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• Session_End Alternatives

  - by grimus

  I have seen in some other questions that using Session_ End() in Global.asax.cs is not advised. This is because if you're not using the default Session handler, Session_End won't get called, correct? Is there any other cases where it won't get called? The big question is: If you can't depend on Session_End(), what do you do to determine when a session has closed?

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• What's the big deal with brute force on hashes like MD5

  - by Jan Kuboschek

  I just spent some time reading http://stackoverflow.com/questions/2768248/is-md5-really-that-bad (I highly recommend!). In it, it talks about hash collisions. Maybe I'm missing something here, but can't you just encrypt your password using, say, MD5 and then, say, SHA-1 (or any other, doesn't matter.) Wouldn't this increase the processing power required to brute-force the hash and reduce the possibility of collision?

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• C# How do I split a string by strings and include the delimiters?

  - by mafutrct

  There are many similar questions, but apparently no perfect match, that's why I'm asking. I'd like to split a random string (e.g. 123xx456yy789) by a list of string delimiters (e.g. xx, yy) and include the delimiters in the result (here: 123, xx, 456, yy, 789). Good performance is a nice bonus. Regex should be avoided, if possible.

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• Revision, Quadratic Time

  - by stan

  I am not sure if you can post revision programming questions in here but i am stuck with some algorithms revision If an algorithm is quadratic it takes time proportional to the number of n^2 ? So if the slides say its almost 1/2 the square of n records is this the same as saying (n^2 * 0.5) Thanks

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• Looking for trustworthy JPEG batch converter/resizer

  - by Simon_Weaver

  I have a batch of PNG files that I need to convert to JPEG. I'm looking for a free trustworthy utility that will give me the most optimal possible JPEGs. I've found some paid utilities and i HAVE Photoshop, but I want something dedicated that is made for the task and I dont want to accidentally download spy ware. I'm really surprised not to find this question already on StackOverflow, but please point me in the direction of any similar questions if they exist.

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• What's the toughest bug you ever found and fixed?

  - by Kimbo

  What made it hard to find? How did you track it down? Not close enough to close but see also http://stackoverflow.com/questions/175854/what-is-the-funniest-bug-youve-ever-experienced

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• How to save SMS to inbox in android programmatically and how to reqeust the correct permissions?

  - by Verena

  Found this question while trying to do the same: http://stackoverflow.com/questions/642076/how-to-save-sms-to-inbox-in-android-programmatically. But this part: getContentResolver().insert(Uri.parse("content://sms/sent"), values); throws an SecurityException. I requestet SMS_WRITE permission in the manifest file. Thanks in advance!

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• developing on a computer by remote desktoping into it, experiences?

  - by Blankman

  Hi, Does anyone (out of choice or forced) develop on a computer that they have to remote desktop into? How has your experiences been with it? I can see the advantages as you can basically code from anyplace in the world so long as you have a fast enough connection. Duplicate http://stackoverflow.com/questions/424869/reasons-to-use-a-vm-for-development

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• Looking for a simple CMS with WYSIWYG and image gallery

  - by abeger

  I'm building a new site that consists entirely of: 8-10 pages of static content that rarely changes (like once every few months or once every year) An image gallery Since I don't plan to be the primary maintainer of the site, I'd like to use a CMS with some security and a WYSIWYG editor so non-web-savvy people can tweak the site when necessary. I started out using Drupal, but started wondering if it was overkill. So, two questions: 1) is it overkill? 2) What CMS would you recommend for a project this simple?

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• Does setting HttpCacheability.Public also cache the page on the server?

  - by Stewart Robinson

  I have these lines in my global.asax (basically because of http://stackoverflow.com/questions/2469348/can-i-add-my-caching-lines-to-global-asax) The thing I want to now understand is whether this code purely adds the HTTP headers to the page or does it also make .Net cache this page on the server for 300 seconds? Response.Cache.SetExpires(DateTime.Now.AddSeconds(300)); Response.Cache.SetCacheability(HttpCacheability.Public);

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• How do I use python-webkit2png to take many screenshots at the same time?

  - by oldfellow

  I've got thousands of urls from many hosts I need to screenshot. I can use the lib fine from the command line, but how can I integrate it into my code so I can take multiple screenshots simultaneously? I think it's something to do with xvfb as with the answer to this question: http://stackoverflow.com/questions/1747022/how-to-kill-headless-x-server-started-via-python but I'm not sure what exactly.

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• Ignore deleted files in git?

  - by matthavener

  Is it possible to ignore deleted files in git? git update-index --assume-unchanged allows me to ignore modifications, but it still tracks deletions. (This is similar, but I couldn't find where "John Doe" restated his question: http://stackoverflow.com/questions/655243/ignore-modified-but-not-committed-files-in-git)

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• Finding existing tickets before opening new ones on trac

  - by Jens Jansson

  We're using Trac as the task management tool at the project we work in. However, Trac search is maybe not the most intuitive search out there, and we end up having multiple duplicates as the reporters can't effectively find if there already is a reported ticket of the question he or she found. Stack Overflow's "Related Questions" concept is great and works magnificently! I was wondering if someone has heard of some similar plugin to Trac, or if you have solved this problem some other way.

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• difference between C(gcc 4.3.2) , C 99 strict(gcc 4.3.2) , C++(gcc-4.0.0-8) ,C++(gcc-4.3.2)

  - by user1139048

  I have the following questions concerning the differences between the four options: What is the main difference between the four options? Which of the above support int64_t or long long without suffix LL. I want a data type of the range 2^63 - 1 If your answer to my second question is not C(gcc 4.3.2) , whether the code I write in C(gcc 4.3.2) for C language will be valid in rest of the three options or do I have to modify something, then what will be those modifications.

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• Project reference vs. DLL Reference - Which is better?

  - by Zannjaminderson

  I know there are other questions regarding this subject, and I've looked at this question, but I'd like to see a little bit more discussion and information on both sides of this - is it a better practice to add a project to a solution and reference the project, or to add a reference to the .dll?

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• C++ Why isn't call by reference needed for strcpy()

  - by Ribbs

  I have a homework assignment with a number of questions. One is asking why the strcpy() function doesn't need the call by reference operator for CStrings. I've looked through the book numerous times and I can't, for the life of me, find the answer. Can anyone help explain this to me? It is an array of sorts so I would think you would need the call by reference.

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• Why is there no middleware in Erlang?

  - by Zubair

  I asked a question earlier about ESBs written in Erlang or Java, and there didn't seem to be anything in Erlang, and only products in Java. http://stackoverflow.com/questions/2453641/what-would-be-the-best-language-in-which-to-write-an-esb/2453683#2453683 I guess I find it difficult to understand why a language like Erlang has no such middleware products, especially seeing as it should be ideally suited to the job.

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• Debug: How can i look at my browsers output?

  - by ironnailpiercethesky

  I have this question http://stackoverflow.com/questions/2688464/ajax-request-from-net-give-me-unexpected-results and i am using tamper data but i am sure firefox is formatting the data in ways i dont understand. Is there a tool i can use to check firefox post request? and perhaps my C# post request?

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• how to use Foreign key in L2E or EF when needs insert?

  - by 5YrsLaterDBA

  I know during the retrieve, I can use Include() to load related Entities (http://stackoverflow.com/questions/2632323/how-to-use-foreign-key-in-l2e-or-ef). but when I want to save or insert data, how to handle those reference Entities?

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• dereferencing the null pointer

  - by FredOverflow

  int* p = 0; int* q = &*p; Is this undefined behavior or not? I browsed some related questions, but this specific aspect didn't show up.

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• Is there a limit to the size of an application in the Android Marketplace?

  - by Trukdero

  I know from reading this: http://stackoverflow.com/questions/1230457/is-there-a-size-limit-for-ota-android-market-downloads/1232145#1232145 That there wasn't a limit to the size of an application that could be downloaded over the air (OTA) but I wonder if a limit, like that imposed by the Apple App Store (20MB) exists now that the Nexus one is running on AT&T's 3G network as of today. Thanks in advance for your help/ Truk

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• The fundamentals of Hash tables?

  - by kylex

  I'm quite confused about the basic concepts of a Hash table. If I were to code a hash how would I even begin? What is the difference between a Hash table and just a normal array? Basically if someone answered this question I think all my questions would be answered: If I had 100 randomly generated numbers (as keys), how would I implement a hash table and why would that be advantageous over an array? Psuedo-code or Java would be appreciated as a learning tool...

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• Sorting an array of structs

  - by keruilin

  I have an array of structs called leaders. The struct class looks like this, for contextual info: class Leader < Struct.new(:rank, :user); end Two questions: How do I sort the array of structs by rank? How do I sort the array of structs by rank and by user.created_at?

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• Flash Browser? Flash Server Side?

  - by Abs

  Hello all, I have two noobish questions about Flash, Actionscript, Flex etc. 1) With these technologies is it possible to create a simple web browser that can render websites? 2) Is it possible to run these technologies on the server side? I am guessing no as Flash requires a browser to run within? Thanks all for any help

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• MySQL Joining three tables

  - by text

  I am doing a query with three tables, the problem was one table has many occurrences of id of another. sample data: users: id answers: id:1 user_answer :1 id:1 user_answer :2 id:1 user_answer :3 Questions: id:1 answers :answer description id:2 answers :answer description id:3 answers :answer description How can I get all user information and all answer and its description, I used GROUP by user.id but it only returns only one answer. I want to return something like this list all of users answer: Name Q1 Q2 USERNAME ans1,ans2 ans1,ans2 comma separated description of answer here

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