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• I can't get mailto links to open the Mail app from Mobile Safari when using jQTouch. What could be w

  - by Mark B

  Hi all, I'm developing an iPhone web app using jQTouch, and it contains a simple mailto: link to a valid email address, which should launch the iPhone mail application when tapped—but it doesn't. If I visit a "normal" web page in Mobile Safari which contains the exact same link, and tap on it, I get the expected result: the mail app pops up with the correct email address in the To field. Here's the link HTML (with the address changed) just in case I'm going nuts and have made a stupid mistake, but it appears perfectly fine: <p><a href="mailto:[email protected]">[email protected]</a></p> Has anyone come across this when using jQTouch? Or can anyone at least suggest a way that I can debug this? At the moment when I tap the non-working link it flashes red (the active link state) and absolutely nothing else happens.

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• Where should I put WPF specific code when using MVVM?

  - by Surfbutler

  I'm just getting up to speed on MVVM, but all the examples I've seen so far are binding View controls to simple non-WPF specific data types such as strings and ints. However in our app I want to be able to set a button's border brush based on a number in the Model. At the moment, I translate the number into a brush in the ViewModel to keep the View XAML only, but is that right? I don't like putting WPF specific code in the ViewModel, but equally I don't like the idea of putting code-behind on my View panel. Which is the best way? Thanks

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• Git: how do you merge with remote repo?

  - by Marco

  Please help me understand how git works. I clone my remote repository on two different machines. I edit the same file on both machines. I successfully commit and push the update from the first machine to the remote repository. I then try to push the update on the second machine, but get an error: ! [rejected] master -> master (non-fast-forward) I understand why I received the error. How can I merge my changes into the remote repo? Do I need to pull the remote repo first?

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• CSS Container not growing with grid?

  - by CmdrTallen

  Hi, I have a container background defined in CSS like this; .container { background:#fff; margin-left:auto; margin-right:auto; position: relative; width:970px; border:1px solid #000; padding:5px 10px; } The problem is I have a jqGrid put in the bottom of the container (near the bottom edge) and when its initially drawn it does fit inside the container panel and looks correct. Something like this (please pardon my non-l33t graphic skillz): But then when I populate the grid with rows it outgrows the container and it looks really tacky, something like this (I circled the original container background edges): I am sure its something I am doing wrong with the CSS. Any advice would be appreciated. EDIT: The problem isn't the width its the height of the container being overlapped by the new height of the now populated grid

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• Plugin architecture in .net: unloading

  - by henchman

  Hello everybody, I need to implement a plugin architecture within c#/.net in order to load custom user defined actions data type handling code for a custom data grid / conversion / ... from non-static linked assembly files. Because the application has to handle many custom user defined actions, Iam in need for unloading them once executed in order to reduce memory usage. I found several good articles about plugin architectures, eg: ExtensionManager PluginArchitecture ... but none of them gave me enough sausage for properly unloading an assembly. As the program is to be distributed and the user defined actions are (as the name states) user defined: how to i prevent the assembly from executing malicious code (eg. closing my progra, deleting files)? Are there any other pitfalls one of you has encountered?

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• Convert Word doc to HTML programmatically in Java

  - by kaychaks

  Hi, I need to convert a Word document into HTML file(s) in Java. The function will take input an word document and the output will be html file(s) based on the number of pages the word document has i.e. if the word document has 3 pages then there will be 3 html files generated having the required page break. I searched for open source/non-commercial APIs which can convert doc to html but for no result. Anybody who have done this type of job before please help. Thanks

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• Grails/Spring HttpServletRequest synchronization

  - by Jeff Storey

  I was writing a simple Grails app and I have a spot in a gsp where one of my java beans in modified. <g:each in="${myList}" status="i" var="myVar"> // if the user performs some view action, update one of the myVar elements </g:each> This works, but I don't think it's quite threadsafe. myList is an http request variable but in cases of pages that use ajax (or other client side manipulations), it is possible for two threads to be modifying the same request scope variable The Spring AbstractController class provides a setSynchronizeOnSession method. Does grails provide any equivalent functionality? If not, what's the best way to protect this non-threadsafe mutation? thanks, Jeff

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• CSS: semi-transparent background, but not text

  - by Stijn Sanders

  Is there a way in CSS to make the background of an element semi-transparent, but still have the text of the element non-transparent? (Without separating the text and background in two elements positioned over eachother.) I've tried <p style="position:absolute;background-color:green;filter:alpha(opacity=60);opacity:.6;"><span style="color:white;filter:alpha(opacity=100);opacity:1;">Hello world</span></p> But it looks like child elements are subjected to the opacity of their parent(s), so 'opacity:1' is still drawn as 'opacity:.6' from the parent.

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• Method hiding with interfaces

  - by fearofawhackplanet

  interface IFoo { int MyReadOnlyVar { get; } } class Foo : IFoo { int MyReadOnlyVar { get; set; } } public IFoo GetFoo() { return new Foo { MyReadOnlyVar = 1 }; } Is the above an acceptable way of implementing a readonly/immutable object? The immutability of IFoo can be broken with a temporary cast to Foo. In general (non-critical) cases, is hiding functionality through interfaces a common pattern? Or is it considered lazy coding? Or even an anti-pattern?

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• Where/When do C# and the .NET Framework fail to be the right tool?

  - by Nate Bross

  In my non-programming life, I always attempt to use the appropriate tool for the job, and I feel that I do the same in my programming life, but I find that I am choosing C# and .NET for almost everything. I'm finding it hard to come up with (realistic business) needs that cannot be met by .NET and C#. Obviously embedded systems might require something less bloated than the .NET Micro Framework, but I'm really looking for line of business type situations where .NET is not the best tool. I'm primarly a C# and .NET guy since its what I'm the most comfertable in, but I know a fair amount of C++, php, VB, PowerShell, batch files, and Java, as well as being versed in the web technologes (JavaScript, HTML, and CSS). But I'm open minded about it my skill set and I'm looking for cases where C# and .NET are not the right tool for the job. I choose .NET and C# because I'm comfortable with it, but I'm looking for cases where it isn't appropriate.

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• Is AMQP suitable as both an intra and inter-machine software bus?

  - by Bwooce

  I'm trying to get my head around AMQP. It looks great for inter-machine (cluster, LAN, WAN) communication between applications but I'm not sure if it is suitable (in architectural, and current implementation terms) for use as a software bus within one machine. Would it be worth pulling out a current high performance message passing framework to replace it with AMQP, or is this falling into the same trap as RPC by blurring the distinction between local and non-local communication? I'm also wary of the performance impacts of using a WAN technology for intra-machine communications, although this may be more of an implementation concern than architecture. War stories would be appreciated.

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• Syncronize an SVN repo (svnsync) with encoding errors

  - by Hamish

  Is it possible to fix/bypass non-UTF8 encoded svn:log records when syncronizing repositories with svnsync? Background I'm in the process of taking over the maintenance of an open source module that is stored within a large (well over 10,000 revisions) subversion (1.5.5) repository. I do not have admin access to the remote repository to dump/filter/load the module. The old repository is being discontinued and I am trying to sync the original sub module to my local (1.6+) repository with svnsync. For example: svnsync file://home/svn/temp-repo/ http://path.to.repo/modulename/ The problem is that the old repository didn't enforce UTF8 encoding and I'm hitting errors like: svnsync: Cannot accept 'svn:log' property because it is not encoded in UTF-8 I can't modify the log property in the source repository so I need to somehow modify or ignore the property value when the encoding is unknown/invalid. Any ideas? For example, is it possible to write a pre-revprop-change script to modify the log property in transit?

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• Using unicodedata.normalize in Python 2.7

  - by dpitch40

  Once again, I am very confused with a unicode question. I can't figure out how to successfully use unicodedata.normalize to convert non-ASCII characters as expected. For instance, I want to convert the string u"Cœur" To u"Coeur" I am pretty sure that unicodedata.normalize is the way to do this, but I can't get it to work. It just leaves the string unchanged. >>> s = u"Cœur" >>> unicodedata.normalize('NFKD', s) == s True What am I doing wrong?

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• Java String Replace and null characters

  - by praspa

  Testing out someone elses code (of course it was ...) , I noticed a few JSP pages printing funky non-ascii characters. Taking a dip into the source I found this tidbit. // remove any periods from first name e.g. Mr. John --> Mr John firstName = firstName.trim().replace('.','\0'); Does replacing a character in a String with a null character even work in Java? I know that '\0' will terminate a c-string. Would this be the culprit to the funky characters? Thanks PR

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• Java's ThreadPoolExecutor equivalent for C#?

  - by chillitom

  Hi Guys, I used to make good use of Java's ThreadPoolExecutor class and have yet to find a good equivalent in C#. I know of ThreadPool.QueueUserWorkItem which is useful in many cases but no good if you want to control the number of threads assigned to a task or have multiple individual queues for different task types. For example I liked to use a ThreadPoolExecutor with a single thread to guarantee sequential execution of asynchronous calls.. Is there an easy way to do this in C#? Is there a non-static thread pool implementation? Thanks, T.

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• C# method contents regex validation

  - by user258651

  I need to validate the contents of a C# method. I do not care about syntax errors. I do care about characters that will invalidate parsing of the rest of the code. For example: method() { /* valid comment */ /* <-- bad for (i..) { } for (i..) { <-- bad } I need to validate/fix any non-paired characters. This includeds /* */, { }, and maybe others. How should I go about this?

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• PayPal testing without using Sandbox

  - by Webbo

  I am developing a website in PHP that accepts PayPal payments. It uses the IPN from PayPal and has a custom payment template etc etc. It all works great through the Sandbox server but when it comes to showing my client, I don't want to have to tell them to login to/create a Sandbox account, create a buyer account and make a payment - he hasn't got time for that and probably won't be able to do it. Therefore, my question is - is there any simple way that I can show my client the PayPal integration in "test mode" without him using the sandbox? I realise that I can set the transaction value to 0.01 and just test on the live PayPal server but that isn't an ideal solution. Cheers! Edit: Just to better explain what I mean, this is what my client sees when he first goes to checkout; As you can see, he has to login to his Sandbox account before then purchasing the item using the buyer email that he sets up. It's just confusing and totally non user-friendly.

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• CString error, 'CString': is not a member of 'ATL::CStringT<BaseType, StringTraits>'

  - by flavour404

  Hi, I am trying to do this: #include <atlstr.h> CHAR Filename; // [sp+26Ch] [bp-110h]@1 char v31; // [sp+36Ch] [bp-10h]@1 int v32; // [sp+378h] [bp-4h]@1 GetModuleFileNameA(0, &Filename, 0x100u); CString::CString(&v31, &Filename); But I am getting the compiler error C2039:'CString': is not a member of 'ATL::CStringT' This is a non MFC based dll, but according to the docs you should be able to use CString functionality with the include #include atlstr.h how do I make it work? Thanks

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• Does the order I declare pointers really matter in C? getcwd() problem...

  - by chucknelson

  On a Solaris 5.8 machine, I have the following code: [non-working code] char *buf; char *dir; size_t psize; psize = (size_t) 1024; dir = getcwd(buf, psize); On this unix machine, the above does not work and I get a segmentation fault when trying to run the program. It only works if I declare dir before buf: [working code] char *dir; char *buf; ... dir = getcwd(buf, psize); When using another flavor of Unix, such as Mac OS X, I don't get any of these what seem to be very strict rules on how to write the code. Can anyone explain what's going on with the above example? Thanks!

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• My site was recently attacked. What do I do?

  - by ChrisH

  This is a first for me. One of the sites I run was recently attacked. Not at all an intelligent attack - pure brute force - hit every page and every non-page with every extension possible. Posted with garbage data to every form and tried to post to some random urls too. All tod, 16000 requests in one hour. What should I do to prevent/alert this kind of behavior? Is there a way to limit the request/hr for a given ip/client? Is there a place I should be reporting the user to? They appear to be from China and did leave what seems like a valid e-mail.

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• How can I write a power function myself?

  - by Koning WWWWWWWWWWWWWWWWWWWWWWW

  Since I was 12, I was always wondering how I can make a function which calculates the power (e.g. 23) myself. In most languages these are included in the standard library, mostly as pow(double x, double y), but how can I write it myself? I was thinking about for loops, but it think my brain got in a loop (when I wanted to do a power with a non-integer exponent, like 54.5 or negatives 2-21) and I went crazy ;) So, how can I write a function which calculates the power of a real number? Thanks

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• Get pointer to member function from within member function in C++

  - by Eli

  Currently in the program I am attempting to write I need to be able to get a pointer to a member function within a member function of the same class. The pointer needs to be passed to a function as a void (*)(). Example: //CallFunc takes a void (*)() argument class testClass { public: void aFunc2; void aFunc1; } void testClass:aFunc2(){ callFunc(this.*aFunc1); // How should this be done? } void testClass:aFunc1(){ int someVariable = 1; } I'm trying to do this in GCC 4.0.1. Also, the member function being called can't be static because it references non-static variables in the class that it is part of.

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• Places to start for system programmer transitioning to web programming

  - by Sean Ochoa

  So here's where I'm coming from: My background is in C#, C++, VB Script, php, javascript, PowerShell, T-SQL, and VB 6. I have some experience with python, and a brief introduction to Ruby On Rails. At work, we're transitioning to a web based UI in the next year or so, but in asp.net & SilverLight. I would like to, if possible, learn more open source web technologies on the side. And, hopefully, in a year and a half or so, I would like to transition to a more open source web technology position. I found that I do really like python, but I'm open to pretty much anything. And yes, I do know Linux (ubuntu and gentoo), as well. And, here's my question: What technologies, frameworks, IDEs, or systems should I be highly proficient in to become a prime candidate for a position doing web application development using non-Microsoft technologies?

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• Python - converting wide-char strings from a binary file to Python unicode strings...

  - by Mikesname

  It's been a long day and I'm a bit stumped. I'm reading a binary file that contains lots of wide-char strings and I want to dump these out as Python unicode strings. (To unpack the non-string data I'm using the struct module, but I don't how to do the same with the strings.) For example, reading the word "Series": myfile = open("test.lei", "rb") myfile.seek(44) data = myfile.read(12) # data is now 'S\x00e\x00r\x00i\x00e\x00s\x00' How can I encode that raw wide-char data as a Python string? Edit: I'm using Python 2.6

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• Double pointer const-correctness warnings in C

  - by Michael Koval

  You can obviously cast a pointer to non-const data to a a pointer of the same type to const data: int *x = NULL; int const *y = x; Adding additional const qualifiers to match the additional indirection should logically work the same way: int * *x = NULL; int *const *y = x; /* okay */ int const *const *z = y; /* warning */ Compiling this with GCC or Clang with the -Wall flag, however, results in the following warning: test.c:4:23: warning: initializing 'int const *const *' with an expression of type 'int *const *' discards qualifiers in nested pointer types int const *const *z = y; /* warning */ ^ ~ Why does adding an additional const qualifier "discard qualifiers in nested pointer types"?

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