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• Button in gridview

  - by Rajeev

  I'm using a button in a template field of gridview. On button click I want to redirect to another page but it throws an exception: Invalid postback or callback argument. Event validation is enabled using in configuration or <%@ Page EnableEventValidation="true" % in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation. What can I do to resolve this problem?

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• Fortran intent(inout) v's no intent

  - by Andrew Walker

  Good practice dictates that subroutine arguments in Fortran should each have a specified intent (i.e. intent(in), intent(out) or intent(inout) as described this question): subroutine bar (a, b) real, intent(in) :: a real, intent(inout) :: b b = b + a ... However, not specifying an intent is valid Fortran: subroutine bar (a, b) real, intent(in) :: a real :: b b = b + a ... Are there any real differences beyond compile time checking for an argument specified as intent(inout) and an argument without a specified intent? Is there anything I should worry about if I'm retrofitting intents to older, intent free, code?

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• Know if a variable is a native object in javascript

  - by mck89

  Hi, is there a way to know if a variable passed into a function is a native object? I mean, i have a function that requires only native objects as arguments, for every other type of variable it throws an error. So: func(Array); //works func(String); //works func(Date); //works func(Object); //works ... func([]); //Throwr error func({}); //Throws error I want to know if there's a way to distinguish between native objects and everything else.

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• Using local classes with STL algorithms

  - by David Rodríguez - dribeas

  I have always wondered why you cannot use locally defined classes as predicates to STL algorithms. In the question: Approaching STL algorithms, lambda, local classes and other approaches, BubbaT mentions says that 'Since the C++ standard forbids local types to be used as arguments' Example code: int main() { int array[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }; std::vector<int> v( array, array+10 ); struct pair : public std::unary_function<int,bool> { bool operator()( int x ) { return !( x % 2 ); } }; std::remove_if( v.begin(), v.end(), pair() ); // error } Does anyone know where in the standard is the restriction? What is the rationale for disallowing local types?

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• Does .NET Regex support global matching?

  - by Dave

  I haven't been able to find anything online regarding this. There's RegexOptions, but it doesn't have Global as one of its options. The inline modifiers list also doesn't mention global matching. In a nutshell, I've got a regex to parse something like --arga= "arg1" --argb ="arg2" into separate argument name/value pairs using this regex: --(\\w+)\\s*=\\s*\"(\\w+)\"\\s* but the .NET Regex class doesn't do it globally (iteratively). So in order for me to get this to work, I'd have to do a match, then remove this from the argument string, and loop over and over again until I've exhausted all of the arguments. It would be nicer to run the regex once, and then loop over the match groups to get the name value pairs. Is this possible? What am I missing?

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• How to stop nant exec task putting ( ) around command line

  - by Sam

  I have looked through the nant documentation and sourceforge faq and can't find the answer to this question. The exec task in nant puts ( ) around the command line parameters it generates, so for example this task below would generate: mallow ( -1 ) <exec program="${build.tools.wix}\mallow.exe" workingdir="${build.out.xxx}"> <arg value="-1" /> </exec> The other open source tool I'm using - mallow - cannot handle this. Does anyone know of a way to stop nant putting the ( ) around the arguments? Thanks.

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• Setting up java configurations in eclipse..Param files

  - by Charlie

  I'm going to be using ECJ for doing genetic programming and I haven't touched java in years. I'm working on setting up the eclipse environment and I'm catching a few snags. The ECJ source has several packages, and several sample programs come along with it. I ran one sample program (called tutorial1) by going to the run configurations and adding -file pathToParamsFile to the program arguments. This made it point to the params file of that tutorial and run that sample. In a new example I am testing (from the package gui) there are TWO params files. I tried pointing to just one param file and a program ran in the console, but there was supposed to be a GUI which did not load. I'm not sure what I'm doing wrong. Any help would be greaaatly appreciated.

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• C# out parameter value passing..

  - by Pandiya Chendur

  I am using contactsreader.dll to import my gmail contacts... One of my method has out parameter... I am doing this, Gmail gm = new Gmail(); DataTable dt = new DataTable(); string strerr; gm.GetContacts("[email protected]", "******", true, dt,strerr); // It gives invalid arguments error.. and my gmail class has, public void GetContacts(string strUserName, string strPassword,out bool boolIsOK, out DataTable dtContatct, out string strError); Am i passing the correct values for out parameters...

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• Invoking MSYS bash from Windows cmd

  - by daevius

  I'm using GCC on Windows7 (using the TDM's build). I installed MSYS to be able to execute make and compile using makefiles. However, it is tedious to every time start up the MSYS bash shell, navigate to the directory of the project and run make. What I want is to automate this process. I prefer to have a batch file in Windows, or something similar, from which I then invoke the MSYS bash. It should navigate to the directory the batch file resides in and call "make". Is this possible? Can I send commands to MSYS bash from cmd (like navigation / invoking make)? Or can I let the MSYS bash run a "bash script", which sets the commands to be executed much like batch scripts? Thank you. PS: this is something similar as this question: http://stackoverflow.com/questions/2546757/executing-msys-from-cmd-exe-with-arguments

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• alternatives to System.Diagnostics.Process.Start when command is too long

  - by Frank Schwieterman

  I have some code which is generating a rather long command that is being sent to System.Diagnostics.Process.Start(). The call fails with a Win32Exception, message "The filename or extension is too long". The path to the program itself is not very long, but the parameters passed in are quite long. I am calling the version where an instance of ProcessStartInfo is passed as the parameter, and in this case its the ProcessStartInfo.Arguments .Field that is very long. (other parameters: CreateNoWindow = true, UseShellExecute = false, RedirectStandardError = true). It looks like the exception is coming from a call to win32 function CreateProcess. Does anyone have an idea of another way to start the process?

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• How to set up Flex Unit 4

  - by macke

  Does anyone know of any guides or any sort of documentation on how to set up the new Flex Builder 4 beta? I've been pulling my hair all day long, none of my tests are executed and I can't for the life of me understand what's wrong. There are no errors at all. It's as if the metadata tags are not recognized, is there some special compiler argument to recognize them? I seem to remember that this is not necessary as long as the swc files that are included were compiled with said arguments. I'm using Beta 1 of Flex Unit 4 which can be found here: http://opensource.adobe.com/wiki/display/flexunit/FlexUnit+4+feature+overview I'm actually using the very same code that is included with that package to run the tests, but no tests are executed. Neither mine nor the ones included in the FU4 package. The lack of documentation certainly doesn't help much...

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• Java - Collections.binarySearch with PriorityQueue?

  - by msr

  Hello, Can I use Collections.binarySearch() method to search elements in a PriorityQueue? Otherwise, how can I apply search algorithms to a PriorityQueue? I have this (class Evento implements Comparable): public class PriorityQueueCAP extends PriorityQueue<Evento>{ // (...) public void removeEventos(Evento evento){ Collections.binarySearch(this, evento); // ERROR! } } And I got this error: "The method binarySearch(List, T) in the type Collections is not applicable for the arguments (PriorityQueueCAP, Evento)" Why? Thanks in advance!

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• Simple Properties in Objective-C Classes

  - by tarnfeld

  Hey, I've bene working with Objective-C for a while now, and so far I have never really needed to craft my own classes, properly. I am a bit confused with the two arguments you can give the @property(a, b) declaration in a header file. When creating outlets to Interface Builder I usually do @property(nonatomic, retain) but I have no idea what this means. I'm writing a simple class which has a set of properties which will be set from the outside, like [instance setName:@"Bla Bla Bla"]; or I guess like instance.name = @"Bla@" but I would rather the first option. How would I declare this kind of property on a class? Thanks in advanced! Sorry for the n00bish question :-)

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• Which revision of html5lib is stable?

  - by Mat

  html5lib notes that it's latest release (0.11) is somewhat old. Using the Python portion, I have recursion problems as noted in Issue 70 and Issue 59 but can't find a recent Mercurial revision that is stable. The latest tip is no good, I got the following error from python setup.py install: byte-compiling build/bdist.linux-x86_64/egg/html5lib/treewalkers/_base.py to _base.pyc File "build/bdist.linux-x86_64/egg/html5lib/treewalkers/_base.py", line 40 "data": []} ^ SyntaxError: invalid syntax And I get the following errors at runtime: soup = parser.parse(page.read()) File "build/bdist.linux-x86_64/egg/html5lib/html5parser.py", line 165, in parse File "build/bdist.linux-x86_64/egg/html5lib/html5parser.py", line 144, in _parse File "build/bdist.linux-x86_64/egg/html5lib/html5parser.py", line 454, in processDoctype TypeError: insertDoctype() takes exactly 4 arguments (2 given) I'm using it on Python 2.5.2 with lxml and BeautifulSoup.

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• What encoding I should use in editor (NetBeans), if I were intend to print non-english character

  - by Yan Cheng CHEOK

  I try to set the encoding of my editor to UTF-16. (Java String store the data in UTF-16 internally, right?) And I type the following code package helloworld; /** * * @author yan-cheng.cheok */ public class Main { /** * @param args the command line arguments */ public static void main(String[] args) { // TODO code application logic here System.out.println("???"); System.out.println("\u6587\u4EF6\u79CD\u7C7B"); } } However, the output is not what I expected : ???? ????? I try to change the editor encoding format to UTF-8, it works this time! ??? ???? May I know why I need to change the editor encoding format to UTF-8 but not UTF-16? Isn't Java String store the data in UTF-16 internally?

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• C# Process <instance>.StandardOutput InvalidOperationException "Cannot mix synchronous and asynchron

  - by Rahul2047

  I tried this myProcess = new Process(); myProcess.StartInfo.CreateNoWindow = true; myProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden; myProcess.StartInfo.FileName = "Hello.exe"; myProcess.StartInfo.Arguments ="-say Hello"; myProcess.StartInfo.UseShellExecute = false; myProcess.OutputDataReceived += new DataReceivedEventHandler(myProcess_OutputDataReceived); myProcess.ErrorDataReceived += new DataReceivedEventHandler(myProcess_OutputDataReceived); myProcess.Exited += new EventHandler(myProcess_Exited); myProcess.EnableRaisingEvents = true; myProcess.StartInfo.RedirectStandardOutput = true; myProcess.StartInfo.RedirectStandardError = true; myProcess.StartInfo.ErrorDialog = true; myProcess.StartInfo.WorkingDirectory = "D:\\Program Files\\Hello"; myProcess.Start(); myProcess.BeginOutputReadLine(); myProcess.BeginErrorReadLine(); Then I am getting this error.. My process takes very long to complete, so I need to show progress in runtime.

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• How do you use Linq2Sql in your applications ?

  - by this. __curious_geek

  I'm recently migrating to Linq2Sql and all my future projects would be done in Linq2Sql. Having said that, I researched a lot on how to properly plug-in Linq2Sql in application design. what to put at what layer ? Should I use DTOs over Linq2Sql entities ? I did not find any rock-solid material that really talked about one single thing and everyone had their own opinions and I found all of them justified right from their arguments. I'm looking forward to your ideas on how to integrate/use Linq2Sql in projects. My priority is maintenance[it should be maintenable and when multiple people work on same project] and scalabilty [it should have scope of evolution]. Thanks.

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• Passing parameter to controller from route in laravel

  - by bretterer

  Given the following route Route::get('groups/(:any)', array('as' => 'group', 'uses' => 'groups@show')); And the URL I would like to use, http://www.example.com/groups/1 I would like to be able to use the (:any) value in my controller. My controller looks like class Groups_Controller extends Base_Controller { public $restful = true; public function get_show($groupID) { return 'I am group id ' . $groupID; } } How is this possible to do? I have tried a few things including the following Route::get('groups/(:any)', array('as' => 'group', 'uses' => 'groups@show((:1))')); but it did not work. UPDATE Anytime I try to pass in the arguments as show above i get a 404 error. Thanks for the help!

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• Error loading my managedObjectModel

  - by niklassaers

  Hi guys, When I call [myAppDelegate managedObjectModel], in the retain line below, my application will crash (iPhone SDK v3.1.3): - (NSManagedObjectModel *)managedObjectModel { if (managedObjectModel != nil) { return managedObjectModel; } managedObjectModel = [[NSManagedObjectModel mergedModelFromBundles:nil] retain]; return managedObjectModel; } Here is my crash trace #0 0x905c44e6 in objc_exception_throw #1 0x01e78c3b in +[NSException raise:format:arguments:] #2 0x01e78b9a in +[NSException raise:format:] #3 0x000af99b in _NSArrayRaiseInsertNilException #4 0x0001c360 in -[NSCFArray insertObject:atIndex:] #5 0x0001c274 in -[NSCFArray addObject:] #6 0x01c16a7e in +[NSManagedObjectModel mergedModelFromBundles:] #7 0x00002432 in -[myAppDelegate managedObjectModel] at myAppDelegate.m:102 What is going on here? This is template code that I haven't seen fail before. Cheers Nik

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• Start Default Browser - Windows

  - by dbasnett

  When starting the default browser like this: Dim trgt1 As String = "http://www.vbforums.com/showthread.php?t=612471" pi.FileName = trgt1 System.Diagnostics.Process.Start(pi) It takes about 40 seconds to open the page. If I do it like this, though this isn't the default browser Dim trgt1 As String = "http://www.vbforums.com/showthread.php?t=612471" pi.Arguments = trgt1 pi.FileName = "iexplore.exe" 'or firefox.exe System.Diagnostics.Process.Start(pi) it opens immediately. Is this a bug or a feature? I have tried this with both IE and FireFox set to be the default browser.

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• Stack calling convention between .NET & C on WinCE 6.0

  - by bernard

  Hi there. I'm porting a DLL written in C from WinCE 5.0 to WinCE 6.0 on an ARM target. This DLL is called by a .NET software. On WinCE5.0, everything runs fine. On WinCE6, I have the following problem: on InitInstance() of my DLL, I can call anything without problem (for example MessageBox()) or uses recursivity. Passed that point, the DLL is called by .NET code. And then it fails: even the arguments passed by .NET code seem weird. I can call MessageBox() once, but I can't call a function that calls MessageBox() and then that calls itself: recursivity is broken. It seems that the .NET code uses the stack in a different way than my C code. I'm very unfamillar with the Windows world and the company that gives me the .NET application does not understand yet why there is such a failure. Any pointer/hint/advice welcome! Thanks!

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• Jquery ajax request error callback is called instead of success even after response recieved from server

  - by Muhammad Tahir Butt

  I am using jquery ajax funtion to get some content from my webservice. Response from the server is received but every time error callback is called instead of success callback. And this error is returned in xhr.error: function (){if(l){var t=l.length;(function i(t){x.each(t,function(t,n){var r=x.type(n);"function"===r?e.unique&&p.has(n)||l.push(n):n&&n.length&&"string"!==r&&i(n)})})(arguments),n?o=l.length:r&&(s=t,c(r))}return this} Here is the screenshot of response from server: and here is the code i am using to make the request: function abcdef() { $.ajax({ url: "http://192.168.61.129:8000/get-yt-access-token/", type: "GET", contentType:"application/json", error: function(xhr, textStatus, errorThrown){ alert("its error! " + xhr.error); }, success: function(data){ alert(data); } }); }

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• Converting F# Quotations into LINQ Expressions

  - by forki23

  Hi, I can convert a quotation of type Expr<'a -> 'b> to a Linq expression via the following snippet: /// Converts a F# Expression to a LINQ Lambda let toLambda (exp:Expr) = let linq = exp.ToLinqExpression() :?> MethodCallExpression linq.Arguments.[0] :?> LambdaExpression /// Converts a Lambda quotation into a Linq Lamba Expression with 1 parameter let ToLinq (exp : Expr<'a -> 'b>) = let lambda = toLambda exp Expression.Lambda<Func<'a, 'b>>(lambda.Body, lambda.Parameters) Now I want to convert a quotation of type Expr<'a * 'b -> 'c> or maybe even Expr<'a -> 'b -> 'c> to a Linq Lambda Expression of type Expression<Func<'a,'b'c>>. How can I do this? Regards, forki

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• Spring - scheduling and pooling runnables of different state (each Runnable instance has different

  - by lisak

  Hi, I can't figure out what to use for scheduling and pooling runnables of different state (each Runnable instance has different state). I could use ScheduledExecutorFactoryBean together with MethodInvokingRunnable to supply arguments. But take a look at the key ScheduledExecutorFactoryBean method, it is designed in a way that all task should start at the beginning. protected void registerTasks(ScheduledExecutorTask[] tasks, ScheduledExecutorService executor) { for (ScheduledExecutorTask task : tasks) { Runnable runnable = getRunnableToSchedule(task); if (task.isOneTimeTask()) { executor.schedule(runnable, task.getDelay(), task.getTimeUnit()); } else { if (task.isFixedRate()) { executor.scheduleAtFixedRate(runnable, task.getDelay(), task.getPeriod(), task.getTimeUnit()); } else { executor.scheduleWithFixedDelay(runnable, task.getDelay(), task.getPeriod(), task.getTimeUnit()); } } } } I can't think of how to setup this scenario with ThreadPoolTaskScheduler. Please help me out here. Thank you EDIT: shortened version is: how to setup task scheduler that would run hundreds of "different instances of Threads (with different state) with 2 seconds interval.

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• Cloud Agnostic Architecture?

  - by Dave

  Hi, I'm doing some architecture work on a new solution which will initially run in Windows Azure. However I'd like the solution (or at least the architecture/design) to be Cloud Agnostic (to whatever extent is realistic). Has anyone done any work on this front or seen any good white papers/blog posts? Our highlevel architecture will consist of a payload being sent to a web service (WCF for instance), this will be dumped on a queue (for arguments sake) and a worker process will grab messages off this queue and proccess them. There will be a database of customer information which we'd ideally like to keep out of the cloud however there are obvious performance considerations. Keen to hear other's thoughts. Cheers Dave

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