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• Using EclipseLink

  - by Ross Peoples

  I am still new to Java and Eclipse and I'm trying to get my application to connect to a database. I think I want to use EclipseLink, but all of the documentation on the matter assumes you already know everything there is to know about everything. I keep getting linked back to this tutorial: http://www.vogella.de/articles/JavaPersistenceAPI/article.html But it's basically useless because it doesn't tell you HOW to do anything. For the Installation section, it tells you to download EclipseLink and gives you a link to the download page, but doesn't tell you what to do with it after you download. The download page doesn't either. I used the "Install new software" option in Eclipse to install EclipseLink into Eclipse, but it gave me like 4 different options, none of which are explained anywhere. It gave me options JPA, MOXy, SDO, etc, but I don't know which one I need. I just installed them all. Everything on the web assumes you are already a Java guru and things that are second nature to Java devs are never explained, so it's very frustrating for someone trying to learn. So how do I install and USE EclipseLink in my project and what do I need to do to connect it to a Microsoft SQL server? Again, I am new to all of this so I have no clue what to do. Thanks for the help.

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• How to Sort ip addresses and merge two files in efficent manner using perl or *nix commands?

  - by berkay

  (*) This problem should be done in perl or any *nix commands. i'm working on a program and efficiency matters.The file1 consists ip addresses and some other data: index ipsrc portsrc ip dest port src 8 128.3.45.10 2122 169.182.111.161 80 (same ip src and dst) 9 128.3.45.10 2123 169.182.111.161 22 (same ip src and dst) 10 128.3.45.10 2124 169.182.111.161 80 (same ip src and dst) 19 128.3.45.128 62256 207.245.43.126 80 and other file2 looks like (file1 and file2 are in different order) 128.3.45.10 ioc-sea-lm 169.182.111.161 microsoft-ds 0 0 3 186 3 186 128.3.45.10 hypercube-lm 169.182.111.161 https 0 0 3 186 3 186 128.3.44.112 pay-per-view 148.184.171.6 netbios-ssn 0 0 3 186 3 186 128.3.45.12 cadabra-lm 148.184.171.6 microsoft-ds 0 0 3 186 3 186 1- SORT file1 using IP address in second column and SORT file2 using IP address in first column 2- Merge the 1st, 3rd and 5th columns of File1 with File 2 i need to create a new file which will look: 128.3.45.10 ioc-sea-lm 169.182.111.161 microsoft-ds 0 0 3 186 3 186 --> 2122 80 8 128.3.45.10 hypercube-lm 169.182.111.161 https 0 0 3 186 3 186 --> 2123 22 9 128.3.44.112 pay-per-view 148.184.171.6 netbios-ssn 0 0 3 186 3 186 --> * * * 128.3.45.12 cadabra-lm 148.184.171.6 microsoft-ds 0 0 3 186 3 186 --> * * * basically port numbers and index number will be added.

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• problem on ajax call

  - by praveen

  hi i am using mootools ajax request in my project. its works properly but when i make request for it aborted first time and second time request mad. consequently abortion of request increase by one at each click. my code is following function addStepConfiguration(id,mystrip,comment,error,submitid) { // alert(id+'\n'+mystrip+'\n'+comment+'\n'+error+'\n'+submitid.value); $(id).addEvent('submit', function(e) { e.stop(); this.set('send', { onRequest:function(html){ $(submitid).setStyle('display','none'); loading_Img(); }, onComplete: function(responseText) { $('loading_img').innerHTML = ''; SplittedResText = responseText.split("|"); s //alert(SplittedResText); if(SplittedResText[1]=='undefined') { $(error).innerHTML=SplittedResText[0]; $(submitid).setStyle('display','block'); } else { $(comment).innerHTML=SplittedResText[0]; $(mystrip).set('class',SplittedResText[1]); //$(image).setProperty('src',SplittedResText[2]); removeMsg.delay(20,'',error); removeMsg.delay(3000,'',comment); $(submitid).setStyle('display','block'); } } }); this.send(); }); }

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• VB.NET - Removing a number from a random number generator

  - by Alex

  I am trying to create a lottery simulator. The lottery has 6 numbers, the number generated must be between 1 - 49 and cannot be in the next number generated. I have tried using the OR function but I'm not entirely sure if I am using it properly. Any help would be great. Thanks. Public Class Form1 Private Sub cmdRun_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdRun.Click 'Creates a new Random class in VB.NET Dim RandomClass As New Random() '#################################### Dim RandomNumber1 As Integer RandomNumber1 = RandomClass.Next(1, 49) 'Displays first number generated txtFirst.Text = (RandomNumber1) '#################################### Dim RandomNumber2 As Integer RandomNumber2 = RandomClass.Next(1, 49) If RandomNumber2 = RandomNumber1 Then RandomNumber2 = RandomClass.Next(1, 49) End If 'Displays second number generated txtSecond.Text = (RandomNumber2) '#################################### Dim RandomNumber3 As Integer RandomNumber3 = RandomClass.Next(1, 49) If RandomNumber3 = RandomNumber2 Or RandomNumber2 Then RandomNumber3 = RandomClass.Next(1, 49) End If 'Displays third number generated txtThird.Text = (RandomNumber3) '#################################### Dim RandomNumber4 As Integer RandomNumber4 = RandomClass.Next(1, 49) If RandomNumber4 = RandomNumber3 Or RandomNumber2 Or RandomNumber1 Then RandomNumber4 = RandomClass.Next(1, 49) End If 'Displays fourth number generated txtFourth.Text = (RandomNumber4) '#################################### Dim RandomNumber5 As Integer RandomNumber5 = RandomClass.Next(1, 49) If RandomNumber5 = RandomNumber4 Or RandomNumber3 Or RandomNumber2 Or RandomNumber1 Then RandomNumber5 = RandomClass.Next(1, 49) End If 'Displays fifth number generated txtFifth.Text = (RandomNumber5) '#################################### Dim RandomNumber6 As Integer RandomNumber6 = RandomClass.Next(1, 49) If RandomNumber6 = RandomNumber5, RandomNumber4, RandomNumber3, RandomNumber2, RandomNumber1 Then RandomNumber6 = RandomClass.Next(1, 49) End If 'Displays sixth number generated txtSixth.Text = (RandomNumber6) End Sub

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• UpdatePanel not refreshing in Accordion

  - by TenaciousImpy

  Hi, I'm using MS AJAX's accordion control. It works fine normally, but I can't seem to get it to work with an UpdatePanel. My layout is like this: <div id="accordion"> <div><a href="#">Header1</a></div> <div class="acc_content"> <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional" > <ContentTemplate> <asp:button id="btnToggle" runat="server" text="toggle"/> //my repeater contents go here. The buttons within the repeater cause a postback, but changes cannot be seen unless the page is manually refreshed (since the updatepanel doesn't refresh) </ContentTemplate> <Triggers> <asp:AsyncPostBackTrigger ControlID="btnToggle" EventName="click" /> <asp:AsyncPostBackTrigger ControlID="btnAdd" EventName="click" /> //this button is outside the updatepanel </ContentTemplate> </Triggers> </asp:UpdatePanel> </div> <div><a href="#">Header 2 </a></div> <div class="acc_content"> Content of the second pane </div> </div> There are postbacks occurring when I click the buttons, but the updatepanel never refreshes or updated. I tried adding UpdatePanel1.Update() in the code-behind for each postback event, but no luck. Any ideas as to why this is happening? Thanks

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• Windows update breaks dlls?

  - by shoosh

  I'm compiling a project which uses multiple DLL and compiles with VS2008. After a recent windows update DLLs compiled on my computer stopped working on other computers. After some investigation it turned out that it updated the CRT redistributable library which I'm compiling with from version "9.0.21022.8" to version "9.0.30729.4148" This is evident from the Manifest file of the EXE i'm compiling. it contains the following: <dependency> <dependentAssembly> <assemblyIdentity type="win32" name="Microsoft.VC90.CRT" version="9.0.21022.8" processorArchitecture="amd64" publicKeyToken="1fc8b3b9a1e18e3b"></assemblyIdentity> </dependentAssembly> </dependency> <dependency> <dependentAssembly> <assemblyIdentity type="win32" name="Microsoft.VC90.CRT" version="9.0.30729.4148" processorArchitecture="amd64" publicKeyToken="1fc8b3b9a1e18e3b"></assemblyIdentity> </dependentAssembly> </dependency> Meaning it wants to use two different versions of the CRT at the same time. the second version is needed by the code which I'm compiling right now and the first version is needed by older dlls which were compiled a few weeks ago. In the computers where the application is deployed this becomes a problem since they get their CRT dll from a local folder called Microsoft.VC90.CRT and not from WinSXS. This folder can't contain two different versions of the dll. Is there a known solution to this issue or do I need to start compiling all of the other DLLs with the new CRT?

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• ASP.Net ListView and event handling.

  - by Neil

  I have an .ascx which contains a listview. Let's call it the parent. Within its ItemTemplate I reference a second .ascx which is basically another listview, let's call it the child. On the parent, the child control is wrapped in a placeholder tag. I use this place holder tag to show and hide the child. Psuedo code: The child listview has a 'close' button in its Layout Template. Let's call it "btnClose" with an onClick event of "btnClose_Click". I want to use this button to set the visibility of the containing placeholder. I'm trying to avoid doing something like using PlaceHolder plhChild = (PlaceHolder)childListCtl.NamingContainer since I can't guarantee every instance of the child .ascx will be contained within a placeholder. I tried creating an event in the child that could be subscribed to. Psuedo code: public delegate CloseButtonHandler(); public event CloseButtonHandler CloseButtonEvent; And in the actual btnClose_Click(Object sender, EventArgs e) event I have: if (CloseButtonEvent != null) CloseButtonEvent(); My problem is that the delegate CloseButtonEvent is always null. I've tried assigning the delegate in the listview's OnDatabound event of the parent and on the click event, to set the plhChild.visible = true, and I've stepped through the code and know the delegate instantiation works in both place, but again, when it gets to the btnClose_Click event on the child, the delegate is null. Any help would be appreciated. Neil

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• Runtime binding of XML Schema to Java code

  - by Yaneeve

  Hi all, The situation is thus: I have an application which provides editing capabilities to XML an file. This file follows a certain Schema. The Schema belongs to a subset of Schemas which actually follow a line of evolution from one to another - so they are not so different from one another. The main difference between the schemas is an enumeration of string labels. I now have need to save "meta data" in XML format (This is a second type of XML file). This "meta data" contains a list of labels from the set enumerated in the schema. The application can accept a new schema at runtime and adjust itself. Therefore I have an XML file that must be validated by two schemas one static containing the basic structure of the "meta data" stored in the XML and one which contains the 'proper' label enumeration. The latter schema is determined at runtime. I have glanced over JAXB, XMLBeans and JiBX. I can't figure out what technology to choose that would allow for a runtime bind of code and schema in the way that would most benefit my use-case. Any suggestions? Thanks!

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• how to fix: ctags null expansion of name pattern "\1"

  - by bua

  Hi, As the title points I have problem with ctags when trying to parse user-defined language. Basically I've followed those instructions. The quickest and easiest way to do this is by defining a new language using the program options. In order to have Swine support available every time I start ctags, I will place the following lines into the file $HOME/.ctags, which is read in every time ctags starts: --langdef=swine --langmap=swine:.swn --regex-swine=/^def[ \t]*([a-zA-Z0-9_]+)/\1/d,definition/ The first line defines the new language, the second maps a file extension to it, and the third defines a regular expression to identify a language definition and generate a tag file entry for it. I've tried different flags: b,e for regex. My definition of tag is: --regex-q=/^[ \t]*[^[:space:]]*[:space:]*:[:space:]*{/\l/f,function/b When I replace \1 with anything else (ascii caracter set ), It works. the output is: (--regex-q=/^[ \t]*[^[:space:]]*[:space:]*:[:space:]*{/my function name/f,function/b) !_TAG_FILE_FORMAT 2 /extended format; --format=1 will not append ;" to lines/ !_TAG_FILE_SORTED 1 /0=unsorted, 1=sorted, 2=foldcase/ !_TAG_PROGRAM_AUTHOR Darren Hiebert /[email protected]/ !_TAG_PROGRAM_NAME Exuberant Ctags // !_TAG_PROGRAM_URL http://ctags.sourceforge.net /official site/ !_TAG_PROGRAM_VERSION 5.8 // my function name file.q /^.ras.getLocation:{[u]$/;" f my function name file.q /^.a.getResource:{[u; pass]$/;" f my function name file.q /^.a.init:{$/;" f my function name file.q /^.a.kill:{[u; force]$/;" f my function name file.q /^.asdf.status:{[what; u]$/;" f my function name file.q /^.pc:{$/;" f Why \1 doesn't work? (I've tried all 1-9)

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• Cloning items in a listbox c#

  - by Jenny

  I have 2 list boxes and want to be able to copy selected items from one to the other how ever many times I want. Ive managed to do this but I have buttons on the 2nd list box that allow me to go up and down..Now when theres to items in the second list box that are the same (e.g "gills" and "gills") it doesnt behave normally and crashes. Is there a way in which I can get them to act as seperate items in the 2nd listbox? code private void buttonUp_Click(object sender, EventArgs e) { object selected = listBox2.SelectedItem; int index = list2.Items.IndexOf(selected); listBox2.Items.Remove(selected); listBox2.Items.Insert(index - 1, selected); listBox2.SetSelected(index - 1, true); } private void buttonAdd_Click(object sender, EventArgs e) { DataRowView selected = (DataRowView)listBox1.SelectedItem; string item = selected["title"].ToString(); listBox2.Items.Add(item); } It works fine when i havnt got duplicates but when i do they just jump around randomly when i press up/down. (ive not included down as its pretty much the same as up)

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• What is the fastest, most efficient way to get up to speed on a new technology?

  - by SLC

  My current job involves working with a huge number of technologies, most of which are very niche and unheard of. In some cases I have to write something about the technology, or with the technology, such as some lessons, examples, or tutorials, on behalf of the developer of that technology or someone that is backing it. When I get told to learn about a new technology, my first port of call is to check our internal library, and then look on amazon for a book on the subject. Failing that, or if the project is too small to warrant a purchase, I hit up google and youtube. However the results of randomly googling what I want to learn are hit and miss. Some days, I can find everything I want to know in a series of lessons or videos, and it's no problem. Other times, I can find almost nothing, and I really have to piece together things from sites. The result is that there are various resources out there, videos, interactive lessons, tutorials, books etc. but when I need to learn something fast, I often don't know the best way to go about it. It's not about fun, because I don't always have the luxury of working my way through a 600 page textbook named "A Complete Guide To Technology X", I have to deliver results quickly. One of the examples I'd like to use is ASP.NET MVC 2 which is something I have been told to learn. I grabbed a book on MVC 1 to refresh my knowledge, but googling it does't produce much useful information. I've seen a ton of ScottGu's tutorials on it, but they are mostly feature presentations, and some date back almost a year. The same applies to channel 9 and there are no books out yet on amazon. My question therefore has two parts, the first asks, "Where are the best places to look to get the information needed to learn a new technology?" and the second asks "What is the most efficient way to use such resources to learn a new technology?"

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• Array: mathematical sequence

  - by VaioIsBorn

  An array of integers A[i] (i 1) is defined in the following way: an element A[k] ( k 1) is the smallest number greater than A[k-1] such that the sum of its digits is equal to the sum of the digits of the number 4* A[k-1] . You need to write a program that calculates the N th number in this array based on the given first element A[1] . INPUT: In one line of standard input there are two numbers seperated with a single space: A[1] (1 <= A[1] <= 100) and N (1 <= N <= 10000). OUTPUT: The standard output should only contain a single integer A[N] , the Nth number of the defined sequence. Input: 7 4 Output: 79 Explanation: Elements of the array are as follows: 7, 19, 49, 79... and the 4th element is solution. I tried solving this by coding a separate function that for a given number A[k] calculates the sum of it's digits and finds the smallest number greater than A[k-1] as it says in the problem, but with no success. The first testing failed because of a memory limit, the second testing failed because of a time limit, and now i don't have any possible idea how to solve this. One friend suggested recursion, but i don't know how to set that. Anyone who can help me in any way please write, also suggest some ideas about using recursion/DP for solving this problem. Thanks.

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• Need help figuring out scala compiler errors.

  - by klactose

  Hello all, I have been working on a project in scala, but I am getting some error messages that I don't quite understand. The classes that I am working with are relatively simple. For example: abstract class Shape case class Point(x: Int, y: Int) extends Shape case class Polygon(points: Point*) extends Shape Now suppose that I create a Polygon: val poly = new Polygon(new Point(2,5), new Point(7,0), new Point(3,1)) Then if I attempt to determine the location and size of the smallest possible rectangle that could contain the polygon, I get various errors that I don't quite understand. Below are snippets of different attempts and the corresponding error messages that they produce. val upperLeftX = poly.points.reduceLeft(Math.min(_.x, _.x)) Gives the error: "missing parameter type for expanded function ((x$1) = x$1.x)" val upperLeftX = poly.points.reduceLeft((a: Point, b: Point) => (Math.min(a.x, b.x))) Gives this error: "type mismatch; found : (Point, Point) = Int required: (Any, Point) = Any" I am very confused about both of these error messages. If anyone could explain more clearly what I am doing incorrectly, I would really appreciate it. Yes, I see that the second error says that I need type "Any" but I don't understand exactly how to implement a change that would work as I need it. Obviously simply changing "a: Point" to "a: Any" is not a viable solution, so what am I missing?

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• How can I process an image in .NET for a full-page print with a quality like Windows Photo Gallery d

  - by Triynko

  I'm writing a printing routing in C#, using the .NET PrintDocument class, handling the OnPrintPage event. I've managed to maximize the margins and print the Image in landscape mode, but it simply does not look as good as when I print the same image file from Windows Photo Gallery (formerly Windows Picture and Fax Viewer), the default image preview program in Windows Vista. I noticed an option there for selecting "Sharpen Image for Printing", but what does that do? I've thought about printing copies of the image from Windows Photo Gallery first, then sending the sheets through the printer a second time to print the custom overlays I need, but it's hard to make it line up every time, since the printer sucks the sheet in without the kind of precision I need... so I really need to do ALL the drawing commands within C#, including the image. Does anyone know how to perform pre-processing on the bitmap so that it prints as nicely as Windows Photo Gallery does it? Are there any simple print drivers that can intercept Photo Gallery printing output as a standard image file (bmp, png, etc.) that can be read by the .NET Image class? I'm all for creativity here.

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• How do I grant a site's applet an AllPermission privilege?

  - by nahsra

  I'd like to specify certain applets to run with java.security.AllPermission on my computer (for debugging and security testing). However, I don't want to enable all applets that I run to have this permission. So, editing my user Java policy file (which I have ensured is the correct policy file through testing), I try to put this value: grant codeBase "http://host_where_applet_lives/-" { permission java.security.AllPermission; }; This value fails when the applet tries to do something powerful (create a new Thread, in my case). However, when I put the following value: grant { permission java.security.AllPermission; }; The applet is able to perform the powerful operation. The only difference is the lack of a codeBase attribute. An answer to a similar question asked here [1] seemed to suggest (but never show or prove) that AccessController.doPrivileged() calls may be required. To me, this sounds wrong as I don't need that call when I grant the permissions to all applets (the second example I showed). Even if this is a solution, littering the applets I run with AccessController.doPrivileged() calls is not easy or necessarily possible. To top it off, my tests show that this just doesn't work anyway. But I'm happy to hear more ideas around it. [1] http://stackoverflow.com/questions/1751412/cant-get-allpermission-configured-for-intranet-applet-can-anyone-help

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• Debugging Maya plug-ins: can't get output or debugger to engage

  - by brainjam

  I'm not a total beginner at Maya, but this is my first time trying to write a plug-in for it. I've downloaded the 30-day eval version of Maya2011 (32bit version on 64bit Windows 7), and have tried building a couple of plug-ins with VC 2008 Express. The first one is helloWorldCmd from the sample directory ..\devkit\plug-ins, and it basically doesn't work until you convert the line cout<<"Hello World"<<endl; to cerr<<"Hello World"<<endl;, but I can live with that. The second one is the SelectRingContext2 example from David Gould's book. The plug-in works as advertised, but I cannot get any debugging output from it. I've tried putting cout, cerr,printf, and MGlobal::displayInfo into the doIt() method, and can't get a peep. I also haven't figured out how to run the plug-in in a debugger. I'm afraid I'm missing something easy but slightly obscure, like a flag somewhere. Anybody out there have any hints? Edit: Turns out the action is happening in the redoIt() method. So I can get MGlobal::displayInfo and cerr producing output. Still don't know why cout and printf don't work, and I'm not sure how to run in the debugger. When I run maya -d (which some of the online advice says I should do) it just shows the output window but never loads the rest.

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• Python with Wiimote using pywiiuse module

  - by Anon

  After seeing the abilities and hackibility of wiimotes I really want to use it in my 'Intro to programming' final. Everyone must make a python program and present it to the class. I want to make a game with pygame incorporating a wiimote. I found pywiiuse which is a very basic wrapper for the wiiuse library using c types. I can NOT get anything beyond LEDs and vibrating to work. Buttons, IR, motion sensing, nothing. I've tried different versions of wiiuse, pywiiuse, even python. I can't even get the examples that came with it to run. Here's the code I made as a simple test. I copied some of the example C++ code. from pywiiuse import * from time import sleep #Init wiimotes = wiiuse_init() #Find and start the wiimote found = wiiuse_find(wiimotes,1,5) #Make the variable wiimote to the first wiimote init() found wiimote = wiimotes.contents #Set Leds wiiuse_set_leds(wiimote,WIIMOTE_LED_1) #Rumble for 1 second wiiuse_rumble(wiimote,1) sleep(1) wiiuse_rumble(wiimote,0) #Turn motion sensing on(supposedly) wiiuse_motion_sensing(wiimote,1) while 1: #Poll the wiimotes to get the status like pitch or roll if(wiiuse_poll(wiimote,1)): print 'EVENT' And here's the output when I run it. wiiuse version 0.9 wiiuse api version 8 [INFO] Found wiimote [assigned wiimote id 1]. EVENT EVENT Traceback (most recent call last): File "C:\Documents and Settings\Nick\Desktop\wiimotetext.py", line 26, in <mod ule> if(wiiuse_poll(wiimote,1)): WindowsError: exception: access violation reading 0x00000004 It seems each time I run it, it prints out EVENT 2-5 times until the trace back. I have no clue what to do at this point, I've been trying for the past two days to get it working. Thanks!

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• Seeking reporting or templating tool to generate large formatted PDF reports from dataset

  - by Mr. Tacos

  Say I have some data in MySQL or a big ole CSV file. I also have a report. It's a PDF, call it 100 pages long. I need to generate variations on this PDF for slices of the data. More specific example: I have a CSV file with each StackOverflow user in a row and each column contains various statistics about that user. I have a report called "Your StackOverflow Performance". Its got lots of text, always the same, but each section contains something like: "You Vs. The Average StackOverflow Poster on this metric". I want a table that appears there that has the average data, which is the same in every run of the PDF, in one column. In the second column, I want your data, which is different for each PDF/row in the CSV file/user of StackOverflow. I'm pretty sure people use things like Crystal for this? Is there something in MS SQL Server that's good for this? An open source template language? I'm not even really sure if what I need is called a 'reporting' tool (since I don't really need to do any crunching, the data in this case is being crunched by a series of scripts and SPSS, I don't need bands and subbands and so on) or 'templating'. Is there even such a thing as templating PDFs? Natch, I'd be fine with something that generates output easily scriptable to PDF, like eps, but not something like HTML. The report formatting is fussy and done and externally determined and handed down from on high. It's print-oriented, not webby. Thanks in advance.

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• Unable to download .apk via webbrowser from drupal site

  - by ggrell

  I have a drupal-based website where people can log in and see private discussion forums. This is where I want to have my beta testers for my Android application download the beta .apk files. I tested this thoroughly on my Android 1.6 based myTouch 3G, and was able to log in, and download files attached to forum posts without problems. Now comes the interesting part: my testers on Droids and Nexus Ones (Android 2.0.1 and 2.1) were complaining that their downloads are failing. Since I don't have an 2.0 phone, I tried it out in a 2.0 emulator, and lo-and-behold, it didn't work. The download shows the indeterminate progress for a second or two, then shows "Download unsuccessful". Based on what I see in the logs, it is apparent that the server is returning a 404 for the download request from 2.0 browsers. I can download to my desktop and 1.6 phone no problem. The only reason I can think of that the server would return a 404 for a request is that for some reason the credentials or cookies aren't being passed by the download process. Logcat shows: http error 404 for download x Some background: I added the mime type to my .htaccess like this: AddType application/vnd.android.package-archive apk I checked the server logs and see the following for failed downloads: xx.xx.xx.224 - - [28/Jan/2010:20:39:00 -0500] "GET /system/files/grandmajong-beta090.apk HTTP/1.1" 404 - "http://trickybits.com/forums/beta-testing/grandma-jong/latest-version-090-b1" "Mozilla/5.0 (Linux; U; Android 1.6; en-us; sdk Build/Donut) AppleWebKit/528.5+ (KHTML, like Gecko) Version/3.1.2 Mobile Safari/525.20.1"

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• Django access data passed to form

  - by realshadow

  Hey, I have got a choiceField in my form, where I display filtered data. To filter the data I need two arguments. The first one is not a problem, because I can take it directly from an object, but the second one is dynamically generated. Here is some code: class GroupAdd(forms.Form): def __init__(self, *args, **kwargs): self.pid = kwargs.pop('parent_id', None) super(GroupAdd, self).__init__(*args, **kwargs) parent_id = forms.IntegerField(widget=forms.HiddenInput) choices = forms.ChoiceField( choices = [ [group.node_id, group.name] for group in Objtree.objects.filter( type_id = ObjtreeTypes.objects.values_list('type_id').filter(name = 'group'), parent_id = 50 ).distinct()] + [[0, 'Add a new one'] ], widget = forms.Select( attrs = { 'id': 'group_select' } ) ) I would like to change the parent_id that is passed into the Objtree.objects.filter. As you can see I tried in the init function, as well with kwargs['initial']['parent_id'] and then calling it with self, but that doesnt work, since its out of scope... it was pretty much my last effort. I need to acccess it either trough the initial parameter or directly trough parent_id field, since it already holds its value (passed trough initial). Any help is appreciated, as I am running out of ideas.

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• jQuery image preload/cache halting browser

  - by Nathan Loding

  In short, I have a very large photo gallery and I'm trying to cache as many of the thumbnail images as I can when the first page loads. There could be 1000+ thumbnails. First question -- is it stupid to try to preload/cache that many? Second question -- when the preload() function fires, the entire browser stops responding for a minute to two. At which time the callback fires, so the preload is complete. Is there a way to accomplish "smart preloading" that doesn't impede on the user experience/speed when attempting to load this many objects? The $.preLoadImages function is take from here: http://binarykitten.me.uk/dev/jq-plugins/107-jquery-image-preloader-plus-callbacks.html Here's how I'm implementing it: $(document).ready(function() { setTimeout("preload()", 5000); }); function preload() { var images = ['image1.jpg', ... 'image1000.jpg']; $.preLoadImages(images, function() { alert('done'); }); } 1000 images is a lot. Am I asking too much?

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• pylons on production server fedora 8

  - by stormdrain

  I'm interested in learning some python, and thought Pylons would be a good starting point (after spending 2 days trying to get django working -- to no avail). I have an Amazon EC2 instance with Fedora 8 on it. It is a bare-bones install. I am halfway through my second day of trying to get it to work. I have mod_wsgi installed. I have Apache (though that's a later task to tackle). I have easy_install, paster is working fine; basically all of the pre-requisites mentioned throughout the Pylons docs. I can't for the life of me get the thing to work. And I can't seem to find a coherent walkthough anywhere that lists all the steps necessary. There is tons of info out there, but it is all scattered. Wsgi this, python that. Google, google, google... "47 million results found for 'socket.error:(lol, 'Yous a goofs')". So, this is my latest attempt: apachectl -k stop cd /home/ paster create -t pylons test [blah blah.. ok] cd test nano development.ini [hmm, last time I changed the host from 127.0.0.1 to my domain name or url, it threw an error like socket.error: (99, 'Cannot assign requested address')... I'll just leave it] [open port 5000 on firewall] paster serve development.ini [firefox-url:5000] Firefox can't establish a connection to the server Doing these steps locally works as expected. This is just a test to see if I can get it to work at all, which I can't. If I get it to work, then is the task of getting it to work with apache. My madness is that I'd like to play around a little developing and deploying before diving into a full-fledged project. So far: self, I am dissapoint.

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• WCF events in server-side

  - by Eisenrich

  Hi all, I'm working on an application in WCF and want to receive events in the server side. I have a web that upon request needs to register a fingerprint. The web page request the connection of the device and then every second for 15 seconds requests the answer. The server-side code is apparently "simple" but doesn't work. Here is it: [ServiceContract] interface IEEtest { [OperationContract] void EEDirectConnect(); } class EETest : IEEtest { public void EEDirectConnect() { CZ ee = new CZ(); // initiates the device dll ee.Connect_Net("192.168.1.200", 4011); ee.OnFinger += new _IEEEvents_OnFingerEventHandler(ee_OnFinger); } public void ee_OnFinger() { //here i have a breakpoint; } } every time I put my finger, it should fire the event. in fact if I static void Main() { EETest pp = new EETest(); pp.EEDirectConnect(); } It works fine. but from my proxy it doesn't fire the event. do you have any tips, recommendations, or can you see the error? Thanks everyone.

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• AsyncTask and Contexts

  - by Michael

  So I'm working out my first multi-threaded application using Android with the AsyncTask class. I'm trying to use it to fire off a Geocoder in a second thread, then update the UI with onPostExecute, but I keep running into an issue with the proper Context. I kind of hobbled my way through using Contexts on the main thread, but I'm not exactly sure what the Context is or how to use it on background threads, and I haven't found any good examples on it. Any help? Here is an excerpt of what I'm trying to do: public class GeoCode extends AsyncTask<GeoThread, Void, GeoThread> { @Override protected GeoThread doInBackground(GeoThread... i) { List<Address> addresses = null; Geocoder geoCode = null; geoCode = new Geocoder(null); //Expects at minimum Geocoder(Context context); addresses = geoCode.getFromLocation(GoldenHour.lat, GoldenHour.lng, 1); } } It keeps failing at the sixth line there, because of the improper Context.

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• Slow Databinding setup time in C# .NET 4.0

  - by Svisstack

  Hello, I have got a problem. I have windows forms application with dynamic generated layout, but i have a problem in performance. In this form i use DataBinding from .NET 4.0 and databinding after setup works fine, but he binding setup time for ONE control blocking my application on approx 0.7 second. I have some controls and time of binging setuping is around 2 minutes. I trying all possible solutions, I dont have any ideas without write self binding class. Why is wrong with my code? case "Boolean": { Binding b = new Binding("Checked", __bindingsource, __ep.Name); CheckBox cb = new CheckBox(); /* * HERE is the problem */ cb.DataBindings.Add(b); /* * HERE is the end of problem */ __flp.Controls.Add(cb); __bindingcontrol.AddBinding(b); break; } Without problem code lines all works fast and without binding ;-( but i want binding turn on in normal speed. PS1. I have suspended layout in generation time. PS2. I have same problem with binding TextBox'es, PictureBoxe's, CheckBox is only example. How to do that?

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