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• Total Size of NSMutableArray object

  - by sj wengi

  Hi Folks, I've got an NSMutableArray that holds a bunch of objects, what I'm trying to figure out is how much memory is the array using. After looking at a couple of places I know about the sizeof call, and when I make it I get 32 bits (which is the size of the NSMutableArray object it self). Example code: NSMutableArray *temp = [[NSMutableArray alloc]init]; [temp addObject:objectxyz]; [temp addObject:objectabc]; [temp addObject:object123]; now I want to know the size :) Thanks, Sj

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• wireless not working, but wired does

  - by user211762

  First of all I'm new to Ubuntu, just bought a laptop with Ubuntu yesterday. I disable wireless networking in the upper right corner, and I don't have option to enable it back. I tried a lot of things and none is seems to work: I installed Wicd network manger, and it says no wireless network found, but i assure you there are several of them as my smart tv can detect them. when I type rfkill list, I get this: 0: dell-wifi: Wireless LAN Soft blocked: no Hard blocked: no when I type ifconfig wlan0, I get this: wlan0: error fetching interface information: Device not found

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• creating object according to the switch case value

  - by vincent

  hello, i have the following switch case: switch (appModel.currentPage){ case "Programma": case "Winkelwagen": case "Films": case "Contact": if (page){ removeChild(page); } //here i would like to create a new object page that has the type of the switch. i mean this: var page: getDefinitionByName(appModel.currentPage+"Page"); this doesnt work thou but it should be something like: "FilmsPage or ContactPage or ...". addChild(page); break; Does anyone know how to do this?

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• how can we call one class's method through another class's object in php

  - by hello

  I want to know that is there any method in PHP by which i can call one class's method from another class object. let me clear here is one class class A() { public function showData(){ //here is method of class A } } // here is another class class B(){ public function getData(){ //some method in class B } } //now i create two objects $objA= new class A(); $objB=new class B(); now i want to call this $objB->showData();<--- is that possible .. by any how method( using public, inheritence,child parent etc...) please help me

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• Objective-C Objects Having Each Other as Properties

  - by mwt

  Let's say we have two objects. Furthermore, let's assume that they really have no reason to exist without each other. So we aren't too worried about re-usability. Is there anything wrong with them "knowing about" each other? Meaning, can each one have the other as a property? Is it OK to do something like this in a mythical third class: Foo *f = [[Foo alloc] init]; self.foo = f; [f release]; Bar *b = [[Bar alloc] init]; self.bar = b; [b release]; foo.bar = bar; bar.foo = foo; ...so that they can then call methods on each other? Instead of doing this, I'm usually using messaging, etc., but sometimes this seems like it might be a tidier solution. I hardly ever see it in example code (maybe never), so I've shied away from doing it. Can somebody set me straight on this? Thanks.

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• how to manipulate Json response like an object?

  - by loviji

  Hello, my jQuery.ajax return JSon object. I firstly read other articles. but their response text not likes mine. My Response content: from firebug response {"item":"[{\"country\":\"USA\",\"lan\":\"EN\"},{\"country\":\"Turkiye\",\"lan\":\"TR\"}]"} Now i trying to alert countryName: $('#loadData').click(function() { $.ajax({ type: "POST", url: "WS/myWS.asmx/getDaa", data: "{}", contentType: "application/json; charset=utf-8", dataType: "json", success: function(msg) { $("#jsonResponse").html(msg); $.each(msg.item, function(i, d) { alert(this.country); debugger; }); }, }); }); but it is alerting "undefined"

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• Usb/vga not recognized anymore

  - by Peter Raeves

  I don't know what happened, but yesterday everything worked fine, but when I woke up this morning and booted my computer to Ubuntu 14.04 a bunch of hardware isn't recognized anymore. I use a dual monitor setup with dvi-d and vga, but the vga screen isn't recognized anymore and the dvi-d monitor is recognized as "Built-in Display" while I'm not on a laptop. Also every device connected through usb isn't recognized anymore either. I have a keyboard with the blue round connector, which still works, so I can still log in though. The computer goes slower than usual and I have no idea what has happened. Can anybody point me in the direction I should start looking, because this is scary! I just checked and both the front and back sound connectors stopped working also :/ Edit: The devices connected through USB are recognized as they all show up using sudo lsusb, Ubuntu just doesn't let me use them anymore.

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• Bad sound quality and headphones not working

  - by wifi

  Using Ubuntu 10.10, on a HP Pavilion t3019.es, which has a Realtek ALC880 soundcard. It has 6 rear jack outputs, plus digital audio input and output, plus 3 front jacks (mic, headphones and a blue one which i don't know what's for). The sound on my computer is very low, and when i raise the volume up to 50%, it starts sounding distorted, crackling. Also, the headphones don't work when i plug them (it just keeps on playing through the speakers). I tried to comment the "/etc/modprobe.d/alsa-base.conf" file according to the soundcard and jacks in my computer, but none of the lines added worked (naturally, didn't added them at once). I found out that adding "options snd-hda-intel model=generic" to it made the sound better, but it's not as good as in Windows yet. Any ideas? Other than setting the PCM value, didn't work for me. Thanks.

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• JPA query many to one association

  - by Random Joe

  I want to build the following pseudo query Select a From APDU a where a.group.id= :id group is a field in APDU class of the type APDUGroup.class. I just want to get a list of APDUs based on APDUGroup's id. How do i do that using a standard JPA query?

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• Using request.setAttribute in a JSP page

  - by ria

  Is it possible to use request.setAttribute on a JSP page and then on HTML Submit get the same request attribute in the Servlet?

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• How to get selenium to click on an object other than by ID

  - by Zombies

  So here is a little challenge. I have an image. It has 2 attributes: a random ID - not helpful an image url - but it is a button, and other buttons use the same image url, not helpful a CSS class - also used by too many other things to be helpful a style - neither helpful nor unique This image is however inside of an anchor tag, but the anchor tab isn't to a page, it just runs some javascript. Bellow is the html in question: <a id="template:j_id__ctru168pc2" title="Click for the Manual Class LOV" class="xei" style="text-decoration: none;" onclick="return false;" href="#"> <img id="template:j_id__ctru169pc2" class="xgs" style="border: 0pt none;" src="images/lov_ena.png"> </a> How can I click this image without using the ID?

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• Want to understand C++ sentry object

  - by Romain Hippeau

  I answered this [question][1] and somebody else had answered as he modern C++ equivalent would be a sentry object: construct it at the beginning of a function, with its constructor implementing call(), and upon return (or abnormal exit), its destructor implements I am not familiar with using sentry objects in C++. I thought they were limited to input and output streams. Could somebody explain to me about C++ sentry objects as well as how to use them as an around interceptor for one or more methods in a class ? [1]: http://stackoverflow.com/questions/2688043/call-return-feature-of-classic-cc-with-classes-what-modern-languages-have-it/2688095#2688095 /

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• How do I make JavaScript to set these element values?

  - by dmanexe

  I have two fields that need to multiply each other and fill a 3rd form's value. Here's the HTML: <input type="text" name="estimate[concrete][price]" value="" onBlur="calc_concreteprice(document.forms.mainform);" /> per SF <strong>times</strong> <input type="text" name="estimate[concrete][sqft]" value="" onBlur="calc_concreteprice(document.forms.mainform);" /> SF = <input type="text" name="estimate[concrete][quick_total]" value="" /> Here's my JavaScript: function calc_concreteprice(mainform) { var oprice; var ototal; oprice = ((mainform.estimate[concrete][sqft].value) * (mainform.estimate[concrete][price].value)); ototal = (oprice); mainform.estimate[concrete][quick_total].value = ototal; } I want the first two forms to be multiplied together and output to the third. I think my problem may be within how I am referencing the input field names, with brackets (I'm taking results from this form as an array so I'm already used to working with the results as a multi-dimensional array). Thanks for the help!

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• mnt/sdb1 is not ready or present press "s"to skip "M"

  - by user290508

  Hi there could you help me please? I installed Ubuntu 14.04 and all was well until arecent update mess things up. Now when I boot up it get stuck at " mnt/sdb1 is not ready or present press "s"to skip "M" to manually repair plus another choice. If select M you get to a dead end and have to reboot. I usually skip to boot. The other choice gets me to the boot screen where you can choose Ubunu and other choice. Right next to U the Ubuntu choice I see "*Ubuntu" that is very strange . Can you help? I don't want to reinstall.

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• Ubuntu 14.04 not booting before Windows 8.1

  - by user280244

  I try too boot my computer into Ubuntu, but I end up having to manually select Ubuntu from the devices menu, even though it was supposed to boot first. Instead Windows 8 boots up like Ubuntu isn't even there! And GRUB works just fine when Ubuntu is selected in the boot device menu. (How else am I on?) I tried using EasyBCD but kept getting errors from the windows boot manager. And just in case it helps, during installation of Ubuntu it didn't recognize windows 8, and I had to resize and install manually. Anything I can do? Notes: EVERYONE!!! GRUB WORKS PERFECTLY!!! IT IS AN ERROR IN THE HP BOOT MENU AS I HAVE PREVIOUSLY SAID!!! PLEASE DO NOT GIVE ME ANSWERS FOR GRUB EDITS IN THE FUTURE!!! Here are my specs: PC type: HP 2000-2d49WM Notebook PC RAM: 4GB Swap: 2GB Processor: AMD E-300 Vision 1.3 GHz x2 BIOS Edition: N\A Until further notice

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• UbuntuStudio 12.04 does not boot after install - no "intrd" image

  - by user72705

  After installing Ubuntu Studio 12.04 from DVD onto the fourth hard disk, it fails to boot, even when explicitly choosing the fourth hard disk as the boot device. I have SUSE 11.2 on the first 2 SCSI disks (which form a RAID) and Studio64 on the 1st IDE disk (that is, the third disk). Looking at the /boot directory on the Ubuntu partition, I see there is no initrd image. Editing the GRUB configuration file to include (hd3,1)/vmlinuz and of course (hd3,1)/initrd should fix the problem. But still GRUB gives a file not found error. This appears to me that, no mkintrd during the booting process (checked with LiveCD) runs like in OpenSUSE. How do I create the initrd to make Ubuntu bootable.

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• jQuery: How to collect values from sliders into simple object with id as keys

  - by Svish

  I have several jQuery UI Sliders and I want to collect their values. Thought it would be a simple task, but when I was going to do it I got stuck and not quite sure what to do anymore :p The object I would like to end up with should look something like this: { a: 80, b: 90, c: 20, ... } I can do it manually like this: var values = { a: $('#a').slider('value'), b: $('#b').slider('value'), c: $('#c').slider('value'), ... }; But that's a bit tedious, especially if I need to add or remove or rename. Was hoping I could do something with the map or each function or something like that, but I can't figure it out. Anyone have some clever ideas?

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• Delete trigger does not catch table truncation

  - by Tomaz.tsql

  Sample shows table truncation will not fire delete trigger. USE AdventureWorks; GO -- STAGING IF EXISTS (SELECT * FROM sys.objects WHERE name = 'est_del_trigger_log' AND type = 'U') DROP TABLE test_del_trigger_log; GO IF EXISTS (SELECT * FROM sys.objects WHERE name = 'est_del_trigger' AND type = 'U') DROP TABLE test_del_trigger; GO CREATE TABLE test_del_trigger (id INT IDENTITY(1,1) ,tkt VARCHAR(10) CONSTRAINT pk_test_del_trigger PRIMARY KEY (id) ); GO INSERT INTO...(read more)

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• Plugged in, not charging Windows 7 solution

  I recently had the popular problem of Windows 7 battery manager malfunctioning and not charging my battery when plugged in.  The battery was fine, the power supply was fine, and the motherboard was fine (I have enough laptops with the same specs in the Headspring office, and I was able to swap out parts to isolate the problem). I also searched for this problem online, and many folks are having this problem with all makes of laptop computers.  I found the steps that solved my problem here...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Codeigniter Model appending word_limiter to result object

  - by yahyaE

  I have a get_all function in my model class in Codeigniter 2.0+. For a given database field name, i need to use word_limiter() in text helper. In view page, i loop result set as object $row->field_name_to_be_limited. With below code, i am trying to do it. But i should include the change $q->$field_name = word_limiter($q->$field_name, 4); into the $q->result. Thanks for help. function get_all($table_name,$orderByField,$ascDesc,$field_name = '') { $this->load->helper('text'); $qOrder = $this->db->order_by($orderByField,$ascDesc); $q = $this->db->get($table_name,$qOrder); if( ! $field_name ==='') $q->$field_name = word_limiter($q->$field_name, 4); return $q->result(); }

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• Dell monitor not detected (Ubuntu 11.10)

  - by Charles

  I have an issue with my monitor. I just installed Ubuntu 11.10, but the monitor that is plugged in doesn't appear anywhere. And by doesn't appear, I mean that in the "Displays" menu, it doesn't even appear as "Unknown", I just have my screen that appears and nothing else. It is connected through VGA, and the monitor is recognized with no problem on Windows 7. It is a Dell monitor. I'm not a pro with Ubuntu, so any help to diagnose the issue would be really helpful (and help me learn how to fix this kind of monitor issue in the future) Thanks !

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• When to define SDD operations System->Actor?

  - by devoured elysium

  I am having some trouble understanding how to make SDDs, as I don't fully grasp why in some cases one should define operations for System - Actor and in others don't. Here is an example: 1) The User tells the System that wants to buy some tickets, stating his client number. 2) The System confirms that the given client number is valid. 3) The User tells the System the movie that wants to see. 4) The System shows the set of available sessions and seats for that movie. 5) The System asks the user which session/seat he wants. 6) The user tells the System the chosen session/seat. This would be converted to: a) -----> tellClientNumber(clientNumber) b) <----- validClientNumber c) -----> tellMovieToSee(movie) d) <----- showsAvailableSeatsHours e) -----> tellSystemChosenSessionSeat(session, seat) I know that when we are dealing with SDD's we are still far away from coding. But I can't help trying to imagine how it how it would have been had I to convert it right away to code: I can understand 1) and 2). It's like if it was a C#/Java method with the following signature: boolean tellClientNumber(clientNumber) so I put both on the SDD. Then, we have the pair 3) 4). I can imagine that as something as: SomeDataStructureThatHoldsAvailableSessionsSeats tellSystemMovieToSee(movie) Now, the problem: From what I've come to understand, my lecturer says that we shouldn't make an operation on the SDD for 5) as we should only show operations from the Actor to the System and when the System is either presenting us data (as in c)) or validating sent data (such as in b)). I find this odd, as if I try to imagine this like a DOS app where you have to put your input sequencially, it makes sense to make an arrow even for 5). Why is this wrong? How should I try to visualize this? Thanks

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• PHP 5 functioning returning an array- interaction without assignment?

  - by Lee

  I'm wondering if this kind of thing will ever be possible in PHP (and whether it already is and I'm just missing something...) <?php function test() { return array( 'id'=>10, 'name'=>'John' ); } echo 'Your name is: '.test()['name']; ?> I'd really like to be able to use returned arrays directly instead of first assigning them to a var... possible?

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• Stupid java question: Is it a method?

  - by Stefan

  Hello, I'm no Java guy, so I ask myself what this means: public Button(Light light) { this.light = light; } Is Button a method? I ask myself, because it takes an input parameter light. But if it was a method, why would it begin with a capital letter and has no return data type? Here comes the full example: public class Button { private Light light; public Button(Light light) { this.light = light; } public void press() { light.turnOn(); } } I know, this question is really trivial. However, I have nothing to do with Java and haven't found a description for the Button thing above. I'm just interested.

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• Best practice for near reuse of model components?

  - by Chris Knight

  I have a requirement to use a Fund model in my code. It will contain a fund name and fund code. In the interest of reuse I've poked around the package containing the other models used and found an existing Fund model. However the issue here is that, in addition to fund name and code, it also contains an amount. Amount isn't directly relevant in my context. So, do I: 1) Use the existing Fund model as is, ignoring the setters/getters for fund amount. 2) Put a FundDescription interface onto the existing Fund model for accessing only the information I'm interested in. 3) Make a FundDescription base class from which the existing Fund model could now extend 4) Create a whole new seperate model since the two are slightly contextually different

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