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  • return the variable used for using inside the using C#

    - by di3go
    Hello, I am returning the variable I am creating in a using statement inside the using statement (sounds funny): public DataTable foo () { using (DataTable properties = new DataTable()) { // do something return properties; } } Will this Dispose the properties variable?? After doing this am still getting this Warning: Warning 34 CA2000 : Microsoft.Reliability : In method 'test.test', call System.IDisposable.Dispose on object 'properties' before all references to it are out of scope. Any Ideas? Thanks

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  • OpenGL ES functions not accepting values originating outside of it's view

    - by Josh Elsasser
    I've been unable to figure this out on my own. I currently have an Open GLES setup where a view controller both updates a game world (with a dt), fetches the data I need to render, passes it off to an EAGLView through two structures (built of Apple's ES1Renderer), and draws the scene. Whenever a value originates outside of the Open GL view, it can't be used to either translate objects using glTranslatef, or set up the scene using glOrthof. If I assign a new value to something, it will work - even if it is the exact same number. The two structures I have each contain a variety of floating-point numbers and booleans, along with two arrays. I can log the values from within my renderer - they make it there - but I receive errors from OpenGL if I try to do anything with them. No crashes result, but the glOrthof call doesn't work if I don't set the camera values to anything different. Code used to set up scene: [EAGLContext setCurrentContext:context]; glBindFramebufferOES(GL_FRAMEBUFFER_OES, viewFramebuffer); //clears the color buffer bit glClear(GL_COLOR_BUFFER_BIT); glMatrixMode(GL_PROJECTION); //sets up the scene w/ ortho projection glViewport(0, 0, 320, 480); glLoadIdentity(); glOrthof(320, 0, dynamicData.cam_x2, dynamicData.cam_x1, 1.0, -1.0); glClearColor(1.0, 1.0, 1.0, 1.0); /*error checking code here*/ "dynamicData" (which is replaced every frame) is created within my game simulation. From within my controller, I call a method (w/in my simulation) that returns it, and pass the result on to the EAGLView, which passes it on to the renderer. I haven't been able to come up with a better solution for this - suggestions in this regard would be greatly appreciated as well. Also, this function doesn't work as well (values originate in the same place): glTranslatef(dynamicData.ship_x, dynamicData.ship_y, 0.0); Thanks in advance. Additional Definitions: Structure (declared in a separate header): typedef struct { float ship_x, ship_y; float cam_x1, cam_x2; } dynamicRenderData; Render data getter (and builder) (every frame) - (dynamicData)getDynRenderData { //d_rd is an ivar, zeroed on initialization d_rd.ship_x = mainShip.position.x; d_rd.ship_y = mainShip.position.y; d_rd.cam_x1 = d_rd.ship_x - 30.0f; d_rd.cam_x2 = d_rd.cam_x1 + 480.0f; return d_rd; } Zeroed at start. (d_rd.ship_x = 0;, etc…) Setting up the view. Prototype (GLView): - (void)draw: (dynamicRenderData)dynamicData Prototype (Renderer): - (void)drawView: (dynamicRenderData)dynamicData How it's called w/in the controller: //controller [glview draw: [world getDynRenderData]]; //glview (within draw) [renderer drawView: dynamicData];

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  • ActiveX Control with included Form

    - by cru3l
    I'm try develop an ActiveX Control in VB6. It have one UserControl and one form. And the problem that i can't call usercontrol function's (even public) from this form. I can't type something like UserControl.DoSomething 'not working It work's only if create copy of usercontrol (UserControl1, for example). But in resulting i need one ocx file (component). So i can't create another form with copy of usercontrol in project

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  • SwapBuffers causes redraw

    - by user146780
    I'm making a Win32 application with OpenGL in the main window (not using GLUT). I have my drawing code in WM_PAINT right now when I call swapBuffers it must be invalidating itself because it is constantly rerendering and using lots of cpu resources. How can I make it only render when it honestly receives WM_PAINT like when using GDI? Thanks

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  • SQL Compact - Hang on invalid file

    - by eWolf
    I use Linq to Sql Compact with code generated by sqlmetal. When I open an invalid database, like eg an mp3, I can create the DataContext without getting an Exception. But when I query any data or call DatabaseExists, the application hangs. Why is no exception thrown? Is this a known problem?

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  • SWT Global Menu bar items listener

    - by vigilant
    Is it possible to attach a listener to all MenuItems in a Menu bar after creating the entire menu bar? Otherwise I need to call addListener on each MenuItem individually, which is a pain with hundreds of menu items (don't ask why). With a listener attached to each MenuItem, I would then be able to demultiplex using the text string of the MenuItem.

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  • jquery masonry on ul with nested ul

    - by Adam Wright
    I'm trying to create a footer nav of a sitemap with levels nested within each other. i want to use masonry so the padding and margin is consistant and not changed depending on nested items. its firing masonry but its adding the relative style to the nested ul if i change the masonry call to select just the first() ul then nested li appear on one line. any ideas? <div id="links"> <ul ><li class="box"><a href="/Industries.aspx" >Industries</a></li><li class="box"><a href="/Services.aspx" >Services</a></li><li class="box"><a href="/Quality---Regulatory.aspx" >Quality &amp; Regulatory</a></li><li class="box"><a href="/About.aspx" >About</a><ul ><li class="box"><a href="/About/Our-Story.aspx" >Our Story</a></li><li class="box"><a href="/About/Our-Mission.aspx" >Our Mission</a></li><li class="box"><a href="/About/Our-Core-Values.aspx" >Our Core Values</a></li></ul></li><li class="box"><a href="/News.aspx" >News</a><ul ><li class="box"><a href="/News/Events.aspx" >Events</a></li></ul></li><li class="box"><a href="/Careers.aspx" >Careers</a></li><li class="box"><a href="/Contact.aspx" >Contact</a></li><li class="box"><a href="/tests.aspx" >tests</a></li></ul> </div> <script type="text/javascript"> $('#links ul').masonry({ singleMode: true, // Disables measuring the width of each floated element. // Set to true if floated elements have the same width. // default: false columnWidth: 182, // Width in pixels of 1 column of your grid. // default: outer width of the first floated element. itemSelector: '.box:visible', // Additional selector to specify which elements inside // the wrapping element will be rearranged. // Required for Infinite Scroll with window resizing. resizeable: true, // Binds a Masonry call to window resizes // so layout appears fluid. // default: true animate: false, // Animates layout rearrangements. // default: false saveOptions: true // Masonry will use the options from previous Masonry // calls by default, so you only have to enter in options once // default: true }); </script>

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  • Java Web Application on Tomcat - Displaying a File Uploaded by User

    - by walnutmon
    I need to display uploaded files on a web application, the flow is as follows User uploads file through web UI Validation on image Makes call to imageRepository.store( uploadedImage, user.getSite() ) The user wants the image displayed which adds <img src="${anUploadedImage.getUrl()}"/> but that is where I'm stuck, what can getUrl() do? The simple solution is to put it someplace and let Apache serve the file, but then I can't use the application to ensure that one user isn't modifying the URL to view other users files, which in this case is important

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  • python class decorator question?

    - by nsharish
    decorator 1: def dec(f): def wrap(obj, *args, **kwargs): f(obj, *args,**kwargs) return wrap decorator 2: class dec: def __init__(self, f): self.f = f def __call__(self, obj, *args, **kwargs): self.f(obj, *args, **kwargs) A sample class, class Test: @dec def disp(self, *args, **kwargs): print(*args,**kwargs) The follwing code works with decorator 1 but not with decorator 2. a = Test() a.disp("Message") I dont understand why decorator 2 is not working here. Can someone help me with this?

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  • Share ASP.Net membership info between two applications

    - by bill
    Hi All, I have an existing webapp and i'm attempting to setup BlogEngine .Net to share the membership tables Everything seems to work.. accept i can see that the Membership.ValidateUser call in blogengine returns false! While the other apps returns true. I'm at a loss.. Membership.GetUser called from both apps returns the correct user.. Any ideas? thanks!

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  • Python evaluation order

    - by d.m
    Here's the code, I don't quite understand, how does it work. Could anyone tell, is that an expected behavior? $ipython In [1]: 1 in [1] == True Out[1]: False In [2]: (1 in [1]) == True Out[2]: True In [3]: 1 in ([1] == True) --------------------------------------------------------------------------- TypeError Traceback (most recent call last) /home/dmedvinsky/projects/condo/condo/<ipython console> in <module>() TypeError: argument of type 'bool' is not iterable In [4]: from sys import version_info In [5]: version_info Out[5]: (2, 6, 4, 'final', 0)

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  • php class extend - run something before running parent function

    - by Patrick
    Hi, say I have this class: class animal { function noise() { print 'woof'; } function move() { print 'moved'; } } class dog extends animal { } What I would like to do is when i run $dog-noise() or $dog-move(), it would run something first prior to calling animal class's noise/move. Is this doable? Like maybe logging the function call. If not with class extend, what else can I use to achieve this? Thank you!

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  • How does the event dispatch thread work?

    - by Roman
    With the help of people on stackoverflow I was able to get the following working code of the simples GUI countdown (it just displays a window counting down seconds). My main problem with this code is the invokeLater stuff. As far as I understand the invokeLater send a task to the event dispatching thread (EDT) and then the EDT execute this task whenever it "can" (whatever it means). Is it right? To my understanding the code works like that: In the main method we use invokeLater to show the window (showGUI method). In other words, the code displaying the window will be executed in the EDT. In the main method we also start the counter and the counter (by construction) is executed in another thread (so it is not in the event dispatching thread). Right? The counter is executed in a separate thread and periodically it calls updateGUI. The updateGUI is supposed to update GUI. And GUI is working in the EDT. So, updateGUI should also be executed in the EDT. It is why the code for the updateGUI is inclosed in the invokeLater. Is it right? What is not clear to me is why we call the counter from the EDT. Anyway it is not executed in the EDT. It starts immediately a new thread and the counter is executed there. So, why we cannot call the counter in the main method after the invokeLater block? import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.SwingUtilities; public class CountdownNew { static JLabel label; // Method which defines the appearance of the window. public static void showGUI() { JFrame frame = new JFrame("Simple Countdown"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); label = new JLabel("Some Text"); frame.add(label); frame.pack(); frame.setVisible(true); } // Define a new thread in which the countdown is counting down. public static Thread counter = new Thread() { public void run() { for (int i=10; i>0; i=i-1) { updateGUI(i,label); try {Thread.sleep(1000);} catch(InterruptedException e) {}; } } }; // A method which updates GUI (sets a new value of JLabel). private static void updateGUI(final int i, final JLabel label) { SwingUtilities.invokeLater( new Runnable() { public void run() { label.setText("You have " + i + " seconds."); } } ); } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { public void run() { showGUI(); counter.start(); } }); } }

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  • how to implement ws-security 1.1 in php5

    - by Sam Segers
    I'm trying to call a webservice with Soap in PHP5, for this, I need to use WS-Security 1.1. (In java and .NET this is all generated automatically.) Are there any frameworks available to generate the security headers easily in PHP? Or do I have to add the entire header myself ? Specifications of WS-Security 1.1: http://oasis-open.org/committees/download.php/16790/wss-1.1-spec-os-SOAPMessageSecurity.pdf

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  • How to show why "try" failed in python

    - by calccrypto
    is there anyway to show why a "try" failed, and skipped to "except", without writing out all the possible errors by hand, and without ending the program? example: try: 1/0 except: someway to show "Traceback (most recent call last): File "<pyshell#0>", line 1, in <module> 1/0 ZeroDivisionError: integer division or modulo by zero" i dont want to doif:print error 1, elif: print error 2, elif: etc.... i want to see the error that would be shown had try not been there

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  • Does the <script> tag position in HTML affects performance of the webpage?

    - by Rahul Joshi
    If the script tag is above or below the body in a HTML page, does it matter for the performance of a website? And what if used in between like this: <body> ..blah..blah.. <script language="JavaScript" src="JS_File_100_KiloBytes"> function f1() { .. some logic reqd. for manipulating contents in a webpage } </script> ... some text here too ... </body> Or is this better?: <script language="JavaScript" src="JS_File_100_KiloBytes"> function f1() { .. some logic reqd. for manipulating contents in a webpage } </script> <body> ..blah..blah.. ..call above functions on some events like onclick,onfocus,etc.. </body> Or this one?: <body> ..blah..blah.. ..call above functions on some events like onclick,onfocus,etc.. <script language="JavaScript" src="JS_File_100_KiloBytes"> function f1() { .. some logic reqd. for manipulating contents in a webpage } </script> </body> Need not tell everything is again in the <html> tag!! How does it affect performance of webpage while loading? Does it really? Which one is the best, either out of these 3 or some other which you know? And one more thing, I googled a bit on this, from which I went here: Best Practices for Speeding Up Your Web Site and it suggests put scripts at the bottom, but traditionally many people put it in <head> tag which is above the <body> tag. I know it's NOT a rule but many prefer it that way. If you don't believe it, just view source of this page! And tell me what's the better style for best performance.

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  • Ruby Mechanize - Basic Get Failing

    - by hutch
    a = WWW::Mechanize.new { |agent| agent.user_agent_alias = 'Mac Safari' agent.history.max_size=0 } page = a.get('http://livingsocial.com/deals?preferred_city=18') Trying a very basic GET request using mechanize but get a 500, yet when I CURL I have no problems. Is there a problem with including parameters in a get() call? I know I am missing something simple

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  • maya2008 win32api 64 bit python

    - by knishua
    how is it possible to run import win32api successfully on a 64bit maya version 2008 following error occurs Error: No module named win32api Traceback (most recent call last): File "", line 1, in ImportError: No module named win32api # I need to get mouse cursor position in python so that i can place window exactly in that position. Is there any other way to get it Brgds, kNish

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  • Are functions declared before or after calling them?

    - by DMan
    I've made this a community wiki... Okay, I was looking through someone's code one day and I was annoyed how they declared all their functions first and then later called them below. I guess I'm use to Visual Studio's automatically generated functions, that are made after you call them- and I was wondering, which way do you prefer? Or is there a standard on these kind of things?

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  • Use OpenOffice to do server-side ppt(x) to swf conversion

    - by Steven Xu
    I'd like to turn Powerpoint presentations to SWF files the same way that OpenOffice does it, except automatically through a command line call. I came across http://stackoverflow.com/questions/886144, which led me to explore PyUNO bridge, which comes with OpenOffice as well as the OpenOffice command line API, but I wasn't able to make anything productive of it. Any guidance is appreciated. If there is a good solution outside of OpenOffice, I would be happy to try it too.

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  • WF State Persistence Collision.

    - by jlafay
    How does WF service handle possible between WF runtime persisting/resuming and a client call calling the next service method/activity in the workflow? I'm new to WF and I'm developing a back-end service that will be put into production for internal use at work. How does WF handles such a scenario? Does it restart the WF runtime on a separate thread than the thread that is concurrently storing state?

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  • Difference between Python urllib.urlretrieve() and wget

    - by jrdioko
    I am trying to retrieve a 500mb file using Python, and I have a script which uses urllib.urlretrieve(). There seems to some network problem between me and the download site, as this call consistently hangs and fails to complete. However, using wget to retrieve the file tends to work without problems. What is the difference between urlretrieve() and wget that could cause this difference?

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  • Spring, iBatis, MySQL - how to manage transactions?

    - by Enrique
    Hello I'm building a web application with spring ibatis and mysql. I'm going to use mysql stored procedures and I will call them with ibatis. My question is about how to manage the transactions. Should I manage the transactions inside the stored procedures or with spring/ibatis or with both?

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