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  • (iPhone SDK) How to link instance variables to a specific UILabel

    - by Timbo
    I'm using the iPhone SDK to build a simple application. I've created a brand new class which has a single variable. I need to make 5 instances of that class, which I have no trouble doing. I can create those instances and also set the variables without issue. What i do need to know is this: How do I link each of the 5 different instances of the variable to different and specific UILabels? Would I be better to create a method that dynamically creates and positions the labels? Thanks for your help in advance, I'm now to this iphone programming thing. I'm serious about learning fast though so I have posted a bounty on this question here : http://www.askearn.com/Responses.aspx?QuestionID=6542613f-7be8-4bb3-a950-aac218d47711

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  • Tree item edit event listener in flex

    - by Biroka
    I want to catch itemEditEnd in a tree control, but i'm having a little trouble. I call the item editing a bit different: <mx:Tree id="tree" width="100%" height="100%" itemDoubleClick="treeProjects_itemDoubleClickHandler(event)" doubleClickEnabled="true" editable="true" itemEditBeginning="treeProjects_itemEditBeginingHandler(event)" itemEditEnd="treeProjects_itemEditEndHandler(event)" > but: protected function treeProjects_itemEditBeginingHandler(event:ListEvent):void { event.preventDefault(); } i do this, because I want to edit the field just when clicking rename in the context menu. And when I click rename in the context menu, this is what i'm doing (contextParentItem is the event catched on itemRollOver in the tree) : Tree( contextParentItem.target ).editedItemPosition = { columnIndex: 0, rowIndex: contextParentItem.rowIndex }; Thisway I can't catch the itemEditEnd event, but I want to handle some stuff, like: if the new entered value is an empty string, then I don't want to accept the new value if I hit ESC then, the old value should remain.

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  • How can I redirect the output of Perl's system() to a filehandle?

    - by syker
    With the open command in Perl, you can use a filehandle. However I have trouble getting back the exit code with the open command in Perl. With the system command in Perl, I can get back the exit code of the program I'm running. However I want to just redirect the STDOUT to some filehandle (no stderr). My stdout is going to be a line-by-line output of key-value pairs that I want to insert into a mao in perl. That is why I want to redirect only my stdout from my Java program in perl. Is that possible? Note: If I get errors, the errors get printed to stderr. One possibility is to check if anything gets printed to stderr so that I can quite the Perl script.

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  • How to determine Windows.Diagnostics.Process from ServiceController

    - by Alex
    This is my first post, so let me start by saying HELLO! I am writing a windows service to monitor the running state of a number of other windows services on the same server. I'd like to extend the application to also print some of the memory statistics of the services, but I'm having trouble working out how to map from a particular ServiceController object to its associated Diagnostics.Process object, which I think I need to determine the memory state. I found out how to map from a ServiceController to the original image name, but a number of the services I am monitoring are started from the same image, so this won't be enough to determine the Process. Does anyone know how to get a Process object from a given ServiceController? Perhaps by determining the PID of a service? Or else does anyone have another workaround for this problem? Many thanks, Alex

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  • Where and which data to save into session on an ASP.NET MVC 2 application?

    - by Shaharyar
    I am having some trouble saving the state of my current view. Currenly I have several selectlist calling their own Action method on the controller that returns the Index view with the filtered model based on the values of the selectlist. I have also written a little FileResult action that creates a csv file based on the current model. But I am only covering one selectlist right now as I only save the value of selectList1 into the session and access it with Session["SelectListValue1"] What are the best practices in this situation? Should I redo the entire (each action for each SelectList) part? Should I save each SelectLists value into the session and check if it's null? Or should I just save the Lambda Expression into the session and modify it during every call?

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  • Infix to Postfix and unary/binary operators

    - by Jaapjan
    I have a piece of code that converts an infix expression to an expression tree in memory. This works just fine. There's just one small trouble. I just connect work out how to involve the unary operators correctly (the right associative ones). With the following infix expression : +1 + +2 - -3 - -4 I would expect an RPN of: 1+2++3-4-- Yet, none of the online infix-post converters I can find handle this example in the way I would expect. Does anyone have a clear explanation of handling right associative operators, specifically the binary ones that can be mistaken for the unary ones?

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  • DisplayObject.rotation not matching trig functions

    - by futuraprime
    I'm trying to label an animated pie chart, and I've been having a great deal of trouble getting rotated objects to line up with trigonometrically-positioned objects. So, for example, if I have a pie piece that's middle is angle theta and has been rotated n degrees in a tween, and then I try to position a label with code like this: label.x = center.x + Math.cos((theta + n)/180 * Math.PI) * radius; label.y = center.y + Math.sin((theta + n)/180 * Math.PI) * radius; the label is often not aligned with the center of the pie slice. Since I am also zooming in to the pie chart a great deal, the error becomes significant enough that it occasionally causes the label to miss the pie slice altogether. The error seems relatively unpredictable, and it looks a great deal like a rounding error, but I don't see any obvious rounding going on (the trig functions evaluate to ten or so decimal places, which should be more than enough here). How can I get these labels to position correctly?

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  • Joining two queries into one query or making a sub-query

    - by gary A.K.A. G4
    I am having some trouble with the following queries originally done for some Access forms: SELECT qry1.TCKYEAR AS Yr, COUNT(qry1.SID) AS STUDID, qry1.SID AS MID, table_tckt.tckt_tick_no FROM table_tckt INNER JOIN qry1 ON table_tckt.tckt_SID = qry1.SID GROUP BY qry1.TCKYEAR, qry1.SID, table_tckt.tckt_tick_no HAVING (((table_tckt.tick_no)=[forms]![frmNAME]![cboNAME])); SELECT table_tckt.sid, FORMAT([tckt_iss_date], 'yyyy') AS TCKYEAR, table_tckt.tckt_tick_no, table_tckt.licstate FROM table_tckt WHERE (((table_tckt.licstate)<>"NA")); I am no longer working with Access, but JSP for the forms. I need to somehow either combine these two queries into one query or find another way to have a query 'query' another one.

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  • using a texture mesh and wireframe mesh in threejs

    - by Andy Poes
    I'm trying to draw a wireframe mesh and a textured mesh in threeJS but when I have both added to my scene the textured mesh doesn't display. Code below: I'm having trouble creating two meshes that share the same geometry where one of the materials is wireframe and the other is a texture. If one of the materials is wireframe and the other is just a color fill it works fine- but as soon as I make the second material a texture it stops working. If I comment out scene.add( wireMesh ); then the textured mesh shows up. var wireMat = new THREE.MeshBasicMaterial( { color:0x00FFFF, wireframe: true, transparent: true, overdraw:true } ); var wireMesh = new THREE.Mesh(geometry, wireMat); scene.add( wireMesh ); var texture = texture = THREE.ImageUtils.loadTexture( 'textures/world.jpg' ); var imageMat = new THREE.MeshBasicMaterial( {color:0xffffff, map: texture } ); var fillMesh = new THREE.Mesh(geometry, imageMat); scene.add( fillMesh );

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  • How to build LLVM using GCC 4 on Windows?

    - by Steve314
    I have been able to build LLVM 2.6 (the llvm-2.6.tar.gz package) using MinGW GCC 3.4.5. I haven't tested properly, but it seems to work. The trouble is, I have libraries of my own which don't build using GCC3, but which work fine in GCC4 (template issues). I believe the first official GCC4 version for MinGW is GCC 4.4.0. EDIT Decluttered - everything useful in the "tried this tried that" info is now in the answer. EDIT Most of this question/answer is redundant with LLVM 2.7 - the standard configure, make routine works fine in MinGW with no hacks or workarounds.

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  • PPP connection with RAS dialer in C++

    - by user312054
    I have a windows mobile application that is using Windows CE 5.0. I have been informed by the people supplying the hardware for the unit that I need to create a socket, which I have done successfully, and then dial out to the internet with a PPP connection with a RAS dialer connection. Our old code uses an APN to dial out so I need to create the above connection with an APN. I am having trouble finding examples of this. Can someone point me to some examples of this situation?

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  • Actionscript 3 Sprite AddChild

    - by Amy
    Im new to actionscript 3 and am a little confused about how the addchild function works. I want to draw 5 houses. each house has a roof and wall. Each wall has a door and a window. I have the following classes and this is how I grouped them class Main class House class Roof //a triangle class Wall //a rectangle class Door //a rectangle class Window //a square Im having trouble with inheritance of the classes. I cant made the wall class show up with a window and a door. Can someone point me to the right direction?

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  • Hide horizontal scrollbar in IE 7 and below

    - by Bradley Bell
    Hi all. Basically, I'm having trouble removing the horizontal scrollbar in Internet Explorer 7 and Below. I've tried the code below and It seems to work fine in every browser except IE. overflow-x: hidden; The even bigger problem is that, even though the scrollbar isn't even removed, it seems to completely screw the layout.. It somehow hides the majority of the page content in boxes 2 and 3? It also.. adds a second vertical scrollbar which moves relatively/absolute positioned items down?! I did contemplate just leaving the scrollbar in IE via a specified stylesheet, but even that seems to be messing with the page? The website is on a test directory here.. I'll post the stylesheet in a comment below. Any suggestions? Thanks in advance, hope you can help! Bradley

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  • Drawing the UIPicker values from multiple components?

    - by Rob
    I have the UIPicker setup with multiple components and a button below it. Depending on what the user has chosen with the UIPicker determines which new view will be loaded but I am having trouble determining how to extrapolate the information from the picker itself. Right now I have this method being called when the button is pressed: - (IBAction) buttonPressed { if (component:1 == 1 && component:2 == 1) { //Load the view number 1. } else if (component:1 == 2 && component:2 == 1) { //Load the view number 2. } else { //Load the view number 3. } } I obviously know that my code is wrong but I hope it gets the point across. I have multiple components and I need to figure out how to use the information that the user is scrolling to on the picker to determine which view to move to. (I know how to load the views, I just commented those in the code to illuminate the problem areas better.)

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  • CodeIgniter model debugging errors

    - by Jono
    I am new to CodeIgniter, and I need a way to get more meaningful error messages. Specifically I am having trouble with some model relationships, but the error is vague. I am willing to try/install anything since I dont know how to fix this relationship. Is there a way to specify how verbose an error message is? Also, this could be related to DataMapper, but I cant tell. I dont care if they are logged or in the browser. In my browser error reads: An Error Was Encountered Unable to relate X with Y. Any more info would be great... which class, line number, a stacktrace. Increasing the log threshold did not help.

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  • mysql gem for snow leopard

    - by Will
    I had trouble with the gem at first but got it to work when I installed the 64-bit MySQL and reinsatlled the gem with arch flags. So it work in rails. The error I used to get was uninitialized constant MysqlCompat::MysqlRes but that is now gone :) However in Xcode when I run a RubyCocoa project I still get the old error of uninitialized constant MysqlCompat::MysqlRes Does anyone know why this may be? Is it because the gdb is 64-bit? How can it work in Rails but not in RubyCocoa? A little debugging shows that it fails to load mysql_api.bundle /Library/Ruby/Gems/1.8/gems/mysql-2.8.1/lib/mysql_api.bundle: dlopen(/Library/Ruby/Gems/1.8/gems/mysql-2.8.1/lib/mysql_api.bundle, 9): no suitable image found. Did find: (LoadError) /Library/Ruby/Gems/1.8/gems/mysql-2.8.1/lib/mysql_api.bundle: mach-o, but wrong architecture - /Library/Ruby/Gems/1.8/gems/mysql-2.8.1/lib/mysql_api.bundle from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `require'

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  • setaccesscontrol throws Attempted to perform unauthorized operation

    - by Darqer
    I have ws2008 (i think that the same trouble can take place on windows vista), it is joined to the domain. I run following code: DirectorySecurity ds = Directory.GetAccessControl( "c:\\windows\\ADAM" ); ds.AddAccessRule( new FileSystemAccessRule( "domainName\\user", FileSystemRights.Read | FileSystemRights.ListDirectory, AccessControlType.Allow ) ); Directory.SetAccessControl( configurationDirectory, ds ); I'm logged as domain administrator and I get following error: Attempted to perform unauthorized operation. Some User should have access to *exe available in this directory. What can I do to achieve it?

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  • Simplest Way to Process Basic HTTPS GET File Requests?

    - by stormin986
    All I need to do is download some basic text-based and image files from a web server that has a self-signed SSL certificate. I have been trying to figure out how to use HttpClient to do this, but getting the SSL to work is a nightmare that seems to be way too much trouble for such a simple task. Is there a better way to perform these file downloads? Perhaps through a WebView or Browser feature? Reinventing the wheel of making a simple HTTPS GET request is a major pain, and is significantly holding up my development schedule.

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  • Calling and leaving gnuplot prompt and png export

    - by ldigas
    a) I have a data file with, well ... data, and a .gnu file with gnuplot commands. If I call gnuplot like this: gnuplot -p commands_file.gnu I'll get the graph on screen and when I close it, gnuplot will be in it's own prompt (gnuplot_). How can I make it just show the graph, and put me back on cmd prompt after I close it ? b) How to "export" that graph to png or something insertable in Word ? I know there are a dozen tutorials for this on the 'net, but I'm having trouble just finding a simple example.

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  • Getting my ip address

    - by AntonioCS
    Hey! I have a computer on a small network, so my ip is 192.168.2.100. I am trying to get my real ip. I download the no-ip client but that just seems like a lot of trouble for such a simple thing. I created this php script that got http://www.ip-adress.com/ page and retrieved the ip it gave me. Is there a simpler way? Either using C, WSH or something. Or if there is an easier way in php please tell me. When I get the ip I'll uploaded it to my ftp site so that I can see the ip from work.

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  • perl split on empty file

    - by Casey
    I have basically the following perl I'm working with: open I,$coupon_file or die "Error: File $coupon_file will not Open: $! \n"; while (<I>) { $lctr++; chomp; my @line = split/,/; if (!@line) { print E "Error: $coupon_file is empty!\n\n"; $processFile = 0; last; } } I'm having trouble determining what the split/,/ function is returning if an empty file is given to it. The code block if (!@line) is never being executed. If I change that to be if (@line) than the code block is executed. I've read information on the perl split function over at http://perldoc.perl.org/functions/split.html and the discussion here about testing for an empty array but not sure what is going on here. I am new to Perl so am probably missing something straightforward here. Thanks.

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  • iPhone: Infinitely looping content inside UIScrollView

    - by Cuzog
    In my app, I'm designing a custom picker that allows the user to choose an item by scrolling horizontally and touching it. I need the buttons inside that view to loop around infinitely as the user scrolls in a certain direction. What would be the best way to tackle this feature while maintaining the inertial scrolling of UIScrollView when the content loops around out of the view? From my research of others trying to attempt this, they have trouble maintaining the deceleration animation if the scroll position is programatically shifted mid-scroll after the user lifts their finger. How can I work around this limitation? An example of an app that currently has this feature is Apple's MobileMe Gallery app. In the interface, after choosing a gallery, at the top, there is a horizontally scrollable photo picker that loops infinitely as it is dragged one direction. Any advice is greatly appreciated.

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  • Archlinux auto-start after I shutdown my computer

    - by madper
    every one. I'm in a big trouble. My computer (HP ProBook 4230s) has two OS----Archlinux and Win 7. When I use Archlinux, after halt my computer, it will start up after a while without press power. And there is an other thing. My computer's clock will be wrong. Many times I change it in bios, but it wrong again. If I turn off the computer from Win 7, it will never start up untill pressing power bottom. And the clock will be right. I also used ubuntu\debian\mageia, and both of them are fine with my notebook. Is there some configure is wrong with my ArchLinux?

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  • Rails STI: SuperClass Model Methods called from SubClass

    - by Karl
    I would like a little confirmation that I'm doing this correctly. Using rails single table inheritance I have the following models and class method: class PhoneNumber < ActiveRecord::Base def self.qual?(number) klass = self klass.exists?(:phone_number => phone_number) end end class Bubba < PhoneNumber end class Rufus < PhoneNumber end Bubba.qual?("8005551212") Tests pass and everything seems to work properly in rails console. Just wanted to confirm that I'm not headed for future trouble by using self in the superclass PhoneNumber and using that to execute class methods on subclasses from the parent. Is there a better way?

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  • Is there any explorer.exe problem in windows 7 ?

    - by sml
    s += "<p style=\"text-align: left;\"><a href=\"javascript:window.print()\">PRINT</a></p>"; System.IO.File.WriteAllText(@"CheckForm.html", s); System.Diagnostics.ProcessStartInfo startInfo = new System.Diagnostics.ProcessStartInfo(); startInfo.FileName = "explorer.exe"; startInfo.Arguments = "CheckForm.html"; System.Diagnostics.Process.Start(startInfo); I'm having a trouble when I tried to open my c# windows application in windows 7 otherwise there is no problem. I couldn't open explorer.exe in Windows 7 with above code. Any suggestions?

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