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• Using C# to read/write from excel spreadsheet.

  - by Aaron

  Hi there, I need to make a program that writes some data to an excel spreadsheet. Something basic along the lines of First name, last name, phone number, e-mail per row with each category in its own column. I don't even know where to start. If someone could tell me which assemblies to reference and maybe point me to a website or a book that covers writing/reading data from an excel spreadsheet via a c# program that would be great. Many thanks.

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• Fetch third party data and store in rails application variable

  - by mark

  Hi I need to do periodical background task fetching data from a weather site. How in rails can I fetch json from a remote url and store it on the server? Also, there doesn't seem to be any point in storing this in a db so how in rails can I store a variable available to all users?

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• ASP.NET Navgiate to section on page (help files)

  - by samcooper11

  I am writing a help page with sections - What I want to do is allow navigation to a particular section (depending on what page they clicked help from) rather always landing at the top of the page. My web app is written in ASP.NET, Can anyone point me in the direction of how to set this up? Thanks!

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• Trie vs B+ tree

  - by Fakrudeen

  How does Trie and B+ tree compare for indexing lexicographically sorted strings [on the order some billions]? It should support range queries as well. From perf. as well as implementation complexity point of view.

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• image url helper for sinatra?

  - by yaya3

  I'm looking for an image url helper for sinatra that allows me to do something similar to staticmatic's, where I can shortcut to a relative path like so... =img "me.jpg" Can anybody point me in the direction to where this might be online, or where I could learn how to write one, or provide an example of one they have already written Many thanks

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• Google Docs Drawings and IE

  - by Andrey

  Hello! I am wondering how does SVG work in IE with Google Docs Drawings? Is it flash? Could you please point me to the library they use to add SVG support to IE? Thanks!

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• Google Maps panTo AND setCenter

  - by Harry

  The default panTo only pans to the edge of the screen. I like setCenter but would like to pan to that point. Any ideas welcome map.setCenter(mymarker.getPoint()); GEvent.trigger(mymarker,"click"); //open the info window

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• Deploying Camping app with lighttpd/fastcgi

  - by zacsek

  I want to deploy a small Camping app using lighttpd & fastcgi, but I can't find a simple description of how to do it. Can someone point me to some example or how-to?

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• Longest realistic method name

  - by David Neale

  There's always a need to make method names as concise as possible but without getting too long and waffly. At what point is a method name far too long to possibly be justified?

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• Need to write a daemon in linux, not sure what to use C++ or C

  - by Bluescrod

  Hello everyone, I have a little problem picking the right language to write my daemon, I am confused between C and C++, I want to use C++ because it is more expanded than C, but I want to use C because it is the starting point of everything in linux, I want to go for C++ as I have many resources about it, so, does it make any difference if I pick C++ instead of C? and what I will have good if I learn C more? I feel like if I go into C++ I will cover C within C++... Regards

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• hiding file in address bar

  - by michael

  hi, i've created a php pagination system, but i want to hide the _GET variable in the address bar. atm mine looks like this http://address.com/images.php?page=1 but i've seen a few site that have http://address.com/images/1/. just wondering how they go about this? can anyone point me in the right direction, cheers

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• Paint app for iPhone

  - by Comma

  I would like to develop a MS paint like app for the iPhone. Could you guys point me to some sample or tutorials on this topic? I'm new to Objective C and Xcode. Thanks

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• How do you create domain.com/?stringhere without a .php extention

  - by matt

  I want to create a link like the following: http://www.myurl.com/?IDHERE What i want to be able to do is be able to goto the above link, and then pull whats after the ? (in this case IDHERE) and be able to use that information to perform a MySQL lookup and return a page. Can anyone point me into the right direction? please know this is using PHP not ASP

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• Is it better to store an NSArray of NSManagedObjects or NSManagedObjectIDs?

  - by Kevin

  In my application I need to keep track of a list of objects that are being displayed. Right now I have an NSArray with all of the NSManagedObjects. Would I be better off to store the ObjectIDs and then only request the object when I need it? I am mainly concerned about memory at this point.

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• Which is faster: in_array() or a bunch of expressions in PHP?

  - by Darryl Hein

  Is it faster to do the following: if ($var != 'test1' && $var != 'test2' && $var != 'test3' && $var != 'test4') { ... } Or: if (!in_array($var, array('test1', 'test2', 'test3', 'test4') { ... } Is there a number of values at which point it's faster to do one or the other? (In this case, the array used in the second option doesn't alreay exist.)

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• Choosing sound codec for network (c/c++)

  - by ergey

  Hi, I'am imnplementing real-time sound (voice) recording and transferring to another point in my application. I would ask who knows good codec or compression algorithm to transfer low-quality (max 32 kbit) sound data through the network. I know skype uses good compression, what codec use it? Thank you.

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• how to calculate power consumption on an Android mobile that uses wifi?

  - by Marco

  Hello, I have implemented a routing protocol on an Android 1.6 mobile that uses wireless (ad-hoc) network in order to exchange messages. Now I would like to evaluate it under an energy consumption point of view, the base would be to try to calculate the energy wasted to transmit a single packet, do anybody has any idea how to do that? Software/hardware solutions are welcome! Thanx :)

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• linked-list interview question

  - by giri

  Hi This was the question asked in interview.Can anybody help me out it in implementing in java Given 2 linked lists(which need not have unique elements) find intersection point in the form of Y.(it can be anywhere--middle or tail)

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• A nuts and bolts reference to C# performance and memory use

  - by phil

  I wonder if anyone could point me in the direction where I can read about the nuts and bolts of C#. What I'm interested in learning are method call costs, what it costs to create objects and such. My aim of learning this is to get a better understanding of how increase the performance of an application and get a better understanding of how the C# language works. The reference should preferable be a book, a book that I can read cover to cover.

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• iPhone: Where can I find those arrow icons used on the toolbar of the Photo Library (Camera Roll)

  - by Phamer

  Hello. I am looking for those arrow icons (a left white arrow and a white right arrow) that are used on the lower toolbar of the Photo Library (or Camera Roll). I also have seen them on the Facebook app and some other custom apps. I am surprised that they are not built in "UIBarButtonSystemItem" icons. Can anybody point me to these icons?

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• C#: String.IndexOf to FileStream.Seek

  - by pistacchio

  Hi, having a FileStream that I read with a StreamReader (it is a very large file), how can I set the Seek position of the FileStream to the first occurrence of a certain substring so that I can start reading this large file from a given point? Thanks

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• Call the official *Settings* app from my app on iPhone(Location Service)

  - by zt9788

  At one point in my app, I would like to redirect the user to the official Settings app. If possible, I also want go straight to the Location service section within the Settings app. i see Call the official *Settings* app from my app on iPhone but In iPhone4 the following code does not respond(my ios version 5.1.1): [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=LOCATION_SERVICES"]];//1 call Location service [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=WIFI"]];//2 //call wifi [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=General&path=Network"]];//3

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• Does java have a class that represents a timer?

  - by Eric

  I'd like a timer class that allows me to call: .start()   .getElapsedTime()   .stop()   .reset() Does Java have such a class, or do I need to use my own (which I've already written). From a best-practice point of view, I should use the Java class libraries classes if they exist, but I'm not sure whether this one does. Can anyone give me a link to the javadoc for this class, if it exists?

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• Permission denied for folder creation using background_fu

  - by Anubhaw

  Hi All, I am calling a controller method to convert a video file. This process is called using background_fu job. When the function tries to create a new folder in rails root it gives error i.e. Permission denied. The function performs well if not called in background job process. Can any one point out what can be the trouble. Thanks in advance, Anubhaw

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• How do I declare a pipe in a header file? (In C)

  - by Kyle

  I have an assignment in which I need to declare a pipe in a header file. I really have no idea how to do this. It might be a really stupid question and I might be missing something obvious. If you could point me in the right direction I would greatly appreciate it. Thanks for your time.

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