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Articles indexed in June 2010

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  • How to install Visual Studio 2008 after Visual Studio 2010 without harming anything?

    - by Ivan
    After full fresh Windows XP system reinstallation, I've installed SQL Server 2008 R2 and Visual Studio 2010. Soon I've found that I also have some very handicapped version of VS 2008 IDE installed as a part of VS2010 or SQLServer. At the same time there are a lot of interesting projects on the Web still targeting VS2008. Can I install a full-featured VS 2008 now, without it breaking something (for example by replacing some files with older versions)?

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  • URL "fragment identifier" semantics for HTML documents

    - by Pointy
    I've been working with a new installation of the "MoinMoin" wiki software. As I was playing with it, typing in mostly random test pages, I created a link with a fragment blah blah see also [[SomeStuff#whatever|some other stuff about whatever]] Then I needed to figure out how to create the anchor for that "whatever" fragment identifier. I don't recall having to do that with MediaWiki, so I had to dig around, but finally I found that MoinMoin has an "Anchor" macro: == Whatever == <<Anchor(whatever)>> Looking at the generated HTML, I was surprised to see an empty <span> tag with an "id" value of "whatever". I expected that it'd be an <a> tag with a "name" attribute of "whatever". I dug around and found the source, and there's a comment that says they changed it from an <a> tag in order to avoid some IE problem with <pre> sections. This confused me — not because of the IE thing, but because it looked to me as if their "fix" had left the whole anchor mechanism completely broken. Much to my surprise, however, further testing indicated that it worked fine. I wrote a test page with 300 <span> tags all with "id" values, and I further shocked myself when Firefox behaved exactly as I would have expected it to had I used <a> tags. It also worked when I changed all the <span> tags to <em>. So by this time, you're either as surprised as I was, or else you're thinking "how can somebody that dumb have so many reputation points?" If you're in the second category, is it really the case that I've been typing in HTML for about 15 years now — a lot of HTML — and it's somehow escaped my notice that browsers use the HTML fragment to find any sort of element with a matching "id"? mind status: blown

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  • DrawString with character wrapping

    - by Roy
    Hi all, I'm creating a fatal error dialog for a Windows Mobile Application using C#. The problem is when I try to draw the stacktrace using DrawString, half of my stacktrace is getting clipped off because DrawString uses word wrapping instead of character wrapping. For those who don't understand the explanation: When i draw the stacktrace, it comes out as this: at company.application.name.space.Funct at company.application.name.Function(St at etc. etc. And i want it to print like this: at company.application.name.space.Funct ion(String sometext, Int32 somenumbe r) at company.application.name.Function(St ring sometext, Int32 somenumber, Int 32 anothernumber) at etc. etc. Is this possible in Csharp?

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  • Set tag and hidden for objects on custom UITableViewCell

    - by Rob
    I am re-using Apple's AdvancedTableViewCells example to create a custom, fast-scrolling tableview. Specifically, I am using their CompositeSubviewBasedApplicationCell method which draws the content on the tableviewcell with drawRect Everything works, but how do you hide a label or set the tag for a label or image using their method? Doing it this way is pretty new to me (without IB), so I apologize ahead of time if it's something easy. The code that sets the cell content is: - (void)drawRect:(CGRect)rect { [_cell.animalIcon drawAtPoint:CGPointMake(5.0, 5.0)]; [_cell.animalName drawAtPoint:CGPointMake(93.0, 25.0)]; _highlighted ? [[UIColor whiteColor] set] : [[UIColor colorWithWhite:0.23 alpha:1.0] set]; [_cell.animalDescription drawAtPoint:CGPointMake(100.0, 54.0) withFont:[UIFont boldSystemFontOfSize:13.0]]; [_cell.animalNameString drawAtPoint:CGPointMake(93.0, 5.0) withFont:[UIFont boldSystemFontOfSize:13.0]]; }

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  • Django/jquery: Address forms - dyamically adding state drop down list if country is United States?

    - by User
    I have a django html form for address information. There is standard street, city, state/province, postal code, country fields. The country field is a drop down list. How can I make the state/province field a drop down list if the selected country is united states and a free form text box if the country is anything else? I'd prefer not to have to do a round trip to the server so probably through jquery?

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  • Visual Studio 2008 Explicit Reference Error

    - by Alan
    I have a project which references a dll in the same solution (called "Common"). Common has two types of errors with the same names but different namespaces i.e. Common.Login.UserDeleted Common.Imaging.UserDeleted When I type UserDeleted visual studio recognizes both of these and asks for which it is ("ambiguous reference"). I right-click UserDeleted and select one of the two above, yet it then says that the type or reference doesn't exist! It doesn't make any sense. Why is this happening? I can't compile my program until I find a solution to this, thanks

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  • Saving image with Date and Time

    - by Meko
    I am trying to save image captured from web cam with current time.Like 06.06.2010 22:29:52.jpg But compiler does not allow time format 22:20:30 . I searched but I could not find how to write time like 22.29.59 or how can solve this problem ? String photoTime = DateTime.Now.ToString(); String SuspiciousPath = Path.Combine(PhotoPath+"//suspicious",photoTime+".jpg"); FirstPersonTestImage.Save(SuspiciousPath);

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  • Transfer hard-drive with windows XP to another computer. On booting, asks to activate xp

    - by Jesse
    I had an old computer sitting around that I have not been able to boot successfully. I moved the hard drive and placed it in my newer computer. If I boot linux, I can mount the XP hard-drive and access the files. If I try to boot from the XP hard-drive, it will boot, but it asks me to activate windows before proceeding. If I continue, I get the "activation window" with two images/icons(?) which are failing to load. Nothing else happens. The version of windows came with the original computer the hard-drive came from, so I'm not sure if I'm married to the broken computer (I hope not!). Is there anything I can do in order to boot into XP from the new computer?

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  • Questions about the MVC architecture

    - by ah123
    I started coding a considerably complicated web application, and it became quite a mess. So I figured I'd try to organize it in a better way. MVC seemed appropriate. I've never used MVC before, and researching about it I'm trying to consolidate a better perception of it (and my questions obviously reflect what I think I've learned so far). My questions are slightly JavaScript oriented: What object should make "AJAX" requests? The Controller or the Model? (seperation -- should the Model just store/manipulate the data, should it not care/know where the data came from, or should it be the one fetching it?) Should the Model call View functions providing them with data as arguments or should the View query (reference) the Model within itself? (seperation principles in mind, "the View shouldn't care/know where it gets the data from" -- is that correct?) In general, should the View "know" of the Model's existance, and vice-versa? Is the Controller the only thing gluing them together or is that simply incorrect? (I really doubt that statement is generally correct) There's a good chance I'd want to port this into a desktop/mobile application, so I would like to seperate components in a way that will allow me to achieve that task, replacing the current source of the data, HTTP requests, with DB access, and replacing the View. Maybe every approach that I've asked about is still "valid" MVC and it's just up to me to choose. I understand that nothing is set in stone, I'm just trying to have a (better) general idea in my head.

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  • JTextField that has inner fields or preformated format, something like the ip field in windows

    - by dimitar
    Hello guys, i want to create a text field that will be for date and will have dd.mm.YYYY format. Now what i want to do is the user to type only the numbers, not the dots to. So the field would be like: _ _. _ _ . _ _ _ _ So when the user wants to type the date: 15.05.2010 for example, he will only type the numbers in the sequence 15052010. Also i would like, when he preses on left or right arrow, the cursor to go from one field(not JTextField, but field in the JTextField). So lets say i have JTextField with text in it: 15.05.2010, so if user is on the beginning and he preses right arrow, the cursor to go to the .05 field. I hope you understand me 'cos right now i don't any idea how to make this, or at least how to look for it on google. Thank you.

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  • Will html5 change everything for designers?

    - by Sean Thompson
    What impact do you think html5 will have on the workflow/way graphic design is done for the web? Right now most designers stay in an Adobe tool, doing most of the design work there, and implement some elements with graphics and some with code. Checking out http://www.apple.com/html5/ it seems that almost everything done in a graphic can be done in code. Will designers have to learn very advanced levels of html5 and do the actual design work in the browser or do you see a more "designer friendly" gui being made for html/graphics work? Will tools like photoshop evolve in a way that handles this new lack of image files?

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  • Canon MF3200 Printer Problems [closed]

    - by Derick K.
    I bought a Canon MF3200 and used it on an old Windows laptop. The laptop broke, and now I'm trying to setup the printer on a laptop with Windows 7. I downloaded the new driver, and Windows was able to install it and mark it "Ready to Go." But whenever I try to print, an error comes up and it doesn't print. I tried to troubleshoot, to no avail. What else can I do? Any ideas on what the error might be?

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  • Efficiently Determine if EF 4 POCO Already in ObjectSet

    - by Eric J.
    I'm trying EF 4 with POCO's on a small project for the first time. In my Repository implementation, I want to provide a method AddOrUpdate that will add a passed-in POCO to the repository if it's new, else do nothing (as the updated POCO will be saved when SaveChanges is called). My first thought was to do this: public void AddOrUpdate(Poco p) { if (!Ctx.Pocos.Contains<Poco>(p)) { Ctx.Pocos.AddObject(p); } } However that results in a NotSupportedException as documented under Referencing Non-Scalar Variables Not Supported (bonus question: why would that not be supported?) Just removing the Contains part and always calling AddObject results in an InvalidStateException: An object with the same key already exists in the ObjectStateManager. The existing object is in the Unchanged state. An object can only be added to the ObjectStateManager again if it is in the added state. So clearly EF 4 knows somewhere that this is a duplicate based on the key. What's a clean, efficient way for the Repository to update Pocos for either a new or pre-existing object when AddOrUpdate is called so that the subsequent call to SaveChanges() will do the right thing? I did consider carrying an isNew flag on the object itself, but I'm trying to take persistence ignorance as far as practical.

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  • Can I use "Online Backup" to backup my DVS instead of pushing to an external repo?

    - by Matt Brailsford
    Hi Guys, I'm currently signed up with a third party service that hosts my mercurial repositories as a central hub to push my changes to as a sort of backup. Now, I'm looking at a system to backup my laptop and am concidering Mozy. I'm a loan developer, and work on a laptop and am usualy connected to my internet via wifi with my laptop only really being on when I'm working, so feel something like Mozy is my best option. My question is, if I'm the only developer, could I get away with just using local mercurial repos and using Mozy to backup everything up? Rather than pushing to an external repo? Many thanks Matt

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  • Syntax to change the value of a cached object property

    - by Craig
    In an ASP.NET 3.5 VB web app, I successfully manage to cache an object containing several personal details such as name, address, etc. One of the items is CreditNum which I'd like to change in the cache on the fly. Is there a way to access this directly in the cache or do I have to destroy and rebuild the whole object just to change the value of objMemberDetails.CreditNum? The cache is set using: Public Shared Sub CacheSet(ByVal key As String, ByVal value As Object) Dim userID As String = HttpContext.Current.User.Identity.Name HttpContext.Current.Cache(key & "_" & userID) = value End Sub

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  • How to store a reference to an integer in C#?

    - by Jonathon Reinhart
    Hello everyone - tell me how to make this work? Basically, I need an integer reference type (int* would work in C++) class Bar { private ref int m_ref; // This doesn't exist public A(ref int val) { m_ref = val; } public void AddOne() { m_ref++; } } class Program { static void main() { int foo = 7; Bar b = new Bar(ref foo); b.AddOne(); Console.WriteLine(foo); // This should print '8' } } Do I have to use boxing?

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  • assigning in system of differential equations

    - by Alireza
    hi every one! when i solve numerically a system of two differential equations: s1:=diff(nDi, t)=...; s2:=diff(nT, t)=...; ics:={...}; #initial condition. sys := {s1, s2, ics}: sol:=dsolve(sys,numeric); with respect to "t",then the solution (for example)for "t=4" is of the form, sol(4): [t=4, n1(t)=const1, n2(t)=const2]. now, how is possible to use values of n1(t) and n2(t) for all "t"'s in another equation, namely "p", which involved n1(t) or n2(t)(like: {p=a+n1(t)*n2(t)+f(t)},where "a" and "f(t)" are defined), and to plot "p" for an interval of "t"?

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  • Non-reentrant C# timer

    - by Oak
    I'm trying to invoke a method f() every t time, but if the previous invocation of f() has not finished yet, wait until it's finished. I've read a bit about the available timers (this is a useful link) but couldn't find any good way of doing what I want, save for manually writing it all. Any help about how to achieve this will be appreciated, though I fear I might not be able to find a simple solution using timers. To clarify, if x is one second, and f() runs the arbitrary durations I've written below, then: Step Operation Time taken 1 wait 1s 2 f() 0.6s 3 wait 0.4s (because f already took 0.6 seconds) 4 f() 10s 5 wait 0s (we're late) 6 f() 0.3s 7 wait 0.7s (we can disregard the debt from step 4) Notice that the nature of this timer is that f() will not need to be safe regarding re-entrance, and a thread pool of size 1 is enough here.

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