Search Results

Search found 94414 results on 3777 pages for 'new language'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 705/3777 | < Previous Page | 701 702 703 704 705 706 707 708 709 710 711 712  | Next Page >

  • Controller path for nested resource - undefined method `<controller>_path'

    - by owilde1900
    I'm having trouble displaying my form at /users/2/friends/new. I'm receiving undefined method `friends_path' for #<#<Class:0x21f0c14>:0x21ef364> Here is the beginning of the form <% form_for(@friend) do |f| %> And the friends controller def new @user = User.find(params[:user_id]) @friend = @user.friends.build end This is the route resources :users do resources :friends end And the relevant path from "rake routes" users/:user_id/friends/new(.:format) {:controller=>"friends", :action=>"new"} Any help or insight is greatly appreciated. This is my first rails 3 app.

    Read the article

  • Is it easier to create a chat client using java or PHP?

    - by Mendy
    first off, my goal: Create a chat client that requires the user to log in with a password. Would it be easier to create it with just HTML an PHP or java? EDIT: Sorry, I didn't mention. I have some experience in javascript. I'm afraid that is all. I could and would learn another language. So I want to know which language would be better to learn for this project? also, for the username and password login I'm guessing I would need some mySQL knowledge? Thanks.

    Read the article

  • Java variables across methods

    - by NardCake
    I'm making a basic text editor, and I have 2 methods the first one is triggered when a user click 'Open' and it prompts the user to pick a file and it opens the file fine. I just want to access the same file path which is in a variable in the method that is triggered when the user clicks save. My methods are public, Iv'e tried accessing it through a class, still no. Please help! Code: public void open(){ try{ //Open file JFileChooser fc = new JFileChooser(); fc.showOpenDialog(null); File file = fc.getSelectedFile(); String haha = file.getPath(); BufferedReader br = new BufferedReader(new FileReader(file.getPath())); String line; while((line = br.readLine()) != null){ text.append(line + "\n"); } } catch (FileNotFoundException e){ e.printStackTrace(); }catch (IOException e){ } } public void save(){ try { BufferedWriter bw = new BufferedWriter(new FileWriter(file.filePath)); bw.write(text.getText()); bw.close(); } catch (IOException e) { e.printStackTrace(); } }

    Read the article

  • How to copy items from a dropdownbox to another [C#]

    - by LuRsT
    How can I copy items hardcoded from one dropdown box to another keeping the keys and values? drpTypes.Items.Add(new ListItem("Tipos de Acções", "1")); drpTypes.Items.Add(new ListItem("Tipos de Combustível", "2")); drpTypes.Items.Add(new ListItem("Tipos de Condutor", "3")); drpTypesCreateEdit.Items.AddRange(drpTypes.Items);

    Read the article

  • XNA 4.0 draw a cube with DrawUserIndexedPrimitives method [on hold]

    - by Leggy7
    EDIT Since I read what Mark H suggested (thanks a lot, I found it very useful) I think my question can become clearer structured this way: Using XNA 4.0, I'm trying to draw a cube. Im using this method: GraphicsDevice.DrawUserIndexedPrimitives<VertexPositionColor>( PrimitiveType.LineList, primitiveList, 0, // vertex buffer offset to add to each element of the index buffer 8, // number of vertices in pointList lineListIndices, // the index buffer 0, // first index element to read 7 // number of primitives to draw ); I got the code sample from this page which simply draw a serie of triangles. I want to modify this code in order to draw a cube. I was able to slitghly move the camera so I can have the perception of solidity, I set the vertex array to contain the 8 points defining a cube. But I can't fully understand how many primitives I have to draw (last parameter) for each of PrimitiveType. So, I wasn't able to draw the cube (just some of the edges in a non-defined order). More in detail: to build the vertex index list, the sample used // Initialize an array of indices of type short. lineListIndices = new short[(points * 2) - 2]; // Populate the array with references to indices in the vertex buffer for (int i = 0; i < points - 1; i++) { lineListIndices[i * 2] = (short)(i); lineListIndices[(i * 2) + 1] = (short)(i + 1); } I'm ashamed to say I cannot do the same in the case of a cube. what has to be the size of the lineListIndices? how should I populate it? In which order? And how do these things change when I use a different PrimitiveType? In the code sample there are also another couple of calls which I cannot fully understand, which are: // Initialize the vertex buffer, allocating memory for each vertex. vertexBuffer = new VertexBuffer(graphics.GraphicsDevice, vertexDeclaration, points, BufferUsage.None); // Set the vertex buffer data to the array of vertices. vertexBuffer.SetData<VertexPositionColor>(pointList); and vertexDeclaration = new VertexDeclaration(new VertexElement[] { new VertexElement(0, VertexElementFormat.Vector3, VertexElementUsage.Position, 0), new VertexElement(12, VertexElementFormat.Color, VertexElementUsage.Color, 0) } ); that is, for VertexBuffer and VertexDeclaration I could not find and significant (monkey-like) guide. I reported them too because I think they could be involded in understanding things. I think I also have to understand something related to the order the vertexes are stored in the array. But actually I have no clue of what I should learn to have this function drawing a cube. So, if anybody could point me to the right direction, it wil be appreciated. Hope to have made myself clear this time

    Read the article

  • WPF + MvvM + Prism

    - by 2Fast4YouBR
    Hi all, I am new in the Wpf & Mvvm world , but I have found a couple of examples and just found that there is some different way to instantiate the model. I would like to know the best/correct way to do it. both ways are using Unity What I've foud: var navigatorView = new MainView(); navigatorView.DataContext = m_Container.Resolve<INavigatorViewModel>(); m_RegionManager.Regions["NavigatorRegion"].Add(navigatorView); What I did: var navigatorView = m_Container.Resolve<MainView>; m_RegionManager.Regions["NavigatorRegion"].Add(navigatorView); and I changed the constructor to receive viewmodel so I can point the datacontext to it: public MainView(NavigatorViewModel navigatorViewModel) { this.DataContext = navigatorViewModel; } Other examples I've found another way like: ...vm = new viewmodel ...m = new model v.model = vm; get/set DataContext cheers

    Read the article

  • Generic arrays of parametrized ArrayLists in java?

    - by athena123
    I am new to Java, so I am not aware of the nitty gritties. Why can't I create generic array of parametrized ArrayList? Instead I have to write, ArrayList<String>[] alist = new ArrayList[10]; or I have to create List of ArrayLists. Aren't arrays supposed to be more efficient than ArrayLists? Then why doesn't Java allow it? Also, what is the difference between following two lines. ArrayList<String>[] alist = new ArrayList[10]; ArrayList<String>[] alist = new ArrayList<?>[10];

    Read the article

  • git destroyed my changes

    - by mare
    I made a commit of my repository a week ago but never actually pushed it to the remote at github, which I did today. However, in the time from my commit I made many changes to the source. But just the initial commit was pushed to remote and while doing it, it also overwrote my local files. What can I do to get back my current files?? For better understanding, this is what I've done: Created new VS project and created a new git repository in it, Performed an initial scan, stage and commit but without adding a remote and performing a push, Worked on files for a week, (Today) Forgot to perform rescan, new stage and commit and just created new GitHub repository and performed this: git remote add origin [email protected]:myaccount/webshop.git git push origin master Now the files in GitHub repository are the ones from inital commit and those were also copied over my current files, so I'm in the initial commit stage now locally too, which is awful. Help appreciated

    Read the article

  • JQuery or Javascript solution for selecting default value in drop down

    - by user1446843
    I have a calender list in a webpart page, this webpart page has a version number in it's title e.g. "WebPart 1.62". What I need to do is when a New item is created in the calender list on a webpart page, the New Item form has a dropdown menu 'SystemID' which gets it's values from the title column of a 'Systems' list, which is pre-populated with all versions of webpart forms. This dropdown menu 'SystemID' should select the version of the webpart page it is in as the default value. I need a JQuery solution for this, or even Javascript. I am finding it difficult as I am new to both JQuery and Sharepoint. I am using SP2007. I'll appreciate any guidance in solving this. At the moment the Create New Item form of the Calender list has the 'SystemID' drop down list pre-populated with the versions from the Systems list. If anyhthing is unclear pls let me know and I'll explain in more detail.

    Read the article

  • checkbox dynamic create for jquery

    - by user1397840
    How do i create multiple checkbox for jquery to identify it? example i have a html page with this is call new.html <div id =new> <input type=checkbox"></div> at create.html i want to use jquery to load multiple checkbox <div id=load> <div> $("#load).load(new.html) so if i use a for loop to loop 10times to create 10 checkbox, how do i identify each checkbox uniquely? for(var i = 0;i<10;i++){ $("#load).load(new.html)}

    Read the article

  • How the clients (client sockets) are identified?

    - by Roman
    To my understanding by serverSocket = new ServerSocket(portNumber) we create an object which potentially can "listen" to the indicated port. By clientSocket = serverSocket.accept() we force the server socket to "listen" to its port and to "accept" a connection from any client which tries to connect to the server through the port associated with the server. When I say "client tries to connect to the server" I mean that client program executes "nameSocket = new Socket(serverIP,serverPort)". If client is trying to connect to the server, the server "accepts" this client (i.e. creates a "client socket" associated with this client). If a new client tries to connect to the server, the server creates another client socket (associated with the new client). But how the server knows if it is a "new" client or an "old" one which has already its socket? Or, in other words, how the clients are identified? By their IP? By their IP and port? By some "signatures"? What happens if an "old" client tries to use Socket(serverIP,serverIP) again? Will server create the second socket associated with this client?

    Read the article

  • Adding an Element to an Array

    - by coffeeaddict
    Ok, I cannot get this. I've looked at it and I don't see why it's out of bounds. I get the error at paypalItems[paypalItems.Length] = new PaymentDetailsItemType PaymentDetailsItemType[] paypalItems = new PaymentDetailsItemType[order.OrderItems.Count]; for (int i = 0; i < order.OrderItems.Count; i++) { paypalItems[i] = new PaymentDetailsItemType { Name = order.OrderItems[i].Name, Amount = ApiUtility.CreateBasicAmount(order.OrderItems[i].Price), Description = order.OrderItems[i].Name, Number = order.OrderItems[i].Sku, }; } if (giftCardsTotal != 0) { // add Coupons & Discounts line item paypalItems[paypalItems.Length] = new PaymentDetailsItemType { Name = "Gift Cards", Amount = ApiUtility.CreateBasicAmount(giftCardsTotal), Description = "Gift Cards" }; }

    Read the article

  • Call subclass constructor from abstract class in Java

    - by Joel
    public abstract class Parent { private Parent peer; public Parent() { peer = new ??????("to call overloaded constructor"); } public Parent(String someString) { } } public class Child1 extends parent { } public class Child2 extends parent { } When I construct an instance of Child1, I want a "peer" to automatically be constructed which is also of type Child1, and be stored in the peer property. Likewise for Child2, with a peer of type Child2. The problem is, on the assignment of the peer property in the parent class. I can't construct a new Child class by calling new Child1() because then it wouldn't work for Child2. How can I do this? Is there a keyword that I can use that would refer to the child class? Something like new self()?

    Read the article

  • Is there a (C#) library that will create feeds for Amazon Marketplace Web Services?

    - by Josh Kodroff
    Does anyone know of a library out there (preferably in C#) that will take classes and generate XML or flat files suitable for feeds to Amazon Marketplace Web Services? In other words, I'd like to do something like this: var feed = new AmazonProductFeed(); var list = new AmazonProductList(); var product1 = new AmazonProduct(); product1.Name = "Product 1"; list.Add(product1); var product2 = new AmazonProduct(); product2.Name = "Product 2"; list.Add(product2); feed.Products = list; // spits out XML compliant with Amazon's schema Console.Write(feed.ToXml()); It looks like the only code Amazon provides are wrappers for the web service itself and the directory-based transport utility (AMTU).

    Read the article

  • Starting a seperate process

    - by jacquesb
    I want a script to start a new process, such that the new process continues running after the initial script exits. I expected that I could use multiprocessing.Process to start a new process, and set daemon=True so that the main script may exit while the created process continues running. But it seems that the second process is silently terminated when the main script exits. Is this expected behavior, or am I doing something wrong?

    Read the article

  • Javascript Image object without instantiating

    - by user276027
    This question is about javascript performance. Consider 3 examples for illustration: function loadImgA() { new Image().src="http://example.com/image.gif" } function loadImgA1() { Image().src="http://example.com/image.gif" } function loadImgB() { var testImg = new Image(); testImg.src="http://example.com/image.gif" } Now the point is I don't really need to manipulate the the image object after it was created, hence loadImgA(). The question is, what happens if nothing is assigned to the return value of the new Image() constructor - in that case I can actually skip the 'new' keyword as in loadImgA1()? Does the object then live outside the function or somehow affects memory usage? Other implications, differences? I reckon not, as no real instance was actually created? To put this into perspective, I only need to get the http request for image through. No preloading or other advanced image manipulation. What would be the preferred method from the above?

    Read the article

  • Help regarding android 1.5 and 2.1 (beginner, issue of Book Version)

    - by piemesons
    I am new to android and last year i bought two books of android 1.5. But at that time i was busy in my project so was not able to work on android. Now i want to start android again. Should i go for those books or should i buy new editions Is there any major change regarding basic learnings? Two books i am having are:- Pragmatic Hello Android (New addition of this book is available, But still in beta phase) Apress begining Android (Dont know about this whether new edition is available or not) Please let me know. Thanks EDIT here i am not asking about the good books of android, as there are lot of questions regarding that. I can find out from them. My question is purely related to change in version

    Read the article

  • Linq - Grouping where items fall in multiple groups?

    - by PirateKitten
    Is it possible using Linq to create a group where items fall into more than one group? Using the following trivial example: public class Data { public string ID; public int From; public int To; } And this list: List<Data> data = new List<Data>() { new Data() { ID = "A", From = 1, To = 3 }, // Call this A new Data() { ID = "B", From = 1, To = 2 }, // Call this B new Data() { ID = "C", From = 2, To = 3 } // Call this C }; I'd like to group by each possible integer in the ranges From and To (though instead of finding the min + max I could supply the query with the range I want, for example 1 to 3), and in each group would be a reference to the Data instance where the grouping int fits in its range. Hard to explain, easier to show each group and the instances I'd expect in each: [Group 1] 1 - A, B [Group 2] 2 - A, B, C [Group 3] 3 - A, C Is this possible? Or must groups be mutually exclusive?

    Read the article

  • Rails form not creating object

    - by user2136807
    I have created a simple form to create an instance of a modle and for some reason it is not calling the create method in the controller. Here is the form code: <% @house.mates.each do |mate| %> <p><%= mate.name %></p> <% end %> <h2>Add a new mate:</h2> <%= form_for @mate do |f| %> <p><%= f.label "Name" %> <%= f.text_field :name %> <%= f.hidden_field :house_id %> </p> <%= f.submit "Submit", :action => :create %> <% end %> Here is the controller code: class MatesController < ApplicationController def new @mate = Mate.new end def create @mate = Mate.new(params[:mate]) @mate.save redirect_to house_path(current_house) end end There is a many to one relationship between the Mate model and the House model... I am fairly new to rails but I have made other apps with similar forms, and I have never had this problem before. I can create and save Mate objects in the console, and I am not getting any errors, so it seem that somehow the controller method is not being called. Any help is much appreciated!

    Read the article

  • Accessing variables in other classes (Java)

    - by George
    Why doesn't the following program return 0, since I am accessing p from a new A(), which has not had main called on it? public class A { public int p = 0; public static void main(String[] args) { p = Integer.parseInt(args[0]); new B().go(); } } class B { public void go() { System.out.println(new A().p); } }

    Read the article

  • Convert list to double[][] in C#3.0

    - by Newbie
    Given List<double> x1 = new List<double> { -0.2718, -0.2240, -0.1275, -0.0810, 0.0349, -0.5067, 0.0094, -0.4404, -0.1212 }; List<double> x2 = new List<double> { 0.0330, -0.6463, 0.1226, -0.3304, 0.4764, -0.4159, 0.4209, -0.4070, -0.2090 }; How can I make as double[][] X at runtime(programatically). I mean to say if the output I get if I run double[][] X = { new double[] { -0.2718, -0.2240, -0.1275, -0.0810, 0.0349, -0.5067, 0.0094, -0.4404, -0.1212 }, new double[] { 0.0330, -0.6463, 0.1226, -0.3304, 0.4764, -0.4159, 0.4209, -0.4070, -0.2090 } }; Using C#3.0 Thanks

    Read the article

  • So my girlfriend wants to learn to program [closed]

    - by vanstee
    Possible Duplicate: What programming language should be taught in Computer Science 101? My girlfriend hates feeling completely out of the loop when my friends and I talk about anything related to computers, so she asked me to teach her how to program. I'm pretty happy she asked, but I want to be able to teach her enough to know the basics without her completely losing interest or getting too frustrated. She is a very smart girl, probably smarter than me, but her computer related skills are pretty minimal. What language should I teach her and why?

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 701 702 703 704 705 706 707 708 709 710 711 712  | Next Page >