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  • Moving from php to rails

    - by piemesons
    While moving from php to rails (Means procedural language to Object oriented language), what are the various things you should keep in mind. How to think in world of object oriented programming? What are thinks i should kept in mind before starting the things. Any tips?

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  • how to use data caching with sqldatabase and asp& c#.net

    - by subash
    i have a large database which is updated every now and then. The application has been developed in asp.net and c#.net. i need to fetch data from the datbase to griview on a button click event . i am planning to use data caching , so that i can improve the performance of the application how can i use DATA caching mechanism so that i could see the updated result of the database in a gridview.

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  • call_user_function_array() and __construct

    - by John
    I'm working on a simple framework, and I'm having a slight problem. I'd like to use call_user_function_array() to pass parameters to a function. That's fine, except the function I want to pass it to is __construct. I can't create an instance of an object with cufa(), and by instantiating an object, and then using cufa to call that instance's __construct(), I run into problems with a broken class because I'm calling the constructor twice (and one time it's called wrong.)

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  • Euler rotation of direction vector

    - by Tom Savage
    I have defined an object in 3D space with position, rotation and scale values (all defined as 3D vectors). It also has upwards and forwards direction vectors. When I rotate the object, I need these direction vectors to rotate with it. Assuming my up vector is (0, 1, 0) and my forwards vector is (0, 0, 1) at zero rotation, how might I achieve this?

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  • MySQL - What is the correct primary key method

    - by Hammerstein
    I'm starting to develop an application using MySQL and although I've developed apps before using databases, I've normally gone to the incrementing id method. The other day I was reading a posting somewhere and saw someone being picked apart for this, for not properly "normalising the database". I'm not a big database person, but I wanted to make sure I'm doing this right. Any ideas, help / guidance?

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  • Are methods also serialized along with the data members in .NET?

    - by Shaza
    The title is obvious, I need to know if methods are serialized along with object instances in C#, I know that they don't in Java but I'm a little new to C#. If they don't, do I have to put the original class with the byte stream(serialized object) in one package when sending it to another PC? Can the original class be like a DLL file?

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  • Time not entered in mysql ? Java

    - by Nitesh Panchal
    Hello, I have a datetime field in mysql table and i am using JPA for persisting data but only date goes in database. Time always shows 00:00:00. What should i do? I am not doing any manipulation with Date. All i do is to assign new Date() to a variable and store it in database. What am i doing wrong?

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  • Ajax enabled sorting and paging on grid in ASP.NET 3.5

    - by Ismail S
    Is there any good solution for ajax enabled Grid with pageing and sorting which only brings the required data from database? I mean it should only bring the data from the database which is to be displayed on the particular page number of the grid. I looked at this. It looks good. But I just thought if anyone has created something better using Google's or Yahoo's javascript library or using any good features of asp.net 3.5.

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  • Getting the data out of the data Formview

    - by QEDDave
    I have an ASP pg with a formview list control on it that hooks up to a sql database customer table I want to access the customer name outside the form. How do I: A) access the bound text box in the form view template? Something like Text1.text=formview1.customername.text (that doesn't work but that's the kinda thing) B) access the database field in the table that the sqlsource connects to to feed the formview Really appreciate the help. I bet it's easy to do but I'm just not getting there.

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  • Simple MultiThread Safe Log Class

    - by Robert
    What is the best approach to creating a simple multithread safe logging class? Is something like this sufficient? public class Logging { public Logging() { } public void WriteToLog(string message) { object locker = new object(); lock(locker) { StreamWriter SW; SW=File.AppendText("Data\\Log.txt"); SW.WriteLine(message); SW.Close(); } } }

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  • Install mySQL data using ftp?

    - by Jane
    I am trying to install magento (open source e-commerce platform) sample data on my webhost. I have uploaded the file magento_sample_data.sql via ftp, and setup a new database and have assigned it to a user. How do I get the sample data into my empty database?

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  • what does select @@identity do?

    - by every_answer_gets_a_point
    i am connecting to a mysql database through excel using odbc what does this line do? Set rs = oConn.Execute("SELECT @@identity", , adCmdText) i am having trouble updating the database: With rs .AddNew ' create a new record ' add values to each field in the record .Fields("datapath") = dpath .Fields("analysistime") = atime .Fields("reporttime") = rtime .Fields("lastcalib") = lcalib .Fields("analystname") = aname .Fields("reportname") = rname .Fields("batchstate") = "bstate" .Fields("instrument") = "NA" .Update ' stores the new record End With it is ONLY updating .Fields("instrument") = "NA", but for all other fields it is putting NULL values

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  • In a given Json, search for the particular given string based on key, return true if found, else false Using jQuery/Javascript

    - by NaanuManu
    Given JSON String/object {"selectAll":false,"include":{"country_197":{"id":"197","data_type":"country","name":"Singapore","desc":"","parent_key_id":"all_all","status":""},"country_100":{"id":"100","data_type":"country","name":"India","desc":"","parent_key_id":"all_all","status":""}},"exclude":{"state_2":{"id":"2","data_type":"state","name":"Andhra Pradesh","desc":"","parent_key_id":"country_100","status":""}}} Given search string is: country_100 Required : Have to search for country_100 in Given JSON String/object by key parent_key_id Ex: searching country_100 is found : {"selectAll":false,"include":{"country_197":{"id":"197","data_type":"country","name":"Singapore","desc":"","parent_key_id":"all_all","status":""},"country_100":{"id":"100","data_type":"country","name":"India","desc":"","parent_key_id":"all_all","status":""}},"exclude":{"state_2":{"id":"2","data_type":"state","name":"Andhra Pradesh","desc":"","parent_key_id":"**country_100**","status":""}}} So return True, else return false please help me in finding a solution.

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  • actionscript array question

    - by Comma
    var array1:Array = new Array(); var array2:Array = new Array(); var obj1:Object = new Object(); array1.push(obj1); array2.push(obj1); if i change something in obj1 will array1[0] and array2[0] also change?

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  • how to use JSF 1.2 and JPA in Netbeans ?

    - by user364746
    Hello... I'm trying to use JPA to connect my JSF components to database but the problem is that I can't figure out how to get this all combination works.I have done entity classes from database, also create persistence.xml file and now I don't know where to go!! I don't know how to use entity manager and entity manager factory. Is there any tutorial helps me how to use Java EE 5,JSF 1.2 and JPA in netbeans? any help appreciated Thanks

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  • Android Convert Central Time to Local Time

    - by chedstone
    I have a MySql database that stores a timestamp for each record I insert. I pull that timestamp into my Android application as a string. My database is located on a server that has a TimeZone of CST. I want to convert that CST timestamp to the Android device's local time. Can someone help with this?

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  • Spring singleton lifecycle

    - by EugeneP
    Reading this When a bean is a singleton, only one shared instance of the bean will be managed and all requests for beans with an id or ids matching that bean definition will result in that one specific bean instance being returned. Will be managed... What does that mean? If there's only one object, than any modification to this object will result in that every another attempt to get this bean will return a modified instance??

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  • List.Contains is not working as hoped

    - by VoodooChild
    If I have an object of type MyBull and a List<MyBull>: // Just an example MyBull x = getMeTheObjectWithIdFromDB(9); orig.add(x); // Again same? data object MyBull y = getMeTheObjectWithIdFromDB(9); Why is this false then? // This is false, even though all the properties // of x and y are the same. orig.Contains<MyBull>(y);

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  • [NET] Reflection

    - by pipiscrew
    using : Dim a As [Assembly] = [Assembly].LoadFile("C:\test.exe") Dim testTP As Type testTP = a.GetType("SplashScreen", True, True) obj1 = Activator.CreateInstance(withoutFOR) obj1.show() my prog made reflection to test.exe SplashScreen loaded , also obj1 filled when SplashScreen disposed - MainForm loaded the obj1 isnothing! when try to access obj1 VS say : AccessibilityObject = {"Cannot access a disposed object. Object name: 'SplashScreen'."} I want always obj1 filled from the active form!! how????

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  • yield returns within lock statement

    - by DayOne
    Hi eveybody, if i have a yield return in a lock statement does the lock get taken out on each yield (5 times in the example below) or only once for all the items in the list? Thanks private List<string> _data = new List<string>(){"1","2","3","4","5"}; private object _locker =new object(); public IEnumerable<string> GetData() { lock (_locker) { foreach (string s in _data) { yield return s; } } }

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