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  • C# : Number Conversion Problem

    - by Sayem Ahmed
    Today I faced a strange problem in C#. I have an ASP.NET page where user can enter certain price, quantity etc. I get the price value, convert it to double, then multiply it with 100 and then typecast it to an integer. When the price is "33.30", after converting it to double it remains 33.3 (obviously...), but after multiplying it with 100, it becomes 3329.9999999999995, and when I cast it to integer by applying simple cast operator "(int) (price * 100) ", it becomes 3329. Right now I have no idea why this is happening. So I thought may be you guys can help :) .

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  • PHP Escaping from HTML, faster, cleanner?!

    - by rno
    I've read about it from the php website (http://us3.php.net/manual/en/language.basic-syntax.phpmode.php) Using: echo "<html tag>" is slower and also annoying because you got to escape char like " with \" But what's about using $output = <<< EOF <html code> EOF; Then later on in the code I can use $output .= <<< EOF <some more html code> EOF; then when I want to print it: echo "$output"; I think it's a great idea, but really wonder what you PHP guru think about it. Cheers, rno

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  • html clickable layout area. best practice

    - by Andrew Florko
    I am bad in html layout but I have to produce it :) I want to make big button on a page that is implemented as div with children tags (maybe - a bad idea). I can handle click event on boundary-div with javascript but it requires javascript enabled. I can wrap boundary-div with "anchor" tag but is doesn't work in IE Please, suggest me the best way to implement this. <a href="..."> <table> <td> ... </td> <td> ... <table> ... </table> </td> </table> </a>

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  • Advice about a good Java book?

    - by camac1
    Hi people, I am new to Java but have experience programming in C/C++/C#. I wanted to learn Java SE 6 first before moving to Java EE 6. After making some research online for appropriate Java SE 6 books, I found that these are appropriate for me to get an excellent idea of Java SE 6: 1) Head First Java, 2nd Edition 2) An Intermediate Level Book <----------- 3) Effective Java (2nd Edition) 4) Java Concurrency in Practice 5) Java Generics and Collections 6) Java Concise Reference Series: Swing And AWT 7) Java Reflection in Action However, I am having trouble choosing an Intermediate Level Book which will provide me with breadth and depth in Java SE 6. I was thinking about the book "Thinking in Java (4th Edition)"....Unfortunately, its deals with Java SE 5 and not the latest version. Could anybody please advice me an intermediate level book which could provide me with breadth and depth in Java SE 6. Regards

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  • Add CSS to Form Type is Symfony2

    - by Umair Iqbal
    I have an edit form, The form is made through symfony2 Form types. I checked the documentation but couldn't find any option for adding CSS to the form. The form display the data correctly and everything is fine what I want to do is to add styling to each field. My Edit Type is public function buildForm(FormBuilder $builder, array $options) { $builder ->add('id', 'hidden') ->add('patent_name', 'text', array('label' => 'Patent Name')) ->add('description', 'textarea', array('label' => 'Description', 'required' => false)) ->add('appln_auth','text', array('label' => 'Application Authorization')) ; } Anyone has any idea ho I can add css ? Thanks

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  • Why is is giving me an SQL syntax error?

    - by Tibo
    Do you have any idea why i get this: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '``, `title` varchar(255) collate latin1_general_ci NOT NULL default ``,' at line 3 The code is like this (the part im having problem with...) $sql = 'CREATE TABLE `forum` ( `postid` bigint(20) NOT NULL auto_increment, `author` varchar(255) collate latin1_general_ci NOT NULL default ``, `title` varchar(255) collate latin1_general_ci NOT NULL default ``, `post` mediumtext collate latin1_general_ci NOT NULL, `showtime` varchar(255) collate latin1_general_ci NOT NULL default ``, `realtime` bigint(20) NOT NULL default `0`, `lastposter` varchar(255) collate latin1_general_ci NOT NULL default ``, `numreplies` bigint(20) NOT NULL default `0`, `parentid` bigint(20) NOT NULL default `0`, `lastrepliedto` bigint(20) NOT NULL default `0`, `author_avatar` varchar(30) collate latin1_general_ci NOT NULL default `default`, `type` varchar(2) collate latin1_general_ci NOT NULL default `1`, `stick` varchar(6) collate latin1_general_ci NOT NULL default `0`, `numtopics` bigint(20) NOT NULL default `0`, `cat` bigint(20) NOT NULL, PRIMARY KEY (`postid`) );'; mysql_query($sql,$con) or die(mysql_error()); Help would be greatly appreciated!

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  • .NET & ASP vs PHP

    - by gargantaun
    Earlier today I asked wether it would be a good idea to develop websites using C#. Most of the answers pointed towards .NET and ASP. Currently I develop with PHP. I've dabbled with Python and RoR but I always come back to PHP. This is the first time I've looked at .NET and ASP. A bucket load of Google searches later I'm not really seeing much support for ASP online but then it all seems a bit Biased towards PHP/Apache/MySQL. It looks like there's a fair amount of .NET and ASP folk around here so I figured it's worth a shot asking for their input in attempt to try and address the balance in my own head. It can't all be bad. What advantages are there to .NET and ASP over PHP?

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  • Getting WAP embedded video in android AND iphone?

    - by Jon
    Recently a client asked me to make their site "work on smart phones", which normally wouldn't be too much of an issue... However it's a video site, and I have absolutely no idea where to even begin. Right off the bat I'm not even going to consider allowing the site to even function in anything other than Android (Maybe even 2.0+) and iPhone, maybe Blackberry and WinMo. But beyond that... What do I do? I'm looking at using the tag, however I'm unsure what, if any, codecs which phone uses. Is HTML5 even adopted in their browsers yet? Could someone please point me in the right direction? Am I going about this the right way, using the tag? Or is there some magical html element both iPhone and Android (And BB and WMo) that lets them run video in their native video players (Like on youtube).

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  • JQuery make an array - how/what is best

    - by russp
    I have 4 serailized arrays that I want to pass to php for processing. What is the best way to combine them into a single array example: serial_1 = $('#col1').sortable('serialize'); serial_2 = $('#col2').sortable('serialize'); serial_3 = $('#col3').sortable('serialize'); serial_4 = $('#col4').sortable('serialize');` each serialized array relates to a column/section of the page (col1,col2 etc.) What I need to do/would like to do is create a single array that puts the serialized array inside another array for a single post. example: var new_array = serilaize(col_1(serial_1),col2(serial_2),col3,(serial_3),col4(serial_4)) I KNOW THAT IS NOT RIGHT as I have no idea in JQuery how to right the correct syntax. This new array is to be posted via ajax like this: $.ajax({ url: "test.php", type: "post", data: new_array, error: function(){ alert('SOME ERROR MESSAGE'); } }); Thanks in advance

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  • FDF-files not opening properly

    - by Flyhard
    We have created a servlet that provides a FDF file for our clients. The FDF file is created by iText and the output looks fine. Whenever we open the FDF either from the Servlet, or from a local file, AcrobatReader starts, asks if the PDF should be downloaded, we allow that and then we see the PDF - without the values we filled in the form. One thing that seems strange is, that regardless of the Browser, we get prompted about what to do with the PDF file that Adobe has tried to load. Anything else that clicking "open" will result in a empty Acrobat viewer window. I suspect that Acrobat forgets what to do with the PDF - but I have run out of ideas. Anyone got an idea where to look further?

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  • My page was attacked via xss, but on ftp all files are not changed?

    - by Dobiatowski
    Hi, yesterday i noticed that sometimes on my webpage shows up javascript errors. when i went to source code, i found that one of .js files was totaly replaced with a ton of porn links. i checked the ftp for this file, but there was just old javascript file without any changes. yet i go back to check source code via browser and indeed there was again original .js today i visited my webpage again and the problem repeated. first visit showed me ton of porn pages cached .js file was hacked but after clearing browser cache js go back to oryginal i checked all files on my ftp against my offilne version, but all files are without any change. in last few years i was attacked by xss few times but in every case it was easy to diagnose and fix. but now i spend 12h and didnt find infection. do you have any idea how to find it? the webpage is: http://robert.frk.pl

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  • Bitfield With 3 States...?

    - by TheCloudlessSky
    I'm trying to create an authorization scheme for my ASP.NET MVC application where an Enum is used to set permissions. For example: [Flags] enum Permissions { ReadAppointments = 1, WriteAppointments = 2 | ReadAppointments, ReadPatients = 4, WritePatients = 8 | ReadPatients, ReadInvoices = 16, WriteInvoices = 32 | ReadInvoices ... } But I don't really like that because it really doesn't make it clear that Write always includes Read. I then realized that a requirement would be that a user might have NO access to, for example, Appointments. Essentially, I'd want a "bitfield" with 3 states: none, readonly, full (read/write). I'd like to still use an enum bitfield since it's easy to store in a DB (as an int). Also it's very easy to see if a permission is set. Does anyone have any idea how this could be easily accomplished using an Enum... or am I going in the completely wrong direction?

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  • Good book(s) for MMORPG design & implementation?

    - by mawg
    I am a long time professional C/C++ programmer (mostly embedded systems) and a hobbyist windows & php hacker. Can anyone recommend a book(s) specifically aimed at designing and (hopefully) implementing an MMORPG? I don't need general how to design or how to code books. Maybe a really good generic games book, but I am not interested in 1st person shooters, I want to know what it takes to implement an MMORPG. Good books, maybe also good URLs. Thanks just searching eBay and Amazon threw up a whole slew of books. Amazon's customer reviews give me an idea of how good they are, and the overview tells me what areas they cover

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  • Track unicode words from Twitter using Ruby and the Tweetstream API

    - by Régis B.
    I am trying to track a set of keywords from Twitter by using the Streaming API (can't post the link here because of spam limitations: google twitter streaming API). I am doing this inside Ruby, using the TweetStream gem: http://bit.ly/cODAWI The problem I have is that I want to track keywords that contain some unicode/UTF-8 characters. For instance: require 'rubygems' require 'tweetstream' TweetStream::Client.new("my_user_name", "my_password").track("é") do |s| puts s.text end (you can try it out, provided you installed the tweetstream and json gems) This piece of code does not print anything, while replacing "é" with "e" outputs a bunch of tweets continuously. I did not find any reliable documentation about Unicode in Ruby, so I have no idea where the problem comes from. Thanks for your help!

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  • Using system Sound to play sounds

    - by Shoaibi
    Here is the code: -(void)stop { NSLog(@"Disposing Sounds"); AudioServicesDisposeSystemSoundID (soundID); //AudioServicesRemoveSystemSoundCompletion (soundID); } static void completionCallback (SystemSoundID mySSID, void* myself) { NSLog(@"completion Callback"); } - (void) playall: (id) sender { [self stop]; AudioServicesAddSystemSoundCompletion (soundID,NULL,NULL, completionCallback, (void*) self); OSStatus err = kAudioServicesNoError; NSString *aiffPath = [[NSBundle mainBundle] pathForResource:@"slide1" ofType:@"m4a"]; NSURL *aiffURL = [NSURL fileURLWithPath:aiffPath]; err = AudioServicesCreateSystemSoundID((CFURLRef) aiffURL, &soundID); AudioServicesPlaySystemSound (soundID); NSLog(@"Done Playing"); } Output: Disposing Sounds Done Playing In actual no sound gets play at all and completion call back isn't called as well. Any idea what could be wrong here? I want to stop any previous sound before playing current.

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  • creation of multiple dataset in Reporting service report

    - by brijit
    Hi, I have a SSRS report and using PL/SQL for the dataset creation. My report needs two tables 1 one gives detailed view.(dataset 1) 2 one below that gives a summary table (data should come from the calculations based on the data in 1 table) I am using a temporary table for the dataset one. What are the methods to get calculated result for dataset 2. I wrote 2 procedures for each. since first table is a temporary one i am not getting result for second dataset. Wht can be the options. Can I have multiple dataset outof single procedure please give me and idea. Thanks brijit

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  • Oracle - correlated subquery problems

    - by FrustratedWithFormsDesigner
    I have this query: select acc_num from (select distinct ac_outer.acc_num, ac_outer.owner from ac_tab ac_outer where (ac_outer.owner = '1234567') and ac_outer.owner = (select sq.owner from (select a1.owner from ac_tab a1 where a1.acc_num = ac_outer.acc_num order by a1.a_date desc, a1.b_date desc, a1.c_date desc) sq where rownum = 1) order by dbms_random.value()) subq order by acc_num; The idea is to get all acc_nums (not a primary key) from ac_tab, that have an owner of 1234567. Since an acc_num in ac_tab could have changed owners over time, I am trying to use the inner correlated subqueries to ensure that an acc_num is returned ONLY if it's most recent owner is 12345678. Naturally, it doesn't work (or I wouldn't be posting here ;) ) Oracle gives me an error: ORA-000904 ac_outer.acc_num is an invalid identifier. I thought that ac_outer should be visible to the correlated subqueries, but for some reason it's not. Is there a way to fix the query, or do I have to resort to PL/SQL to solve this? (Oracle verison is 10g)

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  • What is ExtJS philosophy? Single page application?

    - by stach
    I need to write my next project using ExtJs. It's a nice Javascript lib but I don't fully understand the idea behind it. Take the docs page for example: http://www.extjs.com/deploy/dev/docs/ Am I supposed to write my web applications with extjs like that? One page that should never be refreshed, and everything getting done by AJAX? How do you debug such applications if getting to the right place may take a lot of 'clicking' and working with it. You cannot fix the bug and hit refresh in the browser to see the results. Any suggestions?

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  • sql stored procedure in visual studio 2008

    - by Greg
    Hi, I want to write stored procedure in visual studio that as a parameter recieves the name of project and runs in database TT and copies data from TT.dbo.LCTemp (where the LC is the name of the project recieved as a parameter) table to "TT.dbo.Points" table. both tables have 3 columns: PT_ID, Projectname and DateCreated I think I have written it wrong, here it is: ALTER PROCEDURE dbo.FromTmpToRegular @project varchar(10) AS BEGIN declare @ptID varchar(20) declare @table varchar(20) set @table = 'TT.dbo.' + @project + 'Temp' set @ptID = @table + '.PT_ID' Insert into TT.dbo.Points Select * from [@table] where [@ptID] Not in(Select PT_ID from TT.dbo.Points) END Any idea what I did wrong? Thanks! :) Greg

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  • An Actor "queue" ?

    - by synic
    In Java, to write a library that makes requests to a server, I usually implement some sort of dispatcher (not unlike the one found here in the Twitter4J library: http://github.com/yusuke/twitter4j/blob/master/twitter4j-core/src/main/java/twitter4j/internal/async/DispatcherImpl.java) to limit the number of connections, to perform asynchronous tasks, etc. The idea is that N number of threads are created. A "Task" is queued and all threads are notified, and one of the threads, when it's ready, will pop an item from the queue, do the work, and then return to a waiting state. If all the threads are busy working on a Task, then the Task is just queued, and the next available thread will take it. This keeps the max number of connections to N, and allows at most N Tasks to be operating at the same time. I'm wondering what kind of system I can create with Actors that will accomplish the same thing? Is there a way to have N number of Actors, and when a new message is ready, pass it off to an Actor to handle it - and if all Actors are busy, just queue the message?

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  • Will this LINQ-TO-SQL query fetch all records from the table ?

    - by Puneet Dudeja
    public long GetNewCRN() { return ((from c in DataContext.GetTable<Cust_Master>() select c.CUSTSERH_CRN).Max() + 1); } Will this Linq to Sql query fetch all records from the table first and then select the maximum of the column ? If yes, then isn't it a bad idea using linq to sql instead of normal SqlCommand ? Or is there any other way of doing it in linq to sql ? When I attach Console.Out, I see nothing(command prompt does not even open). But when I include following:- context.Log = new System.IO.StreamWriter("d:\\abcd.txt"); I get an error, that "The process can not access the file because it is being used by another process" and that process is "w3wp.exe". How can I see the sql commands being executed by DataContext then ?

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  • Feature categories for a social network

    - by mafutrct
    Not sure if this question belongs on SO. Anyway, please let me try to clarify the issue. I'm currently planning a social program. It's basically a chat server with the major additional ability to play games. I'd like to create categories of features that are offered to users. My question is, are there any useful standard feature categories? Does not have to be specific to my case, I'm interested in the general case as well. Just to give you an idea of what I'm thinking: functional e.g. play games social e.g. chatting operational e.g. 24/7 service availability I'm entirely unsure if this is the right place to ask, if you know of any better site to ask please don't hesitate to add a comment.

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  • Can anyone tell me if this is possible to do in Linq?

    - by user275561
    So I have been working and trying for a couple of hours. I am creating a BubbleBreaker type of game. I Can do it using for loop or while but I am trying to also get practice in using Linq. Here is what I am trying to do in pesudo code. Each Bubble has a Column and Row Property. If The bubble subtracts one from its Column property and finds the same Color bubble, it should Select it then Subtract -1 and see if two bubbles away there is also a same color bubble. If there is then subtract -2 and so on. So What I am trying to do is var test= _theBubbles.TakeWhile((i, s) => i.BubbleColor== bubble.BubbleColor)//Then somehow tell it to do bubble.Column-s and then Subtract s from bubble.Column So the Idea is to keep looking down the column till the bubble isnt the same

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  • Fast dot product for a very special case

    - by psihodelia
    Given a vector X of size L, where every scalar element of X is from a binary set {0,1}, it is to find a dot product z=dot(X,Y) if vector Y of size L consists of the integer-valued elements. I suggest, there must exist a very fast way to do it. Let's say we have L=4; X[L]={1, 0, 0, 1}; Y[L]={-4, 2, 1, 0} and we have to find z=X[0]*Y[0] + X[1]*Y[1] + X[2]*Y[2] + X[3]*Y[3] (which in this case will give us -4). It is obvious that X can be represented using binary digits, e.g. an integer type int32 for L=32. Then, all what we have to do is to find a dot product of this integer with an array of 32 integers. Do you have any idea or suggestions how to do it very fast?

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  • XCode won't open: "Mac OS X platform is missing"

    - by Jan Hettich
    XCode won't open. I had it running fine a couple of weeks ago. Now I get the following error message when XCode tries to open: Internal Error File: /SourceCache/DevToolsBase/.../XCPlatformSpecification.m Line: 438 Object: <XCPlatformSp(ecification> Method: loadAllPlatforms The Mac OS X platform is missing - cannot set a default platform. Any idea what caused this or how I can recover? Changes I have made to my system (Snow Leopard) in the last couple of weeks include (a) allowing Software Update to run and (b) installing Eclipse IDE. But the problem may or may not be related to these changes.

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