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  • Language for non-programmers to start learning programming

    - by zarawesome
    A non-programmer friend will be starting the Computer Science college course in a few months. I'd like her to try her hand at some programming before she starts her studies (the course itself expects one to know C, but it's an horrible language to learn to program at). What language would be the best to do so? Related question: Best ways to teach a beginner to program?

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  • Simple thread-safe non-blocking file logger class in c#

    - by Jason Renlan
    I have a web application, that will log some information to a file. I am looking for a simple thread-safe non-blocking file logger class in c#. I have little experience with threading. I known there are great logging components out there like log4Net, Enterprise Library Logging Block, ELMAH, but I do not want an external dependence for my application. I was thinking about using this queue implementation http://www.codeproject.com/KB/cpp/lockfreeq.aspx

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  • Accessing not Non-QObject-based objects from Qt Script

    - by uni
    Is there any nice and simple way to access non QObject-based classes, such as QXmlQuery, QDateTime etc. from Qt Script? The only way I see is to wrap QXmlQuery in another class that inherits QObject and declare as slot every function which I need to access from Qt Script: void MyXmlQuery::setQuery ( const QString & sourceCode, const QUrl & documentURI ) { realxmlquery_.setQuery(sourceCode, documentURI); }

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  • Static property references non-static method

    - by rhj4
    How can a static property reference a nonstatic method? Example: public static int UserID { get { return GetUserID(); } } private int GetUserID() { return 1; } When I try to compile this, I get the error: "An object reference is required for he non-static field, method or property "GetUserID()"

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  • Warning: control reaches end of non-void function - iPhone

    - by Dave
    I keep getting 'warning: control reaches end of non-void function' with this code: - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { if (section ==0) { return [comparativeList count]; } if (section==1) { return [generalList count]; } if (section==2) { return [contactList count]; How can I get rid of this warning? Thanks.

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  • Idea for a user friendly/non technical RAD tool for performing queries and reports on Database

    - by pierocampanelli
    I am investigating for a tool that allows a user to perform in a user friendly way queries to database for extracting datas and creating reports. Primary requirement is that we can't know queries users are going to do. So we need to design a flexible UI allowing them to specify in a non technical way. My question is: do you know any tool that does something similar? Have you some inspiring user interface?

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  • Browser Cache API for non IE browsers

    - by MaxK
    IE has WinInet API, such as GetUrlCacheEntryInfo, to read and manipulate IE browser cache. Is there a similar API for non IE browsers such as Firefox or Chrome? If so where can I get more info? Thanks Update: According to following (http://stackoverflow.com/questions/61453/accessing-firefox-cache-from-an-xpcom-component) the WinInet function GetUrlCacheEntryInfo() can be accomplished by nsICacheSession.openCacheEntry() to get nsICacheEntryDescriptor. Is there an equivalent WinInet function CreateUrlCacheEntry() which will create a cache entry?

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  • Zend Framework -> Zend_Log via application.ini => insert() on a non-object error

    - by TaMeR
    I am trying to get logging via the application.ini file going and I am getting stuck with an error. resources.log.db.writerName = "Db" resources.log.db.writerParams.db.adapter = "PDO_SQLITE" resources.log.db.writerParams.db.dbname = ROOT "/data/tmp.db3" resources.log.db.writerParams.db.table = "logs" resources.log.db.writerParams.db.columnMap.priority = "priority" resources.log.db.writerParams.db.columnMap.message = "message" Fatal error: Call to a member function insert() on a non-object in /var/www/libs/zend/library/Zend/Log/Writer/Db.php on line 137

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  • 'add another item' in non-CCK Drupal forms

    - by ceejayoz
    CCK for Drupal has the handy feature of allowing a single CCK field to accept multiple values via a "add another item" button that results in an array of data in the node. I'm wondering if there's any easy way of adapting this for a non-CCK form that I'd be calling by drupal_get_form. I'd rather not have to re-invent the wheel with multi-step form techniques. Anyone done this?

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  • I need to parse non well-formed xml data (HTML)

    - by Daziplqa
    Hi, I have some non well-formed xml (HTML) data in JAVA, I used JAXP Dom, but It complains. The Question is :Is there any way to use JAXP to parse such documents ?? I have a file containing data such as : <employee> <name value="ahmed" > <!-- note, this element is not closed, So it is not well-formed xml--> </employee>

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  • Non blocking IO call from Django controller from a Windows service

    - by Anders
    Hi all, I have a CherryPy server with a Django application running as a Windows service, inside a controller I need to make a call to wmic, the problem is, so far I have only been able to implement a blocking operation. Does anyone have any recommendation for a non blocking operation so, at least more then one person at a time can access this controller and extract information from wmic? Thanks in advance, Anders

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  • Disable all non-clustered indexes

    - by spender
    I select a number of non-clustered indexes from my database with the following: SELECT sys.objects.name tableName, sys.indexes.name indexName FROM sys.indexes JOIN sys.objects ON sys.indexes.object_id = sys.objects.object_id WHERE sys.indexes.type_desc = 'NONCLUSTERED' AND sys.objects.type_desc = 'USER_TABLE' I'd like to run the following over each of the results: ALTER INDEX indexName ON tableName DISABLE How would I go about doing this? Is there a better way?

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  • Why does writeUTFBytes mess up non-english characters?

    - by Lost_in_code
    I'm writing all sorts of multi lingual text to .txt files using AIR's fileStream.writeUTFBytes() For english characters everything works perfectly. But as soon as there are chinese, arabic or any other non-english characters the sentences are totally messed up. For example: ???????????.... becomes ÂØpÁùħßÂèîÊëÑÂO±Â?àÁöÑÁ°ÆÊ=°Áà±.... How can this be fixed?

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  • Examples of useful or non-trival dual interfaces

    - by Scott Weinstein
    Recently Erik Meijer and others have show how IObservable/IObserver is the dual of IEnumerable/IEnumerator. The fact that they are dual means that any operation on one interface is valid on the other, thus providing a theoretical foundation for the Reactive Extentions for .Net Do other dual interfaces exist? I'm interested in any example, not just .Net based.

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  • NHibernate with StructureMap for a Non-Web Application

    - by Yoann. B
    Hi, What is best pratices for inject and manage Session/Transaction for NHibernate using StructureMap for a Non Web Application like an Windows Service ? In a web context, we use PerRequest Session management lifecycle using the Hybrid Lifecycle of StructureMap but for a Windows Service, i can't handle IDisposable UnitOfWork ... Thanks.

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  • Cocoa for the non-techinical

    - by annoyed
    How would you describe and explain Cocoa in non-technical terms, with lots of analogies to common, everyday things. For example, imagine you are describing it to a 5-year-old who keeps asking why? at the end if each explanation. This would invariable delve into the theory of OO so it could get lengthy, but the concept is important to the 'why' of Cocoa.

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  • How to order by column with non-null values first in sql

    - by devlife
    I need to write a sql statement to select all users ordered by lastname, firstname. This is the part I know how to do :) What I don't know how to do is to order by non-null values first. Right now I get this: null, null null, null p1Last, p1First p2Last, p2First etc I need to get: p1Last, p1First p2Last, p2First null, null null, null Any thoughts?

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  • A reference that is not to 'const' cannot be bound to a non-lvalue

    - by Bert
    Hello, Am struggling a bit with this. Am declaring: BYTE *pImage = NULL; Used in call: m_pMyInterface-GetImage(i, &imageSize, &pImage); Visual C++ 2003 compiler error: error C2664: 'CJrvdInterface::GetImage' : cannot convert parameter 3 from 'BYTE **__w64 ' to 'BYTE **& ' A reference that is not to 'const' cannot be bound to a non-lvalue The method called is defined as: void CMyInterface::GetImage(const int &a_iTileId, ULONG *a_pulImageSize, BYTE** &a_ppbImage) { (...) Any help much appreciated, Bert

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