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  • WPF Datagrid set the column values only when the row is left

    - by Noam
    Hello I have a simple class. When I use it in winforms binding, whenever I change a value of a cell and leave the cell, the property immediately get changed. Using WPF Datagrid, whenever i change a value of a cell, the property gets set only after I leave the row. That is problematic for me. What am I doing wrong? Here is my code: public class MyClass : IEditableObject, INotifyPropertyChanged { string _name, _lastName; public string Name { get { return _name; } set { _name = value; _lastName = value + " xxx"; OnPropertyChanged("LastName"); MessageBox.Show("Test"); } } private void OnPropertyChanged(string p) { var x = new PropertyChangedEventArgs(p); if (PropertyChanged != null) PropertyChanged(this, x); } public string LastName { get { return _lastName; } set { _lastName = value; } } public void BeginEdit() { } public void CancelEdit() { } public void EndEdit() { } public event PropertyChangedEventHandler PropertyChanged; } public class myBindingList : BindingList<MyClass> { public myBindingList() { AllowNew = true; Add(new MyClass { Name = "noam" }); Add(new MyClass { Name = "yael" }); } }

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  • Replication: SQL Server 2008 Publisher with SQL Server Express 2005 Subscriber

    - by Jeremy
    Here is the setup: SQL Server 2008 Enterprise Server with a Merge Publication. SQL Server 2005 Express with pull subscription. There is no web or ftp setup. This is direct merge replication. Using the RMO objects from C#, I get a "class cannot be found." COM Error when accessing the MergePullSubscription.SynchronizationAgent property. I've tried with both the 2008 RMO dll's (version 10 dll's) and the 2005 RMO dll's (version 9 dll's). When trying to use replmerge.exe, I get the following: 2010-04-10 04:12:05.263 Microsoft SQL Server Merge Agent 9.00.1399.06 2010-04-10 04:12:05.294 Copyright (c) 2000 Microsoft Corporation 2010-04-10 04:12:05.294 2010-04-10 04:12:05.294 The timestamps prepended to the output lines are express ed in terms of UTC time. 2010-04-10 04:12:05.294 User-specified agent parameter values: -Publisher SUN -PublisherDB PRIMROSE -PublisherSecurityMode 1 -Publication PRIMROSE -Distributor SUN -DistributorSecurityMode 1 -Subscriber PVILLE\SQLEXPRESS -SubscriberSecurityMode 1 -SubscriberDB PRIMROSE -SubscriptionType 1 -DistributorLogin sa -DistributorPassword ********** -DistributorSecurityMode 0 -PublisherLogin sa -PublisherPassword ********** -PublisherSecurityMode 0 -SubscriberLogin sa -SubscriberPassword ********** -SubscriberSecurityMode 0 2010-04-10 04:12:05.325 Connecting to Subscriber 'PVILLE\SQLEXPRESS' 2010-04-10 04:12:05.481 Connecting to Distributor 'SUN' 2010-04-10 04:12:05.513 The version of SQL Server running at the Distributor(10. 0.2531.??????????????????) is not compatible with the version of SQL Server runn ing at the Subscriber(9.00.1399.???????L?L?LHL?L?L?L?,?). 2010-04-10 04:12:05.513 Category:NULL Source: Merge Process Number: -2147200979 Message: The version of SQL Server running at the Distributor(10.0.2531.???????? ??????????) is not compatible with the version of SQL Server running at the Subs criber(9.00.1399.???????L?L?LHL?L?L?L?,?). Any ideas?

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  • Java RMI AccessControlException: access denied

    - by Gwilym
    Hey im getting a AccessControlException: access denied when attempting to start up a RMI app im writing, I cant work out why I get this exception if I open it on the default port 1099, or on another dynamic port, my policy file currently grants everything (will change when app is finished). I am stuck as to where It is going wrong, any help would but of great use My code public class Main { /** * @param args the command line arguments */ public static void main(String[] args) throws RemoteException, AlreadyBoundException, MalformedURLException { if (System.getSecurityManager() == null) { System.setSecurityManager ( new RMISecurityManager() ); } CreditCardServer ccs = new CreditCardServer(); int port = 1099; try { port = Integer.valueOf(args[0]); } catch (Exception e) { System.out.println("Invlaid Port"); } if (((port <= 65535) && (port >= 49152)) || port ==1099) { System.out.println("Valid Port"); } else { port = 1099; System.out.println("Port not in Dynamic Range 49152<-->65535"); } System.out.println(port); LocateRegistry.createRegistry(port); LocateRegistry.getRegistry().bind("CreditCardServer", ccs); while (true) { //hum? } } } The Stack Trace vega3 [ia32.linux] 23% java -Djava.security.policy=wideopen.policy -jar "BookStore-CreditCardServer.jar 65000" Valid Port 65000 Exception in thread "main" java.security.AccessControlException: access denied (java.net.SocketPermission 127.0.0.1:1099 connect,resolve) at java.security.AccessControlContext.checkPermission(AccessControlContext.java:342) at java.security.AccessController.checkPermission(AccessController.java:553) at java.lang.SecurityManager.checkPermission(SecurityManager.java:549) at java.lang.SecurityManager.checkConnect(SecurityManager.java:1051) at java.net.Socket.connect(Socket.java:536) at java.net.Socket.connect(Socket.java:492) at java.net.Socket.<init>(Socket.java:389) at java.net.Socket.<init>(Socket.java:203) at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40) at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:146) at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613) at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216) at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202) at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:340) at sun.rmi.registry.RegistryImpl_Stub.bind(Unknown Source) at bookstorecreditcardserver.Main.main(Main.java:56) My Policy File grant { // Allow everything for now permission java.security.AllPermission; };

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  • Array variable initialization error in Java

    - by trinity
    Hello I am trying to write a Java program that reads an input file consisting of URLs, extracts tokens from these, and keeps track of how many times each token appears in the file. I've written the following code: import java.io.*; import java.net.*; public class Main { static class Tokens { String name; int count; } public static void main(String[] args) { String url_str,host; String htokens[]; URL url; boolean found=false; Tokens t[]; int i,j,k; try { File f=new File("urlfile.txt"); FileReader fr=new FileReader(f); BufferedReader br=new BufferedReader(fr); while((url_str=br.readLine())!=null) { url=new URL(url_str); host=url.getHost(); htokens=host.split("\\.|\\-|\\_|\\~|[0-9]"); for(i=0;i<htokens.length;i++) { if(!htokens[i].isEmpty()) { for(j=0;j<t.length;j++) { if(htokens[i].equals(t[j].name)) { t[j].count++; found=true; } } if(!found) { k=t.length; t[k].name=htokens[i]; t[k].count=1; } } } System.out.println(t.length + "class tokens :"); for(i=0;i<t.length;i++) { System.out.println( "name :"+t[i].name+" frequency :"+t[i].count); } } br.close(); fr.close(); } catch(Exception e) { System.out.println(e); } } } But when I run it, it says: variable t not initialized.. What should I do to set it right?

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  • Sql Query - Selecting rows where user can be both friend and user

    - by Gublooo
    Hey Sorry the title is not very clear. This is a follow up to my earlier question where one of the members helped me with a query. I have a following friends Table Friend friend_id - primary key user_id user_id_friend status The way the table is populated is - when I send a friend request to John - my userID appears in user_id and Johns userID appears in user_id_friend. Now another scenario is say Mike sends me a friend request - in this case mike's userID will appear in user_id and my userID will appear in user_id_friend So to find all my friends - I need to run a query to find where my userID appears in both user_id column as well as user_id_friend column What I am trying to do now is - when I search for user say John - I want all users Johns listed on my site to show up along with the status of whether they are my friend or not and if they are not - then show a "Add Friend" button. Based on the previous post - I got this query which does part of the job - My example user_id is 1: SELECT u.user_id, f.status FROM user u LEFT OUTER JOIN friend f ON f.user_id = u.user_id and f.user_id_friend = 1 where u.name like '%' So this only shows users with whom I am friends where they have sent me request ie my userID appears in user_id_friend. Although I am friends with others (where my userID appears in user_id column) - this query will return that as null To get those I need another query like this SELECT u.user_id, f.status FROM user u LEFT OUTER JOIN friend f ON f.user_id_friend = u.user_id and f.user_id = 1 where u.name like '%' So how do I combine these queries to return 1 set of users and what my friendship status with them is. I hope my question is clear Thanks

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  • Alert Dialog with custom layout failing

    - by cmptrer
    So this is related to a question I asked earlier. I am trying to display an alert using a specified layout. My layout is: And the code to call and show the alert dialog is: Context mContext = getApplicationContext(); AlertDialog.Builder builder = new AlertDialog.Builder(mContext); // use a custom View defined in xml View view = LayoutInflater.from(mContext).inflate(R.layout.sell_dialog, (ViewGroup) findViewById(R.id.layout_root)); builder.setView(view); builder.setPositiveButton(android.R.string.ok, new OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // do whatever you want with the input } }); AlertDialog alertDialog = builder.create(); alertDialog.show(); When I run it I get an error saying: Uncaught handler: thread main exiting due to uncaught exception android.view.WindowManager$NadTokenException: Unable to add window -- token null is not for an application I've looked through the android development site and can't figure it out. I think I'm just missing something obvious but the fix isn't jumping out at me. How can I get this alert dialog to display?

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  • How do I get google protocol buffer messages over a socket connection without disconnecting the clie

    - by Dan
    Hi there, I'm attempting to send a .proto message from an iPhone application to a Java server via a socket connection. However so far I'm running into an issue when it comes to the server receiving the data; it only seems to process it after the client connection has been terminated. This points to me that the data is getting sent, but the server is keeping its inputstream open and waiting for more data. Would anyone know how I might go about solving this? The current code (or at least the relevant parts) is as follows: iPhone: Person *person = [[[[Person builder] setId:1] setName:@"Bob"] build]; RequestWrapper *request = [[[RequestWrapper builder] setPerson:person] build]; NSData *data = [request data]; AsyncSocket *socket = [[AsyncSocket alloc] initWithDelegate:self]; if (![socket connectToHost:@"192.168.0.6" onPort:6666 error:nil]){ [self updateLabel:@"Problem connecting to socket!"]; } else { [self updateLabel:@"Sending data to server..."]; [socket writeData:data withTimeout:-1 tag:0]; [self updateLabel:@"Data sent, disconnecting"]; //[socket disconnect]; } Java: try { RequestWrapper wrapper = RequestWrapper.parseFrom(socket.getInputStream()); Person person = wrapper.getPerson(); if (person != null) { System.out.println("Persons name is " + person.getName()); socket.close(); } On running this, it seems to hang on the line where the RequestWrapper is processing the inputStream. I did try replacing the socket writedata method with [request writeToOutputStream:[socket getCFWriteStream]]; Which I thought might work, however I get an error claiming that the "Protocol message contained an invalid tag (zero)". I'm fairly certain that it doesn't contain an invalid tag as the message works when sending it via the writedata method. Any help on the matter would be greatly appreciated! Cheers! Dan (EDIT: I should mention, I am using the metasyntactic gpb code; and the cocoaasyncsocket implementation)

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  • why does Integrated Windows Authentication fail when clients access off the network

    - by Bryan
    My background is not with web applications so this problem is hard for me to explain easily. First I'll try to describe the setup. Client setup:-Only browser that is effected is IE 6-8 (Firefox, chrome, opera, and safari all work fine) -A user will try to access our web application from a company laptop that is not connected to our network. -This machine will be a member of our workgroup and have the company DNS listed as a trusted intranet site. (to which the application in question would be a member) -The security logon mode is set to Automatic Logon only in intranet zone only, and IWA authentication is enabled on the clients browser.Server setup:-Windows server 2003 fp2-The application will first redirect to an Authorization asp page which has anonymous access disabled and IWA enabled in IIS.what should happen is that, since the client is not currently on the network, when this page is called it should prompt the user for network credentials. But with IE, instead of prompting, the user gets a page cannot be displayed error because the IIS manager is denying access to the asp page. If the company DNS is removed from the trusted intranet site list then it prompts correctly but disables single sign on the next time that computer is connected to the network or vpn. My assumption is that since IE uses IWA and the site is listed as an internal site, when no network is found IE just sends nulls to the server attempting to authenticate which is swiftly punted back. Other browsers do not have security zones so when network credentials are not present the server prompts for them. Is there a way to get around this so that our clients can keep the company DNS in the intranet zone but still have the server prompt for credentials when not on the network? Any attempt to allow for anonymous access on the asp page, as far as I know, will cause AUTH_USER to return null and again break SSO. I realize this is slightly rambling so I will do my best to clarify and questions you guys might have. Thanks in advance.

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  • WPF ComboBox IsSynchronised Default Value

    - by LnDCobra
    I am trying to display a default value (or even NO value) when selected index is -1, or selecteditem is null. This normally works perfectly fine but when I enable IsSynchronizedWithCurrentItem and set it to True, the first value in my DataTable gets displayed. How can I have both IsSynchronizedWithCurrentItem ="True" and show no/default value when it is loaded. My Combo Box XAML: <GroupBox Name="ClientGroup" Header="Client" Margin="63,182,0,177" FontSize="14" HorizontalAlignment="Left" Width="298"> <ComboBox Name="Supplier" Grid.IsSharedSizeScope="True" ItemsSource="{Binding}" IsEditable="True" Text="Please Choose..." TextSearch.TextPath="CompanyName" IsSynchronizedWithCurrentItem="True" Height="23" VerticalAlignment="Top" Margin="0,6,6,0" FontSize="11" StaysOpenOnEdit="True"> <ComboBox.ItemTemplate> <DataTemplate> <Grid Margin="0,5,0,5"> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto" SharedSizeGroup="CompanyName" /> <ColumnDefinition Width="Auto" SharedSizeGroup="EIC" /> </Grid.ColumnDefinitions> <TextBlock Text="{Binding CompanyName}" Grid.Column="0" /> <TextBlock Text="{Binding EIC, StringFormat=' ({0})'}" Grid.Column="1" FontFamily="Courier New" FontWeight="Bold" FontSize="12" /> </Grid> </DataTemplate> </ComboBox.ItemTemplate> </ComboBox> </GroupBox> My CS code behind: ClientGroup.DataContext = (new CompanyDealsDataSetTableAdapters.CompanyTableAdapter()).GetData(); When I start my application it automatically selects the first row in my data table. It works as expected when I remove IsSynchronizedWithCurrentItem. Any ideas?

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  • javascript: detect if XP or Classic windows theme is enabled

    - by mkoryak
    Is there any way to detect which windows XP theme is in use? I suspect that there is no specific api call you can make, but you may be able to figure it out by checking something on some DOM element, ie feature detection. Another question: does the classic theme even exist on windows vista or windows 7? edit - this is my solution: function isXpTheme() { var rgb; var map = { "rgb(212,208,200)" : false, "rgb(236,233,216)" : true }; var $elem = $("<button>"); $elem.css("backgroundColor", "ButtonFace"); $("body").append($elem); var elem = $elem.get(0); if (document.defaultView && document.defaultView.getComputedStyle) { s = document.defaultView.getComputedStyle(elem, ""); rgb = s && s.getPropertyValue("background-color"); } else if (elem.currentStyle) { rgb = (function (el) { // get a rgb based color on IE var oRG =document.body.createTextRange(); oRG.moveToElementText(el); var iClr=oRG.queryCommandValue("BackColor"); return "rgb("+(iClr & 0xFF)+","+((iClr & 0xFF00)>>8)+","+ ((iClr & 0xFF0000)>>16)+")"; })(elem); } else if (elem.style["backgroundColor"]) { rgb = elem.style["backgroundColor"]; } else { rgb = null; } $elem.remove(); rgb = rgb.replace(/[ ]+/g,"") if(rgb){; return map[rgb]; } } Next step is to figure out what this function returns on non-xp machines and/or figure out how to detect windows boxes. I have tested this in windows XP only, so vista and windows 7 might give different color values, it should be easy to add though. Here is a demo page of this in action: http://programmingdrunk.com/current-projects/isXpTheme/

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  • NHibernate - joining on a subquery using ICriteria

    - by owensymes.mp
    I have a SQL query that I need to represent using NHibernate's ICriteria API. SELECT u.Id as Id, u.Login as Login, u.FirstName as FirstName, u.LastName as LastName, gm.UserGroupId_FK as UserGroupId, inner.Data1, inner.Data2, inner.Data3 FROM dbo.User u inner join dbo.GroupMember gm on u.Id = gm.UserAnchorId_FK left join ( SELECT di.UserAnchorId_FK, sum(di.Data1) as Data1, sum(di.Data2) as Data2, sum(di.Data3) as Data3 FROM dbo.DailyInfo di WHERE di.Date between '2009-04-01' and '2009-06-01' GROUP BY di.UserAnchorId_FK ) inner ON inner.UserAnchorId_FK = u.Id WHERE gm.UserGroupId_FK = 195 Attempts so far have included mapping 'User' and 'DailyInfo' classes (my entities) and making a DailyInfo object a property of the User object. However, how to map the foreign key relationship between them is still a mystery, ie <one-to-one></one-to-one> <one-to-many></one-to-many> <generator class="foreign"><param name="property">Id</param></generator> (!) Solutions on the web are generally to do with subqueries within a WHERE clause, however I need to left join on this subquery instead to ensure NULL values are returned for rows that do not join. I have the feeling that I should be using a Criteria for the outer query, then forming a 'join' with a DetachedCriteria to represent the subquery?

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  • Extracting URIs from RDF web page in Java using Jena Library

    - by Prannoy Mittal
    I have written following code for extratcting URIs from a web page with content type application/rdf-xml for Linked Data application. public static void test(String url) { try { Model read = ModelFactory.createDefaultModel().read(url); System.out.println("to go"); StmtIterator si; si = read.listStatements(); System.out.println("to go"); while(si.hasNext()) { Statement s=si.nextStatement(); Resource r=s.getSubject(); Property p=s.getPredicate(); RDFNode o=s.getObject(); System.out.println(r.getURI()); System.out.println(p.getURI()); System.out.println(o.asResource().getURI()); } } catch(JenaException | NoSuchElementException c) { } } But above code is not extracting all URIs. It provides only few of the URIs. Please guide me where i Went wrong?? hey Rafeel For Eq: for XML File : <?xml version="1.0"?> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:ex="http://example.org/stuff/1.0/"> <rdf:Description rdf:about="http://www.w3.org/TR/rdf-syntax-grammar" dc:title="RDF/XML Syntax Specification (Revised)"> <ex:editor> <rdf:Description ex:fullName="Dave Beckett"> <ex:homePage rdf:resource="http://purl.org/net/dajobe/" /> </rdf:Description> </ex:editor> </rdf:Description> </rdf:RDF> The output is : Subject URI is http://www.w3.org/TR/rdf-syntax-grammar Predicate URI is http://example.org/stuff/1.0/editor Object URI is null Subject URI is http://www.w3.org/TR/rdf-syntax-grammar Predicate URI is http://purl.org/dc/elements/1.1/title Website is read

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  • Why my Google endpoint is always the same?

    - by joetsuihk
    always: https://www.google.com/accounts/o8/ud i got wordpress openid ok. so i think is is just discovery phase got some probelms.. <?php $ch = curl_init(); $url = 'https://www.google.com/accounts/o8/id'; $url = $url.'?'; $url = $url.'openid.mode=checkid_setup'; $url = $url.'&openid.ns=http://specs.openid.net/auth/2.0'; $url = $url.'&openid.claimed_id=http://specs.openid.net/auth/2.0/identifier_select'; $url = $url.'&openid.identity=http://specs.openid.net/auth/2.0/identifier_select'; $url = $url.'&openid.return_to='.site_url().'/user/openid/login_callback'; $url = $url.'&openid.realm=http://www.example.com/'; // set url curl_setopt($ch, CURLOPT_URL, $url); //return the transfer as a string curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 2); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_HTTPHEADER,array("Accept: */*")); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); // $output contains the output string $xdr = curl_exec($ch); if (!$xdr) { die(curl_error($ch)); } // close curl resource to free up system resources curl_close($ch); $xml = new SimpleXMLElement($xdr); $url = $xml->XRD->Service->URI; $request = $connection->begin($url); $request always null...

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  • Comparing objects with IDispatch to get main frame only (BHO)

    - by shaimagz
    I don't know if anyone familiar with BHO (Browser Helper Object), but an expert in c++ can help me too. In my BHO I want to run the OnDocumentComplete() function only on the main frame - the first container and not all the Iframes inside the current page. (an alternative is to put some code only when this is the main frame). I can't find how to track when is it the main frame that being populated. After searching in google I found out that each frame has "IDispatch* pDisp", and I have to compare it with a pointer to the first one. This is the main function: STDMETHODIMP Browsarity::SetSite(IUnknown* pUnkSite) { if (pUnkSite != NULL) { // Cache the pointer to IWebBrowser2. HRESULT hr = pUnkSite->QueryInterface(IID_IWebBrowser2, (void **)&m_spWebBrowser); if (SUCCEEDED(hr)) { // Register to sink events from DWebBrowserEvents2. hr = DispEventAdvise(m_spWebBrowser); if (SUCCEEDED(hr)) { m_fAdvised = TRUE; } } } else { // Unregister event sink. if (m_fAdvised) { DispEventUnadvise(m_spWebBrowser); m_fAdvised = FALSE; } // Release cached pointers and other resources here. m_spWebBrowser.Release(); } // Call base class implementation. return IObjectWithSiteImpl<Browsarity>::SetSite(pUnkSite); } This is where I want to be aware whether its the main window(frame) or not: void STDMETHODCALLTYPE Browsarity::OnDocumentComplete(IDispatch *pDisp, VARIANT *pvarURL) { // as you can see, this function get the IDispatch *pDisp which is unique to every frame. //some code } I asked this question on Microsoft forum and I got an answer without explaining how to actually implement that: http://social.msdn.microsoft.com/Forums/en-US/ieextensiondevelopment/thread/7c433bfa-30d7-42db-980a-70e62640184c

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  • Is this a good way to do a game loop for an iPhone game?

    - by Danny Tuppeny
    Hi all, I'm new to iPhone dev, but trying to build a 2D game. I was following a book, but the game loop it created basically said: function gameLoop update() render() sleep(1/30th second) gameLoop The reasoning was that this would run at 30fps. However, this seemed a little mental, because if my frame took 1/30th second, then it would run at 15fps (since it'll spend as much time sleeping as updating). So, I did some digging and found the CADisplayLink class which would sync calls to my gameLoop function to the refresh rate (or a fraction of it). I can't find many samples of it, so I'm posting here for a code review :-) It seems to work as expected, and it includes passing the elapsed (frame) time into the Update method so my logic can be framerate-independant (however I can't actually find in the docs what CADisplayLink would do if my frame took more than its allowed time to run - I'm hoping it just does its best to catch up, and doesn't crash!). // // GameAppDelegate.m // // Created by Danny Tuppeny on 10/03/2010. // Copyright Danny Tuppeny 2010. All rights reserved. // #import "GameAppDelegate.h" #import "GameViewController.h" #import "GameStates/gsSplash.h" @implementation GameAppDelegate @synthesize window; @synthesize viewController; - (void) applicationDidFinishLaunching:(UIApplication *)application { // Create an instance of the first GameState (Splash Screen) [self doStateChange:[gsSplash class]]; // Set up the game loop displayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(gameLoop)]; [displayLink setFrameInterval:2]; [displayLink addToRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; } - (void) gameLoop { // Calculate how long has passed since the previous frame CFTimeInterval currentFrameTime = [displayLink timestamp]; CFTimeInterval elapsed = 0; // For the first frame, we want to pass 0 (since we haven't elapsed any time), so only // calculate this in the case where we're not the first frame if (lastFrameTime != 0) { elapsed = currentFrameTime - lastFrameTime; } // Keep track of this frames time (so we can calculate this next time) lastFrameTime = currentFrameTime; NSLog([NSString stringWithFormat:@"%f", elapsed]); // Call update, passing the elapsed time in [((GameState*)viewController.view) Update:elapsed]; } - (void) doStateChange:(Class)state { // Remove the previous GameState if (viewController.view != nil) { [viewController.view removeFromSuperview]; [viewController.view release]; } // Create the new GameState viewController.view = [[state alloc] initWithFrame:CGRectMake(0, 0, IPHONE_WIDTH, IPHONE_HEIGHT) andManager:self]; // Now set as visible [window addSubview:viewController.view]; [window makeKeyAndVisible]; } - (void) dealloc { [viewController release]; [window release]; [super dealloc]; } @end Any feedback would be appreciated :-) PS. Bonus points if you can tell me why all the books use "viewController.view" but for everything else seem to use "[object name]" format. Why not [viewController view]?

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  • Problem with XElement and XslCompiledTransform

    - by Graham Clark
    I'm having some trouble using a combination of XElement and XslCompiledTransform. I've put the sample code I'm using below. If I get my input XML using the GetXmlDocumentXml() method, it works fine. If I use the GetXElementXml() method instead, I get an InvalidOperationException when calling the Transform method of XslComiledTransform: Token Text in state Start would result in an invalid XML document. Make sure that the ConformanceLevel setting is set to ConformanceLevel.Fragment or ConformanceLevel.Auto if you want to write an XML fragment. The CreateNavigator method on both XElement and XmlDocument returns an XPathNavigator. What extra stuff is XmlDocument doing so this all works, and how can I do the same with XElement? Am I just doing something insane? static void Main(string[] args) { XslCompiledTransform stylesheet = GetStylesheet(); // not shown for brevity IXPathNavigable input = this.GetXElementXml(); using (MemoryStream ms = this.TransformXml(input, stylesheet)) { XmlReader xr = XmlReader.Create(ms); xr.MoveToContent(); } } private MemoryStream TransformXml( IXPathNavigable xml, XslCompiledTransform stylesheet) { MemoryStream transformed = new MemoryStream(); XmlWriter writer = XmlWriter.Create(transformed); stylesheet.Transform(xml, null, writer); transformed.Position = 0; return transformed; } private IXPathNavigable GetXElementXml() { var xml = new XElement("x", new XElement("y", "sds")); return xml.CreateNavigator(); } private IXPathNavigable GetXmlDocumentXml() { var xml = new XmlDocument(); xml.LoadXml("<x><y>sds</y></x>"); return xml.CreateNavigator(); }

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  • problem with revalidating a jframe.

    - by John Quesie
    I have this code which should take the radio button input do a little math and display a popup. which it does fine. but then it is supposed to re validate and ask the next question. when i get to the second question, the answer always comes out as the isSelected(true) value no matter which radio button you click on. SO to be clear the first time through it works fin but when the second question comes up, it just takes the default radio button every time. public class EventHandler implements ActionListener { private Main gui; public EventHandler(Main gui){ this.gui = gui; } public void actionPerformed(ActionEvent e){ String answer = ""; double val = 1; //get current answer set String [] anArr = gui.getAnswers(gui.currentStage, gui.currentQuestion); if(e.getSource() == gui.exit){ System.exit(0); } if(e.getSource() == gui.submit){ if(gui.a1.isSelected()){ answer = anArr[0]; val = gui.getScore(1); } if(gui.a2.isSelected()){ answer = anArr[1]; val = gui.getScore(2); } if(gui.a3.isSelected()){ answer = anArr[2]; val = gui.getScore(3); } if(gui.a4.isSelected()){ answer = anArr[3];; val = gui.getScore(4); } JOptionPane.showMessageDialog(null, popupMessage(answer, val), "Your Answer", 1); //compute answer here //figure out what next question is to send gui.moveOn(); gui.setQA(gui.currentStage, gui.currentQuestion); //resets gui gui.goWest(); gui.q.revalidate(); } } public String popupMessage(String ans, double val){ //displays popup after an answer has been choosen gui.computeScore(val); String text = " You Answered " + ans + " Your score is now " + gui.yourScore ; return text; } } public class Main extends JFrame { public JLabel question; public JButton exit; public JButton submit; public JRadioButton a1; public JRadioButton a2; public JRadioButton a3; public JRadioButton a4; public ButtonGroup bg; public double yourScore = 1; public int currentQuestion = 1; public String currentStage = "startup"; JPanel q; public Main(){ setTitle("Ehtics Builder"); setLocation(400,400); setLayout(new BorderLayout(5,5)); setQA("startup", 1); goNorth(); goEast(); goWest(); goSouth(); goCenter(); pack(); setVisible(true); setDefaultCloseOperation(EXIT_ON_CLOSE); } public void goNorth(){ } public void goWest(){ q = new JPanel(); q.setLayout(new GridLayout(0,1)); q.add(question); bg.add(a1); bg.add(a2); bg.add(a3); bg.add(a4); a1.setSelected(true); q.add(a1); q.add(a2); q.add(a3); q.add(a4); add(q, BorderLayout.WEST); System.out.println(); } public void goEast(){ } public void goSouth(){ JPanel p = new JPanel(); p.setLayout(new FlowLayout(FlowLayout.CENTER)); exit = new JButton("Exit"); submit = new JButton("Submit"); p.add(exit); p.add(submit); add(p, BorderLayout.SOUTH); EventHandler myEventHandler = new EventHandler(this); exit.addActionListener(myEventHandler); submit.addActionListener(myEventHandler); } public void goCenter(){ } public static void main(String[] args) { Main open = new Main(); } public String getQuestion(String type, int num){ //reads the questions from a file String question = ""; String filename = ""; String [] ques; num = num - 1; if(type.equals("startup")){ filename = "startup.txt"; }else if(type.equals("small")){ filename = "small.txt"; }else if(type.equals("mid")){ filename = "mid.txt"; }else if(type.equals("large")){ filename = "large.txt"; }else{ question = "error"; return question; } ques = readFile(filename); for(int i = 0;i < ques.length;i++){ if(i == num){ question = ques[i]; } } return question; } public String [] getAnswers(String type, int num){ //reads the answers from a file String filename = ""; String temp = ""; String [] group; String [] ans; num = num - 1; if(type.equals("startup")){ filename = "startupA.txt"; }else if(type.equals("small")){ filename = "smallA.txt"; }else if(type.equals("mid")){ filename = "midA.txt"; }else if(type.equals("large")){ filename = "largeA.txt"; }else{ System.out.println("Error"); } group = readFile(filename); for(int i = 0;i < group.length;i++){ if(i == num){ temp = group[i]; } } ans = temp.split("-"); return ans; } public String [] getValues(String type, int num){ //reads the answers from a file String filename = ""; String temp = ""; String [] group; String [] vals; num = num - 1; if(type.equals("startup")){ filename = "startupV.txt"; }else if(type.equals("small")){ filename = "smallV.txt"; }else if(type.equals("mid")){ filename = "midV.txt"; }else if(type.equals("large")){ filename = "largeV.txt"; }else{ System.out.println("Error"); } group = readFile(filename); for(int i = 0;i < group.length;i++){ if(i == num){ temp = group[i]; } } vals = temp.split("-"); return vals; } public String [] readFile(String filename){ //reads the contentes of a file, for getQuestions and getAnswers String text = ""; int i = -1; FileReader in = null; File f = new File(filename); try{ in = new FileReader(f); }catch(FileNotFoundException e){ System.out.println("file does not exist"); } try{ while((i = in.read()) != -1) text += ((char)i); }catch(IOException e){ System.out.println("Error reading file"); } try{ in.close(); }catch(IOException e){ System.out.println("Error reading file"); } String [] questions = text.split(":"); return questions; } public void computeScore(double val){ //calculates you score times the value of your answer yourScore = val * yourScore; } public double getScore(int aNum){ //gets the score of an answer, stage and q number is already set in the class aNum = aNum - 1; double val = 0; double [] valArr = new double[4]; for(int i = 0;i < getValues(currentStage, currentQuestion).length;i++){ val = Double.parseDouble(getValues(currentStage, currentQuestion)[i]); valArr[i] = val; } if(aNum == 0){ val = valArr[0]; } if(aNum == 1){ val = valArr[1]; } if(aNum == 2){ val = valArr[2]; } if(aNum == 3){ val = valArr[3]; } // use current stage and questiion and trhe aNum to get the value for that answer return val; } public void nextQuestion(int num){ //sets next question to use currentQuestion = num; } public void nextStage(String sta){ // sets next stage to use currentStage = sta; } public void moveOn(){ // uses the score and current question and stage to determine wher to go next and what stage to use next nextQuestion(2); nextStage("startup"); } public void setQA(String level, int num){ String [] arr = getAnswers(level, num); question = new JLabel(getQuestion(level, num)); bg = new ButtonGroup(); a1 = new JRadioButton(arr[0]); a2 = new JRadioButton(arr[1]); a3 = new JRadioButton(arr[2]); a4 = new JRadioButton(arr[3]); } }

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  • T-SQL While Loop and concatenation

    - by JustinT
    I have a SQL query that is supposed to pull out a record and concat each to a string, then output that string. The important part of the query is below. DECLARE @counter int; SET @counter = 1; DECLARE @tempID varchar(50); SET @tempID = ''; DECLARE @tempCat varchar(255); SET @tempCat = ''; DECLARE @tempCatString varchar(5000); SET @tempCatString = ''; WHILE @counter <= @tempCount BEGIN SET @tempID = ( SELECT [Val] FROM #vals WHERE [ID] = @counter); SET @tempCat = (SELECT [Description] FROM [Categories] WHERE [ID] = @tempID); print @tempCat; SET @tempCatString = @tempCatString + '<br/>' + @tempCat; SET @counter = @counter + 1; END When the script runs, @tempCatString outputs as null while @tempCat always outputs correctly. Is there some reason that concatenation won't work inside a While loop? That seems wrong, since incrementing @counter works perfectly. So is there something else I'm missing?

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  • while loop ignore the event listener

    - by Tamer
    so when i run this code to try to change the background the GUI crashes and gets stuck in a infinite while loop ignoring the event listeners. here is the code: `private Panel getPanel1() { if (panel1 == null) { panel1 = new Panel(); panel1.setLayout(new GridBagLayout()); while(frame.isVisible()){ panel1.addMouseListener(new java.awt.event.MouseAdapter() { public void mouseClicked(java.awt.event.MouseEvent e) { frame.setVisible(false); } }); int r = (int) (Math.random()*255); int g = (int) (Math.random()*255); int b = (int) (Math.random()*255); Color c = new Color(r, g, b); panel1.setBackground(c); try { Thread.sleep(4000); } catch (InterruptedException e1) { e1.printStackTrace(); } panel1.addMouseListener(new java.awt.event.MouseAdapter() { public void mouseClicked(java.awt.event.MouseEvent e) { /*panel1.setVisible(false); frame.setVisible(false);*/ System.exit(0); } }); } } return panel1; }` instead of exiting the loop of terminating the program or event changing the background it just displays the panel and does nothing else and i have to force it to quit. what should i do?

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  • Simulating aspects of static-typing in a duck-typed language

    - by Mike
    In my current job I'm building a suite of Perl scripts that depend heavily on objects. (using Perl's bless() on a Hash to get as close to OO as possible) Now, for lack of a better way of putting this, most programmers at my company aren't very smart. Worse, they don't like reading documentation and seem to have a problem understanding other people's code. Cowboy coding is the game here. Whenever they encounter a problem and try to fix it, they come up with a horrendous solution that actually solves nothing and usually makes it worse. This results in me, frankly, not trusting them with code written in duck typed language. As an example, I see too many problems with them not getting an explicit error for misusing objects. For instance, if type A has member foo, and they do something like, instance->goo, they aren't going to see the problem immediately. It will return a null/undefined value, and they will probably waste an hour finding the cause. Then end up changing something else because they didn't properly identify the original problem. So I'm brainstorming for a way to keep my scripting language (its rapid development is an advantage) but give an explicit error message when an an object isn't used properly. I realize that since there isn't a compile stage or static typing, the error will have to be at run time. I'm fine with this, so long as the user gets a very explicit notice saying "this object doesn't have X" As part of my solution, I don't want it to be required that they check if a method/variable exists before trying to use it. Even though my work is in Perl, I think this can be language agnostic.

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  • Setting custom behaviour via .config file - why doesn't this work?

    - by Andrew Shepherd
    I am attempting to insert a custom behavior into my service client, following the example here. I appear to be following all of the steps, but I am getting a ConfigurationErrorsException. Is there anyone more experienced than me who can spot what I'm doing wrong? Here is the entire app.config file. <?xml version="1.0" encoding="utf-8" ?> <configuration> <system.serviceModel> <behaviors> <endpointBehaviors> <behavior name="ClientLoggingEndpointBehaviour"> <myLoggerExtension /> </behavior> </endpointBehaviors> </behaviors> <extensions> <behaviorExtensions> <add name="myLoggerExtension" type="ChatClient.ClientLoggingEndpointBehaviourExtension, ChatClient, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null"/> </behaviorExtensions> </extensions> <bindings> </bindings> <client> <endpoint behaviorConfiguration="ClientLoggingEndpointBehaviour" name="ChatRoomClientEndpoint" address="http://localhost:8016/ChatRoom" binding="wsDualHttpBinding" contract="ChatRoomLib.IChatRoom" /> </client> </system.serviceModel> </configuration> Here is the exception message: An error occurred creating the configuration section handler for system.serviceModel/behaviors: Extension element 'myLoggerExtension' cannot be added to this element. Verify that the extension is registered in the extension collection at system.serviceModel/extensions/behaviorExtensions. Parameter name: element (C:\Documents and Settings\Andrew Shepherd\My Documents\Visual Studio 2008\Projects\WcfPractice\ChatClient\bin\Debug\ChatClient.vshost.exe.config line 5) I know that I've correctly written the reference to the ClientLoggingEndpointBehaviourExtensionobject, because through the debugger I can see it being instantiated.

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  • ASP.NET trace level

    - by axk
    This question is related to my another question. With trace enabled I can get the following(not quite verbose) trace of a page request: [2488] aspx.page: Begin PreInit [2488] aspx.page: End PreInit [2488] aspx.page: Begin Init [2488] aspx.page: End Init [2488] aspx.page: Begin InitComplete [2488] aspx.page: End InitComplete [2488] aspx.page: Begin PreLoad [2488] aspx.page: End PreLoad [2488] aspx.page: Begin Load [2488] aspx.page: End Load [2488] aspx.page: Begin LoadComplete [2488] aspx.page: End LoadComplete [2488] aspx.page: Begin PreRender [2488] aspx.page: End PreRender [2488] aspx.page: Begin PreRenderComplete [2488] aspx.page: End PreRenderComplete [2488] aspx.page: Begin SaveState [2488] aspx.page: End SaveState [2488] aspx.page: Begin SaveStateComplete [2488] aspx.page: End SaveStateComplete [2488] aspx.page: Begin Render [2488] aspx.page: End Render Reflector shows that System.Web.UI.Page.ProcessRequestMain method which I suppose does the main part of request processing has more conditional trace messges. For example: if (context.TraceIsEnabled) { this.Trace.Write("aspx.page", "Begin PreInit"); } if (EtwTrace.IsTraceEnabled(5, 4)) { EtwTrace.Trace(EtwTraceType.ETW_TYPE_PAGE_PRE_INIT_ENTER, this._context.WorkerRequest); } this.PerformPreInit(); if (EtwTrace.IsTraceEnabled(5, 4)) { EtwTrace.Trace(EtwTraceType.ETW_TYPE_PAGE_PRE_INIT_LEAVE, this._context.WorkerRequest); } if (context.TraceIsEnabled) { this.Trace.Write("aspx.page", "End PreInit"); } if (context.TraceIsEnabled) { this.Trace.Write("aspx.page", "Begin Init"); } if (EtwTrace.IsTraceEnabled(5, 4)) { EtwTrace.Trace(EtwTraceType.ETW_TYPE_PAGE_INIT_ENTER, this._context.WorkerRequest); } this.InitRecursive(null); So there are these EwtTrace.Trace messages which I don't see I the trace. Going deeper with Reflector shows that EtwTrace.IsTraceEnabled is checking if the appropriate tracelevel set: internal static bool IsTraceEnabled(int level, int flag) { return ((level < _traceLevel) && ((flag & _traceFlags) != 0)); } So the question is how do I control these _traceLevel and _traceFlags and where should these trace messages ( EtwTrace.Trace ) go? The code I'm looking at is of .net framework 2.0 @Edit: I guess I should start with ETW Tracing MSDN entry.

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  • How do I configure a C# web service client to send HTTP request header and body in parallel?

    - by Christopher
    Hi, I am using a traditional C# web service client generated in VS2008 .Net 3.5, inheriting from SoapHttpClientProtocol. This is connecting to a remote web service written in Java. All configuration is done in code during client initialization, and can be seen below: ServicePointManager.Expect100Continue = false; ServicePointManager.DefaultConnectionLimit = 10; var client = new APIService { EnableDecompression = true, Url = _url + "?guid=" + Guid.NewGuid(), Credentials = new NetworkCredential(user, password, null), PreAuthenticate = true, Timeout = 5000 // 5 sec }; It all works fine, but the time taken to execute the simplest method call is almost double the network ping time. Whereas a Java test client takes roughly the same as the network ping time: C# client ~ 550ms Java client ~ 340ms Network ping ~ 300ms After analyzing the TCP traffic for a session discovered the following: Basically, the C# client sent TCP packets in the following sequence. Client Send HTTP Headers in one packet. Client Waits For TCP ACK from server. Client Sends HTTP Body in one packet. Client Waits For TCP ACK from server. The Java client sent TCP packets in the following sequence. Client Sends HTTP Headers in one packet. Client Sends HTTP Body in one packet. Client Revieves ACK for first packet. Client Revieves ACK for second packet. Client Revieves ACK for second packet. Is there anyway to configure the C# web service client to send the header/body in parallel as the Java client appears to? Any help or pointers much appreciated.

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  • GDI RoundRect on Compact Framework: make rounded rectangle's outside transparent.

    - by VansFannel
    Hello! I'm using the RoundRect GDI function to draw a rounded rectangle following this example: .NET CF Custom Control: RoundedGroupBox Because all controls are square, it also draw the corners outside of the rounded rectangle. How can I make this space left outside the rectangle transparent? The OnPaint method is: protected override void OnPaint(PaintEventArgs e) { int outerBrushColor = HelperMethods.ColorToWin32(m_outerColor); int innerBrushColor = HelperMethods.ColorToWin32(this.BackColor); IntPtr hdc = e.Graphics.GetHdc(); try { IntPtr hbrOuter = NativeMethods.CreateSolidBrush(outerBrushColor); IntPtr hOldBrush = NativeMethods.SelectObject(hdc, hbrOuter); NativeMethods.RoundRect(hdc, 0, 0, this.Width, this.Height, m_diametro, m_diametro); IntPtr hbrInner = NativeMethods.CreateSolidBrush(innerBrushColor); NativeMethods.SelectObject(hdc, hbrInner); NativeMethods.RoundRect(hdc, 0, 18, this.Width, this.Height, m_diametro, m_diametro); NativeMethods.SelectObject(hdc, hOldBrush); NativeMethods.DeleteObject(hbrOuter); NativeMethods.DeleteObject(hbrInner); } finally { e.Graphics.ReleaseHdc(hdc); } if (!string.IsNullOrEmpty(m_roundedGroupBoxText)) { Font titleFont = new Font("Tahoma", 9.0F, FontStyle.Bold); Brush titleBrush = new SolidBrush(this.BackColor); try { e.Graphics.DrawString(m_roundedGroupBoxText, titleFont, titleBrush, 14.0F, 2.0F); } finally { titleFont.Dispose(); titleBrush.Dispose(); } } base.OnPaint(e); } An the OnPaintBackground is: protected override void OnPaintBackground(PaintEventArgs e) { if (this.Parent != null) { SolidBrush backBrush = new SolidBrush(this.Parent.BackColor); try { e.Graphics.FillRectangle(backBrush, 0, 0, this.Width, this.Height); } finally { backBrush.Dispose(); } } } Thank you!

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  • C++: Explicit DLL Loading: First-chance Exception on non "extern C" functions

    - by Shiftbit
    I am having trouble importing my C++ functions. If I declare them as C functions I can successfully import them. When explicit loading, if any of the functions are missing the extern as C decoration I get a the following exception: First-chance exception at 0x00000000 in cpp.exe: 0xC0000005: Access violation. DLL.h: extern "C" __declspec(dllimport) int addC(int a, int b); __declspec(dllimport) int addCpp(int a, int b); DLL.cpp: #include "DLL.h" int addC(int a, int b) { return a + b; } int addCpp(int a, int b) { return a + b; } main.cpp: #include "..DLL/DLL.h" #include <stdio.h> #include <windows.h> int main() { int a = 2; int b = 1; typedef int (*PFNaddC)(int,int); typedef int (*PFNaddCpp)(int,int); HMODULE hDLL = LoadLibrary(TEXT("../Debug/DLL.dll")); if (hDLL != NULL) { PFNaddC pfnAddC = (PFNaddC)GetProcAddress(hDLL, "addC"); PFNaddCpp pfnAddCpp = (PFNaddCpp)GetProcAddress(hDLL, "addCpp"); printf("a=%d, b=%d\n", a,b); printf("pfnAddC: %d\n", pfnAddC(a,b)); printf("pfnAddCpp: %d\n", pfnAddCpp(a,b)); //EXCEPTION ON THIS LINE } getchar(); return 0; } How can I import c++ functions for dynamic loading? I have found that the following code works with implicit loading by referencing the *.lib, but I would like to learn about dynamic loading. Thank you to all in advance.

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