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  • Integrating Google Analytics into GWT application

    - by Domchi
    This should be totally simple but I can't get it working no matter what I try. I'm trying to use Google Analytics with GWT application. From what I understood, there are two way to do it: First is synchronous, by inserting tracking code at the end of <head> section HTML page and then calling this method: public static native void recordAnalyticsHit(String pageName) /*-{ pageTracker._trackPageview(pageName); }-*/; Second is asynchronous, by inserting tracking code just after <body> tag and then calling this method: public static native void recordAnalyticsHit(String pageName) /*-{ _gaq.push(['_trackPageview(' + pageName + ')']); }-*/; When running each of those methods, however, I get this exceptions in hosted mode: [ERROR] [myproject] Uncaught exception escaped com.google.gwt.core.client.JavaScriptException: (ReferenceError): pageTracker is not defined [ERROR] [myproject] Uncaught exception escaped com.google.gwt.core.client.JavaScriptException: (ReferenceError): _gaq is not defined When observing site in Firebug, I see that ga.js gets loaded, but that's about it. Did anyone get Analytics working with GWT? Also, does _gaq accept page name as trackPageview parameter, since all the examples I've seen use this call: _gaq.push(['_trackPageview()']); (Of course, that also doesn't work for me.)

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  • Passenger, Nginx, and Capistrano - Passenger not launching Rails app at all

    - by Throlkim
    Essentially, my route is working perfectly, Passenger seems to be loading - all is hunky-dory. Except that nothing Railsy happens. Here's my Nginx log from starting the server to the first request (ignore the different domain/route - it's because I haven't moved the new domain over yet, and it's returning a 403 error because there's no index file in the public folder): [ pid=24559 file=ext/nginx/HelperServer.cpp:826 time=2009-11-10 00:49:13.227 ]: Passenger helper server started on PID 24559 [ pid=24559 file=ext/nginx/HelperServer.cpp:831 time=2009-11-10 00:49:13.227 ]: Password received. 2009/11/10 00:49:53 [error] 24578#0: *1 directory index of "/var/www/***/current/public/" is forbidden, client: 188.221.195.27, server: ***, request: "GET / HTTP/1.1", host: "***" 2009/11/10 00:49:54 [error] 24578#0: *1 open() "/var/www/***/current/public/favicon.ico" failed (2: No such file or directory), client: 188.221.195.27, server: ***, request: "GET /favicon.ico HTTP/1.1", host: "***", referrer: "***" Someone on the RubyOnRails IRC channel suggested that it might be a webserver permissions problem. I had a suspicion that it might be a filesystem permission problem, but then Nginx runs as www-data and Passenger as root. I can load static files from within the public directory fine, but no Rails application is being launched. Does anyone have an idea? My head is gradually melting away figuring this one out! Edit: Here's the vhost file: server { listen 80; server_name ***; passenger_enabled on; location / { root /var/www/***/current/public; index index.html index.htm; } #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } }

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  • How do you unit test a LINQ query using Moq and Machine.Specifications?

    - by Phil.Wheeler
    I'm struggling to get my head around how to accommodate a mocked repository's method that only accepts a Linq expression as its argument. Specifically, the repository has a First() method that looks like this: public T First(Expression<Func<T, bool>> expression) { return All().Where(expression).FirstOrDefault(); } The difficulty I'm encountering is with my MSpec tests, where I'm (probably incorrectly) trying to mock that call: public abstract class with_userprofile_repository { protected static Mock<IRepository<UserProfile>> repository; Establish context = () => { repository = new Mock<IRepository<UserProfile>>(); repository.Setup<UserProfile>(x => x.First(up => up.OpenID == @"http://testuser.myopenid.com")).Returns(GetDummyUser()); }; protected static UserProfile GetDummyUser() { UserProfile p = new UserProfile(); p.OpenID = @"http://testuser.myopenid.com"; p.FirstName = "Joe"; p.LastLogin = DateTime.Now.Date.AddDays(-7); p.LastName = "Bloggs"; p.Email = "[email protected]"; return p; } } I run into trouble because it's not enjoying the Linq expression: System.NotSupportedException: Expression up = (up.OpenID = "http://testuser.myopenid.com") is not supported. So how does one test these sorts of scenarios?

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  • How to save the content in UIWebView for faster loading on next launch?

    - by erotsppa
    I know that there are some caching classes introduced in the iphone sdk recently, and there is also a TTURLRequest from three20's library that allows you to cache a request to a URL. However, because I am loading the web page in UIWebView by calling UIWebView's loadRequest, those techniques are not really applicable. Any ideas how I can save a web page so that on next app launch, I don't have to fetch from the web again for the full page? The page itself already have some ajax mechanism that updates parts of itself automatically.

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  • libcurl in C# and .NET

    - by medvezatnik
    Hello(????????????) I’m a PHP developer, my current job is maintaining a few web sites. So I have some free time and thoughts about developing some GUI applications using the c# language and .NET platform. Implementation of this applications requires libcURL functionality. Are there any .net classes or third-party libs in c#, that can provide me with the same functionality as libcurl in PHP ? Sorry for my bad English…

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  • How to disable Cufon on certain elements?

    - by Shadi Almosri
    Hiya, I currently use Cufon accross our site with something similar to Cufon.set('fontFamily', 'DIN Medium').replace('h1'); Now for a single H1 tag i would like Cufon to be disabled, this is without changing the H1 tag to any other tag, it must remain as it is. I can add classes etc to the H1 tag if required, and can do any HTML/CSS/JS just not changing the actual tag. Anyone know if this is possible and if it is how? Thanks in advance, Shadi

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  • C# Instantiate class which implements generic interface

    - by Martijn B
    Hi there, I have some business classes which implements IBusinessRequest for example: public class PersonBusiness : IBusinessRequest<Person> { } Besides this I have a function: TypeHelper.CreateBusinessInstance(Type businessType, Type businessRequestType) A requirement of a business class is that they must have a parameterless constructor, which I check in the TypeHelper.CreateBusinessInstance function. I want to create a instance of type businessType (which is i.e PersonBusiness) with the generic value businessRequestType for IBusinessRequest<. How can I get this done? Thanks in Advance. Gr Martijn

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  • Automatically extracting inline XSD from WSDL into XSD file(s)

    - by Steven Geens
    I am using a third party Web Service whose definition and implementation are beyond my control. This web service will change in the future. The Web Service should be used to generate an XML file which contains some of the same data (represented by the same XSD types) as the Web Service plus some extra information generated by the program. My approach: create my own XSD referring to the XSD definitions of the WSDL of the called web service (This XSD also includes XSD types for the extra information obviously.) use a Java XML databinding framework (like ADB or JiXB) to generate the databinding classes from my own XSD file from step 1 use a Java SOAP framework (like Axis2 or CXF) with the same databinding framework to generate the databinding classes from the WSDL (This would enable me to use the objects retrieved by the web service directly in the generation of the XML.) The XSD types I am going to use in my own XSD file, but are defined in the WSDL, are subject to change. Whenever they change, I would like to automatically process the XSD and WSDL databinding again. (If the change is significant enough, this might trigger some development effort.(But usually not.)) My problem: In step 1 I need an XSD referring to the same types as used by the Web Service. The WSDL is referring to another WSDL, which is referring to another WSDL etc. Eventually there is an WSDL with the needed inline XSD types. As far as I know there is no way to directly reference the inline XSD types of a WSDL from an XSD. The approach I would think most viable, is to include an extra step in the automatic processing (before the databinding) that extracts the inline XSD from the WSDL into other XSD file(s). These other XSD file(s) can then be referred to by my own XSD file. Things I'd like to avoid: Manually copy pasting the inline XSD into an XSD file (I am looking for an automatic process.) Any manual steps.(Like the determining the WSDL that contains the inline types manually.(The location of that WSDL does change as well.)) Using xsd:any in my own XSD. I would like my own XSD file to be correct. Using a non-Java technology(like .NET) Huge amounts of implementation (but hints on how you would implement such an extraction are welcome anyway) PS: I found some similar questions, but they all had responses like: WTH would you want to do that? That is the reason for my rather large background story.

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  • iPod/iPhone OpenGL ES UIView flashes when updating

    - by Dave Viner
    I have a simple iPhone application which uses OpenGL ES (v1) to draw a line based on the touches of the user. In the XCode Simulator, the code works perfectly. However, when I install the app onto an iPod or iPhone, the OpenGL ES view "flashes" when drawing the line. If I disable the line drawing, the flash disappears. By "flash", I mean that the background image (which is an OpenGL texture) disappears momentarily, and then reappears. It appears as if the entire scene is completely erased and redrawn. The code which handles the line drawing is the following: renderLineFromPoint:(CGPoint)start toPoint:(CGPoint)end { static GLfloat* vertexBuffer = NULL; static NSUInteger vertexMax = 64; NSUInteger vertexCount = 0, count, i; //Allocate vertex array buffer if(vertexBuffer == NULL) vertexBuffer = malloc(vertexMax * 2 * sizeof(GLfloat)); //Add points to the buffer so there are drawing points every X pixels count = MAX(ceilf(sqrtf((end.x - start.x) * (end.x - start.x) + (end.y - start.y) * (end.y - start.y)) / kBrushPixelStep), 1); for(i = 0; i < count; ++i) { if(vertexCount == vertexMax) { vertexMax = 2 * vertexMax; vertexBuffer = realloc(vertexBuffer, vertexMax * 2 * sizeof(GLfloat)); } vertexBuffer[2 * vertexCount + 0] = start.x + (end.x - start.x) * ((GLfloat)i / (GLfloat)count); vertexBuffer[2 * vertexCount + 1] = start.y + (end.y - start.y) * ((GLfloat)i / (GLfloat)count); vertexCount += 1; } //Render the vertex array glVertexPointer(2, GL_FLOAT, 0, vertexBuffer); glDrawArrays(GL_POINTS, 0, vertexCount); //Display the buffer [context presentRenderbuffer:GL_RENDERBUFFER_OES]; } (This function is based on the function of the same name from the GLPaint sample application.) For the life of me, I can not figure out why this causes the screen to flash. The line is drawn properly (both in the Simulator and in the iPod). But, the flash makes it unusable. Anyone have ideas on how to prevent the "flash"?

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  • Why does this silverlight code get a "catastrophic failure" when reading a BitmapImage out of Isolat

    - by Edward Tanguay
    In a Silverlight app, I save a Bitmap like this: public static void SaveBitmapImageToIsolatedStorageFile(OpenReadCompletedEventArgs e, string fileName) { using (IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication()) { using (IsolatedStorageFileStream isfs = new IsolatedStorageFileStream(fileName, FileMode.Create, isf)) { Int64 imgLen = (Int64)e.Result.Length; byte[] b = new byte[imgLen]; e.Result.Read(b, 0, b.Length); isfs.Write(b, 0, b.Length); isfs.Flush(); isfs.Close(); isf.Dispose(); } } } and read it back out like this: public static BitmapImage LoadBitmapImageFromIsolatedStorageFile(string fileName) { string text = String.Empty; using (IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication()) { if (!isf.FileExists(fileName)) return null; using (IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForApplication()) { using (IsolatedStorageFileStream isoStream = isoStore.OpenFile(fileName, FileMode.Open)) { BitmapImage bitmapImage = new BitmapImage(); bitmapImage.SetSource(isoStream); return bitmapImage; // "Catastrophic Failure: HRESULT: 0x8000FFFF (E_UNEXPECTED))" } } } } but this always gives me a "Catastrophic Failure: HRESULT: 0x8000FFFF (E_UNEXPECTED))" error. I've seen this error before when I tried to read a png file* off a server which was actually a **text file, so I assume the Bitmap is not being saved correctly, I got the code here. Can anyone see how the BitmapImage is not being saved correctly? Or why it would be giving me this error?

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  • Eigenvector computation using OpenCV

    - by Andriyev
    Hi I have this matrix A, representing similarities of pixel intensities of an image. For example: Consider a 10 x 10 image. Matrix A in this case would be of dimension 100 x 100, and element A(i,j) would have a value in the range 0 to 1, representing the similarity of pixel i to j in terms of intensity. I am using OpenCV for image processing and the development environment is C on Linux. Objective is to compute the Eigenvectors of matrix A and I have used the following approach: static CvMat mat, *eigenVec, *eigenVal; static double A[100][100]={}, Ain1D[10000]={}; int cnt=0; //Converting matrix A into a one dimensional array //Reason: That is how cvMat requires it for(i = 0;i < affnDim;i++){ for(j = 0;j < affnDim;j++){ Ain1D[cnt++] = A[i][j]; } } mat = cvMat(100, 100, CV_32FC1, Ain1D); cvEigenVV(&mat, eigenVec, eigenVal, 1e-300); for(i=0;i < 100;i++){ val1 = cvmGet(eigenVal,i,0); //Fetching Eigen Value for(j=0;j < 100;j++){ matX[i][j] = cvmGet(eigenVec,i,j); //Fetching each component of Eigenvector i } } Problem: After execution I get nearly all components of all the Eigenvectors to be zero. I tried different images and also tried populating A with random values between 0 and 1, but the same result. Few of the top eigenvalues returned look like the following: 9805401476911479666115491135488.000000 -9805401476911479666115491135488.000000 -89222871725331592641813413888.000000 89222862280598626902522986496.000000 5255391142666987110400.000000 I am now thinking on the lines of using cvSVD() which performs singular value decomposition of real floating-point matrix and might yield me the eigenvectors. But before that I thought of asking it here. Is there anything absurd in my current approach? Am I using the right API i.e. cvEigenVV() for the right input matrix (my matrix A is a floating point matrix)? cheers

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  • Generated signed X.509 client certificate is invalid (no certificate chain to its CA)

    - by Genady
    I use Bouncy Castle for generation of X.509 client certificates and sing them using a known CA. First I read the CA certificate from the certificate store, generate the client certificate, sign it using the CA. Validation of the certificate is failed doe to the following issue A certificate chain could not be built to a trusted root authority. As I understand this is due to the certificate not being related to the CA. Here is a code sample: public static X509Certificate2 GenerateCertificate(X509Certificate2 caCert, string certSubjectName) { // Generate Certificate var cerKp = kpgen.GenerateKeyPair(); var certName = new X509Name(true,certSubjectName); // subjectName = user var serialNo = BigInteger.ProbablePrime(120, new Random()); X509V3CertificateGenerator gen2 = new X509V3CertificateGenerator(); gen2.SetSerialNumber(serialNo); gen2.SetSubjectDN(certName); gen2.SetIssuerDN(new X509Name(true,caCert.Subject)); gen2.SetNotAfter(DateTime.Now.AddDays(100)); gen2.SetNotBefore(DateTime.Now.Subtract(new TimeSpan(7, 0, 0, 0))); gen2.SetSignatureAlgorithm("SHA1WithRSA"); gen2.SetPublicKey(cerKp.Public); AsymmetricCipherKeyPair akp = DotNetUtilities.GetKeyPair(caCert.PrivateKey); Org.BouncyCastle.X509.X509Certificate newCert = gen2.Generate(caKp.Private); // used for getting a private key X509Certificate2 userCert = ConvertToWindows(newCert,cerKp); if (caCert22.Verify()) // works well for CA { if (userCert.Verify()) // fails for client certificate { return userCert; } } return null; } private static X509Certificate2 ConvertToWindows(Org.BouncyCastle.X509.X509Certificate newCert, AsymmetricCipherKeyPair kp) { string tempStorePwd = "abcd1234"; var tempStoreFile = new FileInfo(Path.GetTempFileName()); try { // store key { var newStore = new Pkcs12Store(); var certEntry = new X509CertificateEntry(newCert); newStore.SetCertificateEntry( newCert.SubjectDN.ToString(), certEntry ); newStore.SetKeyEntry( newCert.SubjectDN.ToString(), new AsymmetricKeyEntry(kp.Private), new[] { certEntry } ); using (var s = tempStoreFile.Create()) { newStore.Save( s, tempStorePwd.ToCharArray(), new SecureRandom(new CryptoApiRandomGenerator()) ); } } // reload key return new X509Certificate2(tempStoreFile.FullName, tempStorePwd); } finally { tempStoreFile.Delete(); } }

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  • Selenium error on Win7

    - by hawkeye
    I'm starting Selenium server with the following on a command line: java -jar selenium-server.jar Here is the code: import com.thoughtworks.selenium.*; import java.util.regex.Pattern; import org.openqa.selenium.server.SeleniumServer; import junit.framework.*; public class orkut extends SeleneseTestCase { public void setUp() throws Exception { //SeleniumServer server = new SeleniumServer(); //server.start(); setUp("https://www.google.com/", "*firefox C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe"); } public void testOrkut() throws Exception { selenium.setTimeout("10000"); selenium.open("/accounts/ServiceLogin?service=orkut&hl=en-US&rm=false&continue=http%3A%2F%2Fwww.orkut.com%2FRedirLogin%3Fmsg%3D0&cd=IN&skipvpage=true&sendvemail=false"); selenium.type("Email", "username"); selenium.type("Passwd", "password"); selenium.click("signIn"); selenium.selectFrame("orkutFrame"); selenium.click("link=Communities"); selenium.waitForPageToLoad("10000"); } public static Test suite() { return new TestSuite(orkut.class); } public void tearDown(){ selenium.stop(); } public static void main(String args[]) { junit.textui.TestRunner.run(suite()); } } Here is the error: .E Time: 33.386 There was 1 error: 1) testOrkut(orkut)java.lang.RuntimeException: Could not start Selenium session: Failed to start new browser session: Unable to delete file C:\Users\user\AppData\Local\Temp\customProfileDir78cf02e3efca4772a71525c4a7523cac\parent.lock at com.thoughtworks.selenium.DefaultSelenium.start(DefaultSelenium.java:89) at com.thoughtworks.selenium.SeleneseTestBase.setUp(SeleneseTestBase.java:123) at com.thoughtworks.selenium.SeleneseTestBase.setUp(SeleneseTestBase.java:104) at com.thoughtworks.selenium.SeleneseTestCase.setUp(SeleneseTestCase.java:78) at orkut.setUp(orkut.java:14) at com.thoughtworks.selenium.SeleneseTestCase.runBare(SeleneseTestCase.java:212) at orkut.main(orkut.java:37) Caused by: com.thoughtworks.selenium.SeleniumException: Failed to start new browser session: Unable to delete file C:\Users\M022534\AppData\Local\Temp\customProfileDir78cf02e3efca4772a71525c4a7523cac\parent.lock at com.thoughtworks.selenium.HttpCommandProcessor.throwAssertionFailureExceptionOrError(HttpCommandProcessor.java:97) at com.thoughtworks.selenium.HttpCommandProcessor.doCommand(HttpCommandProcessor.java:91) at com.thoughtworks.selenium.HttpCommandProcessor.getString(HttpCommandProcessor.java:262) at com.thoughtworks.selenium.HttpCommandProcessor.start(HttpCommandProcessor.java:223) at com.thoughtworks.selenium.DefaultSelenium.start(DefaultSelenium.java:81) ... 16 more FAILURES!!! Tests run: 1, Failures: 0, Errors: 1

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  • How does LinqPad support WCF Data Services?

    - by user341127
    LinqPad supports WCF Data Services. If you assign an URL, such as http://services.odata.org/Northwind/Northwind.svc/. It will list all available data objects and you can query them. I guess LinqPad generates all available data classes at run time by reflection.Emit. I am wondering who can show me to how to do so. Or maybe someone has done it before. Any feedback are appreciated. Ying

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  • Creating ViewResults outside of Controllers in ASP.NET MVC

    - by Craig Walker
    Several of my controller actions have a standard set of failure-handling behavior. In general, I want to: Load an object based on the Route Data (IDs and the like) If the Route Data does not point to a valid object (ex: through URL hacking) then inform the user of the problem and return an HTTP 404 Not Found Validate that the current user has the proper permissions on the object If the user doesn't have permission, inform the user of the problem and return an HTTP 403 Forbidden If the above is successful, then do something with that object that's action-specific (ie: render it in a view). These steps are so standardized that I want to have reusable code to implement the behavior. My current plan of attack was to have a helper method to do something like this: public static ActionResult HandleMyObject(this Controller controller, Func<MyObject,ActionResult> onSuccess) { var myObject = MyObject.LoadFrom(controller.RouteData). if ( myObject == null ) return NotFound(controller); if ( myObject.IsNotAllowed(controller.User)) return NotAllowed(controller); return onSuccess(myObject); } # NotAllowed() is pretty much the same as this public static NotFound(Controller controller){ controller.HttpContext.Response.StatusCode = 404 # NotFound.aspx is a shared view. ViewResult result = controller.View("NotFound"); return result; } The problem here is that Controller.View() is a protected method and so is not accessible from a helper. I've looked at creating a new ViewResult instance explicitly, but there's enough properties to set that I'm wary about doing so without knowing the pitfalls first. What's the best way to create a ViewResult from outside a particular Controller?

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  • Using unmanaged code from managed code

    - by Harsha
    Hi I have my project developed in MFC which is unmnaged code. Now i need to create a similar application in C#, by reusing most of the MFC classes. Is it possible to directly export class/struct/enum from MFC dll, so that i can import it in my C# using dllimport and use it.?

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  • Qt 4.6 OpenGL GLSL

    - by Zeke
    I'm trying to find like NeHe's tutorials for Qt that are all in GLSL. Because lets face it, OpenGL in the old days are dead and Shaders are the only way now. And with Qt-4.6 they introduced the QMatrix4x4, QVector3, and the Shader classes. But I cannot find any tutorials for this. All the ones I do find, all use crappy SDL and/or GLUT (Which are just plain useless).

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  • Preloading multiple comboboxes/listbox itemssource with enumerated values using WCF RIA Services

    - by Dale Halliwell
    I would like to be able to load several RIA entitysets in a single call without chaining/nesting several small LoadOperations together so that they load sequentially. I have several pages that have a number of comboboxes on them. These comboboxes are populated with static values from a database (for example status values). Right now I preload these values in my VM by one method that strings together a series of LoadOperations for each type that I want to load. For example: public void LoadEnums() { context.Load(context.GetMyStatusValues1Query()).Completed += (s, e) => { this.StatusValues1 = context.StatusValues1; context.Load(context.GetMyStatusValues2()).Completed += (s1, e1) => { this.StatusValues2 = context.StatusValues2; context.Load(context.GetMyStatusValues3Query()).Completed += (s2, e2) => { this.StatusValues3 = context.StatusValues3; (....and so on) }; }; }; }; While this works fine, it seems a bit nasty. Also, I would like to know when the last loadoperation completes so that I can load whatever entity I want to work on after this, so that these enumerated values resolve properly in form elements like comboboxes and listboxes. (I think) I can't do this easily above without creating a delegate and calling that on the completion of the last loadoperation. So my question is: does anyone out there know a better pattern to use, ideally where I can load all my static entitysets in a single LoadOperation?

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  • Ruby - Feedzirra and updates

    - by mplacona
    Hi, trying to get my head around Feedzirra here. I have it all setup and everything, and can even get results and updates, but something odd is going on. I came up with the following code: def initialize(feed_url) @feed_url = feed_url @rssObject = Feedzirra::Feed.fetch_and_parse(@feed_url) end def update_from_feed_continuously() @rssObject = Feedzirra::Feed.update(@rssObject) if @rssObject.updated? puts @rssObject.new_entries.count else puts "nil" end end Right, what I'm doing above, is starting with the big feed, and then only getting updates. I'm sure I must be doing something stupid, as even though I'm able to get the updates, and store them on the same instance variable, after the first time, I'm never able to get those again. Obviously this happens because I'm overwriting my instance variable with only updates, and lose the full feed object. I then thought about changing my code to this: def update_from_feed_continuously() feed = Feedzirra::Feed.update(@rssObject) if feed.updated? puts feed.new_entries.count else puts "nil" end end Well, I'm not overwriting anything and that should be the way to go right? WRONG, this means I'm doomed to always try to get updates to the same static feed object, as although I get the updates on a variable, I'm never actually updating my "static feed object", and newly added items will be appended to my "feed.new_entries" as they in theory are new. I'm sure I;m missing a step here, but I'd really appreciate if someone could shed me a light on it. I've been going through this code for hours, and can't get to grips with it. Obviously it should work fine, if I did something like: if feed.updated? puts feed.new_entries.count @rssObject = initialize(@feed_url) else Because that would reinitialize my instance variable with a brand new feed object, and the updates would come again. But that also means that any new update added on that exact moment would be lost, as well as massive overkill, as I'd have to load the thing again. Thanks in advance!

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  • Changing startup object of console application at runtime

    - by MicMit
    Assuming I've got several unrelated classes in separate files with a main method in each. Currently project is a console application and I just change a startup object in IDE to run respective main which instantiates respective class from IDE. Out of curiosity would it be possible to change the startup object dynamically at runtime somehow before launching this exe as an alternative of having this project as a class library and repeating code which I have in main(s) somewhere else.

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  • Invalid length for a Base-64 char array.

    - by Code Sherpa
    As the title says, I am getting: Invalid length for a Base-64 char array. I have read about this problem on here and it seems that the suggestion is to store ViewState in SQL if it is large. I am using a wizard with a good deal of data collection so chances are my ViewSate is large. But, before I turn to the "store-in-DB" solution, maybe somebody can take a look and tell me if I have other options? I construct the email for delivery using the below method: public void SendEmailAddressVerificationEmail(string userName, string to) { string msg = "Please click on the link below or paste it into a browser to verify your email account.<BR><BR>" + "<a href=\"" + _configuration.RootURL + "Accounts/VerifyEmail.aspx?a=" + userName.Encrypt("verify") + "\">" + _configuration.RootURL + "Accounts/VerifyEmail.aspx?a=" + userName.Encrypt("verify") + "</a>"; SendEmail(to, "", "", "Account created! Email verification required.", msg); } The Encrypt method looks like this: public static string Encrypt(string clearText, string Password) { byte[] clearBytes = System.Text.Encoding.Unicode.GetBytes(clearText); PasswordDeriveBytes pdb = new PasswordDeriveBytes(Password, new byte[] { 0x49, 0x76, 0x61, 0x6e, 0x20, 0x4d, 0x65, 0x64, 0x76, 0x65, 0x64, 0x65, 0x76 }); byte[] encryptedData = Encrypt(clearBytes, pdb.GetBytes(32), pdb.GetBytes(16)); return Convert.ToBase64String(encryptedData); } On the receiving end, the VerifyEmail.aspx.cs page has the line: string username = Cryptography.Decrypt(_webContext.UserNameToVerify, "verify"); And the decrypt method looks like: public static string Decrypt(string cipherText, string password) { **// THE ERROR IS THROWN HERE!!** byte[] cipherBytes = Convert.FromBase64String(cipherText); Can this error be remedied with a code fix or must I store ViewState in the database? Thanks in advance.

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  • How can I use external expressions in Linq with EF4 (and LINQKit)?

    - by neo
    I want to separate out often used expressions in linq queries. I'm using Entity Framework 4 and also LINQKit but I still don't know how I should do it the right way. Let me give you an example: Article article = dataContainer.Articles.FirstOrDefault(a => a.Id == id); IEnumerable<Comment> comments = (from c in container.Comments where CommentExpressions.IsApproved.Invoke(c) select c); public static class CommentExpressions { public static Expression<Func<Module, bool>> IsApproved { get { return m => m.IsApproved; } } } Of course the IsApproved expression would be something much more complicated. The problem is that the Invoke() won't work because I didn't call .asExpandable() from LINQKit on container.Comments but I can't call it because it's just an ICollection instead of an ObjectSet. So my question is: Do I always have to go through the data context when I want to include external expressions or can I somehow use it on the object I fetched (Article)? Any ideas or best practices? Thanks very much! neo

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