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• Display page numbers in a excel sheet generated using C#.NET

  - by constant learner

  Hello Stackers Does anyone have an idea on how to include or input the page numbers in the excel sheet generated using C# code. I use the libraries available in Microsoft.Office.Interop.Excel to generate the file. However by default in the output i cannot see the page numbers. I know to enable this via excel options (View -- Header and Footer ...) but i want to automate this via C#. Is this possible, if yes kindly share the snippet for the same. Thanks Constant Learner

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• Python - do big doc strings waste memory?

  - by orokusaki

  I understand that in Python a string is simply an expression and a string by itself would be garbage collected immediately upon return of control to a code's caller, but... Large class/method doc strings in your code: do they waste memory by building the string objects up? Module level doc strings: are they stored infinitely by the interpreter? Does this even matter? My only concern came from the idea that if I'm using a large framework like Django, or multiple large open source libraries, they tend to be very well documented with potentially multiple megabytes of text. In these cases are the doc strings loaded into memory for code that's used along the way, and then kept there, or is it collected immediately like normal strings?

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• Set Theory and .NET

  - by MasterMax1313

  Recently I came across a situation where set theory and set math fit what I was doing to the letter (granted there was an easier way to accomplish what I needed - i.e. LINQ - but I didn't think of that at the time). However I didn't know of any generic set libraries. Granted IEnumerables provide some set operations (Union, etc.), but nothing like Intersection or set comparison. Can anyone point out something that fits here? Something that implements set math using a generic type?

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• How te execute with /bin/false shell

  - by Amar

  Hello I am trying to setup per-user fastcgi scripts that will run each on different port and with different user. Here is example of my script: #!/bin/bash BIND=127.0.0.1:9001 USER=user PHP_FCGI_CHILDREN=2 PHP_FCGI_MAX_REQUESTS=10000 etc... However, if I add user with /bin/false (which I want, since this is about to be something like shared hosting and I dont want users to have shell access), the script is run'd under 1001, 1002 'user' which, as I googled, might be security hole. My question is: Is it possible to allow user(s) execute shell scripts but disable them to log in via SSH ? Thank you

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• PHP : How to understand bitmask value of access from ini_get_all function

  - by justjoe

  i'm start to use ini_get_all function to retrieve all configuration option on a shared host server. in the end i got this chunk of array : [allow_call_time_pass_reference] => Array ( [global_value] => 1 [local_value] => 1 [access] => 6 ) [allow_url_fopen] => Array ( [global_value] => 1 [local_value] => 1 [access] => 4 ) The PHP manual just give descripstion : It's possible for a directive to have multiple access levels, which is why access shows the appropriate bitmask values. so, can anybody explain about 'access' ? ans how to understand its bitmask values ?

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• Regex matching very slow

  - by Ali Lown

  I am trying to parse a PDF to extract the text from it (please don't suggest any libraries to do this, as this is part of learning the format). I have already handled deflating it to put it in the alphanumeric format. I now need to extract the text from the text blocks. So, my current pattern is "BT.*?((.*?)).*?ET" (with DOTMATCHALL set) to match something like: BT /F13 12 Tf 288 720 Td (ABC) Tj ET The only bit I want is the text ABC in the brackets. The above pattern works, but is really slow, I assume it is because the regex library is failing to match the pattern that matches the text between BT and the (ABC) many times. The regex is pre-compiled in an attempt to speed it up, but it seems negligible. How may I speed this up?

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• Godaddy ASPNET membership database woes -- PLEASE HELP

  - by The_AlienCoder

  Ok heres the deal I purchased a windows shared hosting account on godaddy that came with 2 MSSQL databases. I setup one to hold my site data and the other installed aspnet membership schema to store site members. The site works perfectly even displaying data from the 1st database. However when I try to login or register I get this nasty error Exception Details: System.Configuration.Provider.ProviderException: The SSE Provider did not find the database file specified in the connection string. At the configured trust level (below High trust level), the SSE provider can not automatically create the database file. Ive gone through my web.config and theres nothing wrong with my 2 connection strings. It seems godaddy has a problem with using 2 mssql databases simultaneously when 1 is for membership. Googling just finds a whole lot of people with the same problem -- but no solutions! Does anyone know a solution or a workaround?...or has anyone ever successfully used 2 databases(1 for membership) on godaddy?

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• PHP voting system with sessions?

  - by pingu

  Hi guys, I've been reading up on stackoverflow about creating voting systems in PHP that minimize abuse/multiple voting from the same user, but I haven't come across the answer to my question. I've got an application where users don't need to register to vote or "like" an entry. Obviously, I want to minimize abuse and I don't want to limit votes per IP address because some organisations (mine included) use shared IP addresses. I've never used sessions in a non-authenticated system before, but since this application is centered around entry votes I was wondering if this approach would work and whether there were any disadvantages such as performance implications, and whether it's even possible to use sessions in this way: start a session when the website is loaded allow one vote per item per session If this is a bad idea, my alternative options would be to allow a reasonable number of votes per IP address (say 25), or put a time limit between votes from the same IP address. What do you guys recommend?

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• Xcode custom project template creates only references to files

  - by user315374

  Hi, I tried to create a custom project template for setting up unit testing. The problem is that when i create a new project based on this template it creates references to the template files : When i edit a file, it changes my template files instead of my actual project files ! When i delete my template, files from my actual project becomes red ! The project template is in : /Developer/Platforms/iPhoneOS.platform/Developer/Library/Xcode/Project Templates/Application/Test-based Application Reading some question on stack overflow i tried to install my template project in /Library/Application Support/Developer/Shared/Xcode/Project Templates But i cannot see my template when i create a new project. Can anybody help ? Thanks, Vincent

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• Google Bot information?

  - by Bub Bradlee

  Does anyone know any more details about google's web-crawler (aka GoogleBot)? I was curious about what it was written in (I've made a few crawlers myself and am about to make another) and if it parses images and such. I'm assuming it does somewhere along the line, b/c the images in images.google.com are all resized. It also wouldn't surprise me if it was all written in Python and if they used all their own libraries for most everything, including html/image/pdf parsing. Maybe they don't though. Maybe it's all written in C/C++. Thanks in advance-

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• SVN Authentication and authorization

  - by vijay.shad

  Hi, I have created a multi module maven project. Now I have shared the project with a internal SVN repository. Now I want to give authorization to user based on the module user is owner of. So if a user does not have right to a project; he/she will not be able to checkout the project form svn repository. But he/she will get a source release(sources.jar file) form maven repository for that project; if wanted. What should i do go get this done? My svn reposiroty is created by TortoiseSVN 1.6.6.

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• Share data between usercontrols

  - by toraan

  On my page I have n-userControls (same control) I need to communicate between them(to be more specific I need to pass one in value) . I don't want to involve the hosting page for that. The controls acts as "pagers" and interact with the paged data on the hostin page via events that hosting page is subscribed to. So when user click on one of the pager and changes it's state, the other control should know about it and change itself accordingly. I can not use VieState because viewstate is per control and so is the controlstate. Can I use Session for that? (session is shared and there is only one value that i need to store) Or maybe there is something better I can use? (no QueryString)

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• How do I obtain a new stateful session bean in a servlet thread?

  - by FarmBoy

  I'm experimenting with EJB3 I would like to inject a stateful session bean into a servlet, so that each user that hits the servlet would obtain a new bean. Obviously, I can't let the bean be an instance variable for the servlet, as that will be shared. And apparantly injecting local variables isn't allowed. I can use the new operator to create a bean, but that doesn't seem the right approach. Is there a right way to do this? It seems like what I'm trying to do is fairly straightforward, after all, we would want each new customer to find an empty shopping cart.

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• How to read and modify the colorspace of an image in c#

  - by Matthias

  I'm loading a Bitmap from a jpg file. If the image is not 24bit RGB, I'd like to convert it. The conversion should be fairly fast. The images I'm loading are up to huge (9000*9000 pixel with a compressed size of 40-50MB). How can this be done? Btw: I don't want to use any external libraries if possible. But if you know of an open source utility class performing the most common imaging tasks, I'd be happy to hear about it. Thanks in advance.

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• Activities In Rational ClearCase

  - by kadaba

  Hello All, We are thinking of implementing Rational ClearQuest for Change Management and Defect tracking. When we integrate Rational ClearQuest and Rational ClearCase, the activities will be coming from the Rational ClearQuest. Now since the implementation of Rational ClearQuest will take time due to the process, we are thinking of removing the activity creation from the developer side. We are thinking of making the admin create the activities for each developer. Now I have a few concerns, If the admin creates the activities and changes the owner for the activity and the group using the protect command, Is it enough? Would this activity used by other developer too? Since activity is a work can this be shared? I need some clarity on this. Thanks.

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• Accelerometer API for Laptops

  - by FreshCode

  Most IBM (and some Dell) laptops have built-in accelerometers to stop any moving parts during a sudden fall, but I was unable to find a standardised Windows API to access this data. I assume that each manufacturer would provide a driver to interface with the sensor. Which popular laptop brands come standard with accelerometers accessible from an API and which libraries should I use to access the data? Does an API* exist to abstract away the differences between different manufacturers? I am aware of the Windows 7 Sensor API, but I would like support for XP and earlier.

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• jQuery global variable best practice & options?

  - by Kris Krause

  Currently I am working on a legacy web page that uses a ton of javascript, jquery, microsoft client javascript, and other libraries. The bottom line - I cannot rewrite the entire page from scratch as the business cannot justify it. So... it is what it is. Anyway, I need to pollute (I really tried not too) the global namespace with a variable. There are the three options I was thinking - Just store/retrieve it using a normal javascript declaration - var x = 0; Utilize jQuery to store/retrieve the value in a DOM tag - $("body").data("x", 0); Utilize a hidden form field, and set/retrieve the value with jQuery - $("whatever").data("x", 0); What does everyone think? Is there a better way? I looked at the existing pile of code and I do not believe the variable can be scoped in a function.

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• C# TraceSource class in multithreaded application

  - by matti

  msdn: "Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe." it contains only instance methods. How should I use it in a way that all activity gets recorder by TextWriterTraceListener to a text file. Is one static member which all threads use (by calling) TraceEvent-method safe. (I've kind of asked this question in http://stackoverflow.com/questions/1901086/how-to-instantiate-c-tracesources-to-log-multithreaded-asp-net-2-0-web-applica, but I cannot just believe if somebody just says it's OK despite the documentation).

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• Generating Javascript from PHP?

  - by Aristotle

  Are there any libraries or tools specifically designed to help PHP programmers write Javascript? Essentially, converting the PHP logic into Javascript logic. For instance: $document = new Document($html); $myFoo = $document->getElementById("foo"); $myFoo->value = "Hello World"; Being converted into the following output: var myFoo = document.getElementById("foo"); myFoo.value = "Hello World"; Of course it would be excellent if more complicated solutions could be derived too, perhaps converting objects and internal methods into javascript-objects, etc.

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• What file format contents starts with "URES"?

  - by Jordan

  I have a number of files that contain data in a format I am not familiar with. All of the data files begin with the same byte sequence, presumably a file header, and the sequence is "URES". I'm assuming that these files are some kind of resource file, perhaps a collection of data or other files all embedded into one file; that's just a guess however. Does anyone know what format this is/might be? If so, how would I interrogate the file? Are there applications that let me open these kind of files? Do you know of any libraries or APIs that I can use to gain programmatic access the data?

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• Subversion core on a sharedhosting

  - by voidnothings

  Hi! I've signed up for a shared hosting plan in bluehost and tried installing a subversion by following this instruction: bluehost forum svn install script all goes well at first even tried svnadmin create project_name and was a success but then when I traverse to project_name I got this error "svn: '.' is not a working copy" when I run svn info. I think I may have encountered an error on the compilation process, can't remember exactly but i think it has something to do with a ".so" file when I run the make && make install command , something about permission. Any help or suggestion is very much appreciated. Thanks!

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• Database independent row level security solution

  - by Filip

  Hi, does anybody knows about Java/C# database independent authorization library. This library should support read, write, delete, insert actions across company organizational structure. Something like this: - user can see all documents - user can enter new document assigned to his unit - user can change all documents assigned to his unit and all subordinate units. - user can delete documents that are assigned to him I should also be able to create custom actions (besides read, write,...) connect them to certain class and assign that "security token" to user (e.g. document.expire). If there aren't any either free or commercial libraries, is there a book that could be useful in implementing this functionality? Thanks.

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• What is inside Windows SDK?

  - by AKN

  For developing programs for windows, we need windows SDK. I understand that this SDK is what helps to create windows and handle window events and all that. I suppose it also enables us to manipulate with files and registries. (Does the same SDK is the reason for thread creation and handling?) All that is fine! I would like to know what are the files and libraries that come as a part of this SDK. Also does it come when I install the OS or when I install editors like Visual studio? Sometimes I see links to windows SDK separately as such. Is it same as the one that I get when installing Visual Studio or has something more than that.

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• Bypassing rack version error using Rails 2.3.5

  - by Matt

  I'm currently on Dreamhost attempting to run a Rails 2.3.5 app. Here is the situation, Dreamhost's servers have Rails 2.2.2 installed. Of course, I can't update a shared host's rails version, so I froze my Rails in vendor. Rails 2.3.5 requires the rack v1.0.1 gem. Dreamhost uses the rack v1.0.0 gem. So when I try to define: config.gem "rack", :version => "1.0.1" I get: can't activate rack (~> 1.0.1, runtime) for [], already activated rack-1.0.0 for [] So what I really need to do is bypass my app's request to use 1.0.1, and use Dreamhost's 1.0.0. Does anyone know how to configure this? Is it even possible? Thanks for the help.

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• ASP.NET MVC 2 - Account controller not found

  - by Chris

  Hi all, I've recently created an ASP.NET MVC 2 application, which works perfectly in the development environment. However, when I deploy it to the server (123-reg Premium Hosting), I can access all of the expected areas - except the Account controller (www.host.info/Account). This then attempts to redirect to the Error.aspx page (www.host.info/Shared/Error.aspx) which it cannot find. I've checked that all of the views have been published, and they're all in the correct place. It seems bizarre that two other controllers can be accessed with no problems, whereas the Account controller cannot be found. I have since renamed the AccountController to SecureController, and all of the dependencies, to no avail. The problem with not being able to find the Error.aspx page also occurs on the development environment. Any ideas would be greatly appreciated. Thanks, Chris

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