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• Interview Question in C#

  - by amutha

  A Technical Lead asked me that ,he created a class,he declared object and initialized it.But some circumstance we may get "null reference" exception.He explained there are 1000 reasons for that and asked me to tell a single reason.I am unable to figure it out. What the reason(s) ,we may get such exception?

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• using moogaloop to embed a custom video player from Vimeo

  - by scullytr

  Anyone have any luck using Vimeo's moogaloop player? I'm wanting to use Vimeo's supposed API functions to create custom buttons to control the Vimeo player on my site. Here's the reference page for moogaloop: http://vimeo.com/api/docs/moogaloop I've been able to get the player to embed using SWFObject, but I can't seem to get the API functions to…

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• validate hostname in Python

  - by kostmo

  Following up to Regular expression to match hostname or IP Address? and using Restrictions on valid host names as a reference, what is the most readable, concise way to match/validate a hostname/fqdn (fully qualified domain name) in Python? I've answered with my attempt below, improvements welcome.

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• MYSQL - datetime to seconds

  - by Mike

  Hello, I wasn't able to find out (googling, reading mysql reference manual) how to get value of DATETIME in seconds in MySQL. I dont mean to extract seconds from datetime, but to convert it into seconds. Thanx

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• Creating an empty Drawable in Android

  - by Kai

  Creating a Drawable that is completely empty seems like a common need, as a place holder, initial state, etc., but there doesn't seem to be a good way to do this... at least in XML. Several places refer to the system resource @android:drawable/empty but as far as I can tell (i.e., it's not in the reference docs, and aapt chokes saying that it…

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• replace xml element

  - by snorlaks

  Hello, Im doing something like that: var results = from d in myDocument.Elements().Descendants("myName") select d; foreach (var result in results){ if (sth...){ result.replace(myXElement); } } The problem is that when I replace an element I cant iterate to the next element cause there is null reference. (var result in…

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• Is there an equivalent to Lisp's "runtime" primitive in Scheme?

  - by Bill the Lizard

  According to SICP section 1.2.6, exercise 1.22: Most Lisp implementations include a primitive called runtime that returns an integer that specifies the amount of time the system has been running (measured, for example, in microseconds). I'm using DrScheme, where runtime doesn't seem to be available, so I'm looking for a good…

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• I'm capturing keys on my WinForm but I'm trying to see if the pressed key is a 'String' - getting an

  - by Sergio Tapia

  Here's my code: void gkh_KeyDown(object sender, KeyEventArgs e) { if (e.KeyCode == neededLetter as Keys) { if (neededLetter == "n") { neededLetter = "o"; } else if (neededLetter == "o") { …

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• Why does 'localhost' in web references cause SocketExceptions?

  - by Sam

  I have two .net web services deployed to the same IIS server using SSL, one that references the other. If I set that web reference to 'localhost', some calls fail with this exception: System.Web.Services.Protocols.SoapException: Server was unable to process request. --- System.Net.WebException: Unable to connect to the remote…

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• Using Facebook Connect auth.RevokeAuthorization in ASP.NET

  - by Focus

  I'm confused as to how revoking authorization works in the ASP.NET Toolkit. I've tried issuing the following: ConnectSession connect = new ConnectSession(FacebookHelper.ApiKey(), FacebookHelper.SecretKey()); Auth x = new Auth(fbSession); x.RevokeAuthorization(); But I get an object reference error during…

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• Where is EntityConfiguration and ContextBuilder in Visual Studio 2010 RC?

  - by Pierre-Alain Vigeant

  I see examples about code-only POCO for en entity framework 4, but I cannot find the classes EntityConfiguration and ContextBuilder and I cannot see which reference I need to add to have them. Is it part of the .Net Framework 4 or do we have to download something else?

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• get current selected button cell placed inside tableview using cocoa

  - by Swati

  hi i have a NSTableView i have two columns A and B B contains some data A contains custom button the button is added to column A using this: Below code is placed inside awakeFromNib method NSButtonCell *buttonCell = [[[NSButtonCell alloc] init] autorelease]; [buttonCell setBordered:NO]; [buttonCell…

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• Log MySQL Query In Kohana 3

  - by Asif

  Hi All, I am using Kohana 3. I want to log the MySQL queries being executed by an application. The reason to determine the query of type INSERT,UPDATE and DELETE which are being executed in a process and store them in another MySQL table with date-time for further reference. Can anybody tell how can I achieve this?

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• Is it possible to configure a Spring session scoped bean with attributes from the session?

  - by Dave G

  I'm trying to create a service bean that when referenced will be initialized with HttpSession based attributes. Let's say for sake of argument that my webapp would do the following: Establish a session Request login & password When service is requested (it is scope="session" and has init-method="init()") a new…

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• Read Resources from a dll

  - by Ramiz Uddin

  Hi, I've two VB7 projects - one is console project and another is winform project. In console project, I've defined some strings in the project resources (project properties Resources tab). I build that console project and get the dll from debug folder and added up as a reference in my winforms project. Now, I…

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• When does an asio timer go out of scope?

  - by ApplePieIsGood

  What I mean is, let's say you do an async_wait on an asio timer and bind the update to a function that takes a reference to a type T. Let's say you created the T initially on the stack before passing it to async_wait. At the end of that async_wait, it calls async_wait itself, renewing the timer over and over. Does…

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• Inline instantiation of a constant List

  - by Roflcoptr

  I try to do something like this: public const List<String> METRICS = new List<String>() { SourceFile.LOC, SourceFile.MCCABE, SourceFile.NOM, SourceFile.NOA, SourceFile.FANOUT, SourceFile.FANIN, …

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• is there any difference between work om Office 2007 and 2003 in C#

  - by Gold

  hi i work with Office 2007 (excell) in my C# program. i do this reference: Microsoft Excel 12.0 Object Library it work excellent !, but if in the computer there is Office 2003 is it work good ? if not, what i need to do ? thank's in advance

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• Send Email in .Net 3.5

  - by JPJedi

  I need to send a basic email from my site when someone registers for my site. Is their an easy way? or a site to reference?

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• EnvDTE Retrieving the data type from a CodeElement

  - by chrischu

  I am using EnvDTE to generate some code in my latest project. I have a reference to a CodeClass-Object for a given C#-Class but now I wanted to loop through all of its members (in codeClass.Members) and check their types. However I can't manage to retrieve the type of the given member from the…

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• Script files returning 404 Error.

  - by Seth Duncan

  Hi, I'm using ASP.Net and whenever I create a script file or try to include a script file like jQuery they aren't working. I am doing just a regular localhost server and none of the scripts are working. Upon further examination using firebug I look at whats being referenced in those scripts and…

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• Does @JoinTable has a property of "table" or not?

  - by Kent Chen

  The following is copied from hibernate's document. (http://docs.jboss.org/hibernate/stable/annotations/reference/en/html_single/#d0e2770) @CollectionOfElements @JoinTable( table=@Table(name="BoyFavoriteNumbers"), joinColumns = @JoinColumn(name="BoyId") ) …

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• Differences between JPA and JPA2

  - by Guillermo Vasconcelos

  Does anyone have a list of the changes between JPA 1 and JPA 2? I have read about the Criteria queries and other changes, but I would like a "what's new" kind of reference. Thanks

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• XPathNavigator in Silverlight

  - by vladimir

  I have a code library that makes heavy use of XPathNavigator to parse some specific xml document. The xml document is cross-referenced, meaning that an element can reference another which has not yet been encountered during parsing: <ElementA ...> <DependentElementX id="1234">…

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• Use msbuild community tasks without installing

  - by mickyjtwin

  In our developer environment, no users have administration rights. As such, it's not possible to install MSBuild.CommunityTasks without getting admin to do so. What I'm wondering is similar to NAnt, i.e. is it possible to include the files in your solution directory, and just reference it…

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