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  • Winforms-how do I keep window fully painted/responsive during a long running synchronous request is

    - by Greg
    Hi, Background - For a winforms 3.5 c# application, I would like to keep the main window fully painted/responsive during a long running synchronous request. For example if the user moves the window. Question - Is there a way to achive this WITHOUT having to setup a separate thread or backgroundworker process? (e.g. like a way to call from within my long running transaction, "release a bit of CPU to mainform", at some points) thanks

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  • Matching 3 out 5 fields - Django

    - by RadiantHex
    Hi folks, I'm finding this a bit tricky! Maybe someone can help me on this one I have the following model: class Unicorn(models.Model): horn_length = models.IntegerField() skin_color = models.CharField() average_speed = models.IntegerField() magical = models.BooleanField() affinity = models.CharField() I would like to search for all similar unicorns having at least 3 fields in common. Is it too tricky? Or is it doable?

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  • How are integers casted to bytes in Java?

    - by helixed
    I know Java doesn't allow unsigned types, so I was wondering how it casts an integer to a byte. Say I have an integer a with a value of 255 and I cast the integer to a byte. Is the value represented in the byte 11111111? In other words, is the value treated more as a signed 8 bit integer, or does it just directly copy the last 8 bits of the integer? Thanks, helixed

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  • Choosing a non microsoft language for web development?

    - by Luke Lowrey
    I am resonably experienced with asp.net and would like to learn a new language with a focus on web development. Licensing and hosting costs are why I would like to use something not reliant on microsoft so something based on open source technologies is a plus. I have had a tiny bit of experience with php and did not like it but I guess I could be convinced otherwise. Basically I'd like to know peoples opinion on the the best language for future web development with regards to longivity, resources, frameworks, hosting etc.

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  • LINQ to SQL: To Attach or Not To Attach

    - by bradhe
    So I'm have a really hard time figuring out when I should be attaching to an object and when I shouldn't be attaching to an object. First thing's first, here is a small diagram of my (very simplified) object model. Edit: Okay, apparently I'm not allowed to post images...here you go: http://i.imgur.com/2ROFI.png In my DAL I create a new DataContext every time I do a data-related operation. Say, for instance, I want to save a new user. In my business layer I create a new user. var user = new User(); user.FirstName = "Bob"; user.LastName = "Smith"; user.Username = "bob.smith"; user.Password = StringUtilities.EncodePassword("MyPassword123"); user.Organization = someOrganization; // Assume that someOrganization was loaded and it's data context has been garbage collected. Now I want to go save this user. var userRepository = new RepositoryFactory.GetRepository<UserRepository>(); userRepository.Save(user); Neato! Here is my save logic: public void Save(User user) { if (!DataContext.Users.Contains(user)) { user.Id = Guid.NewGuid(); user.CreatedDate = DateTime.Now; user.Disabled = false; //DataContext.Organizations.Attach(user.Organization); DataContext.Users.InsertOnSubmit(user); } else { DataContext.Users.Attach(user); } DataContext.SubmitChanges(); // Finished here as well. user.Detach(); } So, here we are. You'll notice that I comment out the bit where the DataContext attachs to the organization. If I attach to the organization I get the following exception: NotSupportedException: An attempt has been made to Attach or Add an entity that is not new, perhaps having been loaded from another DataContext. This is not supported. Hmm, that doesn't work. Let me try it without attaching (i.e. comment out that line about attaching to the organization). DuplicateKeyException: Cannot add an entity with a key that is already in use. WHAAAAT? I can only assume this is trying to insert a new organization which is obviously false. So, what's the deal guys? What should I do? What is the proper approach? It seems like L2S makes this quite a bit harder than it should be...

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  • Dotted Border turns to solid if object is animated with jQuery.

    - by Serg Chernata
    I have a simple setup: an image and then a paragraph with a bit of info that is hidden and then slides up over the image on mouse hover. If I try to apply a border-top that is dashed or dotted onto the paragraph it simply turns into a solid line. Is this a known issue with a fix? I even tried adding the dotted border through jQuery and it still comes out as a solid line. <div class="wrap"> <img src="images/fillertxt.jpg" alt="image" /> <img src="images/filler.jpg" class="front" alt="image" /> <p class="info"> This is a short description with a bit of text. </p> </div> .wrap .info { width:204px; height:50px; background:url(images/infobg.jpg) repeat-x #8d9c0c; color:#f7f5ef; padding:3px; position:absolute; top:142px; left:0; border-top:3px dotted #8d9c0c; } $(document).ready(function(){ $("p.info").css("border-top","3px dotted #8d9c0c"); $(function(){ bindTypeOne(); $("input[type=radio]").click(function(){ if ($(this).attr("rel") == "type1"){ bindTypeOne(); } else if ($(this).attr("rel") == "type2"){ bindTypeTwo(); } }); }); function bindTypeOne() { $("div.wrap").hover(function(){ $(this).children("p.info").stop(); $(this).children(".front").stop().animate({"top":"141px"}, 400); },function(){ $(this).children("p.info").stop(); $(this).children(".front").stop().animate({"top":"0"}, 700); }); }; function bindTypeTwo() { $("div.wrap").hover(function(){ $(this).children(".front").stop(); $(this).children("p.info").stop().animate({"top":"80px","border-top":"3px dotted #8d9c0c"}, 400); },function(){ $(this).children(".front").stop(); $(this).children("p.info").stop().animate({"top":"142px"}, 700); }); }; });

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  • Wpf Composite application

    - by Miral
    Hi, I am new to WPF application and are developing a new WPF application which does 4 different things (4 different modules). I was googling around and found regarding WPF composite application. I was reading through the msdn articles but and a few a different place but all the apps are very large and so understanding them is a bit difficult. Has anyone got a very simple WPF composite application or any link where i can find it out?

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  • PHP queue jobs in centOS

    - by Soe Naung Win
    I wrote a PHP shell script which include queuing jobs in centOS with 'at' command. The queue jobs may vary in time and contents which means the system need to keep quite a large number of jobs. The application logic will also be a bit difficult to setup with cronjob. Is there a limit in number of queue jobs in centOS or is there any alternative way of queuing jobs?

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  • Regex slow on Windows Server 2008

    - by pjmyburg
    Hi I have a situation where my regular expressions compile extremely slowly on Windows Server 2008. I wrote a small console application to highlight this issue. The app generates its own input and builds up a Regex from words in an XML file. I built a release version of this app and ran it both on my personal laptop (running XP) and the Windows 2008 server. The regular expression took 0.21 seconds to compile on my laptop, but 23 seconds to compile on the server. Any ideas what could be causing this? The problem is only on first use of the Regex (when it is first compiled - thereafter it is fine) I have also found another problem - when using \s+ in the regular expression on the same Windows 2008 server, the memory balloons (uses 4GB+) and the compilation of the Regex never finishes. Is there a known issue with Regex and 64 bit .net? Is there a fix/patch available for this? I cannot really find any info on the net, but I have found a few articles about this same issues in Framework 2.0 - surely this has been fixed by now? More info: The server is running the 64 bit version of the .net framework (3.5 SP1) and on my laptop I have Visual Studio 2008 and the 3.5 framework installed. The regular expression is of the following pattern: ^word$|^word$|^word$ and is constructed with the following flags: RegexOptions.IgnoreCase | RegexOptions.Compiled Edit: Here is a code snippet: StringBuilder regexString = new StringBuilder(); if (!String.IsNullOrEmpty(fileLocation)) { XmlTextReader textReader = new XmlTextReader(fileLocation); textReader.Read(); while (textReader.Read()) { textReader.MoveToElement(); if (textReader.Name == "word") { regexString.Append("^" + textReader.GetAttribute(0) + "$|"); } } ProfanityFilter = new Regex(regexString.ToString(0, regexString.Length - 1), RegexOptions.IgnoreCase | RegexOptions.Compiled); } DateTime time = DateTime.Now; Console.WriteLine("\nIsProfane:\n" + ProfanityFilter.IsMatch("test")); Console.WriteLine("\nTime: " + (DateTime.Now - time).TotalSeconds); Console.ReadKey(); This results in a time of 0.21 seconds on my laptop and 23 seconds on the 2008 server. The XML file consists of 168 words in the following format: <word text="test" />

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  • Lazy load pages in UIScrollView

    - by jean
    I have a UIScrollView that contains large images and am using paging to scroll between images. In order to save memory, I am loading only one image before and after the currently visible one and loading/releasing new images after a scroll has completed. The problem occurs when one scrolls quickly and scrollViewDidEndDecelerating is not called. How can I detect continuous scrolling? I could check item location on every scrollViewDidScroll but this seems a bit heavy...

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  • Delay On Assembler?

    - by Norm
    Hey, I want to know how i can do delay (Timer) on assembler 16 bit on PC. Thank You for helping, Norm. OS: Windows CODE: delay: inc bx cmp bx,WORD ptr[time] je delay2 jmp delay delay2: inc dx cmp dx,WORD ptr[time2] je delay3 jmp delay mov bx,0 delay3: inc cx cmp cx,WORD ptr[time3] je Finish_delay jmp delay its not work good i need less complicated code

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  • In WPF, What is the best way to create toolbar buttons so that the images are properly scaled?

    - by T.R.
    Specifically, I'm looking to use the 16*16 32-bit png images included with the VS2008ImageLibrary. I've tried manually setting the Height and Width attributes of the image, adjusting margins and padding, adjusting Stretch and RenderOptions. My attempts to create toolbar buttons have all led to either Improper Scaling (blurry icons), the bottom row of pixels on the icon being truncated, or the toolbar button being improperly sized - not to mention the disappearing icons already mentioned Here. Has anyone found the best way to make standard, VisualStudio/WinForms-style toolbar buttons that display properly in WPF?

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  • echo XML values

    - by danit
    Here is my XML: object(SimpleXMLElement)#1 (2) { ["@attributes"]=> array(1) { ["type"]=> string(5) "array" } ["feed"]=> array(3) { [0]=> object(SimpleXMLElement)#2 (6) { ["title"]=> string(34) "Twitter / Favorites from bob" ["id"]=> string(27) "tag:twitter.com,2007:Status" ["link"]=> array(2) { [0]=> object(SimpleXMLElement)#5 (1) { ["@attributes"]=> array(3) { ["type"]=> string(9) "text/html" ["href"]=> string(38) "http://twitter.com/bob/favorites" ["rel"]=> string(9) "alternate" } } [1]=> object(SimpleXMLElement)#6 (1) { ["@attributes"]=> array(3) { ["type"]=> string(20) "application/atom+xml" ["href"]=> string(40) "http://twitter.com/favorites.atom?page=1" ["rel"]=> string(4) "self" } } } ["updated"]=> string(25) "2010-04-01T10:44:19+00:00" ["subtitle"]=> string(56) "Twitter updates favorited by Dan Humpherson / MoodleDan." ["entry"]=> array(20) { [0]=> object(SimpleXMLElement)#7 (7) { ["title"]=> string(104) "smashingmag: Sikuli: a visual technology to search and automate GUIs using images - http://bit.ly/6ArwzP" ["content"]=> string(104) "smashingmag: Sikuli: a visual technology to search and automate GUIs using images - http://bit.ly/6ArwzP" ["id"]=> string(72) "tag:twitter.com,2007:http://twitter.com/smashingmag/statuses/11389386545" ["published"]=> string(25) "2010-03-31T22:06:41+00:00" ["updated"]=> string(25) "2010-03-31T22:06:41+00:00" ["link"]=> array(2) { [0]=> object(SimpleXMLElement)#27 (1) { ["@attributes"]=> array(3) { ["type"]=> string(9) "text/html" ["href"]=> string(51) "http://twitter.com/smashingmag/statuses/11389386545" ["rel"]=> string(9) "alternate" } } [1]=> object(SimpleXMLElement)#28 (1) { ["@attributes"]=> array(3) { ["type"]=> string(10) "image/jpeg" ["href"]=> string(64) "http://a3.twimg.com/profile_images/572829723/original_normal.jpg" ["rel"]=> string(5) "image" } } } ["author"]=> object(SimpleXMLElement)#29 (2) { ["name"]=> string(17) "Smashing Magazine" ["uri"]=> string(31) "http://www.smashingmagazine.com" } } For the life of me I cannot get my code to work, all I want to do is echo the entry->content string but no matter what I try I get nothing. Can anyone assist an inept PHP n00b?

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  • C# Putting the required DLLs somewhere other than the root of the output

    - by aip.cd.aish
    I am using EmguCV for a project and when our program runs it needs some dlls like "cxcore.dll" etc. (or it throws runtime exceptions). At the moment, I put the files in the root of the output folder (selected "Copy Always" in the file's properties in Visual Studio). However it looks a bit messy, to have about 10 different dlls just there. Is there someway where I can move it to a subfolder in the output folder and it'll still find it.

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  • Use of * in Objective C Syntax

    - by user263097
    I'm struggling a bit with some objective c syntax. Can someone please elaborate on the usage of * in the following instance method. - (IBAction)sliderChanged:(id)sender{ UISlider *slider = (UISlider *)sender; } I realize that we are creating a variable typed as UISlider and then setting it to sender once it is cast as a UISlider. However, I don't understand what the * are for and why UISlider slider = (UISlider)sender; won't work.

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  • Microsoft Robotics Studio with Wine ? Is it possible ?

    - by Arkapravo
    I am using Ubuntu 9.10 and I am a bit of a robotics enthusiast. I have used KiKS (in MATLAB for simulating Khepera robots), MobotSim (in Windows, simulates a point like robot using a BASIC editor) and Player Stage/Gazebo (with C/C++ on Ubuntu Linux). My question, can MS Robotics Studio be installed in Ubuntu Linux using Wine (I am using 1.1.31) ? Has anyone done it ? Thanks for your reply !

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  • Return ArrayList from .net web service to android application using kSoap

    - by benjamin schultz
    My web service is returning quite a bit of data, so i'm storing it in an arraylist and returning that to my application. I don't know whether or not this is the preferred method or not. When the arraylist is returned and displayed in my application, it also displays the arraylists "anyType" section. I'm new to this whole process so i'm sure i'm missing something somewhere or going about this incorrectly. Can anyone point me in the right direction please?

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  • Fluent interface and task based applications

    - by Mmarquee
    We have a number of applications that are now looking tired and a bit drab. Looking at the MS style fluent interface looks nice but seems (to me) to be more document based rather than task based. Is there a nice 'modern' ui style that lends itself to task based applications?

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  • How to make ARGB transparency using bitwise operators.

    - by Smejda
    I need to make transparency, having 2 pixels: pixel1: {A, R, G, B} - foreground pixel pixel2: {A, R, G, B} - background pixel A,R,G,B are Byte values each color is represented by byte value now I'm calculating transparency as: newR = pixel2_R * alpha / 255 + pixel1_R * (255 - alpha) / 255 newG = pixel2_G * alpha / 255 + pixel1_G * (255 - alpha) / 255 newB = pixel2_B * alpha / 255 + pixel1_B * (255 - alpha) / 255 but it is too slow I need to do it with bitwise operators (AND,OR,XOR, NEGATION, BIT MOVE)

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  • App.Config or XAML

    - by Florian Doyon
    Hi ladies(?) and gents, I am currently evaluating my options for a rewrite of the projects I'm working on and I am a bit miffed by the stringly-typed nature of our app.config files. I'd like to move to a more structured approach, so I have two options: Use custom SectionHandlers in the app.config Scrap app.config and use XAML instead. I'd like to get your opinions and horror stories on this, what are the pros and cons of using XAML for this? Cheers, Florian

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  • Handling empty UITableView in UITableViewController

    - by Travis
    I have a UITableViewController that is populated with some data. If the data comes back empty, obviously the table is empty. What is the appropriate method to use to handle this case and put up something like a UILabel with "No Data Available". I have been using - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section but it's proven a bit cumbersome and I'm not longer confident it's the best place to do this.

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  • Map /dev/bus/usb node to /sys node on Linux

    - by Cody Brocious
    I'm using libusb to find and access a USB device, but once I get the information I need from there, I need to map it to a /sys node. This could be to the actual USB bus it's on, the /sys/bus/usb-serial node (which is where I'm going to get eventually), or effectively anywhere else since I can walk the tree from there. I can get to a /dev/bus/usb node easily enough, but I'm a bit lost from there. What would be the best route to perform this mapping?

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  • setTimeout() not executing

    - by Ben Shelock
    I've got this simple function which displays a message to the user. If I add the timeout parameter it will slide back up automatically if not the user has to click it to get rid. But the timeout bit isn't working. function feedback(text, timeout){ $('#feedback').text(text).slideDown('fast'); $('#feedback').click(function(){ $(this).slideUp(); }); if(timeout){ setTimeout(function(){ $('#feedback').slideup(); }, timeout); } }

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  • Executing Custom Actions immediately in WIX

    - by jbloomer
    Is there any way to execute a custom action in WIX as soon as the first dialog (welcome) appears? The requirement is to check prerequisites, and some of those require a custom action. The custom action could be executed as we click to the next dialog, but then the standard WIX prereqs are determined apart from our custom prereq. (The custom action we need is to check that IIS 6 Metabase Compatibility is turned on and a registry search does not work on x64 machines with a 32-bit installer)

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