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• Adapter Methods in Android?

  - by Praveen Chandrasekaran

  i have go through the three methods in Adapters classes. getView() newView() bindView() what are the difference between those methods? please share some tutorial, sample code or logics to understand this. Thanks. i have to create a listview with the progressive icons. which adapter you suggest me to do that?

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• socket problem in java

  - by stefan89

  I have two classes X and Y, like this: class X implements Serializable { int val1; Y val2; } class Y implements Serializable { int val; } I want to transmit an object of type X from a client to server but i can't because the class X has a field of type Y. I replace the field of type Y with a field of type X in class X and it works.

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• Deep Copy using Reflection in an Extension Method for Silverlight?

  - by didibus

  So I'm trying to find a generic extension method that creates a deep copy of an object using reflection, that would work in Silverlight. Deep copy using serialization is not so great in Silverlight, since it runs in partial trust and the BinaryFormatter does not exist. I also know that reflection would be faster then serialization for cloning. It would be nice to have a method that works to copy public, private and protected fields, and is recursive so that it can copy objects in objects, and that would also be able to handle collections, arrays, etc. I have searched online, and can only find shallow copy implementations using reflection. I don't understand why, since you can just use MemberwiseClone, so to me, those implementations are useless. Thank You.

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• query wordpress database

  - by vick

  I have a table in the same database as my wordpress install. What is the correct way of querying it the "wordpress way" ? I know I can use mysqli and that is what I usually do. But I am sure wordpress has it's own standard and perhaps classes to do this. thanks

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• Compare class objects

  - by reto

  I have to compare a class object against a list of pre defined classes. Is it safe to use == or should I use equals()? if (klass == KlassA.class) { } else if (klass == KlassB.class) { } else if (klass == KlassC.class) { } else { } Note: I cannot use instanceof, I don't have an object, I just have the class object. I (mis)use it like an enum in this situation! Thanks!

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• Exporting Sqlite data from an Android Application

  - by meg18019

  My Android application stores all user data in a Sqlite database. What are my options to backup/export/import/copy this data? I know I can easily copy the database to the SD card. I would also like to send the data to a network server. Are there any packages/classes available to facilitate getting sqlite information to/from a network server? Thanks for the help...

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• which situation abstract class i should use

  - by Bharanikumar

  Hi , Am not worked on extream level of oops in my projects , So i have little doubts , In which situation should i use abstract method or classes , Basically i know about abstract class definition and flow, I got details from this URL Doubt is which situation should i use abstract class and methods ,

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• mvc action name in url

  - by Paul

  UPDATE: My model going into the save method is PartialViewModel, which in the save method, is pushed into the index's ContactViewModel and sent back. This wasn't clear. I am playing around with MVC3, and have a contact controller with a SaveDetails action. The index cshtml has a partial with a form whose action is pointing to this controller. When I submit the form not having completed it fully, thereby firing the validation, the url now contains the SaveDetails action name (http://localhost:7401/Contact/SaveDetails). The form code is: @using (Html.BeginForm("SaveDetails", "Contact")) { ... } The controller action looks like this: public ActionResult SaveDetails(Models.PartialsViewModel pvm) { return View("Index", new ContactViewModel{ PartialsViewModel = pvm } ); } What am I doing wrong?

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• What is the best practice for accessing Model using MVVM pattern

  - by Dzenand

  I have a database that communicates with webservices with my Model (own thread) and exposes Data Objects. My UI application consists of different Views and ViewModels and Custom Controls. I'm using ServiceProvider (IServiceProvider) to access the Model and route the events to the UI thread. Communication between the ViewModels is handeled by a Messenger. Is this way to go? I was also wondering what is the best way to strucutre the DataObjects At the moment i have the DataObjects that have a hierarchy structure but does not support INotifyProperty though the children list are of type of ObservableCollection. I have no possiblity to implement notifypropertychange on the properties. I was wondering the best way of making them MVVM friendly. Implementing a partial class and adding all the properties or commands that are necessary or wrapping all the DataObjects and keep the Model list and MVVM list in sync. All thoughts and ideas are appreciated.

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• is_admin? function in rails? - undefined method Error

  - by Newbie

  Hello! At the moment, I am creating some kind of admin panel/backend for my site. I want to do the following: Only admins (a user has a user_role(integer) -- 1 = admin, 2 = moderator, 3 = user) can see and access a link for the admin panel. So I created an admin_controller. In my admin controller I created a new function called is_admin?: class AdminController < ApplicationController def admin_panel end def is_admin? current_user.user_role == 1 end end my route looks like. map.admin_panel '/admin-panel', :controller => 'admin', :action => 'admin_panel' and in my _sidebar.html.erb (partial in applicaton.html.erb) I created the link: <%= link_to "Admin Panel", :admin_panel unless is_admin? %> Now I get an error called: undefined method `is_admin?' Where is the problem? Please help me solving this problem!

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• Passing a string when starting a class in PHP

  - by Francesc

  Hi. First I have to say: Happy Christmas to All! I'm starting learning classes in PHP. I coded that: class User { function getFbId($authtoken) { } function getFbFirstName ($authtoken) { } } What I want to do is something like that: $user=new User($authtoken); And pass the $authtoken to the class. It's possible to define that when starting the class. It's possible to retrive that value inside a function of that class?

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• Selecting all elements

  - by Eelke

  This should be really simple but I'm a javascript/jQuery rookie, so here we go: With the following code I can select a certain element var user = $(".ui-selected .user-name").html(); But if there are multiple elements with the above classes, only the first value gets selected. What I would like to accomplish is a variable with all the elements seperated by a , like: user1,user2,user3 ... etc. Any help would be greatly appreciated, thanks in advance!

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• Can I browse Mono source code in Visual Studio?

  - by Borek

  I'd like to see how some classes are implemented in Mono and would like to use code navigation features found in Visual Studio. Has anyone tried importing Mono source codes as a VS project / solution?

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• Returning a static array without using a class field

  - by Bart Friederichs

  I have the following base and derived (partial, for sake of brevity) classes: class Base { public abstract int[] someArray { get; } } class Derived : Base { private readonly static int[] _someArray = new int[] { 1,2,3,4 }; public override int[] someArray { get { return _someArray; } } } What I would like now, is put the new int[] { 1,2,3,4 } in the return part of the getter. But, that would create a new array every time the getter is called. Is it possible to directly return some kind of object, which stays the same for all objects of class Derived ? Something along the lines of (I know this is invalid C#): get { return (int[]) { 1, 2, 3, 4 }; }

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• How to group methods belong to one entity in one class file in Core Data like Linq?

  - by Siegfried

  How to group methods belong to one entity in one class file in Core Data like Linq? In Linq, we can put all methods in the domain object class and reuse them, in Core Data, is there any way to create different classes for different entities? Or we can only use predicate to retrieve?

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• Correct way to read configuration file and using configuration values

  - by Harza

  I'm reading applications .config file using .NET ConfigurationManager like it should be done, but .... Which one is most preferred option: Read config and store instance of (build in or custom) ConfigurationElement for later use Read config and store only needed values (but not instances of ConfigrationElement classes) for later use Read ConfigurationElement from config always when configuration values are needed These two things are in my mind: Performance impact in case 3 when reading config all the time Problems occuring in case 1 when using cached instances of ConfigurationElements

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• Finding an unnamed union in a struct::Haiku

  - by Freeman Lou

  So I have this assignment, and I have to find an unnamed union in struct _pthread_rwlock in pthread.h in the Haiku open source project. I began this assignment with some knowledge of c++ (past inheritance, polymorphism, and classes), but I find that what I learned do not help at all in my situation. I've opened the header file, and a source file named pthread_rwlock.cpp, and tried to look for the unnamed union, but there seems to be no unions in either file. What would be the correct way to find the problem?

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• Is there a built-in class to handle encryption in C#?

  - by badpanda

  I need to encrypt bytecode to send over a connection to a webservice, preferably using a GUID as a key. I have done a bit of research and found several classes developed for a similar purpose, but haven't been able to turn up much that is built into the Windows libraries. My question is: Is there something built in to C# that performs this task? If there is not, I would very much appreciate any suggestions as to implementation. Thanks!! badPanda

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• Where does that randomness come from ?

  - by Jules Olléon

  I'm working on a data mining research project and use code from a big svn. Apparently one of the methods I use from that svn uses randomness somewhere without asking for a seed, which makes 2 calls to my program return different results. That's annoying for what I want to do, so I'm trying to locate that "uncontrolled" randomness. Since the classes I use depend on many other, that's pretty painful to do by hand. Any idea how I could find where that randomness comes from ?

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• question about linux

  - by davit-datuashvili

  i have following question i am writting programs in linux like this from command line i do following steps touch project.java nano project.java and // code here i have questions how can i create new classes interfaces and so on?because in IDE like netbeans i can do click on projects name with right size of mouse choose create new class or interfaces and it is created but how do it in linux if i dont use IDE?

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• How to get all property names of a Groovy class?

  - by Klaim

  The title ask it all : How to get all property names of a Groovy class? Is it even possible? I thought I could use collection syntaxes with classes too be it don't seem to work.

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• Why the "Non" in "ExecuteNonQuery"?

  - by Camilo Martin

  I know this is not a hell of an useful question but I can't help being bugged by it. So, Why said method (in *Command classes) is called ExecuteNonQuery instead of ExecuteQuery? Aren't those SQL statements we throw at DBs, queries?

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• C# Linq: Can you merge DataContexts?

  - by Andreas Grech

  Say I have one database, and this database has a set of tables that are general to all Clients and some tables that are specific to certain clients. Now what I have in mind is creating a primary DataContext that includes only the tables that are general to all the clients, and then create separate DataContexts that contain only the tables that are specific to the client. Is there a way to kind of "merge" DataContexts so that it becomes one context? So for Client A, I need one DataContext that includes both the general tables and also the tables for that specific client (retrieved from two different DataContexts) ? [Update] What I think I can do is, from the Partial Class of the DataContext instead of letting my DataContext inherit from DataContext I make it inherit from MyDataContext; that way, the tables from MyDataContext and the other DataContext will be available in one DataContext class. What do you think about this approach? Of course with something like this you can only merge two datacontexts at once though...

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• MSSQL using SSH-tunnel from Visual Studio

  - by pbt

  Hi, I recently contacted a web host regarding support for external database access to a Microsoft SQL Database included in a package they offer. They replied saying that it is only possible with an SSH-tunnel. Is it possible to connect to a MS SQL database in Visual Studio using an SSH-tunnel? It is important for me to be able to access the database from my local machine (for debugging, generating LINQ classes, editing tables, etc). Or, how should I go about working with their database?

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• UploadFileAsync not asynchronous?

  - by a2h

  Aight, did a bit of Googling and searching here, the only question I found related was this, although the only answer it had wasn't marked as accepted, is old and is confusing. My problem is basically what I've said in the title. What happens is that the GUI freezes while the upload is in progress. My code: // stuff above snipped public partial class Form1 : Form { WebClient wcUploader = new WebClient(); public Form1() { InitializeComponent(); wcUploader.UploadFileCompleted += new UploadFileCompletedEventHandler(UploadFileCompletedCallback); wcUploader.UploadProgressChanged += new UploadProgressChangedEventHandler(UploadProgressCallback); } private void button1_Click(object sender, EventArgs e) { if (openFileDialog1.ShowDialog() == DialogResult.OK) { string toUpload = openFileDialog1.FileName; wcUploader.UploadFileAsync(new Uri("http://anyhub.net/api/upload"), "POST", toUpload); } } void UploadFileCompletedCallback(object sender, UploadFileCompletedEventArgs e) { textBox1.Text = System.Text.Encoding.UTF8.GetString(e.Result); } void UploadProgressCallback(object sender, UploadProgressChangedEventArgs e) { textBox1.Text = (string)e.UserState + "\n\n" + "Uploaded " + e.BytesSent + "/" + e.TotalBytesToSend + "b (" + e.ProgressPercentage + "%)"; } }

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