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• How do I do a postback to a CGI service

  - by TheLearner

  I am building a C# client for a CGI service (not sure what its called exactly). It accepts a bunch of XML and spits out a response. I have tested it straight in Firefox and it works (see below). Now I am not sure how to do this in C# code though? Does anyone have a helpful snippet of code, I can't imagine it would be that difficult? http://www.travelcommunications.co.uk/cgi-bin/d3web_gzip.ssh?%3CTCOML%20version=%22NEWFORMAT%22%3E%3CTransferOnly%3E%3CAvailability%3E%3CRequest%3E%3CAgentCode%3ETEST%3C/AgentCode%3E%3CAgentType%3ETA%3C/AgentType%3E%3CDeparturePointCode%3EALC%3C/DeparturePointCode%3E%3CDeparturePointType%3EAIRPORT%3C/DeparturePointType%3E%3CArrivalPointCode%3EBEN%3C/ArrivalPointCode%3E%3CArrivalPointType%3ERESORT%3C/ArrivalPointType%3E%3CSectorType%3ERETURN%3C/SectorType%3E%3CArrDate%3E10.10.10%3C/ArrDate%3E%3CArrTime%3E10:00%3C/ArrTime%3E%3CRetDate%3E17.10.10%3C/RetDate%3E%3CRetTime%3E10:00%3C/RetTime%3E%3CBrochure%3E001%3C/Brochure%3E%3CAdults%3E2%3C/Adults%3E%3CChildren%3E0%3C/Children%3E%3CInfants%3E0%3C/Infants%3E%3CCurrencyCode%3EUKL%3C/CurrencyCode%3E%3C/Request%3E%3C/Availability%3E%3C/TransferOnly%3E%3C/TCOML%3E

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• How to add request validation errors to ModelStateDictionary in ASP.NET MVC?

  - by Morten Christiansen

  Investigating the security of a system I'm building with ASP.NET MVC 2 led me to discover the request validation feature of ASP.NET - a very neat feature, indeed. But obviously I don't just want to present the users with the Yellow Screen of Death when they enter data with HTML in, so I'm out to find a better solution. My idea is to find all the fields that have invalid data and add them to the ModelStateDictionary before invoking the action such that they automatically appear in the UI as error messages. After googling this a bit it appears that no one have implemented this before which I find puzzling since it seems so obvious. Does anyone here have a suggestion on how to do this? My own idea is to supply a custom ControllerActionInvoker to the controller, as described here, that somehow checks for this and modifies the ModelStateDictionary but I'm stuck on how to do this last bit. Just catching HttpRequestValidationException exceptions does not seem a useful approach since it does not actually contain all the information I need.

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• Pass elements of a list as arguments to a function in python

  - by Wilduck

  I'm building a simple interpreter in python and I'm having trouble handling differing numbers of arguments to my functions. My current method is to get a list of the commands/arguments as follows. args = str(raw_input('>> ')).split() com = args.pop(0) Then to execute com, I check to see if it is in my dictionary of command- code mappings and if it is I call the function I have stored there. For a command with no arguments, this would look like: commands[com]() However, if a command had multiple arguments, I would want this: commands[com](args[0],args[1]) Is there some trick where I could pass some (or all) of the elements of my arg list to the function that I'm trying to call? Or is there a better way of implementing this without having to use python's cmd class?

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• smarter character replacement using ruby gsub and regexp

  - by agriciuc

  Hi guys! I'm trying to create permalink like behavior for some article titles and i don't want to add a new db field for permalink. So i decided to write a helper that will convert my article title from: "O "focoasa" a pornit cruciada, împotriva barbatilor zgârciti" to "o-focoasa-a-pornit-cruciada-impotriva-barbatilor-zgarciti". While i figured out how to replace spaces with hyphens and remove other special characters (other than -) using: title.gsub(/\s/, "-").gsub(/[^\w-]/, '').downcase I am wondering if there is any other way to replace a character with a specific other character from only one .gsub method call, so I won't have to chain title.gsub("a", "a") methods for all the UTF-8 special characters of my localization. I was thinking of building a hash with all the special characters and their counterparts but I haven't figured out yet how to use variables with regexps. What I was looking for is something like: title.gsub(/\s/, "-").gsub(*replace character goes here*).gsub(/[^\w-]/, '').downcase Thanks!

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• Is it normal that conversationId keeps increasing after each page request?

  - by Casper

  Hi I'm building a Seam application and have a question: I got a stateless session bean (default seam scope) with a delete and a select method. A page which contains a datamodel loads and got links to select and delete each row (both links refer to the actionmethods in the bean). The delete method deletes the selected row from the list and returns null (reloads page). The select method loads a new page where the selected row can be edited. Each time a link in the datamodel is clicked and an action gets fired, the conversationId gets increased. Is this normal behaviour since im not even in a conversation? If it ain't normal behaviour, what's best practice to prevent this from happening?

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• using MODI in C# to read image - numbers with a length of 1 is missing

  - by keysersoze

  I am about building an C#-application in which I am trying to read text from an gif-image (OCR) - I am using MODI and the images are a bit like a lotto coupon (random numbers in rows and columns). I now got the following code which read all numbers except single numbers (1, 2, 3...) MODI.Document objModi = new MODI.Document(); objModi.Create("C:\\image.gif"); objModi.OCR(MODI.MiLANGUAGES.miLANG_DANISH, true, true); MODI.Image image = (MODI.Image)objModi.Images[0]; MODI.Layout layout = image.Layout; I cannot change the content of the image but can I do anything with the above code so it can read the single numbers?

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• Monthly Payment Processing

  - by jack

  I am building site for a client in .NET. The site has a monthly subscription service, wherein customer pay for the services with debit/credit card details. Money will be deducted from the account regularly. Customers can cancel the subscription service at any time and the collection should be stopped. Is there any service that I can use to accomplish this? Any information on how to go about developing this will be much appreciated. Thanks in advance.

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• Multiple outliers for two variable linear regression

  - by Dave Jarvis

  Problem Building on my previous question, the "extreme" outliers in the following graph are somewhat obvious: Question Given: T - Set of all temperatures Y - Set of all years ST - Sum of temperatures. SY - Sum of years. N - Number of elements T(n) - Temperature of the nth element in the temperature set How would you implement an efficient MySQL stored procedure or user-defined function (UDF) to determine if T(n) is an outlier? (If such an implementation already exists, that would be good to know as well.) Related Sites I am slowly working through these sites to get a better understanding of the problem: Multiple Outliers Detection Procedures in Linear Regression M-estimator Measure of Surprise for Outlier Detection Ordinary Least Squares Linear Regression Many thanks!

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• SqlCommand() ExecuteNonQuery() truncates command text.

  - by H. Abraham Chavez

  I'm building a custom db deployment utility, I need to read text files containing sql scripts and execute them against the database. Pretty easy stuff, so far so good. However I've encountered a snag, the contents of the file are read successfully and entirely, but once passed into the SqlCommand and then executed with SqlCommand.ExecuteNonQuery only part of the script is executed. I fired up Profiler and confirmed that my code is not passing all of the script. private void ExecuteScript(string cmd, SqlConnection sqlConn, SqlTransaction trans) { SqlCommand sqlCmd = new SqlCommand(cmd, sqlConn, trans); sqlCmd.CommandType = CommandType.Text; sqlCmd.CommandTimeout = 9000000; // for testing sqlCmd.ExecuteNonQuery(); } // I call it like this, readDMLScript contains 543 lines of T-SQL string readDMLScript = ReadFile(dmlFile); ExecuteScript(readDMLScript, sqlConn, trans);

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• Using Jquery to load Facebook fb:profile-pic - not working in IE

  - by Gublooo

  Hey.... I followed the tips given on Loading Facebook fb:profile via ajax In my app, I am basically loading more comments posted by the user via Jquery and along with each comment showing the user's picture using the fb:profile-pic tag This is a sample of how I'm building the string via Jquery newcomment += "<fb:profile-pic uid='"+data.fb_userid+"' height='50' width='50' /"; newcomment += ""+data.user_name+": "; newcomment += ""+data.user_comment+": "; $("#morecomments").append(newcomment); So the profile-pic was not being displayed - After reading the above link, I added if ( FB.XFBML.Host.parseDomTree ) setTimeout( FB.XFBML.Host.parseDomTree, 0 ); The weird thing now is - its working in Chrome and Firefox but not in IE Cant figure out why. Any help will be appreciated. Thanks

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• Signature invalid only for ad hoc

  - by brettr

  I'm not sure what changed on my ad hocs but I get this error when trying to install: Application failed codesign verification. The signature was invalid, or it was not signed with an Apple submission certificate. (-19011) Device debug builds fine. The cert that is associated with my ad hoc provisioning profile doesn't expire until 2011. I've searched Google but haven't found any applicable solution, except some mention about deleting and recreating the certs. Before I go down that rode, has any one experienced and resolved this issue? I'm using Xcode 3.2.3 and building against sdk 3.0.

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• Calculating spam probability in python

  - by Hobhouse

  I am building a website in python/django and want to predict wether a user submission is valid or wether it is spam. Users have an accept rate on their submissions, like this website has. Users can moderate other users' submissions; and these moderations are later metamoderated by an admin. Given this: user A with an submission accept rate of 60% submits something. user B moderates A's post as a valid submission. However, his moderations are often wrong, and his moderations' accept rate is a mere 30%. user C moderates A's post as spam. User C is usually right. His moderations' accept rate is 80%. How can I predict the chance of A's post being spam?

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• Xcode 3.2 + LLVM = no local symbols when debugging

  - by glebd

  I have a project for Mac OS X 10.5 that I'm building on 10.6 using Xcode 3.2. When I use GCC 4.2 for Debug build and hit a breakpoint, Xcode debugger displays local variable information normally. If I choose LLVM GCC 4.2 or Clang LLVM, when I hit breakpoint, local symbols are not available, and GDB says No symbol 'self' in current context if I try to print self or any other local symbol. In all cases Generate debug info option is set. The Debug configuration is set to $(NATIVE_ARCH) and 10.5 SDK, Build active architecture only option is set. When GDB starts, I can see it is being configured as x86_64-apple-darwin. I must be missing something obvious. How do I make GDB show local symbols when using a LLVM compiler?

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• Exception declared on ANTLR grammar rule ignored

  - by Kaleb Pederson

  I have a tree parser that's doing semantic analysis on the AST generated by my parser. It has a rule declared as follows: transitionDefinition throws WorkflowStateNotFoundException: /* ... */ This compiles just fine and matches the rule syntax at the ANTLR Wiki but my exception is never declared so the Java compiler complains about undeclared exceptions. ./tool/src/main/antlr3/org/antlr/grammar/v3/ANTLRv3.g shows that it's building a tree (but I'm not actually positive if it's the v2 or v3 grammar that ANTLR 3.2 is using): throwsSpec : 'throws' id ( ',' id )* -> ^('throws' id+) ; I know I can make it a runtime exception, but I'd like to use my exception hierarchy. Am I doing something wrong or should that syntax work?

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• Create unordered list tree menu from data stored in an table with the adjacency list model...php

  - by Ronedog

  I need to create a tree menu of "nth" subcategories. I settled on using the adjacency list model for my table structure, because I won't be updating this table very much and this seemed the easiest to implement for my use. I want to style the output using "ul" and "li" tags...I already have a css and jquery solution to do the styling. My problem comes from pulling the data out of the database and using a recursive function via PHP to build the list ... the list is a concatenated string that gets parsed to build the tree. I'm really having a hard time getting the closing "ul" and "li" tags to line up just where they need to be. Is this the best way to do this? Are there other better ways using arrays or something like that to do this? Any examples you can point me to of "best practices" for building a list like this will be appreciated. Thanks.

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• error: gnome.h: No such file or directory

  - by michael

  I would like to resolve this 'error: gnome.h: No such file or directory ' on ubuntu. I get this error: /bin/sh: gnome-config: not found In file included from TestMDI.cpp:18: ../../../../dist/include/system_wrappers/gnome.h:3:24: error: gnome.h: No such file or directory From this: http://ubuntuforums.org/showthread.php?t=295105 I tried: $ sudo apt-get install libgnomeui-dev Reading package lists... Done Building dependency tree Reading state information... Done libgnomeui-dev is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 21 not upgraded. But that still does not resolve my problem. Any idea how to fix it?

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• Why do I randomly get a "error to use section registered as allowDefinition='MachineToApplication'"

  - by Jedidja

  I have seen a few questions on SO about a similar error when deploying a website, but I seem to randomly get this error when building an ASP.NET MVC website in Visual Studio. Performing a clean usually fixes it, but is there any way to avoid this completely? It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS. d:...\obj\debug\package\packagetmp\web.config Note that it is complaining about the root web.config, not the one from the Views subdirectory.

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• Magic behind R.java file

  - by LambergaR

  Hi! Recently I have been having quite some problems with R.java file. Now I have decided to do a backup and delete the file to see what happens. Nothing happened, so I created an empty R.java file and hopped for the best. Now Eclipse seems to figure out that the file was tempered with and even issues a warning: R.java was modified manually! Reverting to generated version! And that's all there is. I tried building it manually but got no results. So, I have two questions: 1. what should I do to force Eclipse to generate the file 2. what is happening here? How is the file created, where is the code that is generating the file? I would appreciate any help. As usual the problem occurred just a few days before the deadline :)

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• What technical/legal responsibilities do I have when hosting images uploaded by others?

  - by Ferdy

  You may argue that this question has a legal flavor to it, and that would be correct. Still, it is also a question from a developer's perspective that may help others. I'm building an image community web site/application. Users can upload images. During upload, users have to select the license (copyrighted, attribution non-commercial or public domain). No matter which license they choose, it is just a piece of data. No matter the license, all users can view all images and also download all images, as you normally do on websites. My question is: what responsibility do I have as a "platform" to comply with these licenses? Do I need to actively prevent certain actions on these images, and into what extend? Is displaying the license enough to be legally safe? What if one of my users uploads images for which he has no license? Is it enough to just implement a "report this" feature?

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• Dynamically create sprite images for Cocos2d-iPhone

  - by AlexChilcott

  Hey guys, I'm working on a platformer, and looking for a way to create a sprite for an arbitrarily sized platform. For example, I may know I have a platform that should appear 200 pixels wide by 32 pixels high, and, say, I have a texture of bricks that I can tile to fill that area. I may also want to draw a black border around the platform. Is this possible at all? Anyone have any ideas for how I might go about doing this? I could always try generating the image on the fly and building a sprite with that image, but I sincerely doubt (hope) that this isn't the most efficient way of doing something like this. Cheers, Alex

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• What is the purpose of Managers / Transactions?

  - by maxdj

  I'm building a spring application for the first time. I'm running into lots of problems with concurrency, and I suspect that there is something wrong with the way I'm managing the backend. The only difference I can see between my backend code and examples I've seen are manager classes. In my code, I have my model (managed by hibernate) and my DAOs on top of that to do CRUD/searching/etc on the models. In example code I have looked at, they never use the DAO directly. Instead, they use manager classes that call the DAOs indirectly. To me, this just seems like pointless code duplication. What are these manager classes for? I've read that they wrap my code in "transactions," but why would I want that?

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• A question about some code from TBB book, Thanks.

  - by Jackie

  I am reading the book: Intel Threading Building Blocks. I often have difficulties understanding them. For example,the following code is from the book(page 112): Node* AllocateNode() { Node* n; FreeListMutexType::scoped_lock lock; lock.acquire(FreeListMutex); n=FreeList; if(n) Freelist=n->next; lock.release(); if(!n) n=new Node(); return n; } There is other introduction regarding this code. I can not understand it. What does it means? How can I understand this book better? Thanks.

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• Redirecting domain (not google apps) to appengine

  - by fredrik

  Hi, I'm building a application that supports different domains. A small CMS that supports different domains. But what I can't figure out is how to redirect other domains that's outside google apps. I have a domain at google apps, that work's perfectly. When I create a cname that points at either my appid.appspot.com or www.appsdomain.com it just goes to google.com. What do I need to do so the other domains point to my appengine application. ..fredrik

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• Problem wit MDAC when trying to compile in VS2008 using x64 bit target platform

  - by grobartn

  I am trying to compile an 32 bit application. I am aware of problems with it but that is why its being compiled on 64 bit version. I am hanging at this problem. Application uses lots of sql stuff. In sqltypes.h file: (provided by MDAC) #ifdef _WIN64 typedef INT64 SQLLEN; typedef UINT64 SQLULEN; typedef UINT64 SQLSETPOSIROW; #else For some reason when its compiled on 32 bit platform it works great But when I try building it on 64 it goes berserk. Error 61 error C2146: syntax error : missing ';' before identifier 'SQLLEN' ..\external\microsoft sdk\include\sqltypes.h 50 It does not recognize INT64, UINT64. Is there something I need to enable so it will work under 64 build process? Missing some #include or #define? Any help would be great Thanks

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• How to go to the next level integrating animations in WPF applications with Blend / VS2008?

  - by Edward Tanguay

  I have been able to create little animations with the storyline in Blend. And I have been able to copy in the isolated storylines and triggers into existing projects in visual studio to spruce them up on the edges a little bit. But after adding too many animations, they start to conflict or cancel each other out, etc., or I can make a panel slide down and slide it back up, then it no longer can slide down since it is not in its original state anymore. Does anyone have any links, video tutorials, books, resources which not only show you how to make a little animation and then leave you to figure out how to integrate numerous animations into a typical business application layout, but instead take you through the whole process of building a business application while integrating animations and WPF goodness with Blend and Visual Studio?

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