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• Window Leaked on FBConnect in Android?

  - by Praveen Chandrasekaran

  how to rectify this Window Leaked Exception. i cant find why its occured. My LogCat Info: 05-07 17:25:05.402: ERROR/WindowManager(13595): Activity com.codecarpet.fbconnect.FBLoginActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@433b9ae0 that was originally added here 05-07 17:25:05.402: ERROR/WindowManager(13595): android.view.WindowLeaked: Activity com.codecarpet.fbconnect.FBLoginActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@433b9ae0 that was originally added here 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.view.ViewRoot.<init>(ViewRoot.java:214) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.view.Window$LocalWindowManager.addView(Window.java:409) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.app.Dialog.show(Dialog.java:238) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.app.ProgressDialog.show(ProgressDialog.java:107) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.app.ProgressDialog.show(ProgressDialog.java:95) 05-07 17:25:05.402: ERROR/WindowManager(13595): at com.codecarpet.fbconnect.FBProgressDialog.show(FBProgressDialog.java:106) 05-07 17:25:05.402: ERROR/WindowManager(13595): at com.codecarpet.fbconnect.FBDialog$WebViewClientImpl.onPageStarted(FBDialog.java:508) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.webkit.CallbackProxy.handleMessage(CallbackProxy.java:214) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.os.Handler.dispatchMessage(Handler.java:99) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.os.Looper.loop(Looper.java:123) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.app.ActivityThread.main(ActivityThread.java:4203) 05-07 17:25:05.402: ERROR/WindowManager(13595): at java.lang.reflect.Method.invokeNative(Native Method) 05-07 17:25:05.402: ERROR/WindowManager(13595): at java.lang.reflect.Method.invoke(Method.java:521) 05-07 17:25:05.402: ERROR/WindowManager(13595): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 05-07 17:25:05.402: ERROR/WindowManager(13595): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 05-07 17:25:05.402: ERROR/WindowManager(13595): at dalvik.system.NativeStart.main(Native Method)

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• How do I get a value of a reference type in an Expression?

  - by Jon Kruger

  I have this method: public void DoSomething<T>(Expression<Func<T, object>> method) { } If this method is called like this: DoSomething(c => c.SomeMethod(new TestObject())); ... how do I get the value of the parameter that was passed into SomeMethod()? If the parameter is a value type, this works: var methodCall = (MethodCallExpression)method.Body; var parameterValue = ((ConstantExpression)methodCall.Arguments[0]).Value; However, when I pass in a reference type, methodCall.Arguments[0] is a MemberExpression, and I can't seem to figure out how to write code to get the value out of it.

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• What is the best testing pattern for checking that parameters are being used properly?

  - by Joseph

  I'm using Rhino Mocks to try to verify that when I call a certain method, that the method in turn will properly group items and then call another method. Something like this: //Arrange var bucketsOfFun = new BucketGame(); var balls = new List<IBall> { new Ball { Color = Color.Red }, new Ball { Color = Color.Blue }, new Ball { Color = Color.Yellow }, new Ball { Color = Color.Orange }, new Ball { Color = Color.Orange } }; //Act bucketsOfFun.HaveFunWithBucketsAndBalls(balls); //Assert ??? Here is where the trouble begins for me. My method is doing something like this: public void HaveFunWithBucketsAndBalls(IList<IBall> balls) { //group all the balls together according to color var blueBalls = GetBlueBalls(balls); var redBalls = GetRedBalls(balls); // you get the idea HaveFunWithABucketOfBalls(blueBalls); HaveFunWithABucketOfBalls(redBalls); // etc etc with all the different colors } public void HaveFunWithABucketOfBalls(IList<IBall> colorSpecificBalls) { //doing some stuff here that i don't care about //for the test i'm writing right now } What I want to assert is that each time I call HaveFunWithABucketOfBalls that I'm calling it with a group of 1 red ball, then 1 blue ball, then 1 yellow ball, then 2 orange balls. If I can assert that behavior then I can verify that the method is doing what I want it to do, which is grouping the balls properly. Any ideas of what the best testing pattern for this would be?

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• Dynamic find methods Vs conditional statements in rails

  - by piemesons

  Hello Student.find_all_by_name_and_status(‘mohit’, 1) As this will create a exception 'No method exception' first then it will be handled by dynamic Method handler and this will not Student.find(:all, :conditions => [‘name = ? and status = ?’ ‘mohit’, 1]) Does Student.find(1) Will generate method missing exception and will it prevent SQL injection?

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• BeginForm in RC bug?

  - by msony

  I think that there are something wrong with new RC, when i write Html.BeginForm("Item", "Newsletter", FormMethod.Post, new { enctype = "multipart/form-data" }) method must render in output something like this: <form action="/Newsletter/Item" enctype = "multipart/form-data" method="POST"></form> but instead of that im getting: <form action="Item" enctype = "multipart/form-data" method="POST"></form> where my full action path?

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• Using one sqlconnection/sqlcommand through 2 DB-bound methods

  - by dotnetdev

  I have a class with a method which gets data from a database through a SELECT stored proc. This method uses a SqlDbReader by returning ExecuteReader() on a SqlCommand. The connection and everything is made in this method, with fields (such as connection string) set as class level fields. I now need to populate an array based on the results of this query (so the columns of each row will go into the array with its own index). However, this query will not select all of the data from one table which is involved. I can write the queries to get what I need, but how can I use one connection throughout the class? If I instantiate the connection object and call Open() in the constructor, I get an exception @ runtime. I'm hoping for something like this: // At class level: sqlconn.Open(); // sqlcommand set up Method() { // Fire stored proc // Insert results in a collection } Method2() { // Pass same collection in (use same one), // Add new row columns into same collection } How can I do this with strict performance in mind? Thanks

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• Adding negative and positive numbers in java without BigInt.

  - by liamg

  Hi, i'm trying to write a small java class. I have an object called BigNumber. I wrote method that add two positive numbers, and other method that subract two also positive numbers. Now i want them to handle negative numbers. So the i wrote couple of 'if' statements eg. if (this.sign == 1 /* means '+' */) { if (sn1.sign == 1) { if (this.compare(sn1) == -1 /* means this < sn1 */ ) return sn1.add(this); else return this.add(sn1); } etc. Unfortunately the code looks just ugly. Like a bush of if's and elses. Is there a better way to write that kind of code? Edit i can't just do this.add(sn1) beacuse sometimes i want to add positive number to negative one or negitve to negative. But add can handle only positive numbers. So i have to use basic math and for example: instead of add negative number to negative number i add this.abs() (absolute value of number) to sn1.abs() and return the result with opposite sign. Drew: this lines are from method _add. I use this method to decide what to do with numbers it receive. Send them to add method? Or send them to subract method but with different order (sn1.subtract(this))? And so on.. if (this.sign == 1) { if (sn1.sign == 1) { if (this.compare(sn1) == -1) return sn1.add(this); else return this.add(sn1); } else if (wl1.sign == 0) return this; else { if (this.compare(sn1.abs()) == 1) return this.subtract(sn1.abs()); else if (this.compare(sn1.abs()) == 0) return new BigNumber(0); else return sn1.abs().subtract(this).negate(); // return the number with opposite sign; } } else if (this.sign == 0) return sn1; else { if (wl1.sign == 1) { if (this.abs().compare(sn1) == -1) return sn1.subtract(this.abs()); else if (this.abs().compare(sn1) == 0) return new BigNumber(0); else return this.abs().subtract(sn1).negate(); } else if (sn1.sign == 0) return this; else return (this.abs().add(wl1.abs())).negate(); } As you can see - this code looks horrible..

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• log4j properties file: how to configure ?

  - by EugeneP

  Is it right that the procedure of using log4j looks like this: 1) put a .properties file somewhere in a project folder 2) in an initialization method, that runs only once, invoke PropertyConfigurator.configure("path_to_file"); 3) in every method we need to use logger we define a static logger variable and simply invoke getLogger(class) I'm asking you this: what if the initialization module is not defined? Where to put "log4j.properties" file so that we wouldn't need to invoke propertyconfigurator.configure at all, or if it's not possible, is it ok to invoke PropertyConfigurator.configure("path_to_file") in every method that uses a logger?

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• Change a UIButton View's background upon press

  - by Michael

  This should be easy but its got me stumped. I've got a button on each row of a table cell. The button is to delete the file associated with that row. I have an image that indicates if the file is present on the iPhone or not present. When the user presses the button, the target action method (showDeleteSheet) then calls a UIActionSheet with a variable to give it the indexPath of the row pressed. Then the user presses delete on the action sheet and the action sheet's clickedButtonAtIndex method deletes the file. Now, I need to update the button's background image property to change the image in the appropriate table cell to the not downloaded image. This can be done in either the button's target action method or the action sheet's clickedButtonAtIndex method. Here is some code: In the table's cellForRowAtIndexPath method I create the button: UIButton *deleteButton = [[UIButton buttonWithType:UIButtonTypeCustom] retain]; [deleteButton addTarget:self action:@selector(showDeleteSheet:) forControlEvents:UIControlEventTouchDown]; deleteButton.frame = CGRectMake(246, 26, 30, 30); if (![AppData isDownloaded:[dets objectForKey:@"fileName"]]) { [deleteButton setBackgroundImage:notdownloadedImage forState:UIControlStateNormal]; } else { [deleteButton setBackgroundImage:notdownloadedImage forState:UIControlStateNormal]; } In the button's target method: -(void)showDeleteSheet:(id)sender { //get the cell row that the button is in NSIndexPath *indexPath = [table indexPathForCell:(UITableViewCell *)[[sender superview] superview]]; NSInteger currentSection = indexPath.section; NSInteger currentIndexRow = indexPath.row; NSLog(@"section = %i row = %i", currentSection, currentIndexRow); UIButton *deleteButton = [UIButton buttonWithType:UIButtonTypeCustom]; [table reloadData]; //if deleteButton is declared in .h then the other instances of deleteButton show 'local declaration hides instance variable' [deleteButton setBackgroundImage:[UIImage imageNamed:@"not-downloaded.png"] forState:UIControlStateNormal]; UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:@"Delete this file?" delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:@"Delete" otherButtonTitles:nil]; actionSheet.tag = currentIndexRow; actionSheet.actionSheetStyle = UIActionSheetStyleDefault; [actionSheet showInView:self.view]; [actionSheet release]; } Perhaps the issue is that the call to [deleteButton setBackgroundImage...]; doesn't know which cell's button should be updated. If so I don't know how to tell it which. Because I test if the file is downloaded when the button is made and the background image is set, when I scroll down so the cell in question is de-queued then scroll back up it show's the correct image. I've tried to force the table to reload but [table reloadData]; is doing nothing. I've tried reloadRowsAtIndexPaths and still no good. Any one care to educate me on how this is done?

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• Compiling a bunch of stuff in the folder (java, on a mac)

  - by David

  two questions: how do i compile a .java file that isn't on my username (like something in documents or some other sub folder) if i have multiple .java files and i compile one that contains method that are contained in the others does the compiler compile those other files. heres an example of the second question. example1.java: class example1 { main () { example2.method () } } example2.java: class example2 { method () } When i compile example1.java will example2.java also be compiled?

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• Unable to access value of nested array element

  - by John Conde

  I'm having an issue getting the value of a nested array element. Here's what I've got: print_r($environment); // Outputs Array ( [0] => Array ( ['parameter'] => Vibration ['conditions'] => 204 ['method'] => D ) [1] => Array ( ['parameter'] => Immersion ['conditions'] => 104 ['method'] => B ) [2] => Array ( ['parameter'] => Shock ['conditions'] => 213 ['method'] => I ) [3] => Array ( ['parameter'] => Humidity ['conditions'] => 106 ['method'] => - ) ) print_r($environment[0]); // Outputs Array ( ['parameter'] => Vibration ['conditions'] => 204 ['method'] => D ) echo $environment[0]['parameter']; // Nothing Maybe I've been looking at this for too long. Any ideas would be greatly appreciated.

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• error - convert date to showing in view

  - by Ali

  hi i need convert date to shamsi date i create a method that convert DateTime to shamsi Date. when i passing a date to the method i got this error The best overloaded method match for 'BentaAccounting.Classes.GenralClasses.FarsiDate.MiladiToShamsi(System.DateTime)' has some invalid arguments this is the code i am using the method public static string MiladiToShamsi(DateTime Date) { string Result; PersianCalendar FarsiDate = new PersianCalendar(); Result = FarsiDate.GetYear(Date).ToString() + "/" + (FarsiDate.GetMonth(Date) < 10 ? "0" + FarsiDate.GetMonth(Date).ToString() : FarsiDate.GetMonth(Date).ToString()) + "/" + (FarsiDate.GetDayOfMonth(Date) < 10 ? "0" + FarsiDate.GetDayOfMonth(Date).ToString() : FarsiDate.GetDayOfMonth(Date).ToString()); return Result; } and view <%: Html.Encode(GenralClasses.FarsiDate.MiladiToShamsi(item.OrderDate) )%>

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• FACING ERROR WHILE CALLING AXIS2 WEB SERVICE ...

  - by darshanv

  Hello , I am new to axis ,I have created a web servcie with couple of methods using axis2 and deployed it on tomcat.And am calling that web service from my android program with the help of ksoap.But wen i call a method which doesn't take any parameter am gettin fine reply from web service which i can able to see on my screen,But wen i call anothr method which takes a string argument am getting namespace exception on server WEB SERVICE CODE IS ..... package Guru; public class DarshanSays { public String getMsg(String h) { return h+" ..the power of change is eVolution..."; } public String getEmpty(String d)throws Exception { return "empty string from tomcattttttttttt"; } } //AND program is String soap_action="http://Guru/getEmpty"; String method_nm="getEmpty"; String nmspc="http://Guru/"; String url7="//192.168.10.182:8080/axis2/services/Friday";//http: SoapObject request = new SoapObject(url7,method_nm); /*sending method parameters with SoapObject */ request.newInstance(); request.addProperty("h","darshan.....");//sending a parameter to a method SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11); envelope.bodyOut=request; envelope.dotNet = true; envelope.encodingStyle = SoapSerializationEnvelope.XSD; Log.d("Step","3"); envelope.dotNet=true; /*setting outputsoap object sending request */ envelope.setOutputSoapObject(request); /*HttpTransportSE object creating sending it url */ androidHttpTransport = new HttpTransportSE(url7); //androidHttpTransport.setXmlVersionTag(""); Log.d("Step","4"); try{ androidHttpTransport.debug=true; androidHttpTransport.call(nmspc,envelope); } catch(Exception e) { Log.d("Transportcall",""+e); alert=new AlertDialog.Builder(this); alert.setMessage(""+e); alert.show(); } //exception is throw. Log.d("Step","5"); try { Log.d("giving...","resp"); SoapPrimitive sp=(SoapPrimitive)envelope.getResponse(); String hh=sp.toString(); Log.d("reply from web ser",".."+hh.toString()); //and erorr msg is SoapFault - faultcode:'soapenv:Server' faultstring: 'namespace mismatch require http://Guru found 192.168.10.182:8080/axis2/services/Friday' faultactor: 'null' detail: org.kxml2.kdom.Node@43d31390 ERROR IS coming only when am calling parameterized method. I am facing this issue only when am giving a call to parameterized method. Please Help.. thanks Darshan V

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• Adding custom methods to a subclassed NSManagedObject

  - by CJ

  I have a Core Data model where I have an entity A, which is an abstract. Entities B, C, and D inherit from entity A. There are several properties defined in entity A which are used by B, C, and D. I would like to leverage this inheritance in my model code. In addition to properties, I am wondering if I can add methods to entity A, which are implemented in it's sub-entities. For example: I add a method to the interface for entity A which returns a value and takes one argument I add implementations of this method to A, B, C, D Then, I call executeFetchRequest: to retrieve all instances of B I call the method on the objects retrieved, which should call the implementation of the method contained in B's implementation I have tried this, but when calling the method, I receive: [NSManagedObject methodName:]: unrecognized selector sent to instance I presume this is because the objects returned by executeFetchRequest: are proxy objects of some sort. Is there any way to leverage inheritance using subclassed NSManagedObjects? I would really like to be able to do this, otherwise my model code would be responsible for determining what type of NSManagedObject it's dealing with and perform special logic according to the type, which is undesirable. Any help is appreciated, thanks in advance.

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• JavaScript private methods

  - by Wayne Kao

  To make a JavaScript class with a public method I'd do something like: function Restaurant() { } Restaurant.prototype.buy_food = function() { // something here } Restaurant.prototype.use_restroom = function() { // something here } That way users of my class can: var restaurant = new Restaurant(); restaurant.buy_food(); restaurant.use_restroom(); How do I create a private method that my public buy_food and use_restroom methods can call but that users of the class can't call externally. In other words, I want my method implementation to be able to do: Restaurant.prototype.use_restroom = function() { this.private_stuff(); } But this shouldn't work: var r = new Restaurant(); r.private_stuff(); How do I define private_stuff as a private method so both of those hold true? I've read Doug Crockford's writeup a few times but it doesn't seem like "private" methods can be called by public methods and "privileged" methods can be called externally.

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• Using interface classes and non-virtual interface idiom in C++

  - by andreas buykx

  Hi all, In C++ an interface can be implemented by a class with all its methods pure virtual: class IFoo { public: virtual void method() = 0; }; Now I want to implement this interface by a hierarchy of classes: class FooBase : public IFoo // implement interface IFoo { public: void method(); // calls methodImpl; private: virtual void methodImpl(); }; For the class hierarchy I would like to use the non-virtual interface (NVI) idiom, to deny derived classes the possibility of overriding the common behavior implemented in FooBase::method(), but it seems that all derived classes have the opportunity to override the FooBase::method() because it is declared in the interface class. Is my observation correct? And if so are there other options to both use interface classes and the NVI idiom?

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• Please help me work out this error, regarding the use of a HTTPService to connect Flex4 & Ruby on Ra

  - by ben

  I have a HTTPService in Flash Builder 4, that is defined as follows: <s:HTTPService id="getUserDetails" url="http://localhost:3000/users/getDetails" method="GET"/> It gets called as follows: getUserDetails.send({'user[username]': calleeInput.text}); Here is a screenshot of the network monitor, showing that the parameter is being sent correctly (it is 'kirsty'): Here is the Ruby on Rails method that it's connected to: def getDetails @user = User.find_by_username(:username) render :xml => @user end When I run it, I get the following error output in the console: Processing UsersController#list (for 127.0.0.1 at 2010-04-30 17:48:03) [GET] User Load (1.1ms) SELECT * FROM "users" Completed in 30ms (View: 16, DB: 1) | 200 OK [http://localhost/users/list] Processing UsersController#getDetails (for 127.0.0.1 at 2010-04-30 17:48:13) [GET] Parameters: {"user"={"username"="kirsty"}} User Load (0.3ms) SELECT * FROM "users" WHERE ("users"."username" = '--- :username ') LIMIT 1 ActionView::MissingTemplate (Missing template users/getDetails.erb in view path app/views): app/controllers/users_controller.rb:36:in getDetails' /usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:in service' /usr/local/lib/ruby/1.8/webrick/httpserver.rb:65:in run' /usr/local/lib/ruby/1.8/webrick/server.rb:173:in start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:162:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:162:in start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:95:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:92:in each' /usr/local/lib/ruby/1.8/webrick/server.rb:92:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:23:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:82:in `start' Rendering rescues/layout (internal_server_error) I'm not sure if the error is being caused by bad code in the getDetails Ruby on Rails method? I'm new to RoR, and I think I remember reading somewhere that every method should have a view. I'm just using this method to get info into the Flex 4 app, do I still need to make a view for it? Is that what's causing the error? Any help would be GREATLY appreciated, I've been stuck on this for a few days now! Thanks.

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• Java declarations (ordering)

  - by incrediman

  In Java, what's generally the most accepted way to organize a class in terms of the order in which declared data members and methods should be listed in the class file, keeping in mind the following and anything else you can think of for each one: its visibility whether it's a constructor, method, or member if it's a method, does it overload, or override other method(s)?

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• In OpenRasta, how do I configure a URI where I get "the remainder of the path" as a single string?

  - by Daniel Earwicker

  Normally in OpenRasta there is some configuration like this: ResourceSpace.Has.ResourcesOfType<Customers>() .AtUri("/customers/region/{region}") ... // and so on ... where the {region} part of the path is automatically mapped to a string parameter in the handling method. So if the user hits: http://server/customers/region/emea Then the handler method is passed the string "emea". As well as doing this, I'd like to register a handler with something like this: ResourceSpace.Has.ResourcesOfType<Customers>() .AtUri("/someotherthing/*") ... // and so on In this imaginary syntax, the asterisk would mean "take the rest of the path, including slashes, to be a single string parameter to pass to the handling method". And so if the user hits: http://server/someotherthing/how/about/this?that=other Then my handler method receives a string parameter: how/about/this?that=other Is such a thing possible in OpenRasta? In Sinatra (Ruby) I'd use a regular expression to do exactly this.

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• NHibernate: how to handle entity-based validation using session-per-request pattern, without control

  - by Seth Petry-Johnson

  What is the best way to do entity-based validation (each entity class has an IsValid() method that validates its internal members) in ASP.NET MVC, with a "session-per-request" model, where the controller has zero (or limited) knowledge of the ISession? Here's the pattern I'm using: Get an entity by ID, using an IFooRepository that wraps the current NH session. This returns a connected entity instance. Load the entity with potentially invalid data, coming from the form post. Validate the entity by callings its IsValid() method. If valid, call IFooRepository.Save(entity). Otherwise, display error message. The session is currently opened when the request begins and flushed when the request ends. Since my entity is connected to a session, flushing the session attempts to save the changes even if the object is invalid. What's the best way to keep validation logic in the entity class, limit controller knowledge of NH, and avoid saving invalid changes at the end of a request? Option 1: Explicitly evict on validation failure, implicitly flush: if the validation fails, I could manually evict the invalid object in the action method. If successful, I do nothing and the session is automatically flushed. Con: error prone and counter-intuitive ("I didn't call .Save(), why are my invalid changes being saved anyways?") Option 2: Explicitly flush, do nothing by default: By default I can dispose of the session on request end, only flushing if the controller indicates success. I'd probably create a SaveChanges() method in my base controller that sets a flag indicating success, and then query this flag when closing the session at request end. Pro: More intuitive to troubleshoot if dev forgets this step [relative to option 1] Con: I have to call IRepository.Save(entity)' and SaveChanges(). Option 3: Always work with disconnected objects: I could modify my repositories to return disconnected/transient objects, and modify the Repo.Save() method to re-attach them. Pro: Most intuitive, given that controllers don't know about NH. Con: Does this defeat many of the benefits I'd get from NH?

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• check for naming convention in java.

  - by Vivart

  through java reflection how to check that method name is in camelCase? e.g. import java.lang.reflect.*; public class TestClass { private int simpleMethod( Object p, int x) throws NullPointerException { if (p == null) throw new NullPointerException(); return x; } public static void main(String args[]) { try { Class cls = Class.forName("method1"); Method methlist[] = cls.getDeclaredMethods(); for (int i = 0; i < methlist.length; i++) { Method m = methlist[i]; System.out.println("name= " + m.getName()); } } catch (Throwable e) { System.err.println(e); } } } here i am getting method names simpleMethod and main i have to check that these names are in camelCase.

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• ASP.NET - Display Message While Page Is Loading

  - by Chris

  I have a page that performs a long-running task (10 to 15 seconds) in the page_load method. I have client-side javascript code that will display a decent "page loading" animated gif to the user. I am able to invoke the JavaScript method from the code-behind, to display the "page loading" animated gif, however, the long-running task is hanging up the UI such that the animated gif doesn't actually display until after the long-running task is complete, which is the exact opposite of what I want. To test this out, in my page_load method I make a call to the JavaScript method to display the animated gif. Then, I use Thread.Sleep(10000). What happens is that the animated gif doesn't display until after Thread.Sleep is complete. Obviously I am doing something incorrect. Any advice would be appreciated. Thanks. Chris

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• Creating UI problem

  - by Xaver

  I create program which have the installer-like interface. How better realize that with ShowDialog method of Form-class or doing MDI interface? when i using ShowDialog method i doing this ways and i have next problems: 1) First form have ShowInTaskbar property=true other form false, formm appeared by .ShowDialog() method in event of press button "Next", event of pressing "" (also this function do .visible=false to undisplay form), event of pressing "

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• Passing a variable from Excel 2007 Custom Task Pane to Hosted PowerShell

  - by Uros Calakovic

  I am testing PowerShell hosting using C#. Here is a console application that works: using System; using System.Collections; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Management.Automation; using System.Management.Automation.Runspaces; using Microsoft.Office.Interop.Excel; namespace ConsoleApplication3 { class Program { static void Main() { Application app = new Application(); app.Visible = true; app.Workbooks.Add(XlWBATemplate.xlWBATWorksheet); Runspace runspace = RunspaceFactory.CreateRunspace(); runspace.Open(); runspace.SessionStateProxy.SetVariable("Application", app); Pipeline pipeline = runspace.CreatePipeline("$Application"); Collection<PSObject> results = null; try { results = pipeline.Invoke(); foreach (PSObject pob in results) { Console.WriteLine(pob); } } catch (RuntimeException re) { Console.WriteLine(re.GetType().Name); Console.WriteLine(re.Message); } } } } I first create an Excel.Application instance and pass it to the hosted PowerShell instance as a varible named $Application. This works and I can use this variable as if Excel.Application was created from within PowerShell. I next created an Excel addin using VS 2008 and added a user control with two text boxes and a button to the addin (the user control appears as a custom task pane when Excel starts). The idea was this: when I click the button a hosted PowerShell instance is created and I can pass to it the current Excel.Application instance as a variable, just like in the first sample, so I can use this variable to automate Excel from PowerShell (one text box would be used for input and the other one for output. Here is the code: using System; using System.Windows.Forms; using System.Management.Automation; using System.Management.Automation.Runspaces; using System.Collections.ObjectModel; using Microsoft.Office.Interop.Excel; namespace POSHAddin { public partial class POSHControl : UserControl { public POSHControl() { InitializeComponent(); } private void btnRun_Click(object sender, EventArgs e) { txtOutput.Clear(); Microsoft.Office.Interop.Excel.Application app = Globals.ThisAddIn.Application; Runspace runspace = RunspaceFactory.CreateRunspace(); runspace.Open(); runspace.SessionStateProxy.SetVariable("Application", app); Pipeline pipeline = runspace.CreatePipeline( "$Application | Get-Member | Out-String"); app.ActiveCell.Value2 = "Test"; Collection<PSObject> results = null; try { results = pipeline.Invoke(); foreach (PSObject pob in results) { txtOutput.Text += pob.ToString() + "-"; } } catch (RuntimeException re) { txtOutput.Text += re.GetType().Name; txtOutput.Text += re.Message; } } } } The code is similar to the first sample, except that the current Excel.Application instance is available to the addin via Globals.ThisAddIn.Application (VSTO generated) and I can see that it is really a Microsoft.Office.Interop.Excel.Application instance because I can use things like app.ActiveCell.Value2 = "Test" (this actually puts the text into the active cell). But when I pass the Excel.Application instance to the PowerShell instance what gets there is an instance of System.__ComObject and I can't figure out how to cast it to Excel.Application. When I examine the variable from PowerShell using $Application | Get-Member this is the output I get in the second text box: TypeName: System.__ComObject Name MemberType Definition ---- ---------- ---------- CreateObjRef Method System.Runtime.Remoting.ObjRef CreateObj... Equals Method System.Boolean Equals(Object obj) GetHashCode Method System.Int32 GetHashCode() GetLifetimeService Method System.Object GetLifetimeService() GetType Method System.Type GetType() InitializeLifetimeService Method System.Object InitializeLifetimeService() ToString Method System.String ToString() My question is how can I pass an instance of Microsoft.Office.Interop.Excel.Application from a VSTO generated Excel 2007 addin to a hosted PowerShell instance, so I can manipulate it from PowerShell? (I have previously posted the question in the Microsoft C# forum without an answer)

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• Getting the first result from a LINQ query - why does ElementAt<T>(0) fails when First<T>() succeeds

  - by Mr Roys

  I have a method AddStudent() which looks for a student with the same name and returns an existing student from the database if there is a student with the same name, otherwise it creates a new student and adds it to the database. I'm curious why se = students.First<StudentEntity>(); succeeds when se = students.ElementAt<StudentEntity>(0); fails when I try to get the first result from the LINQ query. Aren't the two methods the same? The full code for the method is shown below. public Student AddStudent(string name) { using (SchoolEntities db = new SchoolEntities()) { // find student with same name via LINQ var students = from s in db.StudentEntitySet where s.name == name select s; StudentEntity se = default(StudentEntity); // if student with the same name is already present, return // that student if (students.Count<StudentEntity>() > 0) { // if i use ElementAt, if fails with a "LINQ to Entities does not // recognize the method 'StudentEntity ElementAt[StudentEntity] // (System.Linq.IQueryable`1[StudentEntity], Int32)' method, // and this method cannot be translated into a store expression.", // but not when I use First. Why? // se = students.ElementAt<StudentEntity>(0); se = students.First<StudentEntity>(); } else { // passing 0 for first parameter (id) since it's represented by // a BigInt IDENTITY field in the database so any value // doesn't matter. se = StudentEntity.CreateStudentEntity(0, name); db.AddToStudentEntitySet(se); db.SaveChanges(); } // create a Student object from the Entity object return new Student(se); } } Thanks!

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