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• Facebook Fanpage Wallposting from C# App

  - by brinthhillerup

  Hello Guys I have the following challenge at hand: I have a fanpage for a apartment renting company. They would like to autoupdate their fanpage everytime a new apartment is added to the system. The system is developed in C# ASP.NET 3.5. I have downloaded the Facebook C# API From codeplex. Have anyone done this, or know how to do it? UPDATE: So far I have tried the following: FacebookSession session = new Facebook.Session.ConnectSession(myKey,mySecretKey); Stream stream = new Stream(session); stream.Publish("Testing", null, null, null, 107010519323711); I get a null reference Exception when I call Stream.Publish

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• simple jsf application in myeclipse using jBoss

  - by chetan

  I want to run simple application of jsf but after configuring jBoss in my application I got the following error. 14:58:38,328 ERROR [[/web3demo]] Exception sending context initialized event to listener instance of class org.jboss.web.jsf.integration.config.JBossJSFConfigureListener com.sun.faces.config.ConfigurationException: CONFIGURATION FAILED! Source Document: jndi:/localhost/web3demo/WEB-INF/faces-config.xml Cause: Class 'com.icesoft.faces.facelets.D2DFaceletViewHandler' is missing a runtime dependency: java.lang.NoClassDefFoundError: com/sun/facelets/impl/ResourceResolver DEPLOYMENTS IN ERROR: Deployment "vfsfile:/E:/ctn%20sodtware/jboss-5.0.1.GA/server/default/deploy/2832010.war/" is in error due to the following reason(s): org.xml.sax.SAXException: cvc-datatype-valid.1.2.1: '2832010' is not a valid value for 'NCName'. @ vfsfile:/E:/ctn%20sodtware/jboss-5.0.1.GA/server/default/deploy/2832010.war/WEB-INF/web.xml[5,16] Deployment "vfsfile:/E:/ctn%20sodtware/jboss-5.0.1.GA/server/default/deploy/web3demo.war/" is in error due to the following reason(s): org.jboss.deployers.spi.DeploymentException: URL file:/E:/ctn sodtware/jboss-5.0.1.GA/server/default/deploy/web3demo.war/ deployment failed This is simple application where I simply run default index file without creating any other jsf file.

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• internet explorer ashx file problem

  - by vondip

  My problem is a bit complicated: I am writing in c#, asp.net and using jquery I have a page that sends requests to the server using jquery's ajax method. I have a ashx file (handler) to respond to these request. User can perform several changes on several pages, then use some method that will call the ajax method. My ashx file reads some values From the session variables and acts accordingly. This works fine in all browsers but in internet explorer. In internet explorer the session seems to hold old information (old user ids'). It's incredible, the same code works fine in firefox, chrome and safari but fails with ie. What could be causing it? I have no clue where to even start looking for a solution. btw, Sorry for the general title, couldn't figure out how to explain in just few words. Thank You!

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• "Collection was modified..." Issue

  - by Tyler Murry

  Hey guys, I've got a function that checks a list of objects to see if they've been clicked and fires the OnClick events accordingly. I believe the function is working correctly, however I'm having an issue: When I hook onto one of the OnClick events and remove and insert the element into a different position in the list (typical functionality for this program), I get the "Collection was modified..." error. I believe I understand what is going on: The function cycles through each object firing OnClick events where necessary An event is fired and the object changes places in the list per the hooked function An exception is thrown for modifying the collection while iterating through it My question is, how to do I allow the function to iterate through all the objects, fire the necessary events at the proper time and still give the user the option of manipulating the object's position in the list? Thanks, Tyler

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• junit4 functions

  - by lamisse

  how to create generic functions that could be called from each java test? In my function startappli I have : public class startappli{ public void testMain (String[] args) { String[] logInfos = new String[3]; logInfos[0] = (String) args[0]; logInfos[1] = (String) args[1]; } @BeforeClass public static void setupOnce() { final Thread thread = new Thread() { public void run() { entrypointtoGUI.main(new String[]{"arg0 ", "arg1"}); } }; try { thread.start(); } catch (Exception ex) { } } } in the toto.java , I call the function as follow : startappli.testmain(loginfo) it doesn't work help ?

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• Can I remove items from a ConcurrentDictionary from within an enumeration loop of that dictionary?

  - by the-locster

  So for example: ConcurrentDictionary<string,Payload> itemCache = GetItems(); foreach(KeyValuePair<string,Payload> kvPair in itemCache) { if(TestItemExpiry(kvPair.Value)) { // Remove expired item. Payload removedItem; itemCache.TryRemove(kvPair.Key, out removedItem); } } Obviously with an ordinary Dictionary this will throw an exception because removing items changes the dictionary's internal state during the life of the enumeration. It's my understanding that this is not the case for a ConcurrentDictionary as the provided IEnumerable handles internal state changing. Am I understanding this right? Is there a better pattern to use?

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• How to implement a Digg-like algorithm?

  - by Niklas

  Hi, How to implement a website with a recommendation system similar to stackoverflow/digg/reddit? I.e., users submit content and the website needs to calculate some sort of "hotness" according to how popular the item is. The flow is as follows: Users submit content Other users view and vote on the content (assume 90% of the users only views content and 10% actively votes up or down on content) New content is continuously submitted How do I implement an algorithm that calculates the "hotness" of a submitted item, preferably in real-time? Are there any best-practices or design patterns? I would assume that the algorithm takes the following into consideration: When an item was submitted When each vote was cast When the item was viewed E.g. an item that gets a constant trickle of votes would stay somewhat "hot" constantly while an item that receives a burst of votes when it is first submitted will jump to the top of the "hotness"-list but then fall down as the votes stop coming in. (I am using a MySQL+PHP but I am interested in general design patterns).

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• Cannot add library in VC++ 2008: My System is Different

  - by jfm429

  Hopefully someone can tell me what's going on here. I'm trying to link to gdiplus.lib and I tried to go to "Properties - Linker - Input - Additional Dependencies" to add the library but I do NOT have that section. I'm using Visual C++ 2008. Here's what I see: Common Properties Framework and References Configuration Properties General Degugging C/C++ Librarian Resources XML Document Generator Browse Information Build Events Custom Build Step I've checked every subcategory and there is NOT a "Linker" section or an "Input" section. Once again, this is Visual C++ 2008 without any customizations or strange settings. I have a screenshot at http://drp.ly/13ma9l if anybody's interested. How come my Property panel is completely different than everyone else's? Typical Microsoft crap I suppose...

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• Quaddratic Bezier Curve: Calculate Tangent

  - by stefan.at.wpf

  Hello, I have have a quadratic bezier curve and I want to calculate the slope of the tangent in a given point. For example, let it be the middlepoint of the quadratic bezier curve, therefore t=0.5 (please see the link below for a picture of this). I've calculated the first derivation of the formula for the quadratic bezier curve, however I get 400 as value for the slope, though it should be 0. Maybe I'm using the first derivation in a wrong way? I know I could also calculate the tangents using trigonometric functions, however I'd like to do it using the first derivation, shouldn't this be possible? Thanks for any hint! For clarification / please note: I'm interested in a general way to get the slope in a arbitrary given point on a quadratic bezier curve, not only to get the tangent in the start- and end point. A picture of my problem including the text above: http://cid-0432ee4cfe9c26a0.skydrive.live.com/self.aspx/%c3%96ffentlich/Quadratic%20Bezier%20Curve.pdf Thank you very much for any hint!

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• Data structure for Settlers of Catan map?

  - by templatetypedef

  Hello all- A while back someone asked me if I knew of a nice way to encode the information for the game Settlers of Catan. This would require storing a hexagonal grid in a way where each hex can have data associated with it. More importantly, though, I would need some way of efficiently looking up vertices and edges on the sides of these hexagons, since that's where all the action is. My question is this: is there a good, simple data structure for storing a hexagonal grid while allowing for fast lookup of hexagons, edges between hexagons, and vertices at the intersections of hexagons? I know that general structures like a winged-edge or quad-edge could do this, but that seems like massive overkill. Thanks!

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• WPF NotifyIcon Help C#

  - by Sandeep Bansal

  Hi everyone. I'm having trouble with a NotifyIcon in WPF I currently have the following: notifyI = new NotifyIcon(); notifyI.Icon = new Icon("Power.ico"); notifyI.Text = "Shutdown Timer"; notifyI.Visible = true; notifyI.MouseDoubleClick += new System.Windows.Forms.MouseEventHandler(notifyI_MouseDoubleClick); The thing is the notifyI.Icon = new Icon("Power.ico") is keep throwing and exception. I can't seem to find a way to use the icon file I have in the resources, can anyone help. Thanks, I am using VS2010 and Blend 3.

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• Does the CLR store small values in 'natural' sized locations?

  - by izb

  In Java, a byte or short is stored in the JVM's 'natural' word length, i.e. for the most part, 32-bits. An exception would be an array of bytes, where each byte occupies a byte of memory. Does the CLR do the same thing? If it does do this, in what situations are there exceptions to this? E.g. How much memory does this occupy? struct MyStruct { short s1; short s2; }

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• Storing and comparing biometric information

  - by Chathuranga Chandrasekara

  I am not sure whether this is the best place to post this. But this is strongly related with programming so decided to put this here. In general we use biometrics in computer applications say for authentication. Lets get 2 examples finger prints and facial recognition. In those cases how we keep the information for comparison. As an example we can't keep a image and process it every time. So what are the methodologies we use to store/determine the similarity in such cases? Are there any special algorithms that designed for that purposes.? (Ex : To return a approximately equal value for a finger print of a certain person every time)

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• Bullet Physics, when to choose which DynamicsWorld?

  - by Sqeaky

  I have a few general questions about the bullet physics library. Here is my current understanding in a nutshell: btDiscreteDynamicsWorld - Simplest physics world, only handles rigid bodies, maybe it has better performance. btSoftRigidDynamicsWorld - The only physics world that can work with large jello moulds btContinuousDynamicsWorld - If you have really fast objects this will prevent them from prenetrating each other or flying through each other, but is otherwise like a btDiscreteDynamicsWorld. Is my understanding of the btDiscreetDynamicsWorld, btContinuousDynamicsWorld and btSoftRigidDynamicsWorld classes in terms of functionality, purpose, and performance correct? Why does the user manual recommend the btDiscreteDynamicsWorld class? btSoftRigidDynamicsWorld appears to be the only world that can handle soft bodies, so what if we wanted Continuous Physics integration and Soft bodies? How fast is fast enough to consider using a btContinuousDynamicsWorld, and what are the drawbacks of using one? Edit: My Buddy Mako also posted this question on The Bullet forums: http://www.bulletphysics.org/Bullet/phpBB3/viewtopic.php?f=9&t=4863

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• Could not load file or assembly log4net or one of its dependencies

  - by Elie

  I've been asked to take a look at an error in an ASP/C# application with its Paypal integration. The error, shown in full, is: Could not load file or assembly 'log4net, Version=1.2.0.30714, Culture=neutral, PublicKeyToken=b32731d11ce58905' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) From what I understand, this means that the actual file located (that is, log4net.dll in my bin directory) does not match the version expected based on some assembly configuration. The problem I'm having is that I cannot locate where this file is being referenced. I have access to all the files in the web root directory of the site, and cannot locate any config files that reference this DLL. Where else might I need to look to determine what's causing the mis-match? As a note, I've made sure that the version of the DLL in the bin directory is up to date, but this does not seem to have resolved anything.

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• SQlite: Column format for unix timestamp; Integer types

  - by SF.

  Original problem: What is the right column format for a unix timestamp? The net is full of confusion: some posts claim SQLite has no unsigned types - either whatsoever, or with exception of the 64bit int type (but there are (counter-)examples that invoke UNSIGNED INTEGER). The data types page mentions it only in a bigint example. It also claims there is a 6-byte integer but doesn't give a name for it. Of course standard INTEGER being 4-byte signed signed stores unix timestamps as negative numbers. I've heard that some systems return 64-bit timestamps too. OTOH I'm not too fond of wasting 4 bytes to store 1 extra bit (top bit of timestamp), and even if I have to pick a bigger data format, I'd rather go for the 6-byte one. I've even seen a post that claims SQLite unix timestamp is of type REAL... Complete problem: Could someone please clarify that mess?

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• System.Diagnostics.Process - Del Command

  - by wonea

  I'm trying to start the del command using System.Diagnostic.Process. Basically I want to delete everything from the C:\ drive that has the filename of *.bat System.Diagnostics.Process proc = new System.Diagnostics.Process(); string args = string.Empty; args += "*.bat"; proc.StartInfo.FileName = "del"; proc.StartInfo.WorkingDirectory = "C:\"; proc.StartInfo.Arguments = args.TrimEnd(); proc.Start(); However when code is ran an exception is thrown, "the system cannot find specified file." I know there definitely is files in that root folder containing that file extension.

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• OpenCV's cvKMeans2 - chosing clusters

  - by Goffrey

  Hi, I'm using cvKMeans2 for clustering, but I'm not sure, how it works in general - the part of choosing clusters. I thought that it set the first positions of clusters from given samples. So it means that in the end of clustering process would every cluster has at least one sample - in the output array of cluster labels will be full range of numbers (for 100 clusters - numbers 0 to 99). But as I checked output labels, I realised that some labels weren't used at all and only some were used. So, does anyone know, how it works? Or how should I use the parameters of cvKMeans2 to do what I want (cause I'm not sure if I use them right)? I'm using cvKMeans2 function also with optional parameters: cvKMeans2(descriptorMat, N_CLUSTERS, clusterLabels, cvTermCriteria( CV_TERMCRIT_EPS+CV_TERMCRIT_ITER, 10, 1.0), 1, 0, 0, clusterCenters, 0) Thanks for any advices!

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• Web Service to connect to an API and get the response back from the API

  - by Scarlette_June

  This is a general Programming question I'm new to Java Web services programming using Apache Axis and JAX-RPC. We need to build 2 components,a App engine (Shopping cart, Payment Gateway integration etc..) and a UI Control Panel over an existing API. The API understands only XML.How we must communicate with the API? link text We have been asked to write a Web Service to establish the communication. Please provide the steps and a Code example/snippet on how to connect to an existing API through a Webservice and get the response back from the API to the calling Webservice. John,I hope I have been able to explain my query.If you have ideas on how to communicate with the API to get the desired result to the user,Please let us know. We have just started our careers in technology a year back post our graduation and this project is our very first Java EE project.

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• how to get data from HTMLDataTable in jsf?

  - by Guru

  <h:dataTable width="100%" border="1" cellspacing="0" cellpadding="2" style="border-collapse:collapse;display:block" styleClass="Header" value="#{adminBean.displayResults}" var="aResult" binding="#{adminBean.browseResultsHTMLDataTable}"> This is what i am trying to do. I have a dynamic list of data, which i try to display in the HTML Table format using h:dataTable (the bounded value is an arrayList). The table has got a radio button for each row it displays (boolean w/ h:selectOneRadio ) now when i select the radio button in one of these rows, i want to get the values of the row that is selected for which i try to use binding attribute. But i get Row Unavailable exception - is my approach wrong? any suggestions?

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• How to extend the Smarty class right

  - by Evolutio

  I have a Problem with Smarty. I have made this class: <?php require_once(INCLUDE_PATH.'smarty/Smarty.class.php'); class IndexPage extends Smarty { public $templateName = 'index.tpl'; public function __construct() { parent::__construct(); $this->showTemplate(); } public function showTemplate() { self::display('index.tpl'); } } ?> But why it doesn't works? Here is the Error: Fatal error: Uncaught exception 'SmartyException' with message 'Unable to load template file 'index.tpl'' in D:\xampp\htdocs\aiondb\lib\smarty\sysplugins\smarty_internal_templatebase.php:127 Stack trace: #0 D:\xampp\htdocs\aiondb\lib\smarty\sysplugins\smarty_internal_templatebase.php(374): Smarty_Internal_TemplateBase->fetch('index.tpl', NULL, NULL, NULL, true) #1 D:\xampp\htdocs\aiondb\lib\classes\IndexPage.class.php(14): Smarty_Internal_TemplateBase->display('index.tpl') #2 D:\xampp\htdocs\aiondb\lib\classes\IndexPage.class.php(10): IndexPage->showTemplate() #3 D:\xampp\htdocs\aiondb\index.php(3): IndexPage->__construct() #4 {main} thrown in D:\xampp\htdocs\aiondb\lib\smarty\sysplugins\smarty_internal_templatebase.php on line 127

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• Tutorials for .NET database app using SQLite

  - by ChrisC

  I have some MS Access experience, and had a class on console c++ apps, now I am trying to develop my first program. It's a little C# db app. I have the db tables and columns planned and keyed into VS, but that's where I'm stuck. I'm needing C#/VS tutorials that will guide me on configuring relationships, datatyping, etc, on the db so I can get it ready for testing of the schema. The only tutorials I've been able to find either talk about general db basics (ie, not helping me with VS/C#), or about C# communications with an existing SQL db. Thank you. (In case it matters, I'm using the open source System.Data.SQLite (sqlite.phxsoftware.com) for the db. I chose it over SQL Server CE after seeing a comparison between the two. Also I wanted a server-less version of SQL because this little app will be on other people's computers and I want to to do as little support as possible.)

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• Breaking changes in .NET 4.0

  - by Andrei Taptunov

  There is a lot of information about new features and classes in new 4.0 however there are also changes that may affect esixting applications, for example Timespan now implements IFormattable and old string.Format() with invalid options will throw exception instead of calling simple ToString(). However, CLR team provides a nice feature to enable behaviour from previous version with configuration setting - TimeSpan_LegacyFormatMode . CLR Inside Out Access to events inside the class where they are declared using += or -= will lead to call add/remove generated accessors that return void. Some code wan't even compile in 4.0. Chris Burrows Blog CAS is deprecated and to enable it one still need to use special setting in configuration - NetFx40_LegacySecurityPolicy So I wonder what are other changes and is it possible to find at least preliminary list of changes that will or may break existing functionality with release of .NET 4.0 ?

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• System.OutOfMemoryException on file download

  - by frosty

  I have an ashx handler with the following code. The idea is to hide the path of the file and prompt a download context.Response.Clear(); context.Response.AddHeader("Content-Disposition", "attachment; filename=" + fileName); context.Response.AddHeader("Content-Length", file.Length.ToString()); context.Response.ContentType = "application/octet-stream"; context.Response.WriteFile(file.FullName); This works fine for some files however on others i get Exception of type 'System.OutOfMemoryException' was thrown.

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• iPhone SDK Push Notification

  - by Craig

  I have setup push notifications in the apple developer panel and added the code to my application. It works fine on the phone using a development profile but if I use a distribution (ad-hoc) profile so that I can give it to a few users for testing it gives an error and crashes, the log gives the following error Code: Thu Jun 25 22:22:35 unknown SpringBoard[729] <Warning>: *** Assertion failure in -[SBRemoteNotificationServer registerApplication:forEnvironment:withTypes:], /SourceCache/SpringBoard/SpringBoard-919.5/SBRemoteNotificationServer.m:633 Thu Jun 25 22:22:35 unknown SpringBoard[729] <Error>: *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'no connection found for environment production' I am using the following code in the app Code: [[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound)]; The thing I don't understand is why it works perfectly using a development profile but with ad-hoc it crashes. Does anyone know what would cause this?, I've tried changing lots of things to try and find the issue but have found nothing.

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