Search Results

Search found 21331 results on 854 pages for 'require once'.

Page 599/854 | < Previous Page | 595 596 597 598 599 600 601 602 603 604 605 606  | Next Page >

• Problems with the Enterframe Event

  - by user434565

  Hey guys, I have been developing a game using Flex, and used the Timer class to keep the main loop going. However, when I tried using the enterFrame event to do the main loop, there were a few problems. First of all, physics simulation seemed way too fast. Is the enterFrame event called more than once per frame? I set the application's global frame rate to 24, so shouldn't the application set off the event every 1/24 of a second? And the second problem is that when the game runs like this, some MXML components that are added are not shown. I have absolutely no idea why this happens. Help me please?!? Thanks.

  Read the article

• .NET DB Query Without Allocations?

  - by Michael Covelli

  I have been given the task of re-writing some libraries written in C# so that there are no allocations once startup is completed. I just got to one project that does some DB queries over an OdbcConnection every 30 seconds. I've always just used .ExecuteReader() which creates an OdbcDataReader. Is there any pattern (like the SocketAsyncEventArgs socket pattern) that lets you re-use your own OdbcDataReader? Or some other clever way to avoid allocations? I haven't bothered to learn LINQ since all the dbs at work are Oracle based and the last I checked, there was no official Linq To Oracle provider. But if there's a way to do this in Linq, I could use one of the third-party ones.

  Read the article

• jQuery Nested Droppables

  - by John

  I have a nested set of jQuery droppables...one outer droppable that encompasses most of the page and an a set of nested inner droppables on the page. The functionality I want is: If a draggable is dropped outside of any of the inner droppables it should be accepted by the outer droppable. If a draggable is dropped onto any of the inner droppables it should NOT be accepted by the outer droppable, regardless of whether the inner droppable accepts the draggable. So that would be easy if I could guarantee 1+ inner droppables would accept the draggable, because the greedy attribute would make sure it would only get triggered once. Unfortunately the majority of the time the inner droppable will also reject the draggable, meaning the greedy option doesn't really help. Summary: The basic functionality is a set of valid/invalid inner droppables to accept the draggable, but when you toss the draggable outside any of the draggables it gets destroyed by the outer droppable. What's the best way of doing this?

  Read the article

• EXC_BAD_ACCESS iPhone Development

  - by gkres121

  Sorry, this could be a simple fix, as I am new to iPhone Development. In my Delegate, after pressing the create profile button, the create profile view is pushed: -(void) createProfile_clicked:(id)sender { AddNewProfile *create = [[AddNewProfile alloc] init]; [self.window addSubview:create.view]; [self invisibleCreateProfileBar]; AddNewProfile *controller = [[AddNewProfile alloc] initWithNibName:@"AddNewProfile" bundle:[NSBundle mainBundle]]; [ self.navigationController pushViewController:controller animated:YES ]; currentController=controller; } Then in the AddNewProfile.m: - (IBAction)backgroundTap:(id)sender { if([nameField isFirstResponder]){ [nameField resignFirstResponder]; } if([ageField isFirstResponder]){ [ageField resignFirstResponder]; } if([doctorNameField isFirstResponder]){ [doctorNameField isFirstResponder]; } if([doctorNumberField isFirstResponder]){ [doctorNumberField resignFirstResponder]; } } This leads to a exc_bad_access error every time the FirstResponder is ever messed with, with any of my controls. I can select a control(text box), but once I click out of one, it crashes. Any help would be greatly appreciated.

  Read the article

• Why does the compiler complain "while expected" when I try to add more code?

  - by user1893578

  Write a program with a word containing @ character as an input. If the word doesn't contain @, it should prompt the user for a word with @. Once a word with @ is read, it should output the word then terminate. This is what I have done so far: public class find { public static void main(String[] args) { System.out.println(" Please enter a word with @ "); Scanner scan = new Scanner(System.in); String bad = "@"; String word = scan.next(); do if (!word.contains(bad)) System.out.println(" Please try again "); else System.out.println(" " + word); while (!word.contains(bad)); } } I can get it to terminate after a word containing "@" is given as input, but if I try to add a Scanner to the line after "please try again", it says while expected.

  Read the article

• How to re-open a closed file descriptor

  - by chaitu

  I have a scenario where i created pipe for communication between two child and parent. Parent writes (using write function)data to the pipe and closes the respective file descriptor. The problem is when i want to write data again to the pipe, the write function is returning error code -1. I think its because writing end has been closed in previous iteration. Then how to open the corresponding file descriptor after it has been closed once. I tried using open() function which requires path to some file as arguement. But i am not using any files in my application. I have simple file descriptors (int arr[2]). Is it possible to achieve above scenario with pipes????

  Read the article

• Chrome/IE table cell positioning help

  - by Checksum

  I am making a tiny script to make a HTML element editable. When you click on an element, it gets replaced with a textarea, and you can basically enter the new text. When you press enter, the textarea is replaced with the original element with its innerHTML updated. The demo of the script is here: http://iambot.net/demo/editable/ Now the problem is with the inline table editing. It works perfectly on FF 3.6, but on Chrome/Safari, once the value of a cell is updated, the position of the updated cell shifts to the right by the width of a cell.(Just try the demo in Chrome/Safari) It totally messes up the whole table. I am a beginner in CSS and not able to identify where exactly I'm going wrong. Any help/pointers appreciated! Thanks.

  Read the article

• Is there any reason I shouldn't do database calls from the destructor?

  - by ryeguy

  I want to create a sort of datamapper library, where you'd do something like this: $users = Users::getTable(); $users->add($newUser1); $users->add($newUser2); Now $users contains 2 user records, but they aren't yet persisted to the database. To be efficient, I'd like to flush them all at once. I would like to have a flush() method to do this (not an issue), but I'd also like for it to happen implicitly when the $users table reference falls out of scope. Is there any reason I shouldn't do this in the destructor?

  Read the article

• Implemention of scattering in this paper

  - by pelb

  Hi, For some time I tried implementing the scattering model described in this paper: Salama Paper The BRDF part of this paper is pretty clear and straightforward. Where I am hanging is the scattering part. When scattering at the first hitpoint once only, I'm just not getting the same results as proposed by the images in the very same paper. Of course I'm scattering multiply rays inside the proposed scattering cone and averaging the results of the different rays. Does anyone have more or less concrete ideas on the implementation of this nice and beautiful illustrative rendering method. I am glad and thankful for any hints.

  Read the article

• Slide Effect happening too many times

  - by Abs

  Hello all, I call this functions on onmouseover and onmouseout for several divs. //Takes effect on divs with id, 62,63,64,65... function slide_it(id){ $('#options_'+id).slideToggle('slow'); } The problem is that if I move my mouse over and then mouse out, then again, mouse over and then mouse out. If I do this several times, the slide effect happens the same number of times I moved my mouse over and out of the div, as expected. But I can't figure out how I can do this once? I can set a variable, but I have several divs that this function is used by and I can't think of a simple way of doing this rather than storing things into an array, but this is messy! I really appreciate any help on this that is simple to implement! Thanks all for any help

  Read the article

• appending and reading text file

  - by Rod

  Environment: Any .Net Framework welcomed. I have a log file that gets written to 24/7. I am trying to create an application that will read the log file and process the data. What's the best way to read the log file efficiently? I imagine monitoring the file with something like FileSystemWatcher. But how do I make sure I don't read the same data once it's been processed by my application? Or say the application aborts for some unknown reason, how would it pick up where it left off last? There's usually a header and footer around the payload that's in the log file. Maybe an id field in the content as well. Not sure yet though about the id field being there. I also imagined maybe saving the lines read count somewhere to maybe use that as bookmark.

  Read the article

• Android ratings and listviews

  - by puppetmaster04

  I'd like to add a list of reviews of books to my Android app. Basically what I'm after is a fixed rating using the RatingBar and a ListView containing the snippet of the review for each review. Once clicked I want the list item to expand and fill with the text of the full review. I have the content of the snippet, full text, and rating, but don't know how best to go about the layout. Any ideas are ok, I don't need full code, but I would much prefer to keep it to XML layout.

  Read the article

• how to format (css) data loaded with $.load or $.get or $.ajax?

  - by user356981

  I need to load a piece of content html when an link in a menu is clicked; once loaded, the css format is not working properly, how do I re-format (re-styling via css) the loaded code? My code is: $('a', mainMenu).click(function() { ref = this.href; $('#content').load(ref + ' #content' function() { url = '../css/jquery-ui-1.8.2.custom.css'; //styling here if (document.createStyleSheet) document.createStyleSheet(url); else $('<link rel="stylesheet" type="text/css" href="'+url+'"/>').appendTo('head'); }); }) is it another way to load and re-style html (plugins perhaps)? thanks in adv'n.

  Read the article

• list boxes(A,B) with some duplicate values

  - by Dev

  I have two list boxes(A,B) with some duplicate values and i can send values from A to B or B to A using send button and i have one save button. For the first time without sending any list box if i click on save button i am showing message like "NO changes or Done" But once i send one item from A to B and again sending that same item from B to A it means no changes or Done. here also i want to show same message "NO changes or Done" .but i am unable to find the staus can any one pleasse give code or tips to find the default status for listboxs in javascript. Thanks

  Read the article

• Reading from CSVs in Python repeatedly?

  - by matt

  I'm trying to check the value of extracted data against a csv I already have. It will only loop through the rows of the CSV once, I can only check one value of feed.items(). Is there a value I need to reset somewhere? Is there a better/more efficient way to do this? Thanks. orig = csv.reader(open("googlel.csv", "rb"), delimiter = ';') goodrows = [] for feed in gotfeeds: for link,comments in feed.items(): for row in orig: print link if link in row[1]: row.append(comments) goodrows.append(row)

  Read the article

• How to turn one server into many servers? (Virtualization/VMWare)

  - by user1229962

  I'm hoping for a high level discussion of this problem I know is quickly approaching my application. I have a server that binds on a specific port and manages TCP Sockets from my clients. I know that it is common practice to use VMWare to virtualize servers and run multiple servers at once. How can a single server design be changed to support multiple servers? Multiple servers can't bind to the same port. If I had to guess I would say a proxy server binds to the port and then sends connections off to the other servers to be handled as if it was still a single server application. I'm wondering what options there are and what are the common practices for solving this problem? Thanks in advance!

  Read the article

• Can you have 2 completely independent instances of Eclipse running at the same time?

  - by froadie

  I'm sure there isn't really a way to do this, but figured it doesn't hurt to ask... I use Eclipse a lot. I'm currently using it for both Java and Python (with PyDev). I often find that I have one project open, with lots of files, say in Java... And then for some reason I have to switch to a Python project for a bit. I want to leave my Java project the way it is, and I don't just want to open tons of Python files in the same place because then I have too much open at once and get a headache and confused. Is there any way I can just leave the Java project exactly the way it is, and sort of open a completely new session of Eclipse? (sort of the way you can do with a browser) Or is this just wishful thinking?

  Read the article

• Picking encryption cipher for mcrypt

  - by Autolycus

  I have few questions about this code: <?php $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB); $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); $key = "This is a very secret key"; $text = file_get_contents('path/to/your/file'); echo strlen($text) . "\n"; $crypttext = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $text, MCRYPT_MODE_ECB, $iv); file_put_contents('path/to/your/file', $crypttext); ?> It encrypts the file just fine, however it adds additional nulls at the end, so if I encrypt: a test string is this one and here is a new line once decrypted becomes: a test string is this one and here is a new line 000000000000000 What's going on? Second, is MCRYPT_RIJNDAEL_256 compatible with AES-128? Finally, how would I let another party decrypt a file I've encrypted? They would need to know which encryption was used and I am not sure what to tell them.

  Read the article

• Efficient implementation of exclusive execution

  - by n0weak

  I have an ObjectManager class that is used to process payments. It is wrapped over the Order entities, so new instance has to be created when processing is required. I need to prevent the situation when several ObjectManager instances are dealing with the same order simultaneously (it happend once because of some errors on the remote payment processing center, somehow they called our callback urls twice). I'd love to get an advice how to implement it more efficiently. For now, I am thinking about something like that: public class OrderManager{ private static final CopyOnWriteArrayList<Integer> LOCKER = new CopyOnWriteArrayList<Integer>(); private static synchronized boolean tryLock(Integer key) { return LOCKER.addIfAbsent(key); } private static void releaseLock(Integer key) { LOCKER.remove(key); } public void processPayment(Integer orderId) throws Exception{ if (!tryLock(orderId)) { return; } try { //operate } finally { releaseLock(orderId); } } //remainder omitted }

  Read the article

• Matching two sections same number of times

  - by Leszczu

  Hello, i need a HTML to parse: <span>some text<span><span><span>text</span></span></span></span> I need to remove unnecessary <span> occurrences, so that output is: <span>some text<span>text</span></span> I wrote a regex, which does this once: /<SPAN>[^<]*<\/SPAN>/i How to make this work same number of times on both <span> and </span>?

  Read the article

• [jquery] Autogrow Textarea '+' Parent div height

  - by Shishant

  Hello, My Html is like this: <div style="height: 90px;" class="tabtextarea"> <div>Description:</div> <textarea style="height: 85px;">TEXT...</textarea> </div> As you can see textarea is contained within a div with specific height so that it doesnt break layout on some browsers due to float styling and etc I am using. I saw few jquery plugins that resize the textarea but is there any solution with which I can resize parent div too? There is no need for live resizing, resizing just once when page is loaded is preferred as the data is already populated in it. Thank You.

  Read the article

• Simplifying CASE WHEN SQL statement

  - by kateroh

  Im trying to improve the following CASE statement to calculate the difference only once. I do it to avoid negative numbers: SELECT (CASE WHEN ((SELECT 100 - (SELECT COUNT(CustomerId) FROM Customers)) > 0) THEN (SELECT 100 - (SELECT COUNT(CustomerId) FROM Customers)) ELSE (0) END) This not only looks stupid, but also is not thread-safe. I tried the following, but I get an error message "Invalid column name 'diff'." SELECT (CASE WHEN ((SELECT 100 - (SELECT COUNT(CustomerId) FROM Customers) as diff) > 0) THEN (diff) ELSE (0) END) How can this be simplified? Is there an in-built SQL function that already does this job? EDIT: Sorry, forgot to mention that the select statement is inside of a view declaration, so I cant declare variables.

  Read the article

• String manipulation appears to be inefficient

  - by user2964780

  I think my code is too inefficient. I'm guessing it has something to do with using strings, though I'm unsure. Here is the code: genome = FASTAdata[1] genomeLength = len(genome); # Hash table holding all the k-mers we will come across kmers = dict() # We go through all the possible k-mers by index for outer in range (0, genomeLength-1): for inner in range (outer+2, outer+22): substring = genome[outer:inner] if substring in kmers: # if we already have this substring on record, increase its value (count of num of appearances) by 1 kmers[substring] += 1 else: kmers[substring] = 1 # otherwise record that it's here once This is to search through all substrings of length at most 20. Now this code seems to take pretty forever and never terminate, so something has to be wrong here. Is using [:] on strings causing the huge overhead? And if so, what can I replace it with? And for clarity the file in question is nearly 200mb, so pretty big.

  Read the article

• jQuery.remove() - Is there a way to get the object back after you remove it?

  - by Jack Marchetti

  I basically have the same problem in this questions: Flash Video still playing in hidden div I've used the .remove jquery call and this works. However, I have previous/next buttons when a user scrolls through hidden/non-hidden divs. What I need to know is, once I remove the flash object, is there a way to get it back other than refreshing the page? Basically, can this be handled client side or am I going to need to implement some server side handling. detach() won't work because the flash video continues to play. I can't just hide it because the video continues to play as well.

  Read the article

• Is it faster to count down that it is to count up?

  - by Bob

  Our computer science teacher once said that for some reason it is more efficient to count down that count up. For example if you need to use a FOR loop and the loop index is not used somewhere (like printing a line of N * to the screen) I mean that code like this : for (i=N; i>=0; i--) putchar('*'); is better than: for (i=0; i<N; i++) putchar('*'); Is it really true? and if so does anyone know why?

  Read the article

< Previous Page | 595 596 597 598 599 600 601 602 603 604 605 606  | Next Page >