Nested datawindow within a nested datawindow
I have a report, that contains a datawindow, which itself contains a datawindow. Everything is working fine until the number of retrieved lines get's over about 1100 primary and over about 3200 retrieved nested lines. Although the task manager (I'm using Powerbuilder 7.0.3 on Windows 2000) shows me, that there is still enough free memory, the data retrieval stops and Powerbuilder (or the application which called the Retrieve() method) ends itself without any error message. That allways happens when the datawindow has allocated about 70 MB of virtual memory. (About 99% of those 70 MB are allocated during the retrieval of the nested lines.) Can you help me? Thanks in advance, Detlef
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Detlef
6/18/2001 2:30:36 PM
sybase.powerbuilder.datawindow
28057 articles. 
4 followers.
4 Replies
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That's not a high number of rows at all. You can try using the new feature in 703 to change memory management: dw_1.object.datawindow.storagepagesize='large' -- Terry Dykstra (TeamSybase) Please state PB / OS / DB versions in your post. MySybase http://my.sybase.com/mysybase Search Deja: http://www.pfcguide.com/_newsgroups/search.asp "Detlef Keil" <Detlef.Keil@MAPWARE.de> wrote in message news:En8UYZA#AHA.261@forums.sybase.com... > I have a report, that contains a datawindow, which itself contains a > datawindow. Everything is working fine until the number of retrieved lines > get's over about 1100 primary and over about 3200 retrieved nested lines. > Although the task manager (I'm using Powerbuilder 7.0.3 on Windows 2000) > shows me, that there is still enough free memory, the data retrieval stops > and Powerbuilder (or the application which called the Retrieve() method) > ends itself without any error message. That allways happens when the > datawindow has allocated about 70 MB of virtual memory. (About 99% of those > 70 MB are allocated during the retrieval of the nested lines.) Can you help > me? > > Thanks in advance, > Detlef > > >
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Terry
6/18/2001 2:59:52 PM
Hi Detlef, i hav PB6.5, can you use "SAVE ROWS TO DISK" for the two datawindows, then the memory shoud not be the problem. Willi On Mon, 18 Jun 2001 16:30:36 +0200, in powersoft.public.powerbuilder.datawindow Detlef Keil <Detlef.Keil@MAPWARE.de> wrote: >I have a report, that contains a datawindow, which itself contains a >datawindow. Everything is working fine until the number of retrieved lines >get's over about 1100 primary and over about 3200 retrieved nested lines. >Although the task manager (I'm using Powerbuilder 7.0.3 on Windows 2000) >shows me, that there is still enough free memory, the data retrieval stops >and Powerbuilder (or the application which called the Retrieve() method) >ends itself without any error message. That allways happens when the >datawindow has allocated about 70 MB of virtual memory. (About 99% of those >70 MB are allocated during the retrieval of the nested lines.) Can you help >me? > >Thanks in advance, >Detlef > > > ---== Posted via the PFCGuide Web Newsreader ==--- http://www.pfcguide.com/_newsgroups/group_list.asp
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Willibald
6/18/2001 6:13:40 PM
Sorry, but this didn't change anything. I explored this problem further by
adding the following Lines to the DataWindow control's RetrieveRow-Event:
int liFile
lifile = FileOpen( 'debug.log', LineMode!, Write!, LockWrite!)
FileWrite( liFile, "Retrieved Row " + String( row ) + ". Memory: " +
String( this.Object.DataWindow.Storage ) )
FileClose( liFile )
The resulting logfile contained the following Lines (I added line numbers
for clearification):
1: Retrieved Row 1. Memory: 53248
2: Retrieved Row 2. Memory: 53248
3: Retrieved Row 3. Memory: 53248
....
3179: Retrieved Row 3179. Memory: 487424
3180: Retrieved Row 3180. Memory: 487424
3181: Retrieved Row 3181. Memory: 487424
3182: Retrieved Row 0. Memory: 462848
3183: Retrieved Row 0. Memory: 462848
3184: Retrieved Row 0. Memory: 462848
....
11948: Retrieved Row 0. Memory: 565248
11949: Retrieved Row 0. Memory: 565248
11950: Retrieved Row 0. Memory: 565248
Thus the logfile tells me, that about 0.5 MB are allocated for the
DataWindow. Nevertheless, the Windows 2000 Taskmanager says, that about 70
MB are allocated during the retrieval. This amount of 70 MB is about the
same when I start the retrieve in Powerbuilder 7.0.3 and when I start it in
my application. I suppose that most of the the 70 MB are used for allocating
DataWindow objects and the 0.5 MB are for the information I retrieved. Is
there a software dependant upper bound for memory allocation in PB?
Thanks a lot,
Detlef
P.S.: In my last post I didn't write that I'm using Adaptive Server Anywhere
7.
"Terry Dykstra" <dontreply_tdykstra@cfol.ab.ca> schrieb im Newsbeitrag
news:nAMjgpA#AHA.85@forums.sybase.com...
> That's not a high number of rows at all. You can try using the new
feature
> in 703 to change memory management:
> dw_1.object.datawindow.storagepagesize='large'
>
> --
> Terry Dykstra (TeamSybase)
> Please state PB / OS / DB versions in your post.
> MySybase http://my.sybase.com/mysybase
> Search Deja: http://www.pfcguide.com/_newsgroups/search.asp
>....
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Detlef
6/19/2001 11:31:54 AM
Hi, as you said most of memory is not used by data. Data window print preview presentation is problem (you can't turn it off, you have nested reports). There is the main memory alocated. So you should start print using PrintOpen(), Print() in smaller steps and then PrintClose(). Needs coding, but it is possible. Bye, Damir
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Damir
6/20/2001 1:21:28 PM
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I have a nested report with 5 datawindows. There second and fourth datawindows are being set by RowsCopy function after retrieving the main datawindow. The others are retrieved. THe problem here is that when printing/displaying the datawindow there are lot of blank pages. Pl. advise THanks ramesh.subramanian@gs.com ---== Posted via the PFCGuide Web Newsreader ==--- http://www.pfcguide.com/_newsgroups/group_list.asp ...
Fatal Error when filtering datawindow with nested datawindow
When filtering a datawindow viewed from a .PSR file which contains a nested datawindow I get the following error: HCVIEWER caused an invalid page fault in module PBDWE050.DLL at 014f:1156a0fd. Filtering works for other reports and I can filter the same .PSR file if I open it in Infomaker. Has anyone had this problem? ...
Datawindow refresh problem in a nested datawindow #3
I have a nested report with 5 datawindows. There second and fourth datawindows are being set by RowsCopy function after retrieving the main datawindow. The others are retrieved. THe problem here is that when printing/displaying the datawindow there are lot of blank pages. Pl. advise THanks ramesh.subramanian@gs.com ---== Posted via the PFCGuide Web Newsreader ==--- http://www.pfcguide.com/_newsgroups/group_list.asp ...
Nested in Nested Datawindow syntax
Hi, I'm having a problem finding the right syntax to set the dataobject of a nested (inside nested) datawindow. I have a composite datawindow (dw_1) with a datawindow (dw_nest1) nested in it. It also has a datawindow nested (dw_nest2). For i = 1 to ll_rowcount /* where ll_rowcount is the rowcount of dw_nest1 */ dw_1.Object.dw_nest1.Object.dw_nest2[i].dataobject = "d_nested" NEXT I'm actually having a problem finding the syntax to do anything with the second nested datawindow. Any help is appreciated Never mind this. I got the dataobject t...
how to get the number of rows of a datawindow nested in another datawindow?
Hi All! Has anyone an idea how to get the number of rows of a datawindow nested in another datawindow? I have a datastore l_ds = CREATE datastore l_ds.dataobject = "d_invoice" l_ds.SetTransObject(SQLCA) li_rows = l_ds.Retrieve(... and so on I am able to access a value in the nested datawindow like this: l_ds.Object.d_items[1].Object.item_description[1] l_ds.Object.d_items[1].Object.item_description[2] l_ds.Object.d_items[1].Object.item_description[3] (d_items is the nested datawindow) But I do not know how to retrieve the number of rows of the nested...
embedding a datawindow within a datawindow
Below is a sample of the format for a report I need to create. The report will display courses that may or may not be part of group, because the people running the courses can choose from all the courses available to create their own "group" of courses. Since a course may or may not be part of a group would using an embedded datawindow for the group info work? How? Can anyone point me in the right direction? The data is coming from two tables. Thanks, Kevin CourseID CourseTitle CourseTopic EnrollMax EnrollCurrent 100145A "Sample" "Sample"...
Web resources about - Nested datawindow within a nested datawindow - sybase.powerbuilder.datawindow PowerBuilder - Wikipedia, the free encyclopedia
PowerBuilder is an integrated development environment owned by Sybase , a division of SAP . It has been in use since 1991, peaking around 1998 ...
PowerBuilder is an integrated development environment owned by Sybase , a division of SAP . It has been in use since 1991, peaking around 1998 ...
Intelligent Versus Surrogate Keys
Should I use business columns as primary key fields for tables in thedatabase, or generate artificial primary key values? When business-related ...
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chevy voltProEXR File Description =Attributes= channels (chlist) compression (compression): Zip dataWindow (box2i): [0, 0, 5119, 2475] displayWindow (box2i): ...
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Enable is localization/ translation tool used by PowerBuilder developers to make their applications multilingual.Enable is a powerful tool that ...
Enable is localization/ translation tool used by PowerBuilder developers to make their applications multilingual.Enable is a powerful tool that ...
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