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• Sql Server Compact 2005 on Visual Studio 2008

  - by Tim

  I'm working on a Windows Forms application that interacts with a Sql Compact database file created by SQL Server 2005. This application was originally developed in Visual Studio 2005 but was recently converted to a Visual Studio 2008 solution. In regards to Sql Compact, we made sure the references were all still set to the assemblies that handle the 2005 version of Sql Compact rather than Sql Compact 3.5. Having done this, the application still runs just as it should - it will still interact with the Compact database, perform synchronization operations, etc. However, I just discovered today that Visual Studio tools such as the DataSet Designer do not play well with a Sql Compact database file of an older version than 3.5. If I go to the New Connection... wizard, the only Sql Compact Data Source / Data Provider are for Sql Compact 3.5. I assume that Visual Studio 2008 just doesn't include the data provider for the older version of Sql Compact by default. Is there a way you can add the old version of Sql Compact to the list of "Data Sources" for the connection wizard? To see exactly what I'm referring to, click on the Tools menu of Visual Studio 2008 and click Connect to Database... In the window that comes up, click Change... next to the Data source setting. From this dialog there is no way I can select the earlier version of Sql Compact - only 3.5 is available. Maybe I need to add an assembly reference somewhere? Or copy some file(s) from my Visual Studio 2005 directory over to 2008? I would think there would have to be a way for Visual Studio 2008 to be able to interact with a Sql Compact database from Sql Server 2005. To provide one more bit of detail, I discovered this problem when I went to my DataSet, right-clicked and tried to add a TableAdapter. The first screen that comes up says, "Choose Your Data Connection". If I leave it set to the Sql Compact connection that we've always used, I now get the following error when clicking the Next button: Failed to open a connection to the database "The selected database was created with an earlier version of SQL Server Compact and needs to be upgraded to SQL Server Compact 3.5 before the connection can be opened or tested. Upgrade the database by creating a new data connection and completing the Add Connection dialog box." Check the connection and try again. The only problem here is that we still use Sql Server 2005, and if my understanding is correct, it does not produce subscription files that are compatible with Sql Compact 3.5. If I am wrong in this assumption, please correct me. Any help you can provide is greatly appreciated. Thank you.

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• Must Dependency Injection come at the expense of Encapsulation?

  - by urig

  If I understand correctly, the typical mechanism for Dependency Injection is to inject either through a class' constructor or through a public property (member) of the class. This exposes the dependency being injected and violates the OOP principle of encapsulation. Am I correct in identifying this tradeoff? How do you deal with this issue? Please also see my answer to my own question below.

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• Time Zones for different users

  - by Ben Sinclair

  I am creating a script that allows the user to choose their own timezone... If I am to make this work, how do I store dates in the database so that every timezone will read it, and show the correct date in their timezone? Do I store the date as GMT and then when a user with the timezone GMT +10 selected views the item within my script, I show that date in GMT +10 time? Is there a better way to do this? Examples would be great :)

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• Most Astonishing Violation of the Principle of Least Astonishment

  - by Adam Liss

  The Principle of Least Astonishment suggests that a system should operate as a user would expect it to, as much as possible. In other words, it should never "astonish" the user with unexpected behavior. In your experience as the "astonishee," what types of systems are the worst offenders, and if you were the project manager, how would you correct the problem? Bonus if your answer describes how you'd retrain the developers!

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• Regex for string replace in C#

  - by Jack

  I am trying to achieve below output using regex but not able to, can someone please correct the regex - input string : data-placeholder=""[Refer" to "Conditions To Entry Of The Confirmation Order" and "Conditions To Effective Date" sections]" output string : data-placeholder="[Refer to Conditions To Entry Of The Confirmation Order and Conditions To Effective Date sections]" regex tried \s*"\s*([^ "]+)"\s*(?=["])

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• website session not set

  - by Matt

  Hello, I'm kind of a website development nub so bear with me. My problem is that the website php session doesn't seem to be set when I log in to my website. After ensuring that the username and password are correct, I have the following simple code: $_SESSION['username'] = $myusername; $_SESSION['password'] = $mypassword; session_start(); Content that should display after logging in is not displayed. Thanks in advance, Matt

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• Python: I need a code to auto login a website with HTTPS

  - by Rami Jarrar

  Hi, I'm new here and on python too, and i need a code to login an HTTPS webpage the page is: ritaj.birzeit.edu and how can i know if its correct username or password , can you help in this :)

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• How to write the content of a dictionary to a text file?

  - by codemonkie

  I have a dictionary object of type Dictionary and trying to use StreamWriter to output the entire content to a text file but failed to find the correct method from the Dictionary class. using (StreamWriter sw = new StreamWriter("myfile.txt")) { sw.WriteLine(dictionary.First()); } I can only retrieve the first element and it is bounded by a square bracket plus a comma separator in between as well: [Peter, Admin] and would be nice to have [Peter Admin] (without the comma)

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• How to distribute java components for developers to use?

  - by coder

  I am not sure how to put the correct title. but here is the brief explanation. With Microsoft .NET, i created a server side custom control using C# to be used in ASP.NET pages. I distribute the DLL generated as a component. developers will include that and use in their ASP.NET project. Likewise, how can i do for Java based web components for to use with JSP or JSF or any other java web frameworks?

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• Importing wikipedia database dumb - kills navicat - anyone got any ideas?

  - by Ali

  Ok guys I've downloaded the wikipedia xml dump and its a whopping 12 GB of data :\ for one table and I wanted to import it into mysql databse on my localhost - however its a humongous file 12GB and obviously navicats taking its sweet time in importing it or its more likely its hanged :(. Is there a way to include this dump or atleast partially at most you know bit by bit. Let me correct that its 21 GB of data - not that it helps :\ - does any one have any idea of importing humongous files like this into MySQL database.

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• Question regarding factory pattern

  - by eriks

  I have a factory class to build objects of base class B. The object (D) that uses this factory received a list of strings representing the actual types. What is the correct implementation: the factory receives an Enum (and uses switch inside the Create function) and D is responsible to convert the string to Enum. the factory receives a string and checks for a match to a set of valid strings (using ifs') other implementation i didn't think of.

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• Run Program on Startup?

  - by Maddest Hatter

  How is it possible to have an executable run automatically on startup? Is it possible by having a shortcut to the .exe in the startup folder in the All programs section of the start menu? If that is correct, what is the full directory of the start up folder? C:/

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• If I access UserTransaction does this mean that I use 2 phase commit or XA?

  - by Pangea

  Hi UserTransaction ut=lookup.... ut.beginTransaction(); saveToFooDB(); statelessEjb.transactionSupportedMethod(); //saves something to the Foo DB saveToFooDB(); ut.commit(); If i was doing the above then my understanding is that it is not an XA transaction as it doesn't span across multiple resources (like DB plus JMS). Is my understanding correct?

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• Convert json data to javascript array - in multi-dimensional sense

  - by AW-GWTF899

  I have a json array say { "People": { "Person": [ {"FirstName": "John", "LastName": "Smith"} {"FirstName": "Joe", "LastName": "Bloggs"} {"FirstName": "Wendy", "LastName": "Deng"} ] } } And I want to convert this into a javascript array (something like this) var persons = [ ["FirstName", "John", "LastName", "Smith"], ["FirstName", "Joe", "LastName", "Bloggs"], ["FirstName", "Wendy", "LastName": "Deng"] ]; How do I accomplish this? Hope my question makes sense and I realise the javascript array initialization may not be the correct way to put it. Thanks.

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• in google analytics, how do I get the site from the AccountEntry ?

  - by Chez

  in google analytics, how do I get the site from the AccountEntry ? looks like that if I do: entry.getProperty("ga:accountName") entry.getTitle().getPlainText() I get it. but is this correct ? where is it documented ?

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• What order are the programming languages derived in?

  - by chadley

  For instance, I know that basically all languages that are object oriented based are basically derivatives of C# or C++ correct? Does anyone know the order they came in? Like C - C++ - C# - PHP, etc.

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• global variable and Python

  - by rejinacm

  A global variable created in one function cannot be used in another function directly. Instead I need to store the global variable in a local variable of the function which needs its access. Am I correct? Why is it so?

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• app icon not showing in iphone simulator

  - by Ben Collins

  I have a 57x57 PNG file in the root of my bundle, and the "Icon file" setting in my .plist file has the correct filename, but when the app is installed to the simulator, the icon is the default grey/white one. I've tried deleting my app from the simulator (both through the simulator and through rm -rf on the app directory from the console), I've tried cleaning my target, and I've tried renaming my app icon, all to no avail. What do I have to do to get the icon showing?

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• What is the difference between the JRE and JVM?

  - by Sergio Tapia

  I think the JVM is similar to the .NET Framework, correct? Then what is the JRE? Thank you!

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• How to style a code block to make all the colours look pretty like my IDE and here in stackoverflow?

  - by BritishDeveloper

  When putting code samples in my blog I would like the code to have all the appropriate colours. How can I do that? Basically if I write: foreach (ListItem item in items) { item.Text = "something"; } I want it to appear in the correct colours like it does in my Visual Studio or here at stack*overflow*. I'm bored of styling the colours of each key word manually. Is there a pre-existing javascript library I can use?

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• writing "%d" in a printf C

  - by fmsf

  Hey, What is the correct syntax for this code: is it: printf("printf(\"\%d\",%s);", some_var); or printf("printf(\"%%d\",%s);", some_var); Or something else?

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• How can I force WPF to make data bindings without showing the window?

  - by Alexandru Bolboaca

  I want to unit test a WPF application and one scenario is to check that data bindings are correct. The simple way to do that would be to create the form, force it to bind to data and then compare the values from the controls with the expected ones. Is there any way to do that?

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• Making a cron(job) on XAMPP for Mac OS X

  - by arik-so

  Hello, how do I create a cron / cronjob (I am not quite sure about the correct terminology ^^ ) on XAMPP for Mac OS X running Snow Leopard? Or how do I make a cron(job) on Snow Leopard, whether XAMPP or not?

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• Combined states, FSM

  - by bobobobo

  Not sure this is the right place to ask, but is it "correct" to combine states of an FSM? Say you have an object with enum State { State1 = 1 << 0, State2 = 1 << 1, State3 = 1 << 2 } ; It just so happens that it makes sense to combine states, as in State myState = State1 | State2 ; however in FSM theory is this illegal?

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• Java, Sychronize JTable and ResultSet

  - by rodion

  Hello, I have JTable, And AbstarctDataModel with fill(ResultSet rs) methods. How to correct synchronize cursor of JTable with ResultSet's cursor? Any links? Thanx a lat. P.S. Please, add AbstractTableModel tag -- Canton of Uri's citizen

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