrinalwadhwa.com/ http://flexbox.mrinalwadhwa.com/
 
  Jurgen
 
  Shaun wrote:
  
   I am getting ready to implement a report for a project that
requires
   the user to be able to sift through a maximum of 150,000 records
 from a
   table (yes, we all know that in reality this is ridiculous, but
we
 also
   know that customers get what customers want).
  
   I read through Matt Chotin's posts on large datasets and will
likely
 go
   down that path, but I'm in a time cruch and so the hope of
saving
 some
   time, I am curious as to whether anyone has already ported ! his
 samples
   to 2.1 as they are from way back in 04.
  
   Or, if anyone has a better option, I'm all ears.
  
   Thanks,
   Shaun
  
   Matt's post:
  

http://weblogs.macromedia.com/mchotin/archives/2004/05/large_data_sets 
http://weblogs.macromedia.com/mchotin/archives/2004/05/large_data_sets

_2

  

http://weblogs.macromedia.com/mchotin/archives/2004/05/large_data_set 
http://weblogs.macromedia.com/mchotin/archives/2004/05/large_data_set

s_
 2
   .cfm

Re: {Disarmed} RE: {Disarmed} [flexcoders] Data Paging a la Matt Chotin for Flex 2.1

2007-05-23 Thread Shaun 
Thanks for the direction, Matt and Jurgen. I now have a plan of 
attack for tomorrow.

Shaun


--- In flexcoders@yahoogroups.com, Jurgen Beck [EMAIL PROTECTED] wrote:

 Additionally, if you're doing this in .NET you could let your class 
 library handle the paging and simply just move the current 
recordset to 
 Flex as a List Of objects collection. All you would need to do then 
is 
 to tell your remote object where you are at in the list and if you 
are 
 resorting any of the columns. You should be able to do any 
resorting and 
 grabbing of sets of records completely on the .NET side.
 
 Jurgen
 
 Matt Chotin wrote:
 
  The key to this is write an implementation of IList that throws 
  ItemPendingErrors and then does the loading for you.  You then 
pass 
  that IList to aListCollectionView and away you go.  Keep in mind 
that 
  if you attempt to sort or filter the ListCollectionView will try 
to 
  load all of your data, so you'll need to do your own work to have 
that 
  passed through (which may mean subclassing LCV or writing your 
own 
  impl of ICollectionView if this is important to you).
   
  Matt
 
  --
--
  *From:* flexcoders@yahoogroups.com 
[mailto:[EMAIL PROTECTED] 
  *On Behalf Of *Shaun
  *Sent:* Wednesday, May 23, 2007 2:58 PM
  *To:* flexcoders@yahoogroups.com
  *Subject:* Re: {Disarmed} [flexcoders] Data Paging a la Matt 
Chotin 
  for Flex 2.1
 
  Aww, what about us non-FDS guys, Matt? :-( Protecting the FDS
  revenue stream I take it? Actually, I would love to use FDS, but
  unfortunately this app requires a .NET backend and doesn't have 
the
  budget for FDS or WebOrb anyway.
 
  Oh well, time to start coding... :-)
  Shaun
 
  --- In flexcoders@yahoogroups.com 
  mailto:flexcoders%40yahoogroups.com, Matt Chotin mchotin@ 
wrote:
  
   FDS will do some of this work for you automatically, one reason 
why
  we
   didn't write an updated version of the blog post :-)
  
   
  
   From: flexcoders@yahoogroups.com mailto:flexcoders%
40yahoogroups.com
  [mailto:flexcoders@yahoogroups.com 
  mailto:flexcoders%40yahoogroups.com] On
   Behalf Of Shaun
   Sent: Wednesday, May 23, 2007 2:32 PM
   To: flexcoders@yahoogroups.com mailto:flexcoders%
40yahoogroups.com
   Subject: Re: {Disarmed} [flexcoders] Data Paging a la Matt 
Chotin
  for
   Flex 2.1
  
  
  
   Jurgen,
  
   Thanks for the tip. I checked them out, but unfortunately, those
   implementations don't address my main issue: getting the data 
from
  the
   server in a paged fashion. They simply allow you to view an
   arraycollection in chunks, where Matt's goes back to the server 
as
   needed to get chunks of the data.
  
   With 150k records, I need the on demand paging.
  
   Shaun
  
  
   --- In flexcoders@yahoogroups.com 
  mailto:flexcoders%40yahoogroups.com, Jurgen Beck jurgen@ 
wrote:
   
Hey Shaun,
   
You may want to check out the FlexBox components list. There 
are
  two
components, one for a paged DataGrid, the other one for a 
paged
ArrayCollection.
   
http://flexbox.mrinalwadhwa.com/ 
http://flexbox.mrinalwadhwa.com/
   
Jurgen
   
Shaun wrote:

 I am getting ready to implement a report for a project that
  requires
 the user to be able to sift through a maximum of 150,000 
records
   from a
 table (yes, we all know that in reality this is ridiculous, 
but
  we
   also
 know that customers get what customers want).

 I read through Matt Chotin's posts on large datasets and 
will
  likely
   go
 down that path, but I'm in a time cruch and so the hope of
  saving
   some
 time, I am curious as to whether anyone has already 
ported ! his
   samples
 to 2.1 as they are from way back in 04.

 Or, if anyone has a better option, I'm all ears.

 Thanks,
 Shaun

 Matt's post:

  
  
http://weblogs.macromedia.com/mchotin/archives/2004/05/large_data_sets
 
  
http://weblogs.macromedia.com/mchotin/archives/2004/05/large_data_set
s
  _2
  

  
  
http://weblogs.macromedia.com/mchotin/archives/2004/05/large_data_set
 
  
http://weblogs.macromedia.com/mchotin/archives/2004/05/large_data_set

  s_
   2
 .cfm