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• viewWillAppear for subviews

  - by nan

  I have UIScrollView with multiple UIVIew subviews. I would like to update the data that is displayed by each UIView when they appear in the visible portion of the UIScrollView. What is the callback that gets triggered? I tried viewWillAppear, but it does not seem to get called. Thanks. :)

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• Validation - Data Integrity

  - by Thomas

  A table can only store 10 records in a particular state, 10 users over 30 years for example, the others must be less than 30 years. It is a business rule and as such should be respected. How to ensure that state? Think: multiple users accessing this table.

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• How to make nested child forms in C#.net

  - by abu

  In my windows form application I am using 10 forms.It is fine when only a parent and single child form are used at a time. But in case of multiple use of child form I am getting problem and not able to use them as child forms.They are not working as child form. Your any effort would be helpful for me. Thanking You In Advance

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• Is it possible to determine whose code (according to `git blame`) was affected by each hunk output by `git diff`?

  - by Ben

  I have a large cross-cutting commit that I would like to split up according to the authors whose code was affected, both to increase the reviewers' familiarity with the code they're reviewing, and to divide the review burden equitably. I realize that the blame may be mixed within a given hunk, in which case it would be nice to either collect multiple reviewers or just choose the most "blameworthy" one (breaking ties arbitrarily is fine).

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• SQL Server: Deleting Rows with Foreign Key Constraints: Can Transactions override the constraints?

  - by Mark Redman

  I have a few tables where Foreign Key constraints are added. These are used with code generation to set up specific joins in generated stored procedures. Is it possible to override these constraints by calling multiple deletes within a transaction, specifically "TransactionScope" in C# or is cascaded deleting absolutely required?

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• How to rip specific data from an HTML file?

  - by SnirD

  Hi, so I have multiple HTML files which I need to get some praticular data from, I mean theres a bunch of non relative information in this HTML files, but I need just lets say things that are between the <div class="myInfo"> and </div>, after getting this information I want to handle it in my own PHP page, so for example I can insert this data into some variables. Is it even possible using PHP only? (Forgive me for my English mistakes)

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• Externalize BIRT queries

  - by shikarishambu

  Hi, Is there a way to externalize report queries for BIRT reports. We need to support multiple database engines and so our queries are different depending on the underlying database. I would like to use a config parameter to tell BIRT report to use a specific query file

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• Flexible array member in C-structure

  - by Arpan

  Quoting from the C-std section 6.7.2.1, struct s { int n; double d[]; }; This is a valid structure declaration. I am looking for some practical use of this kind of syntax. To be precise, how is this construct any more or less powerful than keeping a double* as the 2nd element? Or is this another case of 'you-can-do-it-in-multiple-ways'? Arpan

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• Error with characters in a html iframe

  - by dinero beta

  excuse my English I speak Spanish I'm trying to display multiple php and mysql registration, after that the show in an iframe the problem is that apparently in the iframe shows me errors accents and other characters for example: for example (?D?nde cuesta menos y se consume m?s?") this is what shows (?) In the original query or first does not show me that, but in the iframe shows me that error and probe with http-equiv = "content-type" and I worked What else I can do? What should I do? regards

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• SQL Server Maximum row size

  - by DannySmurf

  Came across this error today. Wondering if anyone can tell me what it means: Cannot sort a row of size 9522, which is greater than the allowable maximum of 8094. Is that 8094 bytes? Characters? Fields? Is this a problem joining multiple tables that are exceeding some limit?

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• Writing a file shredder in python or ruby?

  - by pmilb21

  In the effort to learn python and/or ruby, I was wondering how a file shredder would be implemented? I would like it to take in a file as an argument and then employ an algorithm to make that file unrecoverable. Would possibly add the support for multiple files or even whole directories later.

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• nonatomic property in model class when using NSOperationQueue (iPhone)?

  - by Andrew B.

  I have a custom model class with an NSMutableData ivar that will be accessed by custom NSOperation subclasses (using an NSOperationQueue). I think I can guarantee thread-safe access to the ivar from multiple NSOperations by using dependencies, and I can guarantee that I don't access the ivar from other code (say my main app thread) by waiting until the Q has finished all operations. Should I use a nonatomic property specification, or leave it atomic? Is there a significant impact on performance?

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• Is it possible for select lists in HTML to have a horizontal scrollbar?

  - by Alessandro Vernet

  If you have an HTML <select multiple> of a certain width and height (set in CSS), if there are more values then you can possibly fit in that height, then the browser adds a vertical scroll bar. Now if the text is longer than the available width, is it possible to instruct the browser to add a horizontal scrollbar?

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• How to select all anchor tags with specific text

  - by geoff

  Given multiple anchor tags: <a class="myclass" href="...">My Text</a> How do I select the anchors matching the class and with some specific text. eg Select all anchors with the class:'myclass' and text:'My Text'

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• 'goto' usage

  - by Landon

  I've long been under the impression that 'goto' should never be used if possible. While perusing libavcodec (which is written in C) the other day, I noticed multiple uses of it. Is it ever advantageous to use 'goto' in a language that supports loops and functions? If so, why?

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• How do I programmatically convert/merge any doc to PDF in my .NET application?

  - by Kalki

  Please recommend a good library to: 1)Programmatically convert any doc to pdf (word, spreadsheet, presentation, images, html, postscript) 2)Programmatically merge multiple pdf’s to a single pdf (ideally, word_doc1+ ppt_doc2 = out.pdf , in one step) From .NET/c# app Thanks

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• Is it possible to style individual tab bars ?

  - by yan bellavance

  I would like to style individual tabs of the tab bar of a QTabWidget (not hover or current but an individual one) WHY? because I need to get the user's attention so that he knows urgent information appeared in that tab. There can be multiple tabs that need attention.

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• How to get only one record for each duplicate rows of the id in oracle?

  - by Psychocryo

  suppose i have this table: group_id | image | image_id | ----------------------------- 23 blob 1 23 blob 2 23 blob 3 21 blob 4 21 blob 5 25 blob 6 25 blob 7 how to get results of only 1 of each group id? in this case,there may be multiple images for one group id, i just want one result of each group_id i tried distinct but i will only get group_id. max for image also would not work.

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• Play an AudioBufferSourceNode twice?

  - by alltom

  Should I be able to use the same AudioBufferSourceNode to play a sound multiple times? For some reason, calling noteGrainOn a second time doesn't play audio, even with an intervening noteOff. This code only plays the sound once: var node = audioContext.createBufferSource() node.buffer = audioBuffer node.connect(audioContext.destination) var now = audioContext.currentTime node.noteGrainOn(now, 0, 2) node.noteOff(now + 2) node.noteGrainOn(now + 3, 0, 2) node.noteOff(now + 5)

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• How to use Javascript to popup a new window with NEARLY the same html as its parent window

  - by Ethan

  I want to create multiple versions of print-friendly pages from a single page. I am considering to do it in this way: placing several buttons on the original page and, clicking one button will popup a new window with the same html as its parent window, but with some modifications (e.g., set display attribute of some DIV's to none). It is possible to use javascript to do this?

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• Design pattern suggestion

  - by Avinash

  Following is the problem statement. There are n numbers of match strings, If event A occurs and then in certain period of time event B occurs then I do not raise alarm. but if B do not occurs then i have to raise alarm. There can be multiple chain of events which defines whether to raise alarm or not.

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• How can I configure Devise for Ruby on Rails to store the emails and passwords somewhere other than in the user model?

  - by TLK

  I'd like to store emails in a separate table and allow users to save multiple emails and log in with any of them. I'd also like to store passwords in a different table. How can I configure Devise to store authentication info elsewhere? Worst case scenario, if I just have to hack into it, is there a generator to just port everything over to the app? I noticed there was a generator for the views. Thanks.

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• boost.threads Singleton initialization

  - by aaa

  hello. Is there preferred way to initialize (lazily) singleton data when using multiple threads from boost.threads? Thanks.

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• Anyone know which image uploader facebook uses?

  - by Max Fraser

  Want to add a nice multiple image upload feature to a site so I figured use one that most people already know. This is a .Net MVC App Anyone know what Facebook uses? If not, then does anyone know of one that is similar?

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• proper way to use list to array?

  - by cometta

  public class TestClass{ private String divisions[] ={}; public void doAction(){ Collection testArray = new ArrayList(); // put testArray will data divisions = (String [] ) testArray.toArray(division); //should i use this divisions = (String [] ) testArray.toArray(new String [] {}); //should i use this? } } if i use case 1, and i call doaction multiple time, the division, something will show wrong records if i use case2, divisions will always show the correct records. is my assumption should use case 2?

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