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• jQuery - Drag of elements in areas - then not draggable any more

  - by Tim

  Hello! I have three div areas. Creating an element, which is draggable() with jQuery UI, I can drag it all over the screen. Dropping it in a special area, then I can not drag it any more. I created a full working demo: http://jsbin.com/enusu4/2/ There you can create a draggable element which is placed into the left green area. Dragging it to the middle or right green area, I can not drag the element. I increment the zIndex of the elements, but it does not work. Does anyone can help me, what's wrong? Best Regards.

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• How to save an animated image to iPhone's photos album?

  - by OpenThread

  I created an animated image, and it animates properly in an UIImageView: - (void)viewDidLoad { [super viewDidLoad]; UIImage *image1 = [UIImage imageNamed:@"apress_logo"]; UIImage *image2 = [UIImage imageNamed:@"Icon"]; UIImage *animationImage = [UIImage animatedImageWithImages:[NSArray arrayWithObjects:image1, image2, nil] duration:0.5]; UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(100, 100, 100, 100)]; imageView.image = animationImage; [self.view addSubview:imageView]; } But if saved to photos album, it couldn't animate agian: UIImageWriteToSavedPhotosAlbum(animationImage, self, @selector(imageSavedToPhotosAlbum:didFinishSavingWithError:contextInfo:), nil); So is there any solution to save an animated image to photos album? Special thanks!

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• How can I search for the dot character using the search command?

  - by lk

  I'm trying to use the Search command in Vim: :Rs/F/T/X R = range F = text to find T = text to replace with X = options But, when I want to search for the "." (dot character) I'm getting some problems. The task: Replace all occurences of " ." (space dot) for "" (greater-than) So, first I tried this: :%s/ ./>/g But this changed me all the " ." (space ANY-CHARACTER) to the "" character. Then I remembered that the dot character is a special one, so I tried this: :%s/ \./>/g But vim threw me an error: E486 Can't find pattern " \." And finally I tried this crazy thing: :%s/" ."/>/g and this :%s/" \."/>/g But I got the same result: E486 Can't find pattern... So, how can I search for the dot character using the search command? PS: Sorry for my poor Enlish.

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• How to escape $ in php using preg_replace ?

  - by sakura

  Hi, I am using preg_replace to escape special characters... $tmpStr=preg_replace("/\?/", "\?", $tmpStr); $tmpStr=preg_replace("/\#/", "\#", $tmpStr); $tmpStr=preg_replace("/\^/", "\^", $tmpStr); $tmpStr=preg_replace("/\&/", "\&", $tmpStr); $tmpStr=preg_replace("/\*/", "\*", $tmpStr); $tmpStr=preg_replace("/\(/", "\(", $tmpStr); $tmpStr=preg_replace("/\)/", "\)", $tmpStr); $tmpStr=preg_replace("/\//", "\/", $tmpStr); but i am not able to escape $ using the same function $tmpStr=preg_replace("/\$/", "\$", $tmpStr); and also when i use the above statement all the spaces get replaced by $ and $ is not getting escaped....someone please help me with this....

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• Basics of html5 and canvas

  - by René Nyffenegger

  As I browse through different questions here, I see that there are a number of questions tagged with html5 and canvas, so I guess they sort of belong together. Now, I have absolutely no idea about the canvas (which is obviously (?) rendered in html5), but it seems that It could be useful one day in the future. So, in order to be prepared when that day comes, I'd like to know the basics about these things. I found a html snippet that is supposed to render such a canvas, but when opened in my browser (firefox) nothing is displayed. So, I guess I need a special plugin or another browser. My question: what are the absolute basic things I need to know and have in order to create a hello world thingy. Please bear in mind that I am completely new with this and don't need no fancy advanced stuff.

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• Angularjs code/naming conventions

  - by Dalorzo

  Does anyone know if exists any official or most accepted reference for Angular naming conventions to use when we build our applications? Angular has a lot of different type of components such as filters, directives, services and so on. Wouldn't you agree that having a reference naming convention when we implement them in our applications will make sense? For example: If we need to create new filters how should we name them like [Something]Filter or filter[Something] or something else? And same applies for Controllers, Services, Directives and so on. Other things I wonder about is if variables/functions that belongs to the scope should have an special prefix or suffix. In some situations it may be useful to have a way to differentiate them from functions and other (none angular code).

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• Problem when exiting search in iPhone

  - by camilo

  Hi. I have a search display controller, and it is searching well. I'm searching in a table with several sections and I have a viewForHeaderInSection function working as it's supposed to. When I start searching, my numberOfSectionsForTableView returns 1, and I have a special view saying "Search Results" wich I use in self.searchDisplayController.searchResultsTableView. The problem happens when I select a row in my searchResultsTableView: I change the view, and when I return and try to exit the searchDisplayController (by pressing the CancelButton), the tables change nice, but changing the viewforHeader for my first section is not "pretty". I have a "kind-of-click" anymation. I would like it to not be so noticeable for the user, having a more "fluid" change. Anybody had the same problem and knows how to solve it? In a different question (which would work as a workaround): how can I hide the keyboard while searching without pressing the Cancel or Search buttons? Thanks a lot!

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• Disabling identity (auto-incrementing) on integer primary key using code first

  - by gw0

  I am using code first approach in a ASP.NET MVC 3 application and all integer primary keys in models (public int Id { get; set; }) are by default configured as an identity with auto-incrementing. How to disable this and enable a way to manually enter the integer for the primary key? The actual situation is that the Id integers have a special meaning and I would therefore like to have them choosable at creation and later editable. It would be ideal if in case the integer is not given at creation time it is auto-incremented, else the specified value is used. But editable primary fields is my primary need. Is there any way to do this elegantly in ASP.NET MVC 3?

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• Template Match and document

  - by Christophe Debove

  Can I do something like that to display the value of the node? <!-- plop.xml : --> <?xml version="1.0"?> <root> <node1>hello</node1> </root> <xsl:template name="my_template" match="document('plop.xml')/root" > <xsl:value-of select="node1"/> </xsl:template> <xsl:call-template name="my_template"></xsl:call-template> I want to create special template that will only affect one xml. I work on asp .net 2.0 C# XslCompiledTransform processor.

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• Friendness and derived class

  - by ereOn

  Hi, Let's say I have the following class hierarchy: class Base { protected: virtual void foo() = 0; friend class Other; }; class Derived : public Base { protected: void foo() { /* Some implementation */ }; }; class Other { public: void bar() { Derived* a = new Derived(); a->foo(); // Compiler error: foo() is protected within this context }; }; I guess I could change it too a->Base::foo() but since foo() is pure virtual in the Base class, the call will result in calling Derived::foo() anyway. However, the compiler seems to refuse a->foo(). I guess it is logical, but I can't really understand why. Am I missing something ? Can't (shouldn't) it handle this special case ? Thank you.

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• Bash intercepting wildcard in script

  - by MrRoth

  I am using Bash script to read line by line from a text file, which has special characters in it (regular expression). When I use echo "${SOME_VAR}" it does not display the text as is. I am familiar with Prevent * to be expanded in the bash script. How can I display and use the text as is? UPDATE The text (TSV) file holds tuples similar to (the last entry is a psql query) bathroom bathroom select name from photos where name ~* '\mbathroom((s)?|(''s)?)\M'; I am reading the CSV as follows: tail -n+2 text.file | while IFS=$'\t' read x y z do echo "${z}" done which gives the output select name from photos where name ~* 'mbathroom((s)?|(''s)?)M'); note that the '\' is missing

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• how can I enter character "<" in strings.xml?

  - by yrajabi

  I want to enter string " -< " in strings.xml file, the string has character < and I couldn't add it to xml file without error! I even tried to escaping by \ character: <string name="search_target_arrow"> -\< </string> or enclosing it between "" as below: <string name="search_target_arrow">" -< "</string> but none worked. Maybe I'm very amateur at this and the answer is not hard for you. so please tell me how you add such special chars in strings.xml?

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• regular expression for validation not working

  - by Camran

  I have a "description textarea" inside a form where user may enter a description for an item. This is validated with javascript before the form beeing submitted. One of the validation-steps is this: else if (!fld.value.match(desExp)){ And desExp: var desExp = /^\s*(\w[^\w]*){3}.*$/gm; Now my problem, this works fine on all cases except for descriptions where the description BEGINS with a special character of the swedish language (å, ä, ö). This wont work: åäö hello world But this will: hello world åäö Any fixes? Thanks

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• Is it possible to obtain ASP.NET membership user name after FormsAuth.SignIn ?

  - by Simon_Weaver

  I have some code that is accessing Membership.GetUser() to get the current logged in user. This works fine until I try to access it immediately after logging in with FormsAuth.SignIn(userName, false); However I noticed that neither Membership.GetUser() nor User.Identity.Name is updated with the newly logged in user until a new request (I assume its reading directly from the Request cookies). This however kind of screws up my logic that accesses Membership.GetUser() becasue it introduces a special case. Question: is there a way to read the current logged in user with ASP.NET membership immediately after logging in. Or will I have to introduce my own abstraction layer to allow me to 'set' a user as being logged in ? (This is in an AJAX request - so i'd rather not do a redirect).

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• CSS+HTML: tds are overlapping

  - by Budda

  On my web-site http://vfm-elita.com (it is not in English, sorry for that) - center and right columns are overlapping, please see screenshot for details: Between left and center columns you can see a "gap" with a green background - it is expected and good. But there are no any gap between center and right columns, instead they are overlapping. Issue exists in all known browsers There are no special formatting applied to columns. They are usual 'TD' columns, the only CSS modifier is width that is "250px" for left and right columns, and for center - it is "auto". Please advise how can I correct that error. Thanks a lot!

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• how does [<Literal>] differ from other constants in F#

  - by Mitzh

  I am a bit confused by the Literal keyword and why it is necessary in F#. Reading the docs, it sounds to me that [<Literal>] is used to define a constant, however I am a bit confused how this constant differs from all other constants in F#.. Values that are intended to be constants can be marked with the Literal attribute. This attribute has the effect of causing a value to be compiled as a constant. When I think of a constant, I think of something which is immutable.... let x = "a" + "b" //this is a immutable value, its value is constant [<Literal>] let y = "a" + "b" //this is also a immutable value, but why is this a special constant? Is it because the 'normal' F# values are evaluated lazily and the [<Literal>] is not evaluated lazily..? is that what they mean with 'compiled as constant'..? or is there something else to it?

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• wordpress plugin for certain tweets

  - by darreee

  Hello I would need to get tweets from my twitter account on my wordpress site. Okey, the basics i could do, but there is one special need. I would need to get only certain tweets. Tweets that have some #hashstag for example only tweets with hashtag #myss would show up on my wordpress site. Is there ready made plugin for this? I have been googlein for hours but have found only basic/normal twitter plugins. Also i would need to able style the feed to look same as my current site. Cheers!

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• How should I best store these files?

  - by Triton Man

  I have a set of image files, they are generally very small, between 5k and 100k. They can be any size though, upwards of 50mb but this is very rare. When these images are put into the system they are not ever modified. There is about 50 TB of these images total. They are currently chunked and stored in BLOBs in Oracle, but we want to change this since it requires special software to extract them. These images are access sometimes at a rate of over 100 requests per second among about 10 servers. I'm thinking about Hadoop or Cassandra, but I really don't know which would be best or how best to index them.

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• Looking for an approach to program a mobile website for any device. Are there any?

  - by ChrisBenyamin

  My wish is to know how I can program a mobile website, that fit to all mobile phones. Are there any special approaches to recognize a device and render the code according to it? Which tools and coding languages are required? My first thought was to hold the website in XML, which would be parsed depending on the device. You have to consider old phones, even devices with only wap support. For example: The mobile website has to recognize Nokia N75 and render/send the code that looks optimal for this device. Same thing with an iPhone or a Motorola Razr.

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• Where should I handle the exceptions, in the BLL, DAL or PL ?

  - by Puneet Dudeja

  Which is the best place to handle the exceptions ? BLL, DAL or PL ? Should I allow the methods in the DAL and BLL to throw the exceptions up the chain and let the PL handle them? or should I handle them at the BLL ? e.g If I have a method in my DAL that issues "ExecuteNonQuery" and updates some records, and due to one or more reason, 0 rows are affected. Now, how should I let my PL know that whether an exception happened or there really was no rows matched to the condition. Should I use "try catch" in my PL code and let it know through an exception, or should I handle the exception at DAL and return some special code like (-1) to let the PL differentiate between the (exception) and (no rows matched condition i.e. zero rows affected) ?

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• Why is MenuItem.AdapterContextMenuInfo null when my list view has a custom adapter?

  - by gregm

  My question: Before I go and use an OnLongClickListener, is there a better way to pass the "what was clicked to create this context menu" information when your list view has a custom adapter? Here are some details: Normally, my code can just do something like this: public boolean onContextItemSelected(MenuItem item) { AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo(); and then go on and be happy. However, ever since I introduced a custom adapter, item.getMenuInfo() is null. This is a big problem, because my code no longer knows which item was clicked. (My custom Adapter makes each list row a checkbox and a text view) I tried this but failed: Created my own special AdapterContextMenuInfo (called "HasAViewMenuInfo"), but when I pass it in this method, it ends up being null in the menu public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { super.onCreateContextMenu(menu, v, new HasAViewMenuInfo(v));

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• Java: Is it possible to take a GUI Panel and output it into a picture?

  - by user369748

  So I have this chart that's a little special. Kind of like an XY plot of points but my boss wanted to look like a bunch of boxes rather than dots connected by lines. And I basically made a chart using gridlayout and a whole bunch of cells that I'll be colouring in black or white depending on the data. Now he sorta wants it to be outputted to a image file. Is there any way to save a Panel into a picture? He wants to display not only the data but also save a visual representation of the data into an image file.

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• How to add an audio filter to AudioRecord (on Android)?

  - by Jim

  I would like to write a "daemon" application that will add a special audio filter (e.g. audio enhancement) to AudioRecord. The result should be as follows: Whenever any VoIP application (e.g. Skype,...) will create an AudioRecord, the captured audio will be first filtered using my daemon application before it reaches Skype. Is this doable ? For example can I use an AudioSessionID=0 to attach my filter to all the input channels ?

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• sql - duplicates

  - by Sebastjan

  Hey guys I'm putting data from website (json) to sql base. In db i have these rows. ID | PostId | Name | Message Id is auto-increment primary key. PostId also has a unique values. Name and Message are nothing special. When I run my script / click on the button in form / ... , the program saves all the values into database (lets say there are 25). Next time I'm going to press the button there will be added 25 more records (all duplicates), and so on... Is there a way that the program can check through 'PostIds' if the value already exists before adding it to the db? Thanks

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• MySQL features I can rely on being available

  - by xrstf

  So I'm developing a PHP/MySQL based CMS which requires PHP 5.1 and MySQL 5.0 (with InnoDB support) at least. I'm now wondering what features of MySQL I can safely use without noticing one day that "Oh, well, that crappy hoster has disabled feature X, damn, now I'm screwed." So my question is, which of these features can become problematic (= can be disabled, require special configuration, require user privilege): transactions and FKs in InnoDB (of course unavailable to MyISAM) table locking (MyISAM and InnoDB) stored procedures I just want to know once and for all what's the minimal feature set I can expect from MySQL.

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