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• Vanilla WPF application hangs on one customer's machine

  - by Heinzi

  At a customer, one of our WPF applications started to hang. When trying to reproduce the problem with a minimal working example, I discovered that even the most basic (non-trivial) WPF application will hang on that machine. Example A: Create a new C# WPF project in Visual Studio 2008. Change nothing, compile it and run it on the customer's…

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• UIScrollView notifications

  - by ryyst

  Hi, I'm coding an app that works much like Apple's Weather.app: There's a UIPageControl at the bottom and a UIScrollView in the middle of the screen. In my code, I implemented the - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView method to figure out when the user did move to a new page. If they move to a new page, I load the…

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• Can nginx be used as a reverse proxy for a backend websocket server?

  - by John Reilly

  We're working on a Ruby on Rails app that needs to take advantage of html5 websockets. At the moment, we have two separate "servers" so to speak: our main app running on nginx+passenger, and a separate server using Pratik Naik's Cramp framework (which is running on Thin) to handle the websocket connections. Ideally, when it comes time for…

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• Curve fitting: Find the smoothest function that satisfies a list of constraints.

  - by dreeves

  Consider the set of non-decreasing surjective (onto) functions from (-inf,inf) to [0,1]. (Typical CDFs satisfy this property.) In other words, for any real number x, 0 <= f(x) <= 1. The logistic function is perhaps the most well-known example. We are now given some constraints in the form of a list of x-values and for each x-value,…

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• C# WPF DataBind boolean

  - by jtdangelo

  I have been using this website to learn a lot about C# for a while, but this is my first time posting a question. I look forward to hearing back from some of the seasoned C# veterans! I have been working on a C# 4.0 WPF project and need to figure out how to databind a boolean value. I have a reference to my Application.Current object…

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• How to propagate .java file change to .class under eclipse, tomcat & stripes

  - by BigBourin

  Hi, i'm new to java and i got some problems. i'm developping a web application using the framework stripes on tomcat 6.0. I'm working with eclipse EE on windows. i successfully managed to get the stripes example application (called Bugzooky) up and running on my tomcat server. I imported the .war file and stripes libs in Eclipse. Here…

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• With Apache/mod_wsgi how can I redirect to ssl and require Auth?

  - by justin

  I have a Media Temple DV server hosting dev.example.com with django mounted at /. There is a legacy directory in my httpdocs I need to continue to serve at /legacy. But for this directory I need to redirect anyone coming over http over to https, then prompt for http basic auth. In the virtual host conf, I'm pointing the root to a…

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• Excel Automation From .NET - creating a new worksheet

  - by Andrew Shepherd

  I am attempting what seems like a simple task: using C# to create a new Excel document containing new worksheets. For some reason, I am getting a strange COM error (0x800A03EC) Has anyone managed to get this to work? Does anyone have suggestions as to how to troubleshoot this? I've isolated this into the minimum amount of…

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• Listener error not connecting

  - by Sham

  I have two database running on Port No : 1521. When i m connecting to ORCL db it get's connected, but when i try to connect to another DB it gives me following error. ORA-12514: TNS:listener does not currently know of service requested in connect descriptor. My Listener: # listener.ora Network…

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• CSS Parser - Insert mtimes

  - by brad

  What command line tool can I use to automatically insert mtimes into urls in my css files for the purposes of breaking the cache? /* before */ .example { background: url(example.jpg); } /* after */ .example { background: url(example.jpg?1271298451); } Also, I would like this tool to spit out the latest mtime as…

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• Understanding evaluation of expressions containing '++' and '->' operators in C.

  - by Leif Ericson

  Consider this example: struct { int num; } s, *ps; s.num = 0; ps = &s; ++ps->num; printf("%d", s.num); /* Prints 1 */ It prints 1. So I understand that it is because according to operators precedence, -> is higher than ++, so the value ps->num (which is 0) is firstly fetched and then the ++…

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• GenerateDSYMFile warning: unable to open object file

  - by regulus6633

  The background: I have a project that I last built on 10.5 on a PPC computer using xcode v3.1. It builds against the 10.4 SDK. I now have a MacBook with 10.6 on it and Xcode v3.2.1. I installed the 10.4 SDK with xcode. So now I want to build the project on an intel chip on 10.6. I first get a build error because I…

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• iphone menu navigation with buttons help requested

  - by David

  Hi, I'm trying to program an iphone app that will have several different (sub)apps. Ideally, I want to know how to make the main menu for this app look and behave like the iphone's own app menu, but I can't figure it out. If any one knows a package or library that does this, please let me know. Plan B is to…

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• Active Record two belongs_to calls or single table inheritance

  - by ethyreal

  In linking a sports event to two teams, at first this seemed to make sense: events - id:integer - integer:home_team_id - integer:away_team_id teams - integer:id - string:name However I am troubled by how I would link that up in the active record model: class Event belongs_to :home_team,…

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• How do I lock the workstation from a windows service?

  - by Brad Mathews

  Hello, I need to lock the workstation from a windows service written in VB.Net. I am writing the app on Windows 7 but it needs to work under Vista and XP as well. User32 API LockWorkStation does not work as it requires an interactive desktop and I get return value of 0. I tried calling…

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• Microsoft OLE DB Provider for SQL Server error '80040e14' Could not find stored procedure

  - by BBlake

  I am migrating a classic ASP web app to new servers. The database back end is migrating from SQL Server 2000 to SQL Server 2008, and the app is moving from Win2000 x86 to Win2003R2 x64. I am getting the above error on every single stored procedure call within the application. I have…

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• Redirection fails in IE but is fine with Firefox

  - by Bob

  I use an <Authorize> attribute in ASP.NET MVC to secure a controller. My page loads portions of its content via AJAX. Here's a problem I have with IE8, but not Firefox 3.6: Sign in as user JohnDoe and navigate to http://www.example.com/AjaxPage. Everything works fine. …

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• Redirection fails in IE but is fine with Firefox

  - by Bob

  I use an <Authorize> attribute in ASP.NET MVC to secure a controller. My page loads portions of its content via AJAX. Here's a problem I have with IE8, but not Firefox 3.6: Sign in as user JohnDoe and navigate to http://www.example.com/AjaxPage. Everything works fine. …

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• Python script, runs well, but not perfectly, debugging help.

  - by S1syphus

  What it does (sort of)... or is meant to, the script reads from a csv file that contains information on sound files and create a play list exactly 60 minutes long. An example csv, contains: their title, duration (in seconds), minium total time to be played (in minutes) An…

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• javascript regex: replace url text link with image,but not in html tags

  Hi this is my pice of code: <div style="overflow: hidden; width: 445px;">[IMG]http://i29.tinypic.com/mydog.png[/IMG] tak si to http://i29.tinypic.com/mycat.png Lorem ipsum loremai <img width="15" border="0" align="middle"…

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• Is this a tableView issue or a CoreData Issue

  - by monotreme

  I have a CoreData-driven navigation app and I'm trying to figure out why It's crashing. I've got a hierarchy which is 3 view Controllers deep, all related by coredata relatioships, like this. TableViewA =relationship= TableViewB =relationship= TableViewC …

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• Java 7u4 webstart security exception: Class does not match trust level

  - by Glstunna

  We began to notice that with Java 7 (particularly with update 4), that all our users began to see this with our Webstart app: [14:42:58,422] AWT-EventQueue-0(DEBUG) java.lang.SecurityException: class "CLASSNAME" does not match trust level of other classes…

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• Suppress indentation after environment in LaTeX

  - by David

  I'm trying to create a new environment in my LaTeX document where indentation in the next paragraph following the environment is suppressed. I have been told (TeXbook and LaTeX source) that by setting \everypar to {\setbox0\lastbox}, the TeX typesetter…

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• Graph-structured databases and Php

  - by stagas

  I want to use a graph database using php. Can you point out some resources on where to get started? Is there any example code / tutorial out there? Or are there any other methods of storing data that relate to each other in totally random/abstract…

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• How do I add IIS Virtual Directories and arbitrary files in TFS Solution

  - by chriscena

  We have a web portal product from which we customize portals from customers. We use the precompiled web app and create a virtual directory (vd) where the customization resides. In addition to this we do some changes web.config in the web app…

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