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• set date error on uidatepicker

  - by Matt Facer

  Hi guys, I've been stumped by the code below. I pass a string date to a UIDatePicker which seems to work on most devices, yet on some, it crashes the app. here's the code NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init]; [dateFormat setDateFormat:@"HH:mm"]; NSDate *date = [dateFormat dateFromString:dateStr]; [timePicker setDate:date]; [dateFormat release]; I have a function which passes the "dateStr" variable, as follows, dateStr = @"0:0"; I cannot see what's wrong - as it works for me! (iphone 3.1.3) but it doesnt work for my tester (ipod touch 3.1.3) Can anyone see anything wrong with the code? Thanks v much. any ideas?

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• DragDrop registration did not succeed in Setup Project

  - by rodnower

  Hello, we have some installation project in Visual Studio solution (Other project types - Setup and deployment - Setup project). This project have other library type project with Installation class named InstallationCore like project output. In user action I call to Install and Uninstall functions of installer of InstallationCore. InstallationCore has windows forms for interaction with user. There, in forms, I use Drag and Drop functionality for Drag and Drop text from Tree View to Text Box. But in line: txbUserName.AllowDrop = true; I get error of JIT debugger: Unhandled exception has occured DragDrop registration did not succeed System.InvalidOperationException: DragDrop registration did not succeed And long stack trace after that. Important to say, that when I run Installer function from test project the error did not occur and all work fine. Error occurs only when I run the .msi package. Any suggestions? Thank you for ahead.

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• how to ingore comma when returning json mvc

  - by Darcy

  Hi all, I'm returning JSON from my controller to my view in order to populate a jquery autocomplete textbox in MVC. The problem is, some of my data contains commas, and therefore is split by the autocomplete helper. Heres my code. Controller: public ActionResult GetData() { var data = repository.GetData(); return Json(data); } View (script): $.post("../MyController/GetData", function(data) { var evalData = eval(data) + ""; //formats the text $("#Data").autocomplete(evalData.split(","), { max: 500, matchContains: true }); }); As you can see, I am using the jquery .split helper to split the returned Json. Should I be using regex or should I go with a completely different approach?

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• How to tell if any entities in context are dirty with .Net Entity Framework 4.0

  - by Mike Gates

  I want to be able to tell if there is any unsaved data in an entity framework context. I have figured out how to use the ObjectStateManager to check the states of existing entities, but there are two issues I have with this. I would prefer a single function to call to see if any entities are unsaved instead of looping though all entities in the context. I can't figure out how to detect entities I have added. This suggests to me that I do not fully understand how the entity context works. For example, if I have the ObjectSet myContext.Employees, and I add a new employee to this set (with .AddObject), I do not see the new entity when I look at the ObjectSet and I also don't see the .Count increase. However, when I do a context.SaveChanges(), my new entity is persisted...huh? I have been unable to find an answer to this in my msdn searches, so I was hoping someone here would be able to clue me in. Thanks in advance.

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• PHP/Javascript - get php variable within javascript

  - by McNabbToSkins

  I have run into an interesting problem. I am currently developing php page and need to access a php variable within the javascript onload. $(document).ready(function() { var temp = <?php $page_id ?> } is this valid? I know that this might seem weird and not be allowed but I am developing a page that has two popup windows. The windows are created using the same view template and there is no way to distinguish between each other. If I stored a hidden value on the page with information unique to the page like so <input type="hidden" value="<?php $page_id ?> id="page_id" /> if there are two views open at the same time there is no way for me to get a unique page id like so var temp = $("#page_id").val(); Because there are two views witht he same input id that is not unique. Long story short is it valid to reference a php variable in the javascript.

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• How to use jquery to remove <div> in a table?

  - by Pentatonic

  I'm trying to remove a few rows surrounded by a div, but it doesn't work, why? $(function(){ $("#div1").empty(); }); <table id="tbl" border="1px"> <thead> ... </thead> <tbody id="tblBody"> <div id="div1"> <tr id="tr1"> <td> row1 </td> </tr> <tr> <td> row2 </td> </tr> </div> </tbody> </table>

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• Emacs on Windows: how to protect built-in el files from being accidentally edited

  - by RamyenHead

  On Linux, they are all read only, so no problem. But on MS Windows, what happens is like this: I get curious about the definition of the command isearch-forward, I type C-h f isearch-forward and click on the link isearch.el from the help to get to the definition of the function, and while I am reading its definition, I press C-h or C-c many times, but I set Caps Lock as another Ctrl key, so sometimes it happens that I release Caps Lock too early, in which case C-h or C-c becomes inserting h or c, sometimes I notice that and undo it, but sometimes I don't notice it, and I even save them all with C-x s. What is a good way to protect the built-in el files from me on MS Windows?

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• Problem with Marshalling char* in c#

  - by chrmue

  I have a problem calling this function from a c++ DLL in c# INT32 WINAPI PM_COM_GetText(INT32 TextId, char* pBuf, INT32 BufSize); It writes a Text in a buffer for a given text id. I try to call it with the following c# code, but I constantly get an access violation and don't undrestand why: public string GetText(Int32 TextId) { Int32 BufSize = 256; StringBuilder Str = new StringBuilder(BufSize); PM_COM_GetText(TextId, Str, BufSize); return Str.ToString(); } [DllImport("ComDll.dll", CharSet = CharSet.Ansi)] private static extern Int32 PM_COM_GetText(Int32 TextId, StringBuilder Str, Int32 BufSize); I don't see what's wrong, it looks to me like many other code snippets I found in the web. Any ideas? Thanks in advance!

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• Google Chrome + Ajax

  - by teehoo

  Im writing an ajax web app that uses Comet/Long Polling to keep the webpage up to date, and I noticed in Chrome, it treats the page as if its always loading (icon for the tab keeps spinning). I thought this was normal for Google Chrome + Ajax because even Google Wave had this behaviour. Well today I noticed that Google Wave no longer keeps the loading icon spinning, anyone know how they fixed this? Here's my ajax call code var xmlHttpReq = false; // Mozilla/Safari if (window.XMLHttpRequest) { xmlHttpReq = new XMLHttpRequest(); } // IE else if (window.ActiveXObject) { xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP"); } xmlHttpReq.open('GET', myURL, true); xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); xmlHttpReq.onreadystatechange = function() { if (xmlHttpReq.readyState == 4) { updatePage(xmlHttpReq.responseText); } } xmlHttpReq.send(null);

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• Understanding the "Instantiation" of Actionscript/Flash Objects

  - by parallax7d

  Could someone expand and clarify the different logical instantiations of objects in actionscript? So far it seems there are 3 layers of instantiations, for lack of a better term. The first one is declaring a variable/type. Next is instantiating that variable with something solid in the code, like a method or function? Is this just a way to glue things together? Then after that you instantiate it on the stage, is this something you have to do explicitly, or is it a side effect? Is this "3 layer" concept the correct way of looking at it, kind of like the MVC for flash app logic?

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• Using boost::asio::async_read with stdin?

  - by yeus

  hi poeple.. short question: I have a realtime-simulation which is running as a backround process and is connected with pipes to the calling pogramm. I want to send commands to that process using stdin to get certain information from it via stdout. Now because it is a real-time process, it has to be a non blocking input. Is boost::asio::async_read in conjunction with iostream::cin a good idea for this task? how would I use that function if it is feasible? Any more suggestions?

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• In PHP, how do I add 3 months to the purchase date retrieved from the iPhone InApp receipt?

  - by Cocoanut

  After I have validated the receipt against the App Store from my PHP server, the App Store sends me back a JSON response with "status" : 0 "receipt" : ( .... ) One of the receipt items is "purchase_date" which contains the following string (example) "2010-02-09 19:17:04 Etc/GMT" I'm trying to establish a subscription service and would like to add 3 months to this date and then write that expiry date into a MySQL table. Is there a string-to-date type function in PHP that can allow me to achieve the adding of 3 months? I have found this example which looks like it adds 1 month to a date: $date = date("Y-m-d");// current date $date = strtotime(date("Y-m-d", strtotime($date)) . " +1 month"); But I'm not sure how I can turn the string passed by the App Store into a PHP recognised date.

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• Releasing Xmlparser and NSXMLParser objects

  - by erastusnjuki

  How can I release the variables xmlParser and parser safely in the function below? - (id)callRestService: (NSString *) methodName : (NSDictionary *) params { NSURL *url=[self getRestUrl: methodName : params]; XmlParser *xmlParser = [[XmlParser alloc] init]; NSXMLParser *parser = [[NSXMLParser alloc] initWithContentsOfURL:url]; [parser setDelegate:xmlParser]; [parser setShouldProcessNamespaces:NO]; [parser setShouldReportNamespacePrefixes:NO]; [parser setShouldResolveExternalEntities:NO]; [parser parse]; [parser setDelegate:nil]; return xmlParser.dictionaryArray; }

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• __getattr__ on a module

  - by Matt Joiner

  How can implement the equivalent of a __getattr__ on a class, on a module? Example When calling a function that does not exist in a module's statically defined attributes, I wish to create an instance of a class in that module, and invoke the method on it with the same name as failed in the attribute lookup on the module. class A(object): def salutation(self, accusative): print "hello", accusative def __getattr__(mod, name): return getattr(A(), name) if __name__ == "__main__": salutation("world") Which gives: matt@stanley:~/Desktop$ python getattrmod.py Traceback (most recent call last): File "getattrmod.py", line 9, in <module> salutation("world") NameError: name 'salutation' is not defined Evidently something is not right about my assumed implementation.

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• Link error (LNK2019) when including other projects in Visual Studio 2005

  - by jules

  I am trying to work with several projects on visual studio 2005. I have one project that depends on two others. I have included those two project in the first project solution, and set the dependencies correctly. I get this error when linking the project: 1>server_controller.obj : error LNK2019: unresolved external symbol "public: __thiscall server_communication::TcpServer::TcpServer(class boost::asio::io_service &,struct server_communication::ServerParameters &)" (??0TcpServer@server_communication@@QAE@AAVio_service@asio@boost@@AAUServerParameters@1@@Z) referenced in function "public: __thiscall server_controller::ServerController::ServerController(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)" (??0ServerController@server_controller@@QAE@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@0@Z) I seems that the symbols can not be found in the other projects, even though there are defined in those projects.

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• error C2065: undeclared identifier

  - by karikari

  Currently, I have this function inside my other cpp file: UINT32 functionHtml(const wchar_t *url) { WinHttpClient client(url); client.SendHttpRequest(); wstring httpResponseHeader = client.GetHttpResponseHeader(); wstring httpResponse = client.GetHttpResponse(); writeToLog(httpResponse.c_str()); return 0; } I have another cpp file, and I would like to execute the stuff inside the above file. Here is the code for the other file: HRESULT CButtonDemoBHO::onDocumentComplete(IDispatch *pDisp, VARIANT *vUrl){ ATLTRACE("CButtonDemoBHO::onDocumentComplete %S\n", vUrl->bstrVal); // <---- i would like to call funtionHTML here or .. if (isMainFrame(pDisp)){ m_normalPageLoad=false; // <---- here.. MessageBox(m_hWnd, L"Main Document has completed loading", L"Document Complete", MB_OK); return S_OK; } return S_OK; } I got the error C2065: 'url' : undeclared identifier. Need help.

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• Errors while building ACE program

  - by karthi

  Hi i am new to ACE. i just started ACE with a "HELLO WORLD" program. It compiled successfully but while building it produces some of the errors.Can anyone help me. CODE: include include "ace/Log_Msg.h" include "ace/OS_main.h" int ACE_TMAIN(int argc, ACE_TCHAR *argv[]) { ACE_DEBUG((LM_DEBUG, "Hello World\n")); return 0; } ERROR: /tmp/cccwdbA0.o: In function main': hello.cpp:(.text+0xa): undefined reference toACE_Log_Msg::last_error_adapter()' hello.cpp:(.text+0x13): undefined reference to ACE_Log_Msg::instance()' hello.cpp:(.text+0x43): undefined reference toACE_Log_Msg::conditional_set(char const*, int, int, int)' hello.cpp:(.text+0x5f): undefined reference to `ACE_Log_Msg::log(ACE_Log_Priority, char const*, ...)' collect2: ld returned 1 exit status Compilation failed.

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• Hash 32bit int to 16bit int?

  - by dkamins

  What are some simple ways to hash a 32-bit integer (e.g. IP address, e.g. Unix time_t, etc.) down to a 16-bit integer? E.g. hash_32b_to_16b(0x12345678) might return 0xABCD. Let's start with this as a horrible but functional example solution: function hash_32b_to_16b(val32b) { return val32b % 0xffff; } Question is specifically about JavaScript, but feel free to add any language-neutral solutions, preferably without using library functions. Simple = good. Wacky+obfuscated = amusing.

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• Using JSON, passing variable from php to javascript

  - by Ryan Fung

  I wonder why it is not working? check_login.php <?php session_start(); $data = array("username" => "true"); echo json_encode($data); ?> my js file var linkName; $.ajax({ type: "POST", url: "check_login.php", dataType: "json", success: function(json){ if(json.username != "true") { //do something } } }); I am trying to get the username after checking whether or not the user has signed in yet in the php file, something like passing a session variable. But currently passing a string seems to already have a problem. Any know what I did wrong here? Still not working the code above. Anyone want to help me out here?

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• Query String in Javascript

  - by Ajith

  How can we collect a query string value in javascript. my script is like follows http://192.168.10.5/study/gs.js?id=200 here i want to collect the id value in my gs.js script file. For this i am using function getQuerystring(key, default_) { if (default_==null) default_=""; key = key.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]"); var regex = new RegExp("[\\?&]"+key+"=([^&#]*)"); var qs = regex.exec(window.location.href); if(qs == null) return default_; else return qs[1]; } var string_value = getQuerystring('id'); alert(string_value); But it is not getting..Please anybody can correct me.Please

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• Namespace Autoload works under windows, but not on Linux

  - by EvilChookie

  I have the following php code: index.php <?php spl_autoload_extensions(".php"); spl_autoload_register(); use modules\standard as std; $handler = new std\handler(); $handler->delegate(); ?> modules\standard\handler.php <?php namespace modules\standard { class handler { function delegate(){ echo 'Hello from delegation!'; } } } ?> Under Windows 7, running WAMP, the code produces the message "Hello from Delegation!" however under Linux, I get the following: Fatal error: spl_autoload(): Class modules\standard\handler could not be loaded in /var/www/index.php on line 15 Windows is running PHP 5.3.0 under WAMP, and Linux is running the 5.3.2 dotdeb package under Ubuntu 9.10. Is this a configuration issue on my linux box, or just a difference in the way namespaces and autoloading is handled on the different operating systems

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• String labels on boxplot outliers

  - by Benoît Collette

  Hi! I want to put string labels on outliers in a boxplot. Here's a simplification of the dataset I'm using: [,x] [,y] [,z] 7 2 a 10 2 b 112 3 c boxdata<-boxplot(x ~ y) To put values as label on outliers by group, I use this function: for(i in 1:length(boxdata$group)){ text(boxdata$group[i], boxdata$out[i], which(x==boxdata$out[i]),labels=boxdata$out[i],pos=4) } The problem is that I want to put z (string) as label instead of outlier value, but I don't know how to proceed. What do I need to do? Thank you! Ben

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• Integers in TextNodes w/ Python minidom

  - by PylonsN00b

  I am working on an API using SOAP and WSDL. The WSDL expects integers to come through. I am fairly new to ALL of this, and constructing XML in Python. I have chosen to use minidom to create my SOAP message. So using minidom, to get a value into a node I found I have to do this: weight_node = xml_file.createElement("web:Weight") weight_contents = xml_file.createTextNode(weight) weight_node.appendChild(weight_contents) So say weight needs to go in as an integer and IS an integer. The function is 'createTextNode' does this mean its going to be text, or what I put in there has to be text? Again I am fairly new to all of this. So if what I have explained seems way off base, please speak up.

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• Recursive vs. Iterative algorithms

  - by teehoo

  I'm implementing the Euclidian algorithm for finding the GCD (Greatest Common Divisor) of two integers. Two sample implementations are given: Recursive and Iterative. http://en.wikipedia.org/wiki/Euclidean_algorithm#Implementations My Question: In school I remember my professors talking about recursive functions like they were all the rage, but I have one doubt. Compared to an iterative version don't recursive algorithms take up more stack space and therefore much more memory? Also, because calling a function requires uses some overhead for initialization, aren't recursive algorithms more slower than their iterative counterpart?

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• Can grep be used on a Perl variable?

  - by Structure

  Is it possible one way or another to, within a Perl script, effectively execute grep against a Perl variable? An equivalent Perl function would be equally acceptable, I just want to keep the solution as simple as possible. For example: #!/usr/bin/perl #!/bin/grep $var="foobar"; $newvar="system('grep -o "foo" $var'); sprintf $newvar; Where I expect sprintf $newvar to output foo. Would also welcome any feedback on best practice here. I am not extremely familiar with Perl.

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