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• In ASP.NET MVC, how does response.redirect work?

  - by Swoop

  I have used response.redirect in classic ASP and ASP.NET webforms. However, with MVC 2.0, I am running into something peculiar. I have a private method in a controller class that is used by multiple controller methods to help load and validate some information. This private method is setup to redirect if a problem is discovered to a generic error message page. The big problem I am noticing is that the calling controller class and page view attempt to complete rendering and loading before the redirect actually takes place. This is annoying in development because the View throws exceptions that I need to ignore before my generic error page finally loads. As mentioned above, I am used to the older model of response.redirect which prevented subsequent code on a page from being executed as the new page would then load. Any help or advice on redirects in MVC would be greatly appreciated.

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• Deeper function profiling/emulation

  - by Syntax_Error

  Hello everyone Merry Christmas I need an advice I have the following code: int main() { int k=5000000; int p; int sum=0; for (p=0;p<k;p++) { sum+=p; } return 0; } When I assemble it I get main: pushl %ebp movl %esp, %ebp subl $16, %esp movl $5000000, -4(%ebp) movl $0, -12(%ebp) movl $0, -8(%ebp) jmp .L2 .L3: movl -8(%ebp), %eax addl %eax, -12(%ebp) addl $1, -8(%ebp) .L2: movl -8(%ebp), %eax cmpl -4(%ebp), %eax jl .L3 movl $0, %eax leave ret If I run it through gprof I get that main executed the most, which is quite obvious! Yet I want to go a step further and be able to know if L2, or L3 executed the most. here it is obvious that L3 executed the most. yet is there some kind of profiler, emulator that can give me that data for an entire code?

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• Regarding Creating Business application using Silverlight

  - by vijay

  Hi, We are in the conceptual phase to create a relatively medium size enterprise business product application using Silver light 4.0, Entity Framework and WCF. 1. Is it adivceable to use Silverlight 4.0 for this enterprise business application development or should we go in for MVC.NET / ASP.NET? 2. We have planned to use REST based WCF service. How complex would it be to write the information back to the REST WCF service? I appreciate and welcome your advice / suggestion. If you need any further details do let me know, i will be happy to share. Thanks in advance.

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• group by, order by, with join

  - by Scarface

  Hey guys, quick question, I have this query, and I am trying to get the latest comment for each topic and then sort those results in descending order (therefore one comment per topic). I have what I think should work, but my join always messes my results up. Somehow, it seems to have sorted the end results properly, but has not taken the latest comment from each topic instead it seems to have just taken a random comment. If anyone has any ideas, would really appreciate any advice SELECT * FROM comments JOIN topic ON topic.topic_id=comments.topic_id WHERE topic.creator='admin' GROUP BY comments.topic_id ORDER BY comments.time DESC table comments is structured like id time user message topic_id table topic is structured like topic_id subject_id topic_title creator timestamp description

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• how to delete a image from iphone application

  - by pankaj

  I am working an iphone app where i am giving the option of downloading an image to user's iphone. Following is my code for downloading of image. UIImage *image = [[UIImage alloc] initWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:urlAddress]]]; NSString *pngFilePath = [[[NSString stringWithFormat:@"%@/",docDir] stringByAppendingString:[NSString stringWithFormat:@"%@",couponID]] stringByAppendingString:@".png"]; NSData *data1 = [NSData dataWithData:UIImagePNGRepresentation(image)]; [data1 writeToFile:pngFilePath atomically:YES]; My above code works fine but now i want to give option of deleting the image downloaded from above code. Can some one please advice me how can i delete a image file from iphone.

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• Getting started with C++ ( the paradigm shift from Python )

  - by orokusaki

  I want to learn C++ so that i can develop C++ Python modules for server-related stuff. I'm a purely dynamic languages developer (Python, PHP, Ruby, etc). I want to learn a fast language, and if I'm going to do this, I'd rather learn a really fast language like C++. Before I even get started though, I understand that suddenly working with static types, a different syntax, and compiling code will be quite the paradigm shift. Is there any advice that a C++ dev who also has dynamic languages experience can give me to me to help me make that shift faster?

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• Textarea without wysiwyg editor but have nice format

  - by dantan

  I have a texteare where someone can input text. I do not want a wysiwyg editor. But what would be great: Strip all tags, but make correct <p> and <br /> if user input has new lines. Additionally convert all urls, with or without http// or parameter to clickable links. I cannot find a solution. So you could type into the textarea: ........ This is a paragraph This ist still in the paragraph this is a new paragraph www.this-would-be-clickable new paragraphp `<strong>`this will be shown not bold`</strong>` ........ thankfull for every advice

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• Changing Dropdown based on Other Dropdown Menu

  - by Shaded

  I've seen a few questions like this, but mine is a bit more specific so I hope this isn't considered a repost. I am working on a website that is built with struts 2 and hibernate. I need to dynamically populate a drop down menu using data from a sql query based on an option selected in another drop down menu. So basically when the first option is selected I need to rehit the server and get the results from a query like SELECT column FROM table WHERE option = dropDownOption On top of that, I would really like to use ajax to only refresh the affected elements, however I'm really unfamiliar with ajax. I have jquery on this project and I found they have some ajax built in, but is this a good method for using it? any advice on this topic would be appreciated.

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• Spring mvc: controller returns [][], usable in jsp with foreach, but how to bind?

  - by Joe

  I'm building a spring mvc application. Now the problem I have is the following. I have a controller which adds a DayInfo[][] to my ModelMap. (DayInfo has an id, a title (String) and Text(also String). Now the problem I have is that I have no problem displaying this DayInfo[][] with foreach tags in my jsp. However I'm outputting the Title property as an input box(type text), and I'd like to be able to update this value (and thus saving it to be a database but that shouldn't be a problem). However I'm having trouble with binding this value to the input box so that it is actually returned to the controller. If anyone has some advice it would be welcome.

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• What is good practice for writing web applications that control daemons (and their config files)

  - by Jones R

  Can someone suggest some basic advice on dealing with web applications that interact with configuration files like httpd.conf, bind zone files, etc. I understand that it's bad practice, in fact very dangerous to allow arbitrary execution of code without fully validating it and so on. But say you are tasked to write a small app that allows one to add vhosts to an apache configuration. Do you have your code execute with full privileges, do you write future variables into a database and have a cron job (with full privileges) execute a script that pulls the vars from the database and throws them into a template config file, etc. Some thoughts & contributions on this issue would be appreciated. tl;dr - how can you securely write a web app to update/create entries in a config file like apache's httpd.conf, etc.

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• Html newbie! background-image question

  - by Kevin Li

  Hi! I'm learning HTML and I wanted to practice by recreating a invoice sent to me by Electronics Expo. However, I used the background-image property and repeated it by repeat-x and now, the background stretches across the page so much that it has a horizontal bar to drag. http://htmlpocketreference.110mb.com/index.html You can see what I did in my link above. Also, I would really appreciate some advice on simplifying my CSS coding. It seems really messy and I have to move every element once something changes. -.- Thanks!

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• How to fight fake reviewers on iTunes?

  - by Tiger

  Hi my app "Vocal Zoo Plus" is under attak of fake reviews by a competitor Apple did nothing in similar cases and I don't even have a usa account Any id'e how to fight them? I will willingly give promocodes for my app if someone would like to help the fight and write a true review but that would only help me at usa since the attack is coming from UK as well all other reviews by the way are 5 stars The reviewer who gave me one star with false bugs happend to rate 5 star for this competitor Apps. Any advice / help will be apriciated.

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• C - memset segfault for statically allocated char array

  - by user1327031

  I get a segfault when trying to memset an array of chars that was allocated statically, but not for an array of the same length that was allocated using malloc. variable definitions: //static char inBuff[IN_BUFF_LEN]; //dynamic char * inBuffD; function call: //static, cast used because char** != char (*) [n] serverInit(portNum, (char**) &inBuff, &serv_addr, &sockfd) //dynamic serverInit(portNum, &inBuffD, &serv_addr, &sockfd) use within the function: memset(*inBuffAdr, 0, IN_BUFF_LEN); I suspect that my problem is in the difference of the function calls, or to be more precise, my incomplete understanding of the "char** != char (*) [n]" situation. But I have been banging at this for too long and can't see the forest from the trees so any hints and advice would be very appreciated.

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• Very difficult SQL query

  - by db666

  For the following table definitions: Name Null? Type Comments ------------------------------- -------- ---- ------------------------------------ ENUM NOT NULL NUMBER(4) ENUM should not exceed a length of 4. ENAME CHAR(15) ADDRESS CHAR(25) ADDRESS should not exceed 25 characters. SALARY NUMBER(5) OFFICE CHAR(4) DNUM NOT NULL NUMBER(4) Department which this employee belongs to department Name Null? Type Comments ------------------------------- -------- ---- ------------------------------------- DNUM NOT NULL NUMBER(4) DMGR NOT NULL NUMBER(4) Department manager DNAME NOT NULL CHAR(15) project Name Null? Type Comments ------------------------------- -------- ---- ------------------------------------- PNUM NOT NULL NUMBER(4) PMGR NOT NULL NUMBER(4) Project manager PTITLE NOT NULL CHAR(15) emp_proj Name Null? Type ------------------------------- -------- ---- PNUM NOT NULL NUMBER(4) ENUM NOT NULL NUMBER(4) I have to write SQL query which will find the names of employees who do not share an office but work on the same project, and have different salaries... I've spent last three days trying to figure out something, but no idea as far. I will appreciate any advice.

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• Odd Segue Behaviour - Not Firing

  - by Zak

  So I've noticed some very weird behaviour from my program. Here's a simplified code snippet and then I'll explain what occurs when built and ran. -(void)viewDidLoad { [super viewDidLoad]; ... if (self.sampleBool) { [self performSegueWithIdentifier:@"mySegue" sender:self]; } else { // do stuff } } ... -(IBAction)myMethod:(UITapGestureRecognizer*)sender { ... [self performSegueWithIdentifier:@"mySegue" sender:self]; } The segue triggers via the UITapGestureRecognizer fine - so I know the segue is linked correctly. However, when self.sampleBool is true and performSegueWithIdentifier is called within viewDidLoad, the segue does not fire. Anyone have any guesses? Any help or advice is appreciated. Thanks

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• Passing message over network

  - by Sylvestre Equy

  Hi, I'm currently trying to develop a message-oriented networking framework and I'm a bit stuck on the internal mechanism. Here are the problematic interfaces : public interface IMessage { } public class Connection { public void Subscribe<TMessage>(Action<TMessage> messageCallback); public void Send<TMessage>(TMessage message); } The Send method does not seem complicated, though the mechanism behind Subscribe seems a bit more painful. Obviously when receiving a message on one end of the connection, I'll have to invoke the appropriate delegate. Do you have any advice on how to read messages and easily detect their types ? By the way, I'd like to avoid to use MSMQ.

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• MSSQL Sum query

  - by ldb

  today my problem is this i have 2 column and i wish check if the sum of that columns isn't Higher then a value(485 for example) and if is do a query...i though to do SELECT * FROM table WHERE ColumnA+ColumnB<485 But isn't working... i've already tried with SELECT Sum(ColumnA)+Sum(ColumnB) AS Total FROM table but it gives me 1 column with the sum of all rows, i instead want a row for every sum. so how can i do..? xD i hope you understood if not just ask that i try to explain it better! and thanks in advice for who want to help me! EDIT: I Found out XD the problem was that the columns was Smallint and the result of 1 or more rows was more than 32k so it wasn't working! Thanks At all!!

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• PHP getting a bunch of weird code \u0644\u064a\u0646\u0643 \u0627\u0644

  - by Webby

  Hello I'm getting a bunch of weird html output in users messages e.g. \u0644\u064a\u0646\u0643 \u0627\u0644 \u0639\u0627\u0645\u0644 I assume their aribic characters decoded? How can I perhaps preg replace all these codes with something a little more useful? because search results are filled with pages and pages of this stuff Perhaps even display them as they're supposed to be? Any advice what to do with such strings and how to implement them appreciated.. Please keep in mind this stuff is mixed in been common language letters / numbers many thanks

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• iphone best practice, how to load multiple high quality images

  - by bennythemink

  Hi guys and girls, I have about 20-ish high quality images (~3840x5800 px) that I need to load in a simple gallery type app. The user clicks a button and the next image is loaded into the UIImageView. I currently use [UIImage imageWithContentsOfFile:] which takes about 6 seconds to load each image in the simulator :( if I use [UIImage imageNamed:] it takes even longer to load but caches the images which means its quicker if the user wishes to see the same images again. But it may cause memory problems later with all that caching crashing my app. I want to know whats the best practice for loading these? I'm experimenting with reducing image file size as much as is possible but I really need them to be high quality image for the purpose of the app (zoomable, etc.). Thanks for any advice

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• Use of bit-torrent for large file download as an alternative to FTP

  - by questzen

  The company I work for procures large volumes of data and does this by subscribing to FTP locations. I was wondering if it is possible to download the same using a tracker, the major challenge is authentication of the users IMO. Most ftp servers we subscribe to have a restriction of the number of ftp connection attempts. Does any one here have any experience with this? Any advice is welcome. Edit To clarify, we subscribe to third party vendors and access their ftp location using credentials provided by them. The service is not exclusive to us, they do sell their data to several others. If we could be part of the swarm, the download rates would be pretty high without added penalty. The question is about the possibility of achieving this, so that we can put-forth a proposal in those lines. The vendors obviously wouldn't share data to non-subscribers, so that is a constraint.

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• save and compile automatically

  - by robUK

  Hello GNU 23.1.1 By clicking the F5 button I can compile my project. However, I want to extend this so that any unsaved work would be saved and then compiled. Normally I just do C-x-s to save then click F5. But can I add a line that will save without having to ask me do I want to save then it will compile, all done automatically? ; Compile program using <F5> ; Save all unsaved files here, then compile (global-set-key [f5] 'compile) Hope you understand me? Many thanks for any advice,

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• Creating a map in HTML, CSS, SVG?

  - by yeeeev

  Hi, I would like to create a web based regional map that would enable the user to click in order to choose a region on the map, and will also have some visual effect (resizing, etc) when hovering over one of the regions. I want the map to work on desktops and mobile devices. I'm having doubts regarding the best technology to use here when I'm mainly considering traditional image maps vs.SVG. Image map are more widely supported, but any animation that effects only a single area in the map must be hacked over. SVG is a more natural fit, but is not supported by Android (old IEs can work using svgweb) Any advice? Any other option I'm overlooking?

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• Java, searching within a list of objects?

  - by Rick

  I'm a bit lost on the way to make this happen the fastest. I have a large list of objects that have basic variable attributes (with getters / setters) and I need to do a search in this list to find the objects within the list that match a given parameter I have found how to do a regular list search but I need to, for example search for the value of the result of doing a call getName() for each object in the list and get objects that have a result that matches my input. Something like below where the third argument is the result of the method call and the second is what I am trying to find. int index = Collections.binarySearch(myList, "value", getName()); Any advice is appreciated

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• First-time contractor question: how do I handle web hosting?

  - by abeger

  I've started doing a little freelance web work and I've got to build a site for a client. The client doesn't currently have a hosting service, so either I or they are going to have to set it up. Traditionally, how does this work out? Do I set it up and then transfer ownership to them when I'm done? Do I leave it to them to set it up? If they're going to be paying for the hosting directly, does that affect anything? Basically, I'm brand new at all this and any and all advice on how to handle hosting would be greatly appreciated.

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• unable to set href inside click event of Jquery

  - by akshatrautela

  Hi I am trying to set href using Jquery inside click event of RadioButtonList but that doesnt work If I take the same code to document.ready event it works fine but not in click event. Please advice. $(document).ready(function() { url = "Results.aspx?latitude=" +latitude + "&Longitude=" + longitude; $("a[href='http://www.google.com/']").attr("href", url); // this works.. } $('.rbl input').click(function() { id = $(this).parent().children("input").val(); url = "Results.aspx?latitude=" + latitude + "&Longitude=" + longitude + "&ServiceCenterProductTypeId=" + id; //alert(url); $("a[href='http://www.google.com/']").attr("href", url); //this doesnt work.... }); });

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