Looping over matrix items

hey All.
I was wondering if any experts out there can share their expeirences with looping over all of the matrix line items on a sales order form. I have to do this for a client and I would like to know what the best methods are when it comes to speed and performance. Does anyone have any sample code they can share for doing this? I need to update things like price/quantity on each line item when the user presses a button. I know there are different ways to loop over and access these items so I am hoping someone has figured out the best way
Thanks for the help,
Curtis

Hi Curtis...
The primary two ways of looping data in a matrix... Using the DdDatasouce and Using the oMatrix.Columns.Item("uid").Cells.(row).Specific ...
The first thing one need to know when choosing is:
- Is it a system matrix or you own matrix
- Does you need to read data only or do you need to write data also
- Do you need data from one row/few rows or all rows
The primary reason for these questions is that in system matrixes you are limited to only read from datasources (write is not possible)
This is in my experience the best way to do the following
Read all data from a system matrix:
- Make a Omatrix.FlushToDatasource an read all data from the datasource (Performance = Fast)
Read a specific line on a system matrix:
- Use oMatrix.GetLineData(row) and use the datasource to get data (from the datasource offset)
Write data to a system matrix:
- Since you can't do this using the datasouce only (slow/very slow) solution is to use oMatrix.Columns.Item("uid").Cells.(row).Specific.. There are additional limits to this, because in order to write data the columns must be both editable and visible. (Performance = Slow/very slow (1+ min to update perhaps 100 lines, but 1-10 lines is somewhat ok))
Read/Write data to own matrix
- Always use the datasource...

Similar Messages

Looping through inbox items on timer event is really slow...?

Hi,
I have an issue with a email sync event that I am running. Essentially, I am given a date (the received date of the last email synced) via another process and then need to return all the emails in the user's inbox the where receivedDate > this given
date.
I have a timer object than triggers my sync event every 15 mins. I also have a button that allows the user to manually activate the sync - this basically changes the timer to 3 secs and so it fires the sync event.
If the sync event is fired manually as per above, it loops through everything quite quickly (~12,000 emails in 30 secs) and I can stored the sender/recipient and received time data I require from these in a list of objects, which I sync later on in a background
process. During this loop the main UI freezes up, which is fine since I show a progress bar so the user knows how long they need to wait, and a large sync like this should only occur on their first sync theoretically. If the first sync event is
fired without the manual input - so still called from the same timer event, but just on the normal 15 min event, not the shortened 3 sec one - then it runs differently. The sync takes a lot lot longer, and the UI doesn't freeze up.
I presume this might be because it is fired slightly differently and does not hog up the main thread, but rather shares it with normal Outlook operations. Maybe the operations are being run on a background thread and then keep having to jump into the
main thread to access the email items...? Either way, I'm not quite sure how this is happening since the only difference is the user pressing a button that changes the timer.interval. The code that is run is the same, and the button press doesn't
trigger the actual sync itself.
Is there a way I can force this first sync to always run solely in the main thread, it can freeze up Outlook and show the progress bar until it is done? Ideally any subsequent syncs would then be run with no progress bar and no freezing up of the UI.
Many thanks,
Tom

Hello Tom,
> Maybe the operations are being run on a background thread and then keep having to jump into the main thread to access the email items...?
You shouldn't use another threads when dealing with the Outlook object model. Office applications use the single threaded apartment (STA) model and don't support multithreading. All calls made from another threads are marshalled by Outlook to the main
thread. However, you can use a low-level code (Extended MAPI) to access the data from secondary threads. For example, you can use Redemption which is based on Extended MAPI.
> it loops through everything quite quickly (~12,000 emails in 30 secs)
Instead of looping over all items in the folder I'd recommend using the
Find/FindNext
or
Restrict methods of the Items class. You can read more about them in the following articles:
How To: Use Find and FindNext methods to retrieve Outlook mail items from a folder (C#, VB.NET)
How To: Use Restrict method to retrieve Outlook mail items from a folder
You can use the System.Windows.Forms.Timer class which uses the main thread for invoking the Tick event. The .NET
Framework Class Library provides three different timer classes: System.Windows.Forms.Timer, System.Timers.Timer, and System.Threading.Timer. Each of these classes has been designed and optimized for use in different situations. The Comparing
the Timer Classes in the .NET Framework Class Library article examines the three timer classes and helps you gain an understanding of how and when each class should be used.
Also you may find the
AdvancedSearch method of the Application class helpful. Pay special attention to the fact that the search is performed in another thread. You don’t need to run another thread manually since the
AdvancedSearch method runs it automatically in the background. See
Advanced search in Outlook programmatically: C#, VB.NET for more information.

How can i loop over treeview selected nodes and then to delete each node if it's a directory or a file ?

I have this code:
if (s == "file")
file = false;
for (int i = 0; i < treeViewMS1.SelectedNodes.Count; i++)
DeleteFile(treeViewMS1.SelectedNode.FullPath, file);
I know it's a file and it is working if it's a single file.
On the treeView i click on a file right click in the menu i select delete and it's doing the line:
DeleteFile(treeViewMS1.SelectedNode.FullPath, file);
And it's working no problems.
But i want to do that if i selected some files togeather multiple selection then to delete each file.
So i added the FOR loop but then how do i delete from the SelectedNodes each node ?
The treeView SelectedNodes dosen't have FullPath like SelectedNode also doing SelectedNodes[i] dosen't have the FullPath property.
Same as for if i want to delete a single directory or multiple selected directories:
This is the continue of the code if it"s not a "file" (else) it's null i know it's a directory and doing:
else
file = true;
RemoveDirectoriesRecursive(treeViewMS1.SelectedNode, treeViewMS1.SelectedNode.FullPath);
Also here i'm using SelectedNode but if i marked multiple directories then i how do i loop over the SelectedNodes and send each SelectedNode to the RemoveDirectoriesRecrusive method ?
My problem is how to loop over SelectedNode(multiple selection of files/directories) and send each selected file/directory to it's method like i'm doing now ?

foreach (TreeNode n in treeViewMS1.SelectedNodes)
// Remove everything associated with TreeNode n here
I don't think it's any harder than that, is it?
If you can multi-select both an item and one of its descendents in the tree, then you'll have the situation that you may have deleted the parent folder and all of its children by the time you get around to deleting the descendent. But that's not such
a big deal. A file can get deleted externally to your program too - so you'll just have to deal with it having been deleted already (or externally) when you get around to deleting it yourself.

Loop Over Nested Structure

Hello,
Can someone please demonstrate how I would use a cfLoop to
loop over and output the contents of this fictious nested
structure?
Thank You!

mletson wrote:
> I figured it out. If anyone has a better solution,
please let me know.
>
> <cfloop from="1" to="#structCount(student)#"
index="x">
>
> <cfset variables.studentID = "student00" & x>
>
> <tr>
>
<td><cfoutput>#student[studentID]["firstName"]#</cfoutput></td>
>
<td><cfoutput>#student[studentID]["lastName"]#</cfoutput></td>
>
<td><cfoutput>#student[studentID]["phone"]#</cfoutput></td>
> </tr>
>
> </cfloop>
>
A slightly simpler version using the structure form of the
<cfloop...>
tag. It also demonstrates both array notation, that you used,
as well
as dot notation. Finally it puts a single <cfoutput...>
block around
the entire loop. This can provide a small but accumulative
performance
improvement.
<cfoutput>
<cfloop collection="#student#" item="aStudent">
<tr>
<td>#aStudent["firstName"]# OR
#aStudent.firstName#</td>
<td>#aStudent["lastName"]# OR
#aStudent.lastName#</td>
<td>#aStudent["phone"]# OR #aStudent.phone#</td>
</tr>
</cfloop>
</cfoutput>

How use c:forEach to loop over a String[][]

Hello,
Is there anyone that can tell me how to use the c:forEach tag to loop over a double String[][]? I can find examples for resultsets etc....but whatever I try with my String[][], I never can get the results on the screen.
Thanx,
debeumers

You need to set up a double c:forEach loop.
ie
<%
// initialisation of string[][]
String[][] sValues = new String[5][5];
for (int i=0; i<sValues.length; i++){
for (int j=0; j<sValues.length; j++){
sValues[i][j] = "" + (i + j);
pageContext.setAttribute("arrayValues", sValues);
%>
// And now to test print out the values
<c:forEach var="row" items="${arrayValues}">
<c:forEach var="col" items="${row}">
<c:out value="${col}"/>
</c:forEach>
<br>
</c:forEach>
Hope this helps
Cheers, evnafets

Hacker problems so I reloaded Snow Leopard. Afterwards, Mac had to delete 798 items. Now looping on 4 items to delete for the past 2 weeks. Can't reboot, reload, or restart. I have to let the battery run down for it to turn off. How to fix this, please?

I had hacker problems so I reloaded Snow Leopard. Afterwards, Mac had to delete 798 items. Now it is looping on 4 items to delete for the past 2 weeks. I can't reboot, reload, or restart. I have to let the battery run down for it to turn off. I think a big part of the problem is that someon one the internet (the hacker) was mirroring my hard drive. It seems to have locked up my system. I could be wrong about this guess, though. All I do know is that it is now looping on the last 4 iems, and I can't do anything.
Well, I can get it to turn on, but all it does is continously try to delete the last 4 items. When I try to reload Snow Leopard, it tells me my hard drive is full and that I need to delete items.
Can anyone help? I am so lost without my Mac. I am back on the PC, and though it works, I'm sure many of you will understand when I say it's just not a Mac.
Thanks.

I installed Snow Leopard using my Apple external Superdrive. I followed directions I found on the Apple site. Here is the article info: Mac OS X v10.6 Snow Leopard: How to Erase and Install
                 Article HT3910
                 located at: http://support.apple.com/kb/HT3910
Everything was going smoothly until I got to the reinstall part. I had to choose to reinstall on a hard drive or network drive. I've never used a network drive; just the hard drive. It seems that's where the troubles began. I selected the hard drive. It seemed to go well, and then I got the message that I needed to delete some files because I was out of space. I chose to get rid of my music files, but, there were only 636. I don't know what the rest of the files were. I was using the Secure Empty Trash command.
That was my first time doing an erase and install. I tried to do it again, but I now get a continuous error telling me that my hard drive is full and I must delete files. Only I can't delete files because 4 files are still being deleted and my computer won't let me stop the process.
I found out about the hackers mostly by the fact that whenever I used to watch something like Hulu or Netflix, I never had problems with internet connection or speed. Lately, I had internet connection problems. I went in to check my settings for my internet provider and found out the settings had been changed to public and all these extra computers were connected to my network.

Over due items are not considered in credit check for customer

Hi Gurus;
We have static credit active for the sales order which is blocking if the sales value is more than the customer credit balance but it is not checking for over due item i.e the billing document whose accounting document hasn't been cleared yet .Though i have maintained same number days for payment terms and risk category for the customer .
Kindly guide me if have missed out any configuration or setting .
Thanks in advance .

Hi Nuru,
Hope you are using automatic credit check and not simple crdit check ..Check that.
Is ur update group a standard one..?
Please paste screenshots of FD33, credit status, OVA8 etc.
Regards
Jobi

[Solved] Foreach loop that loops over all files in a folder does not consider first file found

Hello,
I have a foreach loop in SSIS (as part of Visual Studio 10 and with SQL Server 2012).
It loops over all files in a folder (ForEach File Enumerator).
I set the folder: OK
Traverse Sub folders: OK
I have set up a Variable in Variable Mappings called FileName so it shows User::FileName: OK
Index of variable is 0: OK
It almost works ok. Except that the first file it finds is never considered.
I set a breakpoint then and the first file it finds, is shown in black in the watch variable window. All subsequent files found are shown in red font. When I change the names of the files so another file is the first file found then it skips the other one
which now is the first file.
What is going on here? Why does SSIS skip the first file it finds in a foreach file loop?
Any suggestions highly appreciated.
Thank you
Andi
Andreas

"red font - interesting, any example to show us (image)
It would be interesting to share with us whether you use any file masks or expressions.
Arthur
MyBlog
Twitter
It appears a variable value turns red when it changes between breakpoints. It started black for the first value (the first file, obtained BEFORE the execution reached the breakpoint), and then turned red. I was able to reproduce this behavior on a test environment.
However, it did not skip any files.
OP, please set up the test shown in the image below. Create a breakpoint in the sequence container for the "OnPreExecute" event.

Problem with Message-Mapping: Loop over Elements possible?

Hi all,
I want do create a Message-Mapping for an IDoc-to-File Scenario. In the Source Structure there are some Elements which can appear more than once (1..unbounded). I need a mechanism which loops over these elements and search for specified values. From the Element which contains an element with this specified value the mapping should write a value in the target structure.
Here a simple example (source structure) for better understanding:
<root>
   <invoice>
      <number> 10 </number>
      <sum> 200.00 </sum>
   </invoice>
   <invoice>
      <number> 20 </number>
      <sum> 150.00 </sum>
   </invoice>
   <invoice>
      <number> 30 </number>
      <sum> 120.00 </sum>
   </invoice>
</root>
Now the duty of the Mapping should be to search in the elements <invoice> for the number 30. And then the sum of the invoice with the number 30 should be written in a field of the target structure.
I tried it out with a constant togehter with an equalsS-function and an ifWithoutElse-function, but it is working only then, if the invoice with the number 30 has the first position in the root context.
Can anybody help me? Thanks
With kind regards
Christopher

Hi,
Write a UDF to sum the required values and map to target node.
See while writing the UDF select the type as queue.
number -- removecontext-UDF targetnode
sum----removecontext--/
number abd sum or the two inputs
in UDF
int nsum = 0;
for(int i;i < number.length;i++){
if number(i).equals("30") then
     nsum = nsum + valueOf(sum(i));
result.addValue(nsum); // convert the nsum into string
Regsrds
Chilla

Message-Mapping: nested Loops over Elements

Hi Experts,
I have problems with my Message-Mapping in the IR. I have a source and a target structure. In the following I will give you easy examples of these structures:
<u>source structure:</u>
   <E1EDP01>
      <E1EDP19>
         <QUALF> ... </QUALF>
         <IDTNR> ... </IDTNR>
      </E1EDP19>
      <E1EDP19>
         <QUALF> ... </QUALF>
         <IDTNR> ... </IDTNR>
      </E1EDP19>
   </E1EDP01>
   <E1EDP01>
      <E1EDP19>
         <QUALF> ... </QUALF>
         <IDTNR> ... </IDTNR>
      </E1EDP19>
      <E1EDP19>
         <QUALF> ... </QUALF>
         <IDTNR> ... </IDTNR>
      </E1EDP19>
   </E1EDP01>
<u>target structure:</u>
<LineItem>
   <IDTNR></IDTNR>
</LineItem>
<LineItem>
   <IDTNR></IDTNR>
</LineItem>
That means:
For every <E1EDP01> in the source structure I create one <LineItem> in the target structure. One E1EDP01-Element can contain more than one E1EDP19-Elements. I have to loop over these E1EDP19-Elements, because I have to locate the Element <QUALF> with a given (fixed) value. The Mapping should put the value from the Element <IDTNR> from the source structure - where the QUALF-Element has this given value - in the IDTNR-Element of the target structure.
I tried it with a UDF, but only the first <IDTNR> in the target structure got filled.
Thanks for your help
Christopher

Thank you,
but how I can set the Elements IDTNR and QUALF to the context E1EDP01?
In the splitByValue-Function do I need "each value"?
best regards
Christopher

Looping over cfset tag

Hey Guys,
I am having a problem with cfloop. What I am trying to do is
calculate points on an Oline March Madness Pool. I need to evaluate
if the user picks are equal to the game winners. I can do it if I
manually type each pick # and each game # but I would much rather
loop over a cfset tag since there are 63 picks and games. You can
check out my code below to get a better idea of what I am trying to
do. While I know I can't include the #'s on the right side of the
cfset tag in this way I included them anyways to better illustrate
where I would like to loop it. Is there a way to do this, or will I
have to manually set each pick?

<cfif getGames.game#l# EQ
userPoints[#userID#]["pick#l#"]>
I'm going to guess this is line 27 or very near it.
Your actual <cfset> line looks fine to me assuming all
the relevant keys
exist when they need to exist. I would have written it
something like:
<cfset userPoints[userID]["pick" & i] =
variables["pick" & i]>
The if statement should probably look like this:
<cfif getGames["game" & i] EQ
userPoints[userID]["pick" & i]>
All your index variables are the letter "i" and not the
number "1"
aren't they? I don't believe a singe number is a valid CF
variable name.

Session Problems: "Don't know how to iterate over supplied "items""

Hi, I am developing my first application using Struts and JSP. The Action Form loads an object called reportGrid into session and I am trying to display it on a JSP page. Displaying simple variables works fine, but I can display an object. The error I receive is: Don't know how to iterate over supplied "items"
My object is made up of a group of ArrayLists looks similar to this this:
        private List affiliateID;
     private List affiliateName;
     private List product1;
     private List product2;
     //etc for about 10 listsThe object is filled with data from a result set and placed into session like:
     HttpSession session = request.getSession();
     session.setAttribute("grid", reportGrid);The goal is to display each list in its own column in a HTML table.
<table>
<tr>
<c:forEach var="affiliateName" items="${grid}">
          <td>
               <c:out value="${affiliateName}" />
          </td>
     </c:forEach>
     <c:forEach var="product1" items="${grid}">
          <td>
               <c:out value="${product1}" />
          </td>
     </c:forEach>
     <c:forEach var="product2" items="${grid}">
          <td>
               <c:out value="${product2}" />
          </td>
     </c:forEach>
</tr>
</table>I'm sure this has been asked before but I could not find any examples in the forums. I can place an ArrayList directly into session and iterate through using <c:forEach tags but when I try to do the same with an object it gives me the error " Don't know how to iterate over supplied "items" ".
Does anyone have any examples of pulling and displaying an object in session which contains ArrayLists? I have been stuck on this same error for a while and any help will be greatly apreciated.
James.

What is the type of grid?

Move next/previous buttons in a region with over 100 items

Hi,
Is there a way to show items in a region in chunks and then have a move next/previous buttons. I have a region on a page that has over 100 items how can I show 10 items a time and then have move next/previous buttons. I am using 10.1.2.0.2
Thanks

In the "what to search" tab, select the pagegroup where stands your page.
below teh pagegroup selection you got an option named "Which pages should be searched?"
Browse to your page.
Leave the search criterias blank (so taht the portlet won't make any filter)
In the "results display" tab, select the pagination.
Now, your portlet will display all items on your page.
The best way to use it is to put all your items on page1.
Create a page2 with only this portlet configured to serach for all items on page1.
In your portal, just make a link to page2.
hope this will be helpfull.

Looping over fields from internal table

In a FM I have to check records of two ITABs against each other. Most fields can be checked 1:1 but some must be checked according to some business logic.
I first want to check field-by-field and then I want to deal with exceptions.
Question: How can I loop over fields in an ITAB in such a manner that I can compare fields?

Hi, you can loop thru the columns(fields) of an internal table like so.
field-symbols: <fs>.
loop at itab.
do.
* Here you can use the field name instead of SY-INDEX
   assign component sy-index of structure itab to <fs>.
   if sy-subrc <>.
   exit.
   endif.
* Now that you have access to the field via field symbol, you can compare
* this value.
Write:/ <fs>.
enddo.
endloop.
Regards,
Rich Heilman

Why optimizer prefers nested loop over hash join?

What do I look for if I want to find out why the server prefers a nested loop over hash join?
The server is 10.2.0.4.0.
The query is:
SELECT p.*
    FROM t1 p, t2 d
    WHERE d.emplid = p.id_psoft
      AND p.flag_processed = 'N'
      AND p.desc_pool = :b1
      AND NOT d.name LIKE '%DUPLICATE%'
      AND ROWNUM < 2tkprof output is:
Production
call     count       cpu    elapsed       disk      query    current        rows
Parse        1      0.01       0.00          0          0          4           0
Execute      1      0.00       0.01          0          4          0           0
Fetch        1    228.83     223.48          0    4264533          0           1
total        3    228.84     223.50          0    4264537          4           1
Misses in library cache during parse: 1
Optimizer mode: ALL_ROWS
Parsing user id: 108 (SANJEEV)
Rows     Row Source Operation
      1 COUNT STOPKEY (cr=4264533 pr=0 pw=0 time=223484076 us)
      1   NESTED LOOPS (cr=4264533 pr=0 pw=0 time=223484031 us)
10401    TABLE ACCESS FULL T1 (cr=192 pr=0 pw=0 time=228969 us)
      1    TABLE ACCESS FULL T2 (cr=4264341 pr=0 pw=0 time=223182508 us)Development
call     count       cpu    elapsed       disk      query    current        rows
Parse        1      0.01       0.00          0          0          0           0
Execute      1      0.00       0.01          0          4          0           0
Fetch        1      0.05       0.03          0        512          0           1
total        3      0.06       0.06          0        516          0           1
Misses in library cache during parse: 1
Optimizer mode: ALL_ROWS
Parsing user id: 113 (SANJEEV)
Rows     Row Source Operation
      1 COUNT STOPKEY (cr=512 pr=0 pw=0 time=38876 us)
      1   HASH JOIN (cr=512 pr=0 pw=0 time=38846 us)
     51    TABLE ACCESS FULL T2 (cr=492 pr=0 pw=0 time=30230 us)
    861    TABLE ACCESS FULL T1 (cr=20 pr=0 pw=0 time=2746 us)

sanjeevchauhan wrote:
What do I look for if I want to find out why the server prefers a nested loop over hash join?
The server is 10.2.0.4.0.
The query is:
SELECT p.*
FROM t1 p, t2 d
WHERE d.emplid = p.id_psoft
AND p.flag_processed = 'N'
AND p.desc_pool = :b1
AND NOT d.name LIKE '%DUPLICATE%'
AND ROWNUM < 2
You've got already some suggestions, but the most straightforward way is to run the unhinted statement in both environments and then force the join and access methods you would like to see using hints, in your case probably "USE_HASH(P D)" in your production environment and "FULL(P) FULL(D) USE_NL(P D)" in your development environment should be sufficient to see the costs and estimates returned by the optimizer when using the alternate access and join patterns.
This give you a first indication why the optimizer thinks that the chosen access path seems to be cheaper than the obviously less efficient plan selected in production.
As already mentioned by Hemant using bind variables complicates things a bit since EXPLAIN PLAN is not reliable due to bind variable peeking performed when executing the statement, but not when explaining.
Since you're already on 10g you can get the actual execution plan used for all four variants using DBMS_XPLAN.DISPLAY_CURSOR which tells you more than the TKPROF output in the "Row Source Operation" section regarding the estimates and costs assigned.
Of course the result of your whole exercise might be highly dependent on the actual bind variable value used.
By the way, your statement is questionable in principle since you're querying for the first row of an indeterministic result set. It's not deterministic since you've defined no particular order so depending on the way Oracle executes the statement and the physical storage of your data this query might return different results on different runs.
This is either an indication of a bad design (If the query is supposed to return exactly one row then you don't need the ROWNUM restriction) or an incorrect attempt of a Top 1 query which requires you to specify somehow an order, either by adding a ORDER BY to the statement and wrapping it into an inline view, or e.g. using some analytic functions that allow you specify a RANK by a defined ORDER.
This is an example of how a deterministic Top N query could look like:
SELECT
FROM
SELECT p.*
    FROM t1 p, t2 d
    WHERE d.emplid = p.id_psoft
      AND p.flag_processed = 'N'
      AND p.desc_pool = :b1
      AND NOT d.name LIKE '%DUPLICATE%'
ORDER BY <order_criteria>
WHERE ROWNUM <= 1;Regards,
Randolf
Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/

Looping over matrix items

Similar Messages

Maybe you are looking for