Data retrieval with C#

Greetings Guys,
I am developing some analytical tools that make calls to
databases. Currently programming them in C#.
I want to make the tools available on a webpage (local
server) so that that the access to the tools instant (hopefully
blink of an eye).
My 3 short questions are:
(1) If i am setting up a website structure in dreamweaver,
what do i need to consider up front so that i can connect all the
C# files later.
(2) Can dreamweaver do the same by itself without me coding
in C#? i.e. Connecting to the databases (MS access right now, sql
server later) and retrieving arrays of data?
(3) Do you know that dreamweaver maintains the integrity of
data without corrupting it?
Your help is appreciated in advance.
Khattab

1) I wouldn't recommend DW for developing C# apps.
2) DW allow you to create connections to the DB.
2) DW does not have anything to do with maintaining or
managing data. DW is just an interface to create web pages, it is
not like a DBMS or anything like that.
DW does not support the .NET framework very well at all, it
is nearly non-existent. I would recommend using Visual Studio for
.NET development.

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No Data retrieved with AJAX Call HTMLDB_GET when using Safari Browser

In my apex (4.0) app i have certain page a which uses JS AJAX htmldb_get to pull some data from an on-demand process using xml structure
var get = new htmldb_Get(null, $v('pFlowId'),
'APPLICATION_PROCESS=get_markerdata', $v('pFlowStepId'));
if (!MEBMarkerdataXML) {// Tabelle mit Kunden leer? Dann aus DB abfragen
MEBMarkerdataXML = get.get('XML');
l_Count = MEBMarkerdataXML.getElementsByTagName("Kunde").length;
I ran into a strange behavior when using Safari Browser (Mac and Windows) when opening the page.
As long as the process retrieves less than 50 rows everything works fine. The data is pulled from the OnDemand Process and delivered to the browser; the XML Data can be selected in JS for further processing
<<<<<<<<<<<<<< HTTP Traffic taken from Safari <<<<<<<<<<<<<<<
Anfrage-URL:http://80.149.218.10:8080/apex/wwv_flow.show
Anfragemethode:POST
Status-Code:200 OK
Anfrage
Content-Type:application/x-www-form-urlencoded
Origin:http://80.149.218.10:8080
Referer:http://80.149.218.10:8080/apex/f?p=41107101:43:1599514482232751::
User-Agent:Mozilla/5.0 (Windows NT 5.1) AppleWebKit/534.55.3 (KHTML, like Gecko) Version/5.1.5 Safari/534.55.3
Formulardaten
p_request:APPLICATION_PROCESS=get_markerdata
p_instance:1599514482232751
p_flow_id:41107101
p_flow_step_id:43
Antwort
Cache-Control:no-cache
Content-Type:text/xml;charset=UTF-8
Date:Thu, 03 May 2012 10:19:35 GMT
Pragma:no-cache
Server:Apache-Coyote/1.1
Transfer-Encoding:Identity
X-DB-Content-length:53329
X-ORACLE-IGNORE:IGNORE, IGNORE, IGNORE, IGNORE
<<<<<<<<<<<<<<<<
When calling for more then 50 rows Safaris shows a POST Error -1001 and no Data is delivered.
This occurs only on some Mac's and my Dev WIN-XP PC using SF Browser; never on iPad/iPhone . Never when using FF on Mac or PC.
I googled a lot of different Sources, it seems to be a Timeout Problem when making a long runing AJAX Call. But i did not find any useful hint.
Any Ideas from the APEX & HTTP Gurus?
Regards
Peter

It's just that in my experience htmldb_Get.get() is troublesome for browsers, due to the fact it performs a synchronous request. The browser can do nothing else while it waits for the response. I've seen Firefox really struggle with it in the past couple years. Also, I've seen no good reason to use synchronous XMLHttpRequest calls. As you can see, it's simple to refactor a call to htmldb_Get.get() into a call to htmldb_Get.GetAsync().
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I don't think htmldb_Get is officially documented anywhere, but you can find the source here... http://apex.oracle.com/i/javascript/uncompressed/apex_4_0.js
There is also a pure jQuery way to perform AJAX request, I recommend using this because at least it's documented. Here's a snippet of a typical APEX AJAX request done the jQuery way:
apex.jQuery.ajax({
dataType: "xml", //supports text, xml, json, jsonp, script, or html
type: "post",
url: "wwv_flow.show",
traditional: true,
data: {
    p_request: "APPLICATION_PROCESS=get_markerdata",
    p_flow_id: $("#pFlowId").val(),
    p_flow_step_id: $("#pFlowStepId").val(),
    p_instance: $("#pInstance").val()
success: function (data, textStatus, jqXHR) {
    // Do your thing in here
error: function (xhr, ajaxOptions, thrownError) {
    // Handle error in here
});Then you can refer to great documentation here... http://api.jquery.com/jQuery.ajax/

EPM add-in problem with input data,retrieve dimension or members

Hello everyone,
I am trying to use data write back (input data) function with EPM add-in in Dashboards. I managed successfully bringing results of an EPM report. I've created a local connection at EPM, and created a connection at data manager for"Planning and consolidation, version for SAP netweaver platform". And i could get the values via refreshing connection at preview mode, so far so good. Now i want to add a connection which will serve as data write back function to a specific BPC cube. The problem is, I can retrieve data source name and environment name. But when i click to retrieve model names, it retrieves empty results. The problem exist in, "retrieve dimension" and"retrieve dimension members" functionalities too. I realized that i could retrieve model names for only one specific environment, but even i could get these, when i try to retrieve "cell definition" i am facing an error. You can see related screenshots below.
I am using Dashboards 4.1 SP2, EPM connector 10 SP 17. I created two connections as local and business planning and consolidation for netweaver. I selected same environment and model name for these connections. Neither did work. Any ideas?
Update: The reason i could see some model names and some others not was i didn't specified the model as data source at:
Enable BPC Model as reporting data source
Logon to BPC 10.0 NW web client -> Planning and Consolidation Administration -> Dimensions and Models -> Models -> Select the Model -> Edit -> Features Used with the Model -> mark check box 'Use as Source of Data' -> Save.
I will update here if i could find a solution for the other issue. (First screenshot).
Update_2: The problem was occuring because i wasn't connecting to transient cube, created automatically by applying the step at Update_1. While creating a local connection, you shouldn't connect to the original cube, but to the transient one instead to use input data functionality.
Regards,
Onur
Message was edited by: Onur Göktaş

HI,
I believe it is definitely the support pack. I posted an issue on this forum and I saw your post. Your issue is very similar to mine. I saw Andy's reply to you about the SP 18 and looked into it. Thanks Andy. SP 18 resolved my issue. See my post. Kathy

Data retrieval for Sony handycam with 60G harddrive.

Does BestBuy do data retrieval? I have a handycam with work video on it that accidentaly got formated. I know with a standard harddrive you can still retrieve it if there has not been recording since the formatting but I am not sure about camera harddrives. If BestBuy does not do it, does anyone know where it can be done and approximate cost. I live in the New Orleans area.
I may try the same question in computers if nobody knows. Thanks in advance for any guidance at all.

Best Buy sends out for data retrieval. You can have it sent out through geek squad to get the estimate of cost.
Crystal
Superuser
Forum Guidelines | Terms & Conditions | Community Guidelines | What is a Superuser?
*Remember to mark your questions solved and click the star to give kudos to show your thanks!*
While I used to be a Best Buy Employee, I no longer have any affiliation with Best Buy.
My opinions do not in any way shape or form represent Best Buy's Official decisions.

My macbook pro is still under warranty. I have just put it into Mac 1 to be repaired because I had the folder with the dreaded Question mark on it....new hard drive. I was told that if I wanted my data retrieved, I would have to pay $445 p/h. Ahh!!!

My macbook pro is still under warranty. I have just put it into Mac 1 to be repaired because I had the folder with the dreaded Question mark on it....new hard drive. I was told that if I wanted my data retrieved, I would have to pay $445 p/h. Ahh!!! Shouldn't that be covered by warranty?

My newest Mac just did the same "folder of death" dance. It's too late for you now, but you might consider a passport backup drive.You can get 2&3 T-bytes now fairly reasonably priced. A given with computers is they will crash, just a question of how bad and when, so you can be prepared for the next time.

Query Error Information: Result set is too large; data retrieval ......

Hi Experts,
I got one problem with my query information. when Im executing my report and drill my info in my navigation panel, Instead of a table with values the message "Result set is too large; data retrieval restricted by configuration" appears. I already applied "Note 1127156 - Safety belt: Result set is too large". I imported Support Package 13 for SAP NetWeaver 7. 0 BI Java (BIIBC13_0.SCA / BIBASES13_0.SCA / BIWEBAPP13_0.SCA) and executed the program SAP_RSADMIN_MAINTAIN (in transaction SE38), with the object and the value like Note 1127156 says... but the problem still appears....
what Should I be missing ?????? How can I fix this issue ????
Thank you very much for helping me out..... (Any help would be rewarded)
David Corté

You may ask your basis guy to increase ESM buffer (rsdb/esm/buffersize_kb). Did you check the systems memory?
Did you try to check the error dump using ST22 - Runtime error analysis?
Edited by: ashok saha on Feb 27, 2008 10:27 PM

Real tough data retrieval - assistance needed

Late 2011 Macbook Pro with 500GB hard drive
Lion 10.7
One morning out of absolutely nowhere I get this grey screen with a flashing question mark folder. I take it to the geniuses at the Apple store and they tell me my hard drive has failed (no explanation). My mac is under warranty so they gave me a new hard drive for free, bagged my old hard drive and told me "good luck" retrieving the data.
I'm on a mission to retrieve the data without paying for services. I have never retrieved data before but I've been doing a lot of forum reading and I have been getting protips from an IT friend who has saved my PC data before.
As of now, I have been unable to even access the hard drive and so I am reaching out to the community to help me conquer this project.
the problem is not the OS (according to Apple store)
when hooking up with the dongle, neither Finder nor Disk Utility detect the bad drive
the drive will spin when forced by the dongle (so I've ruled out the freezer method)
I was advised (by friends and forums alike) to download so powerful data retrieval software:
Data Rescue [did not detect bad external drive]
Disk Drill [did not detect bad external drive]
TestDisk (http://www.cgsecurity.org/wiki/TestDisk) [I can get it up and running but I have no idea how to use this software]
So that seems to be the big problem, when I hook up my failed drive as an external hard drive, there is no acknowledgement from my MBP that it is connected and as such data recovery programs cannot access it. When I still had it installed in my computer, there was no clicking sound and it doesn't seem like any of the components are jammed up as it still spins.
Where do I go from here? Please keep in mind that I am new to resolving my own technical problems but I'm willing to learn. Tired of being one of those people who look at computer parts and get anxious.
NOTE: I haven't tried Target Mode as I do not have a firewire cable or access to another mac (yet). If you think I should try this, please let me know.

A hard drive that will not divulge BOTH its Make&Model and a reasonable size/capacity to the likes of Disk Utility and data rescue programs has died, and connot be repaired with any software.
Target Disk mode will not improve anything. The drive is read as a Mac Volume by software. If it won't mount under Mac OS X, it won't mount under Target Disk Mode.

To date calculations with roling calendar

Hello,I am relatively new to Essbase and we are in the middle of building an inventory analysis database. We have 5 dimensions:Accounts,Time,Version,Customer,ProductThe time dimension spans from Year-Season-Quarter-Month-Week. Includes annual totals for 4 years. I have a rolling calendar and I do not use a scenario member to designate the year. I also have an alternate roll-up representing a fiscal year.My time dim looks somthing like this:TIME..Y2001...Fall....Quarter1.....Jan01......WK 2003-10-13..Y2002...etc, etcI am trying to come up with a YTD, STD, and MTD number for base sales_unit data. I should be able to get that number no matter what period selected in a report. For example if I am looking at Week 10-13-2003, I need to see what my MTD, QTD, and YTD numbers are for that date-member, same goes for upper level members in time. I can't use DTS because it only (seems to) work for the generation it's assigned too. Furthermore with DTS, I need the date results for my average inventory calc too.So the only way I could get this to works was with a VERY long series of if statements for each time member.Here are a few examples: For Month: IF (@ISMBR(Month01-2001)) @SUMRANGE(Sales,WK2001-02-10:WK2001-03-03); ENDIFFor Quarter: IF (@ISMBR(Quarter1-2001)) @SUMRANGE(Sales,WK2001-02-10:WK2001-05-05); ENDIFFor Season: IF (@ISMBR(Fall-2001)) @SUMRANGE(Sales,WK2001-02-10:WK2001-08-04); ENDIFThis works but data retrieval times are too slow (16 minutes) for dynamic calcs and the calc script runs for more than 6 hours.It's obvious to me that this will give me the correct results but it will not work because of performance. Any suggestion on how to deal with a to date number with reasonable calc times using a rolling calendar would be graetly appreciated!Russell Krauss, VF Inc

I've run into similar problems and one thing I have given into is that there is no one solution. What I have been using is multiple alternate roll-ups using shared members. My Time dimension will have three or four sub-roll-ups (i.e. "By Month", "By Week", etc.) I do this by sharing the base level members (daily data). I'm not sure if it would be possible to do what you are looking to do in one roll-up because weeks will inevitably over lap months. I will check back however to see if anyone else has suggestions. One more thing to consider, if your time dimension is sparse (which is probably not a good idea in this case) but if it is, you could use attribute dimension to group some of your dates, particularly the seasons. Good luck!

How to transfer data retrieved from a bean, into requestScope

I have a jsf page called viewCustomer.jsp, which is backed by a controller/mbean with a name viewCustomerController.
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each addressbean has an ID field which is the primary key to the addresses. If i want to delete the address, i need to send this primary key via a requestAttribute to a controller which will delete it.
hence to delete the address i have a form such as:-
<h:form>
<h:inputHidden value="#{viewCustomerController.customerAddressBean.id}" />
<h:commandButton value="Delete Address" action="#{viewCustomerController.deleteCustomerAddress}" />
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The problem with this, is that because the addressbean is only added before the render phase, on presssing the delete address button, i get a null exception, because customerAddressBean doesnt exist yet.
What i want to do, is that upon pressing the delete address button, the id value should be immediately sent to a requestAttribute called 'addressId', and not back to the backing bean.
i. e. (if jsf had an assignment operator) it would be something like
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<h:inputHidden value="requestScope.addressID = #{viewCustomerController.customerAddressBean.id}" />
<h:commandButton value="Delete Address" action="#{viewCustomerController.deleteCustomerAddress}" />
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basically, the data should be read from the backing bean, but it shouldnt be written back to the backing bean.
now i realize that if i allow my database to repopulate the backing bean earlier, the customerAddressBean will be populated, and then the first listing would work. But that would require a second set of trips to the database with no meaning but to repopulate the backing bean which seems like quite a waste.
In the case of the address, i could populate the propertly with a dummy addressbean, but this would not work in the case of properties which are lists of beans.
So in summation. How do i transfer data that has been read from a property of a backing bean, into a request attribute on a commandbutton click, without putting the data back into the property of the backing bean.

Hello Anu,
There are different hardware options that you have here. The basic things that you need to keep in mind is that the PDA that you purchase runs on Pocket PC and has either a CompactFlash or a PCMCIA slot in it. The driver that you would be using for your LabVIEW PDA application would NI-DAQmx Base Ver 2.0.1. You can refer to its readme for more information on the supported hardware. Also you can check at this page for more information on the supported devices. About your original question, using LabVIEW PDA you can create a text file for storing data and separate the data points with a comma. So that this way you would be able to open the file in Excel if you wanted to. All the file I/O related VIs can be found in the function palette at Programming >> File I/O.
Regards,
Chetan K.
Application Engineer
National Instruments

Report Developed in Webi Rich Client Consuming more time in Data Retrieval

Dear All,
I am a BO Consultant, recently in my project I have developed one report in Webi Rich Client., at the time of development and subsequent days the report was working fine (taking Data Retrieval time less than 1 minute), but after some days its taking much time (increasing day by day and now its taking more than 11 minutes).
Can anybody point out what could be the reason?????
We are using,
1. SAP BI 7.0
2. SAP BO XI 3.1 Edge
3. Webi Rich Client Version :12.3.0 and Build 601
This report is made on a Multiprovider (Sales).
What are the important points that should be considered so that we can improve the performance of Webi Reports????
Waiting for a suitable solution.....................
Regards,
Arun Krishnan.G
SAP BO Consultant
Edited by: ArunKG on Oct 11, 2011 3:50 PM

Hi,
Please come back here with a copy/paste of the 2 MDX statements from the MDA.log to compare the good/bad runtimes.
& the 2 equivalent DPCOMMANDS clauses (good and bad) from the WebI trace logs.
Can u explain what u really mean in the bold text above..................Actually I didn't get you..........
Pardon, I have only 3 months experience in BO.
Regards,
Arun
Edited by: ArunKG on Oct 11, 2011 4:28 PM

Data Retrieval Speed in Oracle Spatial vs. ESRI ArcSDE

I would appreciate any opinions regarding data retrieval
performance between Oracle Spatial and ESRI ArcSDE. Would an end-
user (using ESRI software) experience significant differences in
data retrieval speed depending on how the data were stored in
Oracle (MDSYS.SDO_GEOMETRY verses ESRI Binary/Blob formats).
Knowing that the ESRI binary formats are tailored to their
software front-end apps (ArcGIS, ArcMap, ArcCatalog, and
ArcInfo), wouldn't this be a "non-issue" until the spatial
dataset gets "large", and even then, wouldn't performance be
(almost) equal if the spatial indexes were created properly?
Thanks for your inputs,
Bruce

John,
You can't do that type of query in sql from sql*plus using
SDEBINARY. HOwever, you can perform spatial queries in ArcMap
if you are using SDEBINARY.
You can use the query builder to perform point-in-polygon type
queries.
Hope that helps.
For my two cents, I think SDO_GEOMETRY gives you a more robust
database to work with, because you have the added power of
Oracle Spatial functions. If you are using SDEBINARY you are
limited to only what you can do thru ArcGIS.
If you are concerned more about performance than accessibility,
especially with a large number of users, then SDEBINARY might
be the better choice.
I love Oracle Spatial and am hoping that the performance issue
will not be a serious one when we start putting ArcIMS developed
apps into production.
Dave

Data retrieval displayed on multiple pages - Servlets

I am using mysql database, JDBC and Servlets.
Could anyone tell me the best way to display the data retrieved from the database in multiple pages. For example I have 215 records and I want the data displayed in several pages with 10 rows per page.
I want something similar to these forum pages where I can move forward, back, first and last through the database.
Thanks in advance

Hans Bergsten's JSP book from O'Reilly has an example that manages that trick with JSTL. You should buy a copy and download the JSTL implementation from Jakarta and try it out. - MOD

Data retrieval after EM closed, bug?

Hello.
I think TopLink is retrieving data after EM has been closed in the case
below, and I'm not sure if this behavior is correct.
CASE: (Steps 1 to 4 and follows)
STEP 1.- I'm using a recursive table (most probably the same applies for
non-recursive tables):
create table "SA"."RECURSIVA" (
PK int primary key not null,
DATO varchar(10),
PADRE int references RECURSIVA
INSERT INTO "SA"."RECURSIVA" (PK,DATO,PADRE) VALUES (0,'Raiz',null);
INSERT INTO "SA"."RECURSIVA" (PK,DATO,PADRE) VALUES (1,'n1',0);
INSERT INTO "SA"."RECURSIVA" (PK,DATO,PADRE) VALUES (2,'n2',1);
INSERT INTO "SA"."RECURSIVA" (PK,DATO,PADRE) VALUES (3,'n3',2);
INSERT INTO "SA"."RECURSIVA" (PK,DATO,PADRE) VALUES (4,'n4',3);
INSERT INTO "SA"."RECURSIVA" (PK,DATO,PADRE) VALUES (5,'n5',4);
INSERT INTO "SA"."RECURSIVA" (PK,DATO,PADRE) VALUES (6,'n6',5);
INSERT INTO "SA"."RECURSIVA" (PK,DATO,PADRE) VALUES (7,'n7',6);
STEP 2.- This is the entity (please note+ the LAZY fetch type):
@Entity
@Table(name = "RECURSIVA")
public class Recursiva implements Serializable {
@Id
@Column(name = "PK", nullable = false)
private Integer pk;
@Column(name = "DATO")
private String dato;
@OneToMany(mappedBy = "padre")
private Collection<Recursiva> recursivaCollection;
@JoinColumn(name = "PADRE", referencedColumnName = "PK")
@ManyToOne(fetch=FetchType.LAZY)
private Recursiva padre;
STEP 3.- This is the data retrieval code (please note+ EntityManager is closed
before accesing data):
EntityManagerFactory emf =
Persistence.createEntityManagerFactory("mijpa");;
EntityManager em = emf.createEntityManager();
Recursiva rc = null;
rc = em.find(Recursiva.class, 7);
em.close();
while (rc != null) {
System.out.println(rc.getDato());
rc = rc.getPadre();
emf.close();
STEP 4.- Results:
n7
n6
n5
n4
n3
n2
n1
Raiz
QUESTIONS: If em is closed right after the leaf entity is retrieved:
A. How is it possible that all of the leaf ancestors up to the root are
retrieved?
B. Is toplink accessing the database after em is closed or simply the
full hierarchy is eagerly loaded at the very beginning?
C. Is this correct, or is it a bug?
NOTE: openjpa prints n7 and n6, as I would have expected.
I would appreciate your comments, specially if you think this is a bug,
in order to report it.
Thanks.
Antonio.
Tested with:
* [Oracle TopLink Essentials - 2.0.1 (Build b09d-fcs (12/06/2007))]
* [derby 10.4.1.3]
* [java hotspot 1.6.0_06-b02]
* [ubuntu 8.04.1 2.6.24-19-generic]

Issued as
https://glassfish.dev.java.net/issues/show_bug.cgi?id=5782

Data retrieval buffers - buffer size and sort buffer size

Any difference to tune BSO and ASO on data retrieval buffers?
From Oracle documentation, the buffer size setting is per database per Essbase user i.e. more physical memory will be used if there are lots of concurrent data access from users.
However even for 100 concurrent users, default buffer size of 10KB (BSO) or 20KB (ASO) seems very small compare to other cache setting (total buffer cache is 100*20 = 2MB). Should we increase the value to 1000KB to improve the data retrieval performance by users? The improvement impact is the same for online application e.g. Hyperion Planning and reporting application e.g. Financial Reporting?
Assume 3 Essbase plan types with 100 concurrent access:
PLAN1 - 1000KB * 100 = 100MB 1000KB * 100 = 100MB (total sort buffer size)
PLAN2 - 1000KB * 100 = 100MB 1000KB * 100 = 100MB (total sort buffer size)
PLAN3 - 1000KB * 100 = 100MB 1000KB * 100 = 100MB (total sort buffer size)
Total physical memory required is 600MB.
Thanks in advance!

256 samples Buffer size will always give you a noticable amount of latency. If you use Software Monitoring you should try setting your Buffer to 64 samples. With the recording delay slider in the preferences->Audio you can compensate for the latency (of course not in realtime) so that the Audio will be placed exactly there, where it should hae been recorded at. In your case set it to a -value. A loopback test (check the link below) will clarify the exact amount of Latency occuring on your system.
http://discussions.apple.com/thread.jspa?threadID=1883662&tstart=0

Data Retrieval speed from DIAdem Database using Data Finder Toolkit in LabVIEW

I have developed a LabVIEW code using NI Data Finder toolkit for extracting the data from the DIAdem. I have formed queries for extraction the data. But the data retrieval takes more time for extracting the data.
I have attached my LabVIEW code image along with this post. In that i have circled the VI "Results to Waveform", which is Data Finder toolkit VI which takes more time for extraction. From my Testing, query formation is taking only few millisecond to execute, but "Results to Waveform.vi" takes around 35 seconds. Also i want to execute similar kind of search for 5 times. Altogether it will taken around 1.5 mins to 2 mins for execution.
Is there any other alternative way of doing this search? Kindly help me in sorting this out.
Thanks,
Alagar
Solved!
Go to Solution.
Attachments:
Report Gen.JPG ‏91 KB

Hi Alagar,
You say that the "Results to Waveform.vi" takes "more" time, but what are you comparing this to? More than what? More than loading the contents of the same file with the TDMS VIs or with the Storage VIs? What file format are you loading data from after querying-- TDMS files, ASCII files, binary files?
What information do you want to retrieve? Do you really need ALL the values of ALL the channels in each data file? Are you interested only in the channel values, or all you interested in scalar properties stored along with the data? If you want only some of the channels loaded or if you want only scalar properties loaded, there are indeed faster ways of doing this.
Brad Turpin
DIAdem Product Support Engineer
National Instruments

Data retrieval with C#

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