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• Hidden controls, iframes or divs

  - by user287745

  What happens to the controls or the iframe or the div, which are hidden? Do they get transferred to the user side? Disabled: does it get transferred to the user side? What I want is, an aspx page will be having many iframes to display different pages. There will be many div tags to display CSS formatted information. To understand what I mean by many:- I have to transfer a complete website with 30 aspx pages into one single page! I have simply combined everything resulting in one extremely huge page. My concern is that on local host it loads fast, but when on online server accessed by numerous people for education purposes, the site (ONE PAGE) WILL SLOW DOWN terribly. To overcome this I thought of using hidden and disable options. What is an improved way of achieving the above? Yes, it sounds silly but this is the requirement. Edit: Yes, I know id and server tag must be set, but what I am asking will the div tag be sent to the user's browser? One answer is no. So can I enable them using JavaScript? Like document.getElementById(id).style.visibility="visible" What if I disable them, and from coding of JavaScript enable them? Will they be loaded at the time of enabling?

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• ASP.NET 2.0 RijndaelManaged encryption algorithm vs. FIPS

  - by R Rush

  I'm running into an issue with an ASP.NET 2.0 application. Our network folks just upped our security, and now I get the floowing error whenever I try to access the app: "This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms." I've done a little research, and it sounds like ASP.NET uses the RijndaelManaged AES encryption algorithm to encrypt the ViewState of pages... and RijndaelManaged is on the list of algorithms that aren't FIPS compliant. We're certainly not explicitly calling any encryption algorithm... much less anything on the non-compliant list. This ViewState business makes sense to me, I guess. The thing I can't muddle out, though, is what to do about it. I've found a KB article that suggests using a web.config setting to specify a different algorithm... but either that didn't stick, or that algorithm isn't up to snuff, either. So: 1) Is the RijndaelManaged / ViewState thing actually the problem? Or am I barking up the wrong tree? 2) How to I specify what algorithm to use instead of RijndaelManaged? I've got a list of algorithms that are and aren't compliant; I'm just not sure where to plug that information in. Thanks! Richard

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• How reliable is DateTime.Utc in Silverlight applications?

  - by Edward Tanguay

  I have a silverlight application which users will be running in various time zones. The applications load their data from the server at one time, then cache it in IsolatedStorage. When I make changes to the data on the server, I want to be able to change the "last updated time" so that all applications download the newest data the next time they check this date. However, I'm a bit confused as to how to handle the time zone issue since a if the server is in New York and the update time is set to 2010-01-01 17:00:00 and a client in Seattle checks compares it to its local time of 2010-01-01 14:00:00 it won't update and will continue to provide old data for three more hours. My solution is to always post the update time in UTC time, not with the time on the server, then make the Silverlight app check with DateTime.UtcNow. Is this as easy as it sounds or are their issues with this, e.g. that timezones are not set correctly on computers and hence the SilverlightApp does not report the correct UTC time. Can anyone say from experience how likely it is that using DateTime.UtcNow like this for cache refreshing will work in all cases? If DateTime.UtcNow is not reliable, I will just use an incremented "DataVersion" integer but there are other scenarios in which getting time zone sychronization down would make it useful thoroughly understand how to solve this in silverlight apps.

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• How do I grant a site's applet an AllPermission privilege?

  - by nahsra

  I'd like to specify certain applets to run with java.security.AllPermission on my computer (for debugging and security testing). However, I don't want to enable all applets that I run to have this permission. So, editing my user Java policy file (which I have ensured is the correct policy file through testing), I try to put this value: grant codeBase "http://host_where_applet_lives/-" { permission java.security.AllPermission; }; This value fails when the applet tries to do something powerful (create a new Thread, in my case). However, when I put the following value: grant { permission java.security.AllPermission; }; The applet is able to perform the powerful operation. The only difference is the lack of a codeBase attribute. An answer to a similar question asked here [1] seemed to suggest (but never show or prove) that AccessController.doPrivileged() calls may be required. To me, this sounds wrong as I don't need that call when I grant the permissions to all applets (the second example I showed). Even if this is a solution, littering the applets I run with AccessController.doPrivileged() calls is not easy or necessarily possible. To top it off, my tests show that this just doesn't work anyway. But I'm happy to hear more ideas around it. [1] http://stackoverflow.com/questions/1751412/cant-get-allpermission-configured-for-intranet-applet-can-anyone-help

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• Project Architecture For Enhancing Legacy project.

  - by vijay.shad

  I am working on legacy project. Now the situation demands project to be divided into parts. What strategy I should follow to do this task. Description: The legacy project (A) is fully functional web application with almost well defined layers. But now i need to extend the project to a further enhancement. This project usage maven as build tool. But it is used only for dependency managements only. (project exported to war form inside eclipse). The new enhancement needs me to add new data table, new UI(jsp, css, js and images). What should be my strategy to enhance to application. My proposed design. I am planing to create two new projects Project B : Main Enhancement works will done in this project. Will have all layers like service layer, dao layer and UI layer in itself. And will be a web application in itself. Project C : Extract some common model and service code form project-A and create this project. This project will be added as dependency to both the projects. If my this approach is okay! Then i presume there will be problem be problem in deployment. These two projects will demand to deploy separately(currently tomcat is used). But I must deploy these two projects as one war. So, i need to have a plan to change the web.xml entries to have configurations for both projects. This will comes with some more complexities with project. What should be my design for the project? Does my plan sounds good.

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• The Coolest Parts of Windows API

  - by Andreas Rejbrand

  I have noticed that there are quite a few community wikis about "Tips & Tricks" or "Hidden Features" in programming languages and APIs here at Stack Overflow. But I could not find any about my own personal favourites: Win32 API and Delphi. Therefore I start my "own" CW about Win32 API. There are (at least) two kinds of Win API users: those that have been brought up using Windows API in C/C++, and those that have been brought up using some level of abstraction above the Windows API. I belong to the latter category, being brought up using Delphi's VCL. But over the last five years, I have become increasingly interested in the underlaying API of the Windows operating system, and today I work a lot with it. Depending on which category a programmer belongs to, he (or possibly she) will think that different things are "cool" in the Windows API. For instance, whereas a VCL-brought up developer might think it it very cool to var errIcon: HICON; begin errIcon := LoadIcon(0, IDI_ERROR); DrawIcon(Canvas.Handle, 10, 10, errIcon), a programmer brought up using Windows API in C will not be as impressed. But no matter how you are "brought up": what are the coolest "tricks" in Windows API? I start by listing a few of my own favourites, some of which are more "cool" than "useful", though: LoadIcon and MessageBeep can load/play system default icons and sounds. Open the CD tray: mciSendString('Set cdaudio door open wait', nil, 0, 0); Fade out the screen (Windows Vista and later) and turn of the monitor: SendMessage(Application.Handle, WM_SYSCOMMAND, SC_MONITORPOWER, 2); GetWindowDC(GetDesktopWindow) returns the DC of the desktop.

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• Setting the value of a radio button with JQuery (ASP.NET MVC)

  - by Mario

  I have 2 "lists" of (4) radio buttons {value = "0", "1", "2", "3"} in all lists. The first list needs to drive the second list (which may occur multiple times). So if an option is selected in the first list, the SAME option is selected in the second list. It sounds weird, but it has a purpose. The first list is more of a "select all" type of list, and the second list is an individual selection list(s). I have the value of the "selectall" list via JQuery: $("#selectalllist").change(function() { var str = $('input[name=selectall]:checked').val(); $(".radiolist").attr('checked', str); //This is my thinking }); The current selected value is stored in the str variable, and that is seemingly correct (I used alert to tell me what is stored, and it comes up what I expect). I just need to set the value of the next set of lists. The second line of the code I thought would set the checked value of $(".radiolist") to the stored value, but it ALWAYS set the value to the last entry (value = "3"). I'm wondering if I have the wrong attribute in the .attr('', str) call? Any thoughts?

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• Can the Flash CS4 [embed] tag be made to export assets to frame 2 rather than frame 1?

  - by Tim Knauf

  We're working on a Flash CS4 project where the main .fla file has ballooned in size and 'Publish' is taking forever. I suspect a large amount of the size (and at least some of the compile time) is due to the quantity of audio symbols in the library. I would love to remove this unnecessary bloat from the .fla file. I've experimented with removing an audio symbol from the library and using the [embed] metadata tag instead, like so: [Embed(source="audio/music/EndOfLevelDitty.mp3")] public var EndOfLevelDitty:Class The resulting published file works perfectly, but there is a problem. Our game uses a preloader on the first frame of the timeline, so all other classes need to be exported in frame 2 (as set in Publish Settings ActionScript 3.0 Settings). So a size report normally begins like this: Frame # Frame Bytes Total Bytes Scene ------- ----------- ----------- ---------------- 1 284515 284515 Scene 1 2 5485305 5769820 (AS 3.0 Classes Export Frame) However, if I use an [embed] tag on a small sound, my size report is now: Frame # Frame Bytes Total Bytes Scene ------- ----------- ----------- ---------------- 1 363320 363320 Scene 1 2 5407240 5770560 (AS 3.0 Classes Export Frame) As you can see, the embedded sound has been exported into frame 1 rather than frame 2. If I were to embed all sounds in this manner, the size of frame 1 would grow to be huge, and users would be looking at a white screen for ages before the preloader frame even loaded. So my question is this: can I use an [embed] tag but have the embedded asset export in frame 2 instead of frame 1? Project constraints: Our team composition means we can't change to pure Flex at this stage. The compiled .swf needs to be 'all in one', so we can't split the preloader into a separate file, and we can't access external resources. Edit: I'd also settle for having the audio in an embedded library SWC, but there seems to be no way to make that embed in frame 2 either; it always ends up in frame 1.

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• Database design problem: intermediate table between 2 tables may end up with too many results.

  - by SK.

  I have to design a database to handle forms. Basically, a form needs to go through (exactly) 7 people, one by one. Each person can either agree or decline a form. If one declines, the chain stops and the following people don't even get notified that there is a form. Right now I have thought of those 3 tables: FORM, PERSON, and RESPONSE inbetween. However, my first solution sounds too heavy because each form could have up to 7 responses. Here we are with the table inbetween. That means that each successful form has 7 rows in the table RESPONSE. Here we have the responding information directly inside the form. It looks ugly but at least keeps everything as singular as possible. On the bad side I can't track the response dates, but I don't think it is crucial for that matter. What is your opinion on this? I feel like both of them are wrong and I don't know how to fix that. If that matters, I'll be using Oracle 9.

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• Silverlight Data Access - how to keep the gruntwork on the server

  - by akaphenom

  What technologies are used / recommended for HTTP Rpc Calls from Silverlight. My Server Side stack is JBoss (servlets / json_rpc [jabsorb]), and we have a ton of business logic (object creation, validation, persistence, server side events) in place that I still want to take advantage of. This is our first attempt at bringing an applet style ria to our product, and ideally we keep both HTML and Silverlight versions. For better or worse the powers that be have pushed us down the silverlight path, and while flex / java fx / silverlight is an interesting debate, that question is removed from the equation. We just have to find a way to get silverlight to behave with our classes. Should I be defining .NET Class representation of our JSON objects and the methodology to serialize / deserialize access to those objects? IE "blah.com/dispenseRpc?servlet=xxxx&p1=blah&p2=blahblah creating functions that invoke the web request and convert the incomming response string to objects? Another way would be to reverse engineer the .NET wcf(or whatever) communications and implement the handler on the Java side that invokes the correct server side code and returns what .NET expects back. But that sounds much trickier. T

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• Using Regex Replace when looking for un-escaped characters

  - by Daniel Hollinrake

  I've got a requirement that is basically this. If I have a string of text such as "There once was an 'ugly' duckling but it could never have been \'Scarlett\' Johansen" then I'd like to match the quotes that haven't already been escaped. These would be the ones around 'ugly' not the ones around 'Scarlett'. I've spent quite a while on this using a little C# console app to test things and have come up with the following solution. private static void RegexFunAndGames() { string result; string sampleText = @"Mr. Grant and Ms. Kelly starred in the film \'To Catch A Thief' but not in 'Stardust' because they'd stopped acting by then"; string rePattern = @"\\'"; string replaceWith = "'"; Console.WriteLine(sampleText); Regex regEx = new Regex(rePattern); result = regEx.Replace(sampleText, replaceWith); result = result.Replace("'", @"\'"); Console.WriteLine(result); } Basically what I've done is a two step process find those characters that have already been escaped, undo that then do everything again. It sounds a bit clumsy and I feel that there could be a better way.

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• Matching a Repeating Sub Series using a Regular Expression with PowerShell

  - by Hinch

  I have a text file that lists the names of a large number of Excel spreadsheets, and the names of the files that are linked to from the spreadsheets. In simplified form it looks like this: "Parent File1.xls" Link: ChildFileA.xls Link: ChildFileB.xls "ParentFile2.xls" "ParentFile3.xls" Blah Link: ChildFileC.xls Link: ChildFileD.xls More Junk Link: ChildFileE.xls "Parent File4.xls" Link: ChildFileF.xls In this example, ParentFile1.xls has embedded links to ChildFileA.xls and ChildFileB.xls, ParentFile2.xls has no embedded links, and ParentFile3.xls has 3 embedded links. I am trying to write a regular expression in PowerShell that will parse the text file producing output in the following form: ParentFile1.xls:ChildFileA.xls,ChildFileB.xls ParentFile3.xls:ChildFileC.xls,ChildFileD.xls,ChildFileE.xls etc The task is complicated by the fact that the text file contains a lot of junk between each of the lines, and a parent may not always have a child. Furthermore, a single file name may pass over multiple lines. However, it's not as bad as it sounds, as the parent and child file names are always clearly demarcated (the parent with quotes and the child with a prefix of Link: ). The PowerShell code I've been using is as follows: $content = [string]::Join([environment]::NewLine, (Get-Content C:\Temp\text.txt)) $regex = [regex]'(?im)\s*\"(.*)\r?\n?\s*(.*)\"[\s\S]*?Link: (.*)\r?\n?' $regex.Matches($content) | %{$_.Groups[1].Value + $_.Groups[2].Value + ":" + $_.Groups[3].Value} Using the example above, it outputs: ParentFile1.xls:ChildFileA.xls ParentFile2.xls""ParentFile3.xls:ChildFileC.xls ParentFile4.xls:ChildFileF.xls There are two issues. Firstly, the inclusion of the "" instead of a newline whenever a Parent without a Child is processed. And the second issue, which is the most important, is that only a single child is ever shown for each parent. I'm guessing I need to somehow recursively capture and display the multiple child links that exist for each parent, but I'm totally stumped as to how to do this with a regular expression. Amy help would be greatly appreciated. The file contains 100's of thousands of lines, and manual processing is not an option :)

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• How reliable is DateTime.UtcNow in Silverlight applications?

  - by Edward Tanguay

  I have a silverlight application which users will be running in various time zones. These applications load their data from the server upon start up, then cache it in IsolatedStorage. When I make changes to the data on the server, I want to be able to change the "last updated time" so that all silverlight clients download the newest data the next time they check this date. However, I'm a bit confused as to how to handle the time zone issue since a if the server is in New York and the update time is set to 2010-01-01 17:00:00 and a client in Seattle checks compares it to its local time of 2010-01-01 14:00:00 it won't update and will continue to provide old data for three more hours. My solution is to always post the update time in UTC time, not with the time on the server, then make the Silverlight app check with DateTime.UtcNow. Is this as easy as it sounds or are their issues with this, e.g. that timezones are not set correctly on computers and hence the SilverlightApp does not report the correct UTC time. Can anyone say from experience how likely it is that using DateTime.UtcNow like this for cache refreshing will work in all cases? If DateTime.UtcNow is not reliable, I will just use an incremented "DataVersion" integer but there are other scenarios in which getting time zone sychronization down would make it useful to thoroughly understand how to solve this in silverlight apps.

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• Assembly installed into the GAC not showing up in Visual Studio

  - by yodaj007

  This sounds related to this question, but they aren't the same thing. That question had no assemblies showing up. Mine has everything except the specific one I installed. I'm hoping someone has a solution to this... am I doing something wrong? Or did I find some bug in VS? I am using Visual Studio 2010 Professional Beta 2 on Windows 7 Ultimate. I just downloaded Rhino Mocks and decided to install it into the GAC using the command-line utility GACUTIL. I then rebooted. Here you can see the assembly in my GAC (click to enlarge): And here is the list of assemblies available to me in Visual Studio: Here is the command prompt where I installed it, and then confirmed it: C:\Users\jason\Downloads>gacutil -i Rhino.Mocks.dll Microsoft (R) .NET Global Assembly Cache Utility. Version 4.0.21006.1 Copyright (c) Microsoft Corporation. All rights reserved. Assembly successfully added to the cache C:\Users\jason\Downloads>gacutil /l |grep -i rhino Rhino.Mocks, Version=3.6.0.0, Culture=neutral, PublicKeyToken=0b3305902db7183f, processorArchitecture=MSIL

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• Open space sitting optimization algorithm

  - by Georgy Bolyuba

  As a result of changes in the company, we have to rearrange our sitting plan: one room with 10 desks in it. Some desks are more popular than others for number of reasons. One solution would be to draw a desk number from a hat. We think there is a better way to do it. We have 10 desks and 10 people. Lets give every person in this contest 50 hypothetical tokens to bid on the desks. There is no limit of how much you bid on one desk, you can put all 50, which would be saying "I want to sit only here, period". You can also say "I do not care" by giving every desk 5 tokens. Important note: nobody knows what other people are doing. Everyone has to decide based only on his/her best interest (sounds familiar?) Now lets say we obtained these hypothetical results: # | Desk# >| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 1 | Alise | 30 | 2 | 2 | 1 | 0 | 0 | 0 | 15 | 0 | 0 | = 50 2 | Bob | 20 | 15 | 0 | 10 | 1 | 1 | 1 | 1 | 1 | 0 | = 50 ... 10 | Zed | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | = 50 Now, what we need to find is that one (or more) configuration(s) that gives us maximum satisfaction (i.e. people get desks they wanted taking into account all the bids and maximizing on the total of the group. Naturally the assumption is the more one bade on the desk the more he/she wants it). Since there are only 10 people, I think we can brute force it looking into all possible configurations, but I was wondering it there is a better algorithm for solving this kind of problems?

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• 3 Servers, is this is a cluster?

  - by Andy Barlow

  Hello, At the moment I have one Ubuntu server, 9.10, running with a simple Samba share, a mail server, DNS server and DHCP server. Mostly its just there for file sharing and email server. I also have 2 other servers that are exactly the same hardware and spec as the first, which have an rsync set up to retrieve the shared folders and backs them up. However, if the first server goes down, all of our shares disappear along with our mail and the system must be rebuilt. Also I tend to find if people are downloading a large amount from the file server, no-one can access there emails - especially in the morning when everyone is signing in at once. Would it be more beneficial for me to have all 3 servers, all running the same services, doing the same thing with some sort of cluster with load balancing? I'm not really sure where to begin looking, or how to go about such a setup where 3 servers are all identical, but perhaps one acts as the main load balancer?? If someone can point me in the right direction, or if this simply sounds like one of those Enterprise Cloud's that is now a default setup in Ubuntu Server 9.10+, then I'll go down that route. Cheers in advance. Andy

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• Is there a Standard or Best Practice for Perl Progams, as opposed to Perl Modules?

  - by swestrup

  I've written any number of perl modules in the past, and more than a few stand-alone perl programs, but I've never released a multi-file perl program into the wild before. I have a perl program that is almost at the beta stage and is going to be released open source. It requires a number of data files, as well as some external perl modules -- some I've written myself, and some from CPAN -- that I'll have to bundle with it so as to ensure that someone can just download my program and install it without worrying about hunting for obscure modules. So, it sounds to me like I need to write an installer to copy all the files to standard locations so that a user can easily install everything. The trouble is, I have no idea what the standard practice would be for this. I have found lots of tutorials on perl module standards, but none on perl program standards. Does anyone have any pointers to standard paths, installation proceedures, etc, for perl programs? This is going to be complicated by the fact that the program is multi-platform. I've been testing it in Linux, but its designed to work equally well in Windows.

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• Putting CAPTCHAs on their own page?

  - by mnemosyn

  We need to put a captcha image on our ASP.NET MVC 2 based website. We chose reCaptcha and built it in using the way described by Derik Whittaker. The idea there is baiscally to build some abstractions and all you need to do is decorate your Controller with a [ValidateCaptcha] attribute. This works all fine. However, we have a lot of form-widgets in different pages and I don't want to have the captcha floating around everywhere. So I'd like to implement it the way StackOverflow does: Submit a Form -> Challenge Captcha -> Submit Captcha -> Perform Action on original form data. Now, how do I redirect the user to the captcha page while keeping the originally submitted information? I thought of some very ugly hacks (hidden fields w/ base64 encoded form data, etc.) but I think I'm missing something obvious. On the other hand, this sounds as if I wanted to do something in a stateful manner, and I shouldn't?

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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 example is: Soundfoo,120,10 Soundbar,30,6 Sounddev,60,20 Soundrandom,15,8 The script works out the minimum instances of plays, take 'Soundfoo' for example, the length of each sample is 120 seconds and the minimum time to be played is 10 minutes, so basic maths 10*60/120 gives the number of instances the song is to be played, in this case 5. It is meant to take minimum number of instances and spread out equally from each other; so there will never be a period where for example Soundbar is played twice in a row. Then if the minium instances of each song has been used, and there is still time with in the 60 min, how is it possible to tell it to go back and fill the time by selecting each sound and including it till the 60 min is filled while remaining sparsely populated. Heres the issue(s)! The script fails to calculate the actual time require to play all the sounds in a file and the total time of the playlist, the thing is tho it doesn't get it wrong all the time maybe 3/5 times, even if I run it on the same csv file it will give me different answers. Here is the file I shall run the script on e for sake of ease to see the issue: Sound1,60,10 Sound2,60,10 Sound3,60,10 Sound4,60,10 Sound5,60,10 Sound6,60,10 I'll do it three times and post the results: 1 Required playtime in minutes: 60 Actual time in minutes to play all required ads: 62 Total playtime in minutes: 62.0 2 Required playtime in minutes: 60 Actual time in minutes to play all required ads: 71 Total playtime in minutes: 71.0 3 Required playtime in minutes: 60 Actual time in minutes to play all required ads: 60 Total playtime in minutes: 60.0 Relevant Code: pastebin.com/demkBXk6 And finally... in context: http://pastebin.com/demkBXk6 If you made it down to here, thanks for staying and reading, kudos.

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• How can I create a dynamic LINQ query in C# with possible multiple group by clauses?

  - by FordPrefect141

  I have been a programmer for some years now but I am a newcomer to LINQ and C# so forgive me if my question sounds particularly stupid. I hope someone may be able to point me in the right direction. My task is to come up with the ability to form a dynamic multiple group by linq query within a c# script using a generic list as a source. For example, say I have a list containing multiple items with the following structure: FieldChar1 - character FieldChar2 - character FieldChar3 - character FieldNum1 - numeric FieldNum2 - numeric In a nutshell I want to be able to create a LINQ query that will sum FieldNum1 and FieldNum2 grouped by any one, two or all three of the FieldChar fields that will be decided at runtime depending on the users requirements as well as selecting the FieldChar fields in the same query. I have the dynamic.cs in my project which icludes a GroupByMany extension method but I have to admit I am really not sure how to put these to use. I am able to get the desired results if I use a query with hard-wired group by requests but not dynamically. Apologies for any erroneous nomenclature, I am new to this language but any advice would be most welcome. Many thanks Alex

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• System.ArgumentException: Invalid hex character at DecryptAssemblyResource

  - by Radu094

  My webapp is trowing these exceptions intermitently ever since we migrated to Mono + Apache: The error sounds more like a problem reading/processing some assembly, so I was wondering if I should be worried that there might be a problem with the hard-drive? System.ArgumentException: Invalid hex character at System.Web.Configuration.MachineKeySectionUtils.ToHexValue (Char c, Boolean high) [0x00000] in <filename unknown>:0 at System.Web.Configuration.MachineKeySectionUtils.GetBytes (System.String key, Int32 len) [0x00000] in <filename unknown>:0 at System.Web.Handlers.ScriptResourceHandler.GetBytes (System.String val) [0x00000] in <filename unknown>:0 at System.Web.Handlers.ScriptResourceHandler.DecryptAssemblyResource (System.String val, System.String& asmName, System.String& resName) [0x00000] in <filename unknown>:0 at System.Web.Handlers.ScriptResourceHandler.ProcessRequest (System.Web.HttpContext context) [0x00000] in <filename unknown>:0 at System.Web.Handlers.ScriptResourceHandler.System.Web.IHttpHandler.ProcessRequest (System.Web.HttpContext context) [0x00000] in <filename unknown>:0 at System.Web.HttpApplication+<Pipeline>c__Iterator2.MoveNext () [0x00000] in <filename unknown>:0 at System.Web.HttpApplication.Tick () [0x00000] in <filename unknown>:0 Method: Void Application_Error(System.Object, System.EventArgs) at File: at Line Number: 0 Method: Void ProcessError(System.Exception) at File: at Line Number: 0 Method: Void Tick() at File: at Line Number: 0 Method: Void Start(System.Object) at File: at Line Number: 0 Method: Void System.Web.IHttpHandler.ProcessRequest(System.Web.HttpContext) at File: at Line Number: 0 Method: Void Process(System.Web.HttpWorkerRequest) at File: at Line Number: 0 Method: Void RealProcessRequest(System.Object) at File: at Line Number: 0 Method: Void ProcessRequest(System.Web.HttpWorkerRequest) at File: at Line Number: 0 Method: Void ProcessRequest() at File: at Line Number: 0 Method: Void ProcessRequest(Mono.WebServer.MonoWorkerRequest) at File: at Line Number: 0 Method: Void ProcessRequest(Int32, System.String, System.String, System.String, System.String, System.String, Int32, System.String, Int32, System.String, System.String[], System.String[], System.Object) at File: at Line Number: 0 Method: Void InnerRun(System.Object) at File: at Line Number: 0 Method: Void Run(System.Object) at File: at Line Number: 0

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• Version control - stubs and mocks

  - by Tesserex

  For the sake of this question, I don't care about the difference between stubs, mocks, dummies, fakes, etc. Let's say I'm working on a project with one other person. I'm working on component A and he is working on component B. They work together, so I stub out B for testing, and he stubs out A. We're working in a DVCS, let's say Git, because that's actually the case here. When it comes time to merge our components together, we need to get the "real" files from my A and his B, but throw away all the fake stuff. During development, it's likely (unless I need to learn how to properly stub things) that the fakes have the same file names and class names as the real thing. So my question is: what is the proper procedure for doing version control on the fakes, and how are the components correctly merged, making sure to grab the real thing and not the fake? I would guess that one way is just do the merge, expect it to say CONFLICT, and then manually delete all the fake code out of the half-merged files. But this sounds tedious and inefficient. Should the fake things not go under VC at all? Should they be ripped out just before merging? Sorry if the answer to this should be obvious or trivial, I'm just looking for a "suggested practice" here.

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• Using a version control system as a data backend

  - by JacobM

  I'm involved in a project that, among other things, involves storing edits and changes to a large hierarchical document (HTML-formatted text). We want to include versioning of textual changes and of structural changes. Currently we're maintaining the tree of document sections in a relational database, but as we start working on how to manage versioning of structural changes, it's clear that we're in danger of having to write a lot of the functionality that a version control system provides. We don't want to reinvent the wheel. Is it possible that we could use an existing version control system as the data store, at least for the document itself? Presumably we could do so by writing out new versions to the filesystem, and keeping that directory under version control (and programmatically doing commits and so forth) but it would be better if we could directly interact with the repository via code. The VCS that we are most familiar with is Subversion, but I'm not thrilled with how Subversion represents changes to the directory structure -- it would be nice if we could see that a particular revision included moving a section from Chapter 2 to Chapter 6, rather than just seeing a new version of the tree. This sounds more like the way a system like Mercurial handles changes to the structure. Any advice? Do VCS's have public APIs and so forth? The project is in Java (with Spring) if it matters.

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• Two PickerViews in save View issue?

  - by NextRev

  I'm trying to have 2 pickerviews in the same view. It works except for two things. If one pickerview has more rows than the other the app crashes when picking an item from the pickerview with more items. Also I created an NSLog for the pickerviews and the console shows that I'm picking two items at once when in fact i'm only dealing with one pickerview. I know it sounds a bit confusing but I'm including all the code. Thank you in advance. list and list2 are NSMutableArrays list has 4 items list2 has 5 items There error: * Terminating app due to uncaught exception 'NSRangeException', reason: '* -[NSCFArray objectAtIndex:]: index (4) beyond bounds (4)' -(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)thePickerView{ if([thePickerView isEqual:pickerView1 ]){ return 1; } else if([thePickerView isEqual:pickerView2]){ return 1; } else{ return 0; } } -(NSInteger)pickerView:(UIPickerView *)thePickerView numberOfRowsInComponent:(NSInteger)component{ if([thePickerView isEqual:pickerView1 ]){ return [list count]; } else if([thePickerView isEqual:pickerView2]){ return [list2 count]; } else{ return 0; } } -(NSString *)pickerView:(UIPickerView *)thePickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{ if([thePickerView isEqual:pickerView1 ]){ return [list objectAtIndex:row]; } else if([thePickerView isEqual:pickerView2]){ return [list2 objectAtIndex:row]; } else{ return 0; } } - (void)pickerView:(UIPickerView *)thePickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component { NSLog(@"Selected item %@. Index of selected item:%i", [list objectAtIndex:row], row); NSLog(@"Selected item %@. Index of selected item:%i", [list2 objectAtIndex:row], row); NSLog(@"Selected item %@. Index of selected item:%i", [list3 objectAtIndex:row], row); if([thePickerView isEqual:pickerView1 ]){ //Do Something } else if([thePickerView isEqual:pickerView2 ]){ //Do Something } else if([thePickerView isEqual:pickerView3 ]){ //Do Something } }

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• Thin permissions in etc folder (Ubuntu)

  - by Apollo

  I am working on a RoR server setup that uses Thin and Nginx. It works fine, but only if I manually add the folder /etc/thin and set the permissions to 777 in order to use the command below: thin config -C /etc/thin/testapp.yml -c /var/www/testapp --servers 1 -e production If I don't set it to 777, I get this error: me@UbuntuRails:/etc$ thin config -C /etc/thin/testapp.yml -c /var/www/testapp --servers 1 -e production /usr/local/rvm/gems/ruby-1.9.3-p286@rails328/gems/thin-1.5.0/lib/thin/controllers/controller.rb:115:in initialize': Permission denied - /etc/thin/testapp.yml (Errno::EACCES) from /usr/local/rvm/gems/ruby-1.9.3-p286@rails328/gems/thin-1.5.0/lib/thin/controllers/controller.rb:115:inopen' from /usr/local/rvm/gems/ruby-1.9.3-p286@rails328/gems/thin-1.5.0/lib/thin/controllers/controller.rb:115:in config' from /usr/local/rvm/gems/ruby-1.9.3-p286@rails328/gems/thin-1.5.0/lib/thin/runner.rb:187:inrun_command' from /usr/local/rvm/gems/ruby-1.9.3-p286@rails328/gems/thin-1.5.0/lib/thin/runner.rb:152:in run!' from /usr/local/rvm/gems/ruby-1.9.3-p286@rails328/gems/thin-1.5.0/bin/thin:6:in' from /usr/local/rvm/gems/ruby-1.9.3-p286@rails328/bin/thin:19:in load' from /usr/local/rvm/gems/ruby-1.9.3-p286@rails328/bin/thin:19:in' from /usr/local/rvm/gems/ruby-1.9.3-p286@rails328/bin/ruby_noexec_wrapper:14:in eval' from /usr/local/rvm/gems/ruby-1.9.3-p286@rails328/bin/ruby_noexec_wrapper:14:in' I don't like to set this folder to a 777, sounds like a rubbish workaround. I run everything from an admin user account, not root. RVM runs from my admin user and gem only works in my admin as well. If I sudo that action, nothing happens because my root doesn't "know" thin. Which is the correct way to handle this? Thanks!

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