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• Refernce platform specific System.Data.SQLite

  - by Dmitriy Nagirnyak

  Hi, I am using SQLite for the unit testing and might use it as a database for local development/staging. The System.Data.SQLite has basically 2 versions: x86 and x64. Correct one should be used for the specific platform. I have 64 bit Win7, other guys in the team might use 32-bit OSs. The server's platform is not known at this stage. If I use 32-bit version of the assembly on 64-bit platform I get BadImageFormatException: Could not load file or assembly 'System.Data.SQLite'. I believe similar will happen trying to use 64-bit assembly on 32-bit platform. So my question is what is the best way to reference the SQLite assembly so that it does not depend on the platform and people can just use it? It is ok to use 32-bit version of assembly on a 64-bit platform (Maybe there is a switch for that somewhere?). Thanks, Dmitriy.

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• Cost of using ASP.NET

  - by Mackristo

  One thing that I keep hearing in reference to ASP.NET and MSFT technologies is that they cost money to use. Often when they are being compared to open source languages someone will mention that one factor in favor of open source is that it's free (to an extent). My question is, when does ASP.NET actually cost money to use in terms of using the proprietary technology? Understandably there are the hosting fees, but I'm curious about the fees outside of these hosting fees. I'm especially curious about this as it relates one-person smaller-site development (non-team/large enterprise). Any help is appreciated. (edits) Some excellent answers. Much appreciated The projects that I'm looking to use the technologies for would be personal sites and very small business sites (1 or 2). The intent would of course be that these projects get much bigger. It seems that for commercial production, fees will apply. What about just basic dynamic "shared hosting" sites that provide information?

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• (C#) iterate over read-only private collection member

  - by DGH

  I have a class which has two HashSet collections as private members. Other classes in my code would like to be able to iterate over those HashSets and read their contents. I don't want to write a standard getter because another class could still do something like myClass.getHashSet().Clear(); Is there any other way to expose the elements of my HashSets to iteration without exposing the reference to the HashSet itself? I'd love to be able to do this in a way that is compatible with for-each loops.

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• Find a HTML control using FindControl in ASP.NET

  - by Yongwei Xing

  Hi akk I add a select control to a ASPX page like below: hgc = new HtmlGenericControl(); hgc.InnerHtml = @"<select runat='server' id='my_selectlist'> \ <option value='volvo'>Volvo</option> \ <option value='saab'>Saab</option> \ <option value='mercedes'>Mercedes</option> \ <option value='audi'>Audi</option> \ </select>"; Then in a Button click event, I use the code below, try to get the value selected HtmlSelect s = (HtmlSelect)hgc.FindControl("my_selectlist"); label.Text = s.Value; I get a error:"Object reference not set to an instance of an object." Does anyone try it before? Best Regards

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• Starting point for learning CAD/CAE file formats?

  - by Escader

  We are developing some stress and strain analysis software at university. Now it's time to move from rectangles and boxes and spheres to some real models. But I still have little idea where to start. In our software we are going to build mesh and then make calculations, but how do I import solid bodies from CAD/CAE software? 1) How CAD/CAE models are organised? How solid bodies are represented? What are the possibilities of DWG, DXF, IGES, STEP formats? There is e.g. a complete DXF reference, but it's too difficult for me to understand without knowing basic concepts. 2) Are there C++ libraries to import solid bodies from CAD/CAE file formats? Won't it be too difficult to build a complete model to be able to import comprehensive file?

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• Recursive CTE Problem

  - by Chris

  Hi, I am trying to use a recursive CTE in SQL Server to build up a predicate formula from a table containing the underlying tree structure. For example, my table looks like: -------------------------- Id Operator/Val ParentId -------------------------- 1. 'OR' NULL 2. 'AND' 1 3. 'AND' 1 4. '' 2 5. 'a' 4 6. 'alpha' 4 : : : -------------------------- which represents ((a alpha) AND (b beta)) OR ((c gamma) AND (a < delta)). ParentId is a reference to the Id in the same table of the parent node. I want to write a query which will build up this string from the table. Is it possible? Thanks

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• Sharepoint and Cross-Site Lookup

  - by Mina Samy

  Hi all I have this scenario I want to build two sharepoint 2007 sites. One for customers info and the other for products and customers orders. Now the problem is that in the second site I need to reference the customers info from the first site but unfortunately sharepoint doesnot provide out of the box cross-site lookup. I did some search and found custom cross-site fields and used one but when I upgraded the site to sharepoint 2010 this custom field was not compatible and the upgrade wizard said it could not be upgraded. so what is the solution for this ? is it to merge the two sites so that I can use the standard lookup feature or is there any workaround for this ? please if any body has faced such a scenario, share the solution with me ? thanks

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• Using Graphics2D to overlay text on a BufferedImage and return a BufferedImage

  - by Andrew Bolster

  I have checked similarly named questions, but they don't answer this use case. Basically, I was to overlay some text (text) at a given coordinate (x,y) I have the below function in a package; protected BufferedImage Process2(BufferedImage image){ Graphics2D gO = image.createGraphics(); gO.setColor(Color.red); gO.setFont(new Font( "SansSerif", Font.BOLD, 12 )); gO.drawString(this.text, this.x, this.y); System.err.println(this.text+this.x+this.y); return image; } I feel like im missing something patently obvious; every reference to Graphics2D I can find is dealing with either games or writing directly to a file but I just want a BufferedImage returned. with the overlay 'rendered' In the current code, the image appears out the end unchanged. Thanks!

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• Delegate, BeginInvoke. EndInvoke - How to clean up multiple Async threat calls to the same delegate?

  - by Dan

  I've created a Delegate that I intend to call Async. Module Level Delegate Sub GetPartListDataFromServer(ByVal dvOriginal As DataView, ByVal ProgramID As Integer) Dim dlgGetPartList As GetPartListDataFromServer The following code I use in a method Dim dlgGetPartList As New GetPartListDataFromServer(AddressOf AsyncThreadMethod_GetPartListDataFromServer) dlgGetPartList.BeginInvoke(ucboPart.DataSource, ucboProgram.Value, AddressOf AsyncCallback_GetPartListDataFromServer, Nothing) The method runs and does what it needs to The Asyn callback is fired upon completion where I do an EndInvoke Sub AsyncCallback_GetPartListDataFromServer(ByVal ar As IAsyncResult) dlgGetPartList.EndInvoke(Nothing) End Sub It works as long as the method that starts the BeginInvoke on the delegate only ever runs while there is not a BeginInvoke/Thread operation already running. Problem is that the a new thread could be invoked while another thread on the delegate is still running and hasnt yet been EndInvoke'd. The program needs to be able to have the delegate run in more than one instance at a time if necessary and they all need to complete and have EndInvoke called. Once I start another BeginInvoke I lose the reference to the first BeginInvoke so I am unable to clean up the new thread with an EndInvoke. What is a clean solution and best practice to overcome this problem?

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• Cannot use Html.ActionLink in asp.net mvc spark files

  - by midas06

  I'm using the spark view engine with my asp.net mvc application. In my aspx pages, I can succesfully use Html.Actionlink, but when I attempt it in spark files, it doesnt show up in intellisense, and when i try to run it anyway, i get: Dynamic view compilation failed. c:\Users\midas\Documents\Visual Studio 2008\Projects\ChurchMVC\ChurchMVC\Views\Home\Index.spark(73,25): error CS1061: 'System.Web.Mvc.HtmlHelper' does not contain a definition for 'ActionLink' and no extension method 'ActionLink' accepting a first argument of type 'System.Web.Mvc.HtmlHelper' could be found (are you missing a using directive or an assembly reference?) I do have system.web.mvc referenced, and I have added in _global.spark. None of that helps. Any ideas?

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• Can the MVVM-Light ViewModelLocator be used in nested ViewModels?

  - by dthrasher

  The Visual Studio 2008 Designer doesn't seem to like UserControls that reference the MVVM-Light ViewModelLocator. I get an error message like: Could not create an instance of type 'MyUserControl'. For example, the following XAML will cause this behavior if MyUserControl uses the ViewModelLocator to establish its DataContext. <Page x:Class="MyProject.Views.MainView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:Views="clr-namespace:MyProject.Views" > <Grid> <Views:MyUserControl/> </Grid> </Page> Is the ViewModelLocator only meant to be used in top-level Views?

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• java.lang.NoSuchMethodError: main when starting HelloWorld with Eclipse Scala plugin

  - by Matt Sheppard

  I've just been playing with Scala, and installed the Eclipse plugin as described at http://www.scala-lang.org/node/94, but after entering the "Hello World" test example and setting up the run configuration as described, I get the following error Exception in thread "main" java.lang.NoSuchMethodError: main For reference the code is package hello object HelloWorld extends Application { println("Hello World!") } I've tinkered a bit with the obvious solutions (adding a main method, adding a singleton object with a main method) but I'm clearly doing something wrong. Can anyone get their test example to work, or point out what I am doing wrong?

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• CCSprite following a sequence of CGPoints

  - by pgb

  I'm developing a line drawing game, similar to Flight Control, Harbor Master, and others in the appstore, using Cocos2D. For this game, I need a CCSprite to follow a line that the user has drawn. I'm storing a sequence of CGPoint structs in an NSArray, based on the points I get in the touchesBegin and touchesMoved messages. I now have the problem of how to make my sprite follow them. I have a tick method, that is called at the framerate speed. In that tick method, based on the speed and current position of the sprite, I need to calculate its next position. Is there any standard way to achieve this? My current approach is calculate the line between the last "reference point" and the next one, and calculate the next point in that line. The problem I have is when the sprite "turns" (moves from one segment of the line to another). Any hint will be greatly appreciated.

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• Windows7 IIS7: zips don't have php5isapi.dll Can I use php.dll instead?

  - by Pete Alvin

  The page: How to Install PHP 5.2 on IIS 7and Windows Vista (and a few others) reference a mysterious php5isapi.dll which is not in the Windows install, or the zip files: php-5.3.2-Win32-VC9-x86.zip - VC9 x86 Thread Safe php-5.3.2-nts-Win32-VC9-x86.zip - VC9 x86 Non Thread Safe There was another post on stackoverflow that said it's obsolete and replaced by "fastapi" but no instructions mention this. I did find a php.dll in the zip file. Can I use that instead of php5isapi.dll? It's very frustrating trying to install basic PHP5 on Windows with MySQL.

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• linq where clause and count result in null exception.

  - by nestling

  The code below works unless p.School.SchoolName turns out to be null, in which case it results in a NullReferenceException. if (ExistingUsers.Where(p => p.StudentID == item.StaffID && p.School.SchoolName == item.SchoolID).Count() > 0) { // Do stuff. } ExistingUsers is a list of users: public List<User> ExistingUsers; Here is the relevant portion of the stacktrace: System.NullReferenceException: Object reference not set to an instance of an object. at System.Linq.Enumerable.WhereListIterator1.MoveNext() at System.Linq.Enumerable.Count[TSource](IEnumerable1 source) How should I handle this where clause? Thanks very much in advance.

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• displaying web pages over web views in collection view using cocoa bindings

  - by Miraaj

  Hi all, I tried sample example given at this link - Collection View Programming Guide It is simple and it worked. Considering it as a reference I tried a simple application which will show a collection view of web views with some web page displayed over each web view. The model class has two properties: NSString *pageName, and NSURL *pageURL. I then followed each and every step written in tutorial above with required modifications but I was caught in the step - How to bind web view to collection view item? In binding tab it shows three possibilities : Editable, Hidden, Tool tip but none of these is working. Can anyone suggest me way to accomplish my requirement? Thanks, Miraaj

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• client ip address in ASP.NET (.asmx) webservices

  - by Zain Shaikh

  I am using ASP.Net (.asmx) web services with Silverlight. since there is no way to find client ip address in Silverlight, therefore I had to log this on service end. these are some methods I have tried: Request.ServerVariables(”REMOTE_HOST”) HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"] HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]; Request.UserHostAddress() Request.UserHostName() string strHostName = System.Net.Dns.GetHostName(); string clientIPAddress = System.Net.Dns.GetHostAddresses(strHostName).GetValue(0).ToString(); All the above methods work fine on my local system, but when I publish my service on production server. it starts giving errors. Error: Object reference not set to an instance of an object. StackTrace: at System.Web.Hosting.ISAPIWorkerRequestInProc.GetAdditionalServerVar(Int32 index) at System.Web.Hosting.ISAPIWorkerRequestInProc.GetServerVariable(String name) at System.Web.Hosting.ISAPIWorkerRequest.GetRemoteAddress() at System.Web.HttpRequest.get_UserHostAddress()

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• MSB3422 Failed to retrieve VC project information through the VC project engine object model. MSB342

  - by Scott Langham

  I'm getting the following errors from MSBuild while trying to build a solution: C:\dev\MySln.sln : warning MSB3422: Failed to retrieve VC project information through the VC project engine object model. Unable to determine default tool for the specified file configuration. C:\dev\MySln.sln : warning MSB3425: Could not resolve VC project reference "C:\dev\MyProj.vcproj". Have you got any ideas on what's causing this? I've seen other postings about similar, but different errors such as when the MSB3422 error has a different message and shows "Illegal characters in path.", but I haven't seen any useful information about how to solve the error I'm getting where it says "Unable to determine default tool for the specified file configuration.". Thanks. I found this, but it doesn't really help: http://social.msdn.microsoft.com/Forums/en-US/msbuild/thread/b470f111-9321-4b43-8bd1-7fcf67c2d402

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• How do I track down the source of a KVC exception: this class is not key value coding-compliant for

  - by sam

  I get this error when I try to run my app: 2010-04-29 13:49:01.355 MyApp[56123:207] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<MyViewController 0x5112b10> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key toolbar.' MyViewController used to have an IBOutlet called 'toolbar' that connected to a UIToolbar object in a nib. I decided I no longer needed the toolbar or the nib so I removed them from the project. But Xcode seems to still want to refer to 'toolbar'. Where might the reference to toolbar be if I no longer use a nib? I can synthesize a dummy 'toolbar' property to appease Xcode, but I want to avoid this kind of ugly hack.

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• Anyone successfully using Commission Junction API ?

  - by Mauricio Scheffer

  Is anyone successfully using the CJ web services? I just keep getting java.lang.NullPointerExceptions even though my app is .net (clearly their errors). CJ support doesn't even know what a web service is. I googled and found many people getting this or other errors. Question is: is it a temporary problem or am I doomed to parse manually downloaded reports for eternity? The specific API I'm trying to use is the daily publisher commission service. Here is the WSDL. Links: CJ web services home API Reference

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• Isolate SQL field using regex

  - by Das123

  I'm trying to isolate a specific field in a SQL dump file so I can edit it but I'm not having any luck. The regex I'm using is: ^(?:(?:'[^\r\n']*'|[^,\r\n]*),){6}('[^\r\n']*'|[^,\r\n]*) Which is supposed to grab the seventh field and place it inside reference 1. The trouble is that this is stumbling when ever it finds a comma inside a text field and counts the partial match as the allowable matches. Eg. (1, 'Title', 1, 3, '2006-09-29', 'Commas, the bane of my regex', 'This is the target', 2, 4) matches " the bane of my regex'" instead of "'This is the target'".

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• Decoding bitmaps in Android with the right size

  - by hgpc

  I decode bitmaps from the SD card using BitmapFactory.decodeFile. Sometimes the bitmaps are bigger than what the application needs or that the heap allows, so I use BitmapFactory.Options.inSampleSize to request a subsampled (smaller) bitmap. The problem is that the platform does not enforce the exact value of inSampleSize, and I sometimes end up with a bitmap either too small, or still too big for the available memory. From http://developer.android.com/reference/android/graphics/BitmapFactory.Options.html#inSampleSize: Note: the decoder will try to fulfill this request, but the resulting bitmap may have different dimensions that precisely what has been requested. Also, powers of 2 are often faster/easier for the decoder to honor. How should I decode bitmaps from the SD card to get a bitmap of the exact size I need while consuming as little memory as possible to decode it?

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• Facebook Fanpage Wallposting from C# App

  - by brinthhillerup

  Hello Guys I have the following challenge at hand: I have a fanpage for a apartment renting company. They would like to autoupdate their fanpage everytime a new apartment is added to the system. The system is developed in C# ASP.NET 3.5. I have downloaded the Facebook C# API From codeplex. Have anyone done this, or know how to do it? UPDATE: So far I have tried the following: FacebookSession session = new Facebook.Session.ConnectSession(myKey,mySecretKey); Stream stream = new Stream(session); stream.Publish("Testing", null, null, null, 107010519323711); I get a null reference Exception when I call Stream.Publish

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• Automatically created NSManagedObject subclasses don't use ARC

  - by Jordan

  My project is ARC enabled (the build settings have Objective-C Reference Counting set to YES). There are no file exceptions to this, it is enabled project wide. (Latest stable version of Xcode). When I create an NSManagedObject subclass via File New for a Core Data entity, the generated header uses the following in its property declarations: @property (nonatomic, retain) But 'retain' is not ARC!! Is this a bug, or is there something I'm missing or not understanding? There are no build warnings - if this is a bug though, how can I remedy it?

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• Passing jQuery object and WebMethod return value to an OnSuccess function

  - by iboeno

  I am calling a WebMethod from this code: if($(this).attr("checked")) { .. MyWebMethod(variable1, variable2, onSuccessFunction); } The MyWebMethod returns an integer, and I want to set $(this).attr("id") of the jQuery object above to the returned integer. Basically, I'm trying to do the equivalent of an MVC Ajax.ActionLink...AjaxOptions {UpdateTargetID =...} However, I can't figure out how to get both a reference to $(this) as well as the returned value. For example, if I do: MyWebMethod(variable1, variable2, onSuccessFunction($(this))); I can succesfully manipulate the jQuery object, but obviously it doesn't have the return value from the MyWebMethod. Alternatively, the first code block with a method signature of onSuccessFunction(returnValue) has the correct return value from MyWebMethod, but no concept of the jQuery object I'm looking for. Am I going about this all wrong?

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