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• Need help with ConnectionString value in C#

  - by SzamDev

  Hi I have an idea and I want to apply it to my Application (C# .NET). When we connect to a DB (MS SQL Server 2008) in VS 2008, the ConnectionString saved in the Application Setting and it's a static varriable (no one can edit it unless you edit it inside VS 2008). I want a way to let my Application search for MS SQL Server and save it to Application Setting and use it to connect to my DB Programmatically. When my application start, the first thing to do is checking the ConnectionString if vaild, NOT Empty and test connection to MS SQL Server Successfully so if there is a proplem I think to show a window form to let the user enter some data like username and password for MS SQL Server 2008 Is there any way to do it?

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• how to maintain a Presistent state of an app in Android?

  - by androidbase Praveen

  hi all, i am working on my App. in between i pressed the Home button on the device. my app will go to the background tasks. After that i long press the home button it will show my app as a persistent state. i.e where and what i had done in my app. But i click my app in the directory window it restarts my app. i want to do if my app is in the background tasks it will wake up else it will start. how to achieve that? Any Idea?

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• Custom QGraphicsItems not compiling and gives "object is private" error

  - by bahree

  Hi, I am trying to create a Custom QGraphicsItem button as shown by Fred here. The code which he posted can be found here. The problem is when I try and compile the code I get the following two errors: /usr/include/qt4/QtGui/qgraphicsitem.h ‘QGraphicsItem::QGraphicsItem(const QGraphicsItem&)’ is private /usr/include/qt4/QtCore/qobject.h ‘QObject::QObject(const QObject&)’ is private Here is the code snippet which essentially is the same as that in the sample above. The error is on the class deceleration. class MyButton : public QObject, public QGraphicsItem { Q_OBJECT Q_INTERFACES(QGraphicsItem) public: MyButton(QGraphicsItem *parent = 0); MyButton(const QString normal, const QString pressed = "", QGraphicsItem *parent = 0); .... } Interestingly the other sample as shown here works fine. The sample code for that can be found here. Any idea what is wrong? Thanks in advance.

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• Django/Python best practice template_dict

  - by fredrik

  Hi, After just been coding for about 6-9 months. I probably changed my coding style a number of times after reading some code or read best practices. But one thing I haven't yet come a cross is a good why to populate the template_dict. As of now I pass the template_dict across a number of methods (that changes/modifies it) and returns is. The result is that every methods takes template_dict as first argument and the returns it and this in my eyes doesn't seems to be the best solution. An idea is to have a method that handles all the changes. But I'm curios if there's a best practice for this? Or is it "do what you feel like"-type of thing? The 2 things I think is pretty ugly is to send as an argument and return it in all methods. And the just the var name is written xxx number of times in the code :) ..fredrik

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• How to convert Facebook created_time to Java Date?

  - by smitty

  Hi, I have a FQL statement like this: String query = "SELECT post_id, actor_id, target_id, created_time, message FROM stream WHERE source_id in (SELECT target_id FROM connection WHERE source_id=<userID>) AND is_hidden = 0"; I just wondering what kind of time Facebook gives to me. The result of my statement will be mapped to a wrapper object (wallpost). myDate.setTime(wallpost.getCreated_time()); gives me no valid date. Does anyone have an idea what kind of date Facebook returns and how to match it to Date()? thanks in advance!

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• Finding the closest grid coordinate to the mouse position with javascript/jQuery

  - by Acorn

  What I'm trying to do is make a grid of invisible coordinates on the page equally spaced. I then want a <div> to be placed at whatever grid coordinate is closest to the pointer when onclick is triggered. Here's the rough idea: I have the tracking of the mouse coordinates and the placing of the <div> worked out fine. What I'm stuck with is how to approach the problem of the grid of coordinates. First of all, should I have all my coordinates in an array which I then compare my onclick coordinate to? Or seeing as my grid coordinates follow a rule, could I do something like finding out which coordinate that is a multiple of whatever my spacing is is closest to the onclick coordinate? And then, where do I start with working out which grid point coordinate is closest? What's the best way of going about it? Thanks!

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• .NET MVC: How to use .NET controls with MVC?

  - by aximili

  I am very new to MVC. I've been learning to use plain HTML or HtmlHelpers, eg. for textbox, and get the value back in the Controller using Request.Form. But how do I use .NET controls with MVC? (eg. FileUpload) (The reason I ask is I am trying to use a custom control for uploading multiple files - it's Flajaxian File Uploader, if anyone knows about it. It works with webforms, but I have no idea how this thing is gonna work with MVC.) Thanks in advance

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• Unable to send email using 3rd party server ( IIS 7, Windows Server 2008, ASP.NET )

  - by Reed

  Hello All, I am using IIS 7 on Server 2008. I just tried migrating my app from an older platform - everything works fine, except the email feature. This is my config: < mailSettings > < smtp from="[email protected]" deliveryMethod="Network" > < network host="mail.xyz.com" port="25" userName="[email protected]" password="123" /> < / smtp > < /mailSettings > Whenever I need to send an email I use: SmtpClient smtp = new SmtpClient(); smtp.Send(email); The funny thing is I get absolutely no errors, however the email is never sent. The outbound firewall ruleset allows SMTP traffic. Any idea what I did wrong?

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• Calling Python from Java through scripting engine (jython)?

  - by griffin

  I'm trying to call Jython from a Java 6 application using javax.script: import javax.script.ScriptEngine; import javax.script.ScriptEngineManager; import javax.script.ScriptException; public class jythonEx { public static void main (String args[]) throws ScriptException { ScriptEngineManager mgr = new ScriptEngineManager(); ScriptEngine pyEngine = mgr.getEngineByName("python"); try { pyEngine.eval("print \"Python - Hello, world!\""); } catch (Exception ex) { ex.printStackTrace(); } } } This is causing a NullPointerException: java.lang.NullPointerException at jythonEx.main(jythonEx.java:12) Does anyone have any idea what I'm doing wrong here? Edit: Thanks for the responses! I added jython.jar to the classpath and it runs properly: java -cp "./;jython.jar" jythonEx

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• Eclipse RCP & tycho - The type org.eclipse.swt.widgets.Button cannot be resolved. It is indirectly referenced from required .class files

  - by Skip

  Situation: I have an Eclipse RCP Application, which I am trying to build with tycho plugin for Eclipse. When I am executing my Eclipse Application inside of the IDe - the Application is executed normally. When using tycho to build the Application - the following error is thrown: The type org.eclipse.swt.widgets.Button cannot be resolved. It is indirectly referenced from required .class files What I did : In other cases where a "missing requirenments" exception was thrown, which I found - a missing transitive plugin-dependency was the reason. In my case an SWT widget "Button" is missing, so I am trying to import swt. SWT is platform dependant so I am importing swt inside of the product, as described here. Anyway, during compilation the error occurs again. Question: Do someone have any Idea, how to solve this Problem?

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• Best placement for javascript in Asp.net MVC app that heavily uses partial views

  - by KallDrexx

  What is the best place for javascript that is specific to a partial view? For example, if I have a partial view (loaded via ajax call) with some divs and I want to turn those divs into an accordian, would it be better put the $("#section").accordion() in script tags inside of the partial view, or in a .js file in the function that retrieves that partial view and inserts it into the DOM? Obviously, common methods I will be keeping in a .js file, however I am more talking about javascript very specific to the partial view itself. Most things I find on the net seem to say to put all javascript into a separate .js but nothing addresses the idea of partial views.

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• SQL server 2005 - user rights

  - by Paresh

  I have created one user named "tuser" with create database rights in SQL server 2005. and given the 'db_owner' database role of master and msdb database to "tuser". From this user login when I run the script for create database then it will create new database. But "tuser" don't have access that newly created database generated from script. Any one have any idea?, I want to write the script so "tuser" have access that new created database after creation and can have add user permission of newly created database. I want to give 'db_owner' database roles to "tuser" on that newly created database in the same script which create new database. The script run under 'tuser'.

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• WCF issues with KnownType for Dictionary

  - by Tom Frey

  Hi, I have a service that implements the following DataMember: [DataMember] public Dictionary<string, List<IOptionQueryResult>> QueryResultItems { get; set; } I have the class "OptionQuerySingleResult" which inherits from IOptionQueryResult. Now, I understand that I need to make the OptionQueryResult type "known" to the Service and thus tried to add the KnownType in various ways: [KnownType(typeof(Dictionary<string, OptionQuerySingleResult[]>))] [KnownType(typeof(Dictionary<string, List<OptionQuerySingleResult>>))] [KnownType(typeof(OptionQuerySingleResult)] However, none of those approaches worked and on the client side I'm either getting that deserialization failed or the server simply aborted the request, causing a connection aborted error. Does anyone have an idea on what's the proper way to get this to work? I'd like to add, the if I change the QueryResultItems definition to use the concrete type, instead of the interface, everything works just fine. Thanks, Tom

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• How to simulate a file read error in the CRT

  - by Mark0978

  Using VS2008, we would like to simulate a file that has a size of X, but that has a read failure at X-Y bytes, so that we get an error indication. Anyone have an idea of how to do this on windows? Looks like there is a solution for linux, but I can't really come up with a way to do this on windows. We have multiple developers, multiple machines, and cppunit testing framework, so I want a software only design. I'm trying to simulate the actual CRT failing, so I can test the code that is dealing with the failure.

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• IE error on simple jQuery

  - by jamietelin

  Detaild information about the error Useraget: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; InfoPath.1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) Tiemstamp: Tue, 25 May 2010 08:54:11 UTC Message: Object doesn't support this property or method Row: 208 Character: 3 Code: 0 At row 208 i have perpage = $("#perpage").val(); What is wrong here? It only happens in IE8, Firefox runs it flawlessly. Anyone have any idea?

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• memcache redundancy changes key flag

  - by kobra

  Hi all, I am using memcache in my php application. I am trying to implement redundancy by setting memcache.redundancy = 3 in memcache.ini. When i initially set a key the value of flag is 0 (using telnet). But when I replace the value of the key the flag changes to 768. Do you have any idea why is this happening and how to keep the key flag 0. I am using memcache-3.0.4 on ubuntu and php 5.2.4. Thanks

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• Programmatically clean Word generated HTML while preserving styles?

  - by GeReV

  In my current company, we have this decade old... let's call it a "Hello World" application. While wanting to create a newer version of it, we also want to preserve older entries. These older entries contain hideous Word generated HTML which was never filtered before. If and when we move to a newer system, I'd generally prefer to have that HTML cleaned and filtered in order to have the site comply with HTML standards as much as possible. However, just cleaning that code like Jeff Atwood described in his blog or in any other way I know of would also ruin the style and formatting. Now, that just might cause our users to revolt and then all hell will break loose... Not a very good idea. Question is -- can Word's HTML be cleaned while preserving basic formatting? (e.g: coloring, italicized, bold text and so on) Preferably using publicly available code or library, such as HTML Tidy, examples in C# would be much appreciated. Thanks!

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• What is the worst programming mistake you have made?

  - by George Edison

  Most of us are not perfect. (Well, except Jon Skeet) Have you made a terrible mistake that you would like to share? The idea is that we could all learn from our mistakes and by collecting them together here, we can avoid some common ones and discover some no-so-common ones we may have overlooked. Oh, and this question is CW, of course. Edit: This question is different than http://stackoverflow.com/questions/1928002/what-is-the-worst-programming-mistake-you-have-ever-seen because we are sharing our own mistakes. Edit again: And this one http://stackoverflow.com/questions/130965/what-is-the-worst-code-youve-ever-written is different too - it asks for code. My question does not have that restriction!

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• Reorder a multidimensional array?

  - by JasonS

  I have the following array, I need to reorder it by average rating descending. Here is a snippet. Any idea how I would go about doing this? Thanks Array ( [0] => Array ( [id] => 3 [name] => [rating] => 0 ) [1] => Array ( [id] => 2 [name] => [rating] => 2 ) )

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• SQL Server Compact with Visual Studio 2008

  - by Thomas

  I am running SQL server 2008 and Visual Studio 2008 on Vista. I downloaded SQL server compact 3.5 SP1 from Microsofts website and ran the install. When I open the server explorer for any windows application that I'm working on with VS 2008 and right click on data connections and then on add a connection a dialog comes up with available data providers. The problem is that SQL compact is not one of the options. Any idea why SQL compact is not showing up as a data provider in VS 2008?

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• How do I MOVE a circle drawn in a subclass of UIView by overwriting the method "drawRect"??

  - by Christoph v

  hi, I'm trying to figure out what i'm doing wrong but i just don't get it. Here is what i want to do: I want to draw a circle somewhere on the screen of the iphone and then i want the circle always to be displayed at the position where the user currently taps on the screen. I started by creating a subclass of UIView and adding the following lines into the "drawRect" method: - (void)drawRect:(CGRect)rect { //Create the main view! CGContextRef mainscreen = UIGraphicsGetCurrentContext(); //Draw the dot //will be a circle cause rectangle is a square CGRect dotRect = CGRectMake(50, 80, 100, 100); [[UIColor blueColor] set]; CGContextStrokeEllipseInRect(mainscreen, dotRect); CGContextFillEllipseInRect(mainscreen, dotRect); } The appears just fine but now i have no idea how to make it move around on the screen i've tried serveral things and nothing worked pls help!

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• Unit testing with django-celery?

  - by Jason Webb

  I am trying to come up with a testing methodology for our django-celery project. I have read the notes in the documentation, but it didn't give me a good idea of what to actually do. I am not worried about testing the tasks in the actual daemons, just the functionality of my code. Mainly I am wondering: How can we bypass task.delay() during the test (I tried setting CELERY_ALWAYS_EAGER = True but it made no difference)? How do we use the test settings that are recommended (if that is the best way) without actually changing our settings.py? Can we still use manage.py test or do we have to use a custom runner? Overall any hints or tips for testing with celery would be very helpful.

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• Create a Sharepoint Blog comment in code ...

  - by Ren Hoek

  I have the need to create Sharepoint blog comments by code: SPSecurity.RunWithElevatedPrivileges(delegate() { sw.AllowUnsafeUpdates = true; SPList spList = SPContext.Current.Web.Lists["Kommentare"]; SPListItem listItem = spList.Items.Add(); listItem[listItem.Fields["Titel des Beitrags"].InternalName] = SPContext.Current.Item["Title"]; listItem[listItem.Fields["Titel"].InternalName] = titlearea.Value; listItem[listItem.Fields["Textkörper"].InternalName] = CommentArea.Value; listItem[SPBuiltInFieldId.Author] = curUser; // listItem[SPBuiltInFieldId.Modified] = curUser; listItem.Update(); //spList.Update(); sw.AllowUnsafeUpdates = false; }); but I allways get a "Invalid data has been used to update the list item. The field you are trying to update may be read only" I tried Systemupdate and the values seem to be valid. Has Anybody an idea? Greetings ren

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• IDL in ATL/COM: Can I publish a const of a complex type?

  - by Ptah- Opener of the Mouth

  I know how to publish a const of a simple type in IDL, for example: const long blah = 37 But I want to publish consts of complex types, with methods, or at least readable struct-like member fields. For example, perhaps a type called CarType, which has accessor fields like "get_Make", "get_Model", "get_Year", "get_BasePrice", et cetera. Then I would like to publish const instances, such as FORD_PINTO_1973. (Please don't read too much into the example, to tell me that this particular example would lend itself better to just regular classes without const instances or something like that). I have no idea how I would define, in IDL, the fact that FORD_PINTO_1973 has a Year field of 1973. Thanks in advance for any help.

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• How to use Haar wavelet to detect LINES on an image?

  - by Ole Jak

  So I have Image like this I want to get something like this (I hevent drawn all lines I want but I hope you can get my idea) I want to use SURF ( (Speeded Up Robust Features) is a robust image descriptor, first presented by Herbert Bay et al. in 2006 ) or something that is based on sums of 2D Haar wavelet responses and makes an efficient use of integral images for finding all straight lines on image. I want to get relative to picture pixel coords start and end points of lines. So on this picture to find all lines between tiles and thouse 2 black lines on top. Is there any such Code Example (with lines search capability) to start from? I love C and C++ but any other readable code will probably work for me=)

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