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  • Creating multiple objects of a view defined in the xml

    - by user362953
    I have to dynamically add a list of views (the views use RelativeLayout). Can I do this by specifying the view definition in xml and instantiate multiple objects off it? This gives the usual benefits of separating the view part from the code (for e.g., making it easy for the UI guys to alter things) or Is going the ArrayAdapter the suggested/only route?

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  • SQL Oracle Combining Multiple Results Rows

    - by Stuav
    I have the below query Select case upper(device_model) when 'IPHONE' then 'iOS - iPhone' when 'IPAD' then 'iOS - iPad' when 'IPOD TOUCH' then 'iOS - iPod Touch' Else 'Android' End As Device_Model, count(create_dtime) as Installs_Oct17_Oct30 From Player Where Create_Dtime >= To_Date('2012-Oct-17','yyyy-mon-dd') And Create_Dtime <= To_Date('2012-Oct-30','yyyy-mon-dd') Group By Device_Model Order By Device_Model This spits out multiple rows of results that read "Android"....I would like there to be only 4 results rows, one for each case....so it comes out like this: Device_Model Installs_Oct17_Oct30 Android 987 iOS - iPad 12003 iOS - iPhone 8563 iOS- iPod Touch 3482

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  • Most effective way working with multiple languages

    - by Industrial
    Hi! I am currently working with a codeigniter PHP based application and have come to the point where it's about to go off with multiple languages. Is codeigniters own language class the most effective way to handle languages? Is there any specific language-tools/libraries that are commonly used in PHP apps? Thanks!

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  • jquery .live() click multiple times

    - by user355227
    Hi, I am trying to make a script that updates the captcha image, that is loaded through live() function... It works, but it only updates the image 1 time on firefox, 2 times on safari... How can I make this to work multiple times? jquery 1.4.2 relevant part of code: /* captcha image change */ var rand = Math.random(); $('a.captcha_refresh').live('click', function() { $('img.captcha').attr("src", 'captchashow.php?sid=' + rand); }); thanks, brm

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  • multiple figure in latex with captions.

    - by asd
    Hi, How can I insert multiple figures each of them has a caption and label, without using minipage. I wrote this code, but just there is one caption :( \begin{figure}[htp] \centering \label{figur}\caption{equation...} \begin{tabular}{cc} % Requires \usepackage{graphicx} \includegraphics[width=60mm]{explicit3185.eps}& \includegraphics[width=60mm]{explicit3183.eps}\\ \includegraphics[width=60mm]{explicit1501.eps}& \includegraphics[width=60mm]{explicit23185.eps}\\ \includegraphics[width=60mm]{explicit23183.eps}& \includegraphics[width=60mm]{explicit21501.eps}\\ \end{tabular} \end{figure}

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  • SELECT DISTINCT multiple field search?

    - by Patrick
    I'm trying to search multiple fields zc_city and zc_zip for when user input and then return row results for zc_city zc_state and zc_zip $q = strtolower($_GET["q"]); if (!$q) return; $sql = "SELECT DISTINCT zc_city AS zcity FROM search_zipcodes WHERE zc_city LIKE '$q%'"; $rsd = mysql_query($sql); while($rs = mysql_fetch_array($rsd)) { $zcity = $rs['zcity']; echo "$zcity\n"; }

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  • GridView with multiple DataSources

    - by mike1973
    Hello, I have a grid view that will display columns from multiple data sources (3). The data sources are stored procedures that contains a variety of columns not identical, How can i select the columns from these datasources and bind them to the Grid programtically (from code behind)??? Thanks

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  • Changes to multiple entities within a single transaction

    - by Nati
    Hy, I am trying to make changes to multiple entities within a single transaction in app engine platform. As I understand in order to succeed doing so, App Engine needs to know in advance which entities will be updated together, so it knows to store them in a way that supports transactions. And therefore, user must declare that an entity belongs to the same entity group as another entity when you create the entity. How do I declare that one entity belongs to another entity group in creation time? Thanks, Nati

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  • Multiple reference in SQL

    - by AGarofoli
    Hi! I'm working on a db but i'm kinda new to this so i've bumped into a problem today. I've got some tables: OFFICE, ROOM, EMPLOYEE and DOCUMENT. Document must specify the sender, which can be a single employee, an entire room or an entire office so it must have a reference to the primary keys of those tables. Should I do a "parallel" table for handle it (for example i've done one for handle the multiple recipients documents) or there is another way? Thank you

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  • How can I have multiple browsing sessions in Google Chrome?

    - by daviesgeek
    I often need multiple browsing sessions for logging into multiple services with different accounts at one time. I don't want to have to use multiple browsers, nor do I want to use a different release of Google Chrome. I would be open to running multiple instances of Google Chrome. However, I've tried using open -na Google\ Chrome and it won't open a second instance. Is there a way to do this on a Mac with Google Chrome?

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  • EF4 and multiple abstract levels

    - by Cedric
    I need to use inheritance with EF4 and the TPH model created from DB. I created a new projet to test simples classes. There is my class model: There is my table in SQL SERVER 2008 : VEHICLE ID : int PK Owner : varchar(50) Consumption : float FirstCirculationDate : date Type : varchar(50) Discriminator : varchar(10) I added a condition in my EDMX on the Discriminator field to differentiate the Scooter, Car, Motorbike and Bike entities. MotorizedVehicle and Vehicle are Abstract. But when I compile, this error appears : Error 3032: Problem in mapping fragments starting at lines 78, 85:EntityTypes EF4InheritanceModel.Scooter, EF4InheritanceModel.Motorbike, EF4InheritanceModel.Car, EF4InheritanceModel.Bike are being mapped to the same rows in table Vehicle. Mapping conditions can be used to distinguish the rows that these types are mapped to. Edit : To Ladislav : I try it and error change to become it for all of my entities : Error 3034: Problem in mapping fragments starting at lines 72, 86:An entity is mapped to different rows within the same table. Ensure these two mapping fragments do not map two groups of entities with overlapping keys to two distinct groups of rows. To Henk (with Ladislay suggestion) : There are all of mappings details : What's wrong ? Thanks

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  • C# WinForms. Multiple Forms in separate threads

    - by Calum Murray
    I'm trying to run an ATM Simulation in C# with Windows Forms that can have more than one instance of an ATM machine transacting with a bank account simultaneously. The idea is to use semaphores/locking to block critical code that may lead to race conditions. My question is this: How can I run two Forms simultaneously on separate threads? In particular, how does all of this fit in with the Application.Run() that's already there? Here's my main class: public class Bank { private Account[] ac = new Account[3]; private ATM atm; public Bank() { ac[0] = new Account(300, 1111, 111111); ac[1] = new Account(750, 2222, 222222); ac[2] = new Account(3000, 3333, 333333); Application.Run(new ATM(ac)); } static void Main(string[] args) { new Bank(); } } ...that I want to run two of these forms on separate threads... public partial class ATM : Form { //local reference to the array of accounts private Account[] ac; //this is a reference to the account that is being used private Account activeAccount = null; private static int stepCount = 0; private string buffer = ""; // the ATM constructor takes an array of account objects as a reference public ATM(Account[] ac) { InitializeComponent(); //Sets up Form ATM GUI in ATM.Designer.cs this.ac = ac; } ... I've tried using Thread ATM2 = new Thread(new ThreadStart(/*What goes in here?*/)); But what method do I put in the ThreadStart constructor, since the ATM form is event-driven and there's no one method controlling it? Thanks, Calum

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  • Performance of Multiple Joins

    - by geeko
    Greetings Overflowers, I need to query against objects with many/complex spacial conditions. In relational databases that is translated to many joins (possibly 10+). I'm new to this business and wondering whether to go with MS SQL Server 2008 R2 or Oracle 11g or document-based solutions such as RavenDB or simply go with some spacial database (GIS)... Any thoughts ? Regards UPDATE: Thank you all for your answers. Would anybody opt for document/spatial databases ? My database would consist of tens of millions to few billion records. Mostly read-only. Almost no updates unless in case of mistakes in input. Overnight inserts and not that frequent. The join tables are predicted beforehand but the number of self joins (tables joining themselves multiple times) is not. Small pages of results from such queries are going to be viewed on an highly interactive website so response time is critical. Any predictions on how this can perform on MS SQL Server 2008 R2 or Oracle 11g ? I'm also concerned about boosting performance by adding more servers, which one scales better ? How about PostgresQL ?

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  • Ruby-on-Rails: Multiple has_many :through possible?

    - by williamjones
    Is it possible to have multiple has_many :through relationships that pass through each other in Rails? I received the suggestion to do so as a solution for another question I posted, but have been unable to get it to work. Friends are a cyclic association through a join table. The goal is to create a has_many :through for friends_comments, so I can take a User and do something like user.friends_comments to get all comments made by his friends in a single query. class User has_many :friendships has_many :friends, :through => :friendships, :conditions => "status = #{Friendship::FULL}" has_many :comments has_many :friends_comments, :through => :friends, :source => :comments end class Friendship < ActiveRecord::Base belongs_to :user belongs_to :friend, :class_name => "User", :foreign_key => "friend_id" end This looks great, and makes sense, but isn't working for me. This is the error I'm getting in relevant part when I try to access a user's friends_comments: ERROR: column users.user_id does not exist : SELECT "comments".* FROM "comments" INNER JOIN "users" ON "comments".user_id = "users".id WHERE (("users".user_id = 1) AND ((status = 2))) When I just enter user.friends, which works, this is the query it executes: : SELECT "users".* FROM "users" INNER JOIN "friendships" ON "users".id = "friendships".friend_id WHERE (("friendships".user_id = 1) AND ((status = 2))) So it seems like it's entirely forgetting about the original has_many through friendship relationship, and then is inappropriately trying to use the User class as a join table. Am I doing something wrong, or is this simply not possible?

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  • How to order search results by multiple fields?

    - by JustinRoR
    I am using Sunspot and Will_paginate for search in my application and don't how to have my search results start out with certain ordering conditions. The model I am searching is the UserPrice model and want my :price and :purchase_date in descending order or lowest price to highest and present date to past: class UserPrice < ActiveRecord::Base attr_accessible :price, :product_name, :purchase_date belongs_to :product # Sunspot configuration searchable do text :product_name do product.name end end end class SearchController < ApplicationController def index @search = UserPrice.search do fulltext params[:search] paginate(:per_page => 5, :page => params[:page]) end @user_prices = @search.results end end Even though I don't know how, I'm not sure if I would use Sunspot or Will_paginate to sort by order of price and purchase date. How would I achieve this though? Thank you. UPDATE I try to use the order_by method but not sure how the model would look now. class SearchController < ApplicationController def index @search = UserPrice.search do fulltext params[:search] paginate(:per_page => 5, :page => params[:page]) facet(:business_retail_store_id) facet(:business_online_store_id) order_by :price, :desc order_by :purchase_date, :desc end @user_prices = @search.results end end Not sure why having the following in my controller: order_by :price, :desc order_by :purchase_date, :desc I get the error: Sunspot::UnrecognizedFieldError in SearchController#index No field configured for UserPrice with name 'price' This doesn't make sense to me since I do have these fields inside of my UserPrice model and in my database. How do I fix this?

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  • Rails - Searching multiple textboxes and fields

    - by ChrisWesAllen
    I have a model of events that has various information such as date, location, and description of whats going on. I would like for my users to be able to search through the events list through a set of different textboxes but I having a hard time getting the syntax just right in my view I have... <% form_tag users_path, :method => 'get' do %> (<%= text_field_tag :search_keyword, params[:search_keyword] %>) + (<%= text_field_tag :search_zip, params[:search_zip] %>) <%= submit_tag "Find Events!", :name => nil %> <% end %> and in the controller I'm trying to query through the results.... if params[:search_keyword] @events = Event.find(:all, :conditions => [' name LIKE ? ', "%#{params[:search_keyword]}%"]) elsif params[:search_zip] @events = Event.find(:all, :origin=> params[:search_zip], :within=>50 ) else @events = Event.find(:all) end How do I code it so that it will perform the search only if the textbox isnt empty? also if both textboxes are filled then @events should be the product of BOTH queries? if have no idea if this would work =(???@event = @event+ event.find.....???

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  • Simplemodal: four times on a page leads to extra "next" or "previous" button

    - by DDF
    We are experiencing a problem with each instance of the call to the simplemodal div class .basic-modal-content adding an extra next or previous button in the modal windows. We are using simplemodal in four places on a page using a common JS in the container (provided below) and a common CSS format for the modal windows. In one area we are using six "statements" in a window with a next and previous button. I would include a picture of the modal window but it's being disallowed by the system as I'm a first time poster to this forum. In the other three areas we are using three "biographies" in a similar window with the ability to see each of the three bios from each of modal windows. We are using a common Simplemodal JS script in the page which has the following code: <script> $(function() { $('a').each(function() { $(this).click(function() { $('#modal_' + this.id).modal({ overlayClose:true }); }); }); var num_divs = $('div.basic-modal-content').length; $('div.basic-modal-content').each(function(i) { /* if there is a previous div add a link to it */ if (i > 0) { /* get the ID for previous div */ var prev_id = $(this).prev('.basic-modal-content').attr('id'); /* add the link with click event */ $('<a href="#" class="simplemodal-container-prev"></a>') .click(function() { $.modal.close(); $('#' + prev_id).modal({overlayClose:true}); }) .appendTo($(this)); } /* if there is a next div add a link to it */ if (i < num_divs - 1) { /* get the ID for next div */ var next_id = $(this).next('.basic-modal-content').attr('id'); /* add the link with click event */ $('<a href="#" class="simplemodal-container-next"></a>') .click(function() { $.modal.close(); $('#' + next_id).modal({overlayClose:true}); }) .appendTo($(this)); } }); }); </script> and some CSS to create an image for each window that shows the progress bar through the ul/li list. The code to produce the above looks like this: <h1>Our HEADLINE</h1> <div id='basic-modal'> <ul> <li><a href='#' id='one'>TEXT 1</a></li> <li><a href='#' id='two'>TEXT 2</a></li> <li><a href='#' id='three'>TEXT 3</a></li> <li><a href='#' id='four'>TEXT 4</a></li> <li><a href='#' id='five'>TEXT 5</a></li> <li><a href='#' id='six'>TEXT 6</a></li> </ul> </div> <div class="basic-modal-content" id="modal_one"> <img src="link to modal_one.png" alt="progress bar"/> <h3>headline text</h3> <p>body text</p> </div> <div class="basic-modal-content" id="modal_two"> <img src="link to modal_two.png" alt="progress bar"/> <h3>headline text</h3> <p>body text</p> </div> <div> ... other divs 3 4 and 5 </div> <div class="basic-modal-content" id="modal_six"> <img src="link to modal_six.png" alt="progress bar"/> <h3>headline text</h3> <p>body text</p> </div> </div> The ul/li structure works on the main page for the links. The modal windows allow one to browse through all of the six TEXTs. There is a common CSS style to the windows and a custom image in each of the modal windows derived from the "#modal_[number] img" CSS in the form of a progress bar. It should be noted that the first modal window in the first set of ul/li (the six) do not exhibit the extra previous button. Here is the relevant code from one of the three biographic links. You will note that the biographic links each have to have all three in this current configuration. <h4>Our HEADLINE</h4> <div class="bottom-widget-text"> <img src="picture" alt="not relevant to the simplemodal problem"/> <p>Read about person NUMBER 1 by clicking on the following link: <a href='#' id='seven' >Expand</a> </p> </div> <div class="basic-modal-content" id="modal_seven"> <img src="link to modal_seven.png" alt="portrait 1"/> <h3>headline text</h3> <p>BIOGRAPHY</p> </div> <div class="basic-modal-content" id="modal_eight"> <img src="link to modal_eight.png" alt="portrait 2"/> <h3>headline text</h3> <p>BIOGRAPHY</p> </div> <div class="basic-modal-content" id="modal_nine"> <img src="link to modal_nine.png" alt="portrait 3"/> <h3>headline text</h3> <p>BIOGRAPHY</p> </div> </div> Similarly the "biographies" open up from a different area of the page. The modal windows allow one to browse through all three of the BIOs. The bios use the SAME CSS style windows and a custom image in each of the modal windows derived from the "#modal_[number] img" CSS in the form of a portrait. Everything is working well except one thing: the first six windows have an extra next button that leads to an image of the close widow button only. Similarly, the BIOs pages have extra previous button that leads to the same "close button only" shown above. We want to maintain the same base CSS for the modal windows for this page. We want to keep the JS simple. The only behavior that is bad is the extra previous and next bottons that appear to be spurious. So is this a fix to the JS? Or do I have the instances of the modal windows too entangled? Perhaps there is a better method for having multiple instances of a simplemodal window on the same page? Or is the problem the "#" variable being common to each of the uses of the JS? Thanks in advance. DDF

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  • use svcutil to map multiple namespaces for generating wcf service proxies

    - by Pratik
    I want to use svcutil to map multiple wsdl namespace to clr namespace when generating service proxies. I use strong versioning of namespaces and hence the generated clr namespaces are awkward and may mean many client side code changes if the wsdl/xsd namespace version changes. A code example would be better to show what I want. // Service code namespace TestService.StoreService { [DataContract(Namespace = "http://mydomain.com/xsd/Model/Store/2009/07/01")] public class Address { [DataMember(IsRequired = true, Order = 0)] public string street { get; set; } } [ServiceContract(Namespace = "http://mydomain.com/wsdl/StoreService-v1.0")] public interface IStoreService { [OperationContract] List<Customer> GetAllCustomersForStore(int storeId); [OperationContract] Address GetStoreAddress(int storeId); } public class StoreService : IStoreService { public List<Customer> GetAllCustomersForStore(int storeId) { throw new NotImplementedException(); } public Address GetStoreAddress(int storeId) { throw new NotImplementedException(); } } } namespace TestService.CustomerService { [DataContract(Namespace = "http://mydomain.com/xsd/Model/Customer/2009/07/01")] public class Address { [DataMember(IsRequired = true, Order = 0)] public string city { get; set; } } [ServiceContract(Namespace = "http://mydomain.com/wsdl/CustomerService-v1.0")] public interface ICustomerService { [OperationContract] Customer GetCustomer(int customerId); [OperationContract] Address GetStoreAddress(int customerId); } public class CustomerService : ICustomerService { public Customer GetCustomer(int customerId) { throw new NotImplementedException(); } public Address GetStoreAddress(int customerId) { throw new NotImplementedException(); } } } namespace TestService.Shared { [DataContract(Namespace = "http://mydomain.com/xsd/Model/Shared/2009/07/01")] public class Customer { [DataMember(IsRequired = true, Order = 0)] public int CustomerId { get; set; } [DataMember(IsRequired = true, Order = 1)] public string FirstName { get; set; } } } 1. svcutil - without namespace mapping svcutil.exe /t:metadata TestSvcUtil\bin\debug\TestService.CustomerService.dll TestSvcUtil\bin\debug\TestService.StoreService.dll svcutil.exe /t:code *.wsdl *.xsd /o:TestClient\WebServiceProxy.cs The generated proxy looks like namespace mydomain.com.xsd.Model.Shared._2009._07._011 { public partial class Customer{} } namespace mydomain.com.xsd.Model.Customer._2009._07._011 { public partial class Address{} } namespace mydomain.com.xsd.Model.Store._2009._07._011 { public partial class Address{} } The client classes are out of any namespaces. Any change to xsd namespace would imply changing all using statements in my client code all build will break. 2. svcutil - with wildcard namespace mapping svcutil.exe /t:metadata TestSvcUtil\bin\debug\TestService.CustomerService.dll TestSvcUtil\bin\debug\TestService.StoreService.dll svcutil.exe /t:code *.wsdl *.xsd /n:*,MyDomain.ServiceProxy /o:TestClient\WebServicesProxy2.cs The generated proxy looks like namespace MyDomain.ServiceProxy { public partial class Customer{} public partial class Address{} public partial class Address1{} public partial class CustomerServiceClient{} public partial class StoreServiceClient{} } Notice that svcutil has automatically changed one of the Address class to Address1. I don't like this. All client classes are also inside the same namespace. What I want Something like this: svcutil.exe /t:code *.wsdl *.xsd /n:"http://mydomain.com/xsd/Model/Shared/2009/07/01, MyDomain.Model.Shared;http://mydomain.com/xsd/Model/Customer/2009/07/01, MyDomain.Model.Customer;http://mydomain.com/wsdl/CustomerService-v1.0, MyDomain.CustomerServiceProxy;http://mydomain.com/xsd/Model/Store/2009/07/01, MyDomain.Model.Store;http://mydomain.com/wsdl/StoreService-v1.0, MyDomain.StoreServiceProxy" /o:TestClient\WebServiceProxy3.cs This way I can logically group the clr namespace and any change to wsdl/xsd namespace is handled in the proxy generation only without affecting the rest of the client side code. Now this is not possible. The svcutil allows to map only one or all namespaces, not a list of mappings. I can do one mapping as shown below but not multiple svcutil.exe /t:code *.wsdl *.xsd /n:"http://mydomain.com/xsd/Model/Store/2009/07/01, MyDomain.Model.Address" /o:TestClient\WebServiceProxy4.cs But is there any solution. Svcutil is not magic, it is written in .Net and programatically generating the proxies. Has anyone written an alternate to svcutil or point me to directions so that I can write one.

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  • send multiple file over TCP with C# using TcpClient

    - by xnoor
    I'm trying to send multiple files over TCP using C# TcpClient, for a single file it works great, but when I have multiple files, it sends only the first one. Here is my code: SENDING FILES try { TcpClient tcpClient = new TcpClient(); NetworkStream networkStream; FileStream fileStream = null; tcpClient.Connect(appUpdateMessage.receiverIpAddress, 12000); networkStream = tcpClient.GetStream(); byte[] byteSend = new byte[tcpClient.ReceiveBufferSize]; string startupPath = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase).Substring(6); DirectoryInfo directoriesInfo = new DirectoryInfo(startupPath); DirectoryInfo[] directories = directoriesInfo.GetDirectories(); FileInfo[] files = directoriesInfo.GetFiles(); for (int iLoop = 0; iLoop < directories.Length; iLoop++) { FileInfo[] subdirectoryFiles = directories[iLoop].GetFiles(); foreach (FileInfo fi in subdirectoryFiles) { fileStream = new FileStream(fi.FullName, FileMode.Open, FileAccess.Read); BinaryReader binFile = new BinaryReader(fileStream); FileUpdateMessage fileUpdateMessage = new FileUpdateMessage(); fileUpdateMessage.fileName = fi.Name; fileUpdateMessage.fileSize = fi.Length; fileUpdateMessage.targetDirectory = fi.Directory.Name; MessageContainer messageContainer = new MessageContainer(); messageContainer.messageType = MessageType.FileProperties; messageContainer.messageContnet = SerializationManager.XmlFormatterObjectToByteArray(fileUpdateMessage); byte[] messageByte = SerializationManager.XmlFormatterObjectToByteArray(messageContainer); networkStream.Write(messageByte, 0, messageByte.Length); int bytesSize = 0; byte[] downBuffer = new byte[2048]; while ((bytesSize = fileStream.Read(downBuffer, 0, downBuffer.Length)) > 0) { networkStream.Write(downBuffer, 0, bytesSize); } fileStream.Close(); } } tcpClient.Close(); networkStream.Close(); return true; } catch (Exception ex) { //logger.Info(ex.Message); return false; } finally { } RECEIVING FILES try { TcpClient tcpClient = c as TcpClient; NetworkStream networkstream = tcpClient.GetStream(); FileStream fileStream = null; byte[] _data = new byte[1024]; int _bytesRead = 0; _bytesRead = networkstream.Read(_data, 0, _data.Length); MessageContainer messageContainer = new MessageContainer(); messageContainer = SerializationManager.XmlFormatterByteArrayToObject(_data, messageContainer) as MessageContainer; switch (messageContainer.messageType) { case MessageType.FileProperties: FileUpdateMessage fileUpdateMessage = new FileUpdateMessage(); fileUpdateMessage = SerializationManager.XmlFormatterByteArrayToObject(messageContainer.messageContnet, fileUpdateMessage) as FileUpdateMessage; string startupPath = @"d:updatefolder";//System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase).Substring(6); DirectoryInfo mainDirectory = new DirectoryInfo(startupPath); DirectoryInfo targetDirecotry = new DirectoryInfo(startupPath + "\\" + fileUpdateMessage.targetDirectory); if (!targetDirecotry.Exists) { mainDirectory.CreateSubdirectory(fileUpdateMessage.targetDirectory); } fileStream = new FileStream(startupPath + "\\" + fileUpdateMessage.targetDirectory + "\\" + fileUpdateMessage.fileName, FileMode.Create, FileAccess.Write, FileShare.ReadWrite); long filezie = fileUpdateMessage.fileSize; int byteSize = 0; byte[] downBuffer = new byte[2048]; while ((byteSize = networkstream.Read(downBuffer, 0, downBuffer.Length)) > 0) { fileStream.Write(downBuffer, 0, byteSize); if (this.InvokeRequired) { this.Invoke((MethodInvoker)delegate { //progressBar1.Value = Convert.ToInt32((byteSize * 100) / fileUpdateMessage.fileSize); progressBar1.Value = Convert.ToInt32((fileStream.Length * 100) / fileUpdateMessage.fileSize); lblFileName.Text = fileUpdateMessage.fileName; }); } else { //progressBar1.Value = Convert.ToInt32((byteSize * 100) / fileUpdateMessage.fileSize); lblFileName.Text = fileUpdateMessage.fileName; } } fileStream.Close(); networkstream.Close(); break; } } catch (Exception ex) { //logger.Error(ex.Message); } Any idea what I am doing wrong?

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  • Advance way of using UIView convertRect method to detect CGRectIntersectsRect multiple times

    - by Chris
    I recently asked a question regarding collision detection within subviews, with a perfect answer. I've come to the last point in implementing the collision on my application but I've come across a new issue. Using convertRect was fine getting the CGRect from the subView. I needed it to be a little more complex as it wasn't exactly rectangles that needed to be detected. on XCode I created an abstract class called TileViewController. Amongst other properties it has a IBOutlet UIView *detectionView; I now have multiple classes that inherit from TileViewController, and each class there are multiple views nested inside the detectionView which I have created using Interface Builder. The idea is an object could be a certain shape or size, I've programatically placed these 'tiled' detection points bottom center of each object. A user can select an item and interactive with it, in this circumstance move it around. Here is my touchesMoved method -(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{ UITouch *touch = [[event allTouches] anyObject]; CGPoint location = [touch locationInView:touch.view]; interactiveItem.center = location; // The ViewController the user has chosen to interact with interactiveView.view.center = location; // checks if the user has selected an item to interact with if (interactiveItem) { // First get check there is more then 1 item in the collection NSUInteger assetCount = [itemViewCollection count]; //NSMutableArray that holds the ViewControllers int detectionCount = 0; // To count how many times a CGRectIntersectsRect occured UIView *parentView = self.view; // if there is more then 1 item begin collision detection if (assetCount > 1) { for (TileViewController *viewController in itemViewCollection) { if (viewController.view.tag != interactiveView.view.tag) { if (viewController.detectionView.subviews) { for (UIView *detectView in viewController.detectionView.subviews) { CGRect viewRect; viewRect = [detectView convertRect:[detectView frame] toView:parentView]; // I could have checked to see if the below has subViews but didn't - In my current implementation it does anyway for (UIView *detectInteractView in interactiveView.detectionView.subviews) { CGRect interactRect; interactRect = [detectInteractView convertRect:[detectInteractView frame] toView:parentView]; if (CGRectIntersectsRect(viewRect, interactRect) == 1) { NSLog(@"collision detected"); [detectView setBackgroundColor:[UIColor blueColor]]; [detectInteractView setBackgroundColor:[UIColor blueColor]]; detectionCount++; } else { [detectView setBackgroundColor:[UIColor yellowColor]]; [detectInteractView setBackgroundColor:[UIColor yellowColor]]; } } } } } } // Logic if no items collided if (detectionCount == 0) { NSLog(@"Do something"); } } } } Now the method itself works to an extent but I don't think it's working with the nested values properly as the detection is off. A simplified version of this method works - Using CGRectIntersectsRect on the detectionView itself so I'm wondering if I'm looping through and checking the views correctly? I wasn't sure whether it was comparing in the same view but I suspect it is, I did modify the code slightly at one point, rather then comparing the values in self.view I took the viewController.detectView's UIViews into the interactiveView.detectView but the outcome was the same. It's rigged so the subviews change colour, but they change colour when they are not even touching, and when they do touch the wrong UIviews are changing colour Many thanks in advance

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  • Running multiple image manipulations in parallel causing OutOfMemory exception

    - by Tom
    I am working on a site where I need to be able to split and image around 4000x6000 into 4 parts (amongst many other tasks) and I need this to be as quick as possible for multiple users. My current code for doing this is var bitmaps = new RenderTargetBitmap[elements.Length]; using (var stream = blobService.Stream(key)) { BitmapImage bi = new BitmapImage(); bi.BeginInit(); bi.StreamSource = stream; bi.EndInit(); for (var i = 0; i < elements.Length; i++) { var element = elements[i]; TransformGroup transformGroup = new TransformGroup(); TranslateTransform translateTransform = new TranslateTransform(); translateTransform.X = -element.Left; translateTransform.Y = -element.Top; transformGroup.Children.Add(translateTransform); DrawingVisual vis = new DrawingVisual(); DrawingContext cont = vis.RenderOpen(); cont.PushTransform(transformGroup); cont.DrawImage(bi, new Rect(new Size(bi.PixelWidth, bi.PixelHeight))); cont.Close(); RenderTargetBitmap rtb = new RenderTargetBitmap(element.Width, element.Height, 96d, 96d, PixelFormats.Default); rtb.Render(vis); bitmaps[i] = rtb; } } for (var i = 0; i < bitmaps.Length; i++) { using (MemoryStream ms = new MemoryStream()) { PngBitmapEncoder encoder = new PngBitmapEncoder(); encoder.Frames.Add(BitmapFrame.Create(bitmaps[i])); encoder.Save(ms); var regionKey = WebPath.Variant(key, elements[i].Id); saveBlobService.Save("image/png", regionKey, ms); } } I am running multiple threads which take jobs off a queue. I am finding that if this part of code is hit by 4 threads at once I get an OutOfMemory exception. I can stop this happening by wrapping all the code above in a lock(obj) but this isn't ideal. I have tried wrapping just the first using block (where the file is read from disk and split) but I still get the out of memory exceptions (this part of the code executes quite quickly). I this normal considering the amount of memory this should be taking up? Are there any optimisations I could make? Can I increase the memory available? UPDATE: My new code as per Moozhe's help public static void GenerateRegions(this IBlobService blobService, string key, Element[] elements) { using (var stream = blobService.Stream(key)) { foreach (var element in elements) { stream.Position = 0; BitmapImage bi = new BitmapImage(); bi.BeginInit(); bi.SourceRect = new Int32Rect(element.Left, element.Top, element.Width, element.Height); bi.StreamSource = stream; bi.EndInit(); DrawingVisual vis = new DrawingVisual(); DrawingContext cont = vis.RenderOpen(); cont.DrawImage(bi, new Rect(new Size(element.Width, element.Height))); cont.Close(); RenderTargetBitmap rtb = new RenderTargetBitmap(element.Width, element.Height, 96d, 96d, PixelFormats.Default); rtb.Render(vis); using (MemoryStream ms = new MemoryStream()) { PngBitmapEncoder encoder = new PngBitmapEncoder(); encoder.Frames.Add(BitmapFrame.Create(rtb)); encoder.Save(ms); var regionKey = WebPath.Variant(key, element.Id); blobService.Save("image/png", regionKey, ms); } } } }

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  • multiple droppable

    - by Sune
    Ive have multiple droppable divs (which all have the same size) and one draggable div. The draggable div is 3 times bigger than one droppable. When I drag the draggable div on the droppables divs I want to find which droppable has been affeckted. My code looks like this: $(function () { $(".draggable").draggable({ drag: function (event, ui) { } }); $(".droppable").droppable({ drop: function (event, ui) { alert(this.id); } }); }); the html <div style="height:100px; width:200px; border-bottom:1px solid red; " id="Div0" class="droppable"> drop in me1! </div> <div style="height:100px; width:200px; border-bottom:1px solid red;" id="Div1" class="droppable"> drop in me2! </div> <div style="height:100px; width:200px; border-bottom:1px solid red; " id="Div2" class="droppable"> drop in me2! </div> <div style="height:100px; width:200px; border-bottom:1px solid red; " id="Div3" class="droppable"> drop in me2! </div> <div style="height:100px; width:200px; border-bottom:1px solid red; " id="Div4" class="droppable"> drop in me2! </div> <div style="height:100px; width:200px; border-bottom:1px solid red; " id="Div5" class="droppable"> drop in me2! </div> <div style="height:100px; width:200px; border-bottom:1px solid red; " id="Div6" class="droppable"> drop in me2! </div> <div style="height:100px; width:200px; border-bottom:1px solid red; " id="Div7" class="droppable"> drop in me2! </div> <div class="draggable" id="drag" style="height:300px; width:50px; border:1px solid black;"><span>Drag</span></div> But my alert only shows the first which my draggable div (Div0) hits, how can I find the missing (Div1 and Div2), which also is affeckted?? Here's a guy with the same problem : http://forum.jquery.com/topic/drop-onto-multiple-droppable-elements-at-once

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  • Match over multiple lines perl regular expression

    - by John
    Hi, I have a file like this: 01 00 01 14 c0 00 01 10 01 00 00 16 00 00 00 64 00 00 00 65 00 00 01 07 40 00 00 22 68 61 6c 2e 6f 70 65 6e 65 74 2e 63 6f 6d 3b 30 30 30 30 30 30 30 30 32 3b 30 00 00 00 00 01 08 40 00 00 1e 68 61 6c 2e 6f 70 65 6e 65 74 2d 74 65 6c 65 63 6f 6d 2e 6c 61 6e 00 00 00 00 01 28 40 00 00 21 72 65 61 6c 6d 31 2e 6f 70 65 6e 65 74 2d 74 65 6c 65 63 6f 6d 2e 6c 61 6e 00 00 00 00 00 01 25 40 00 00 1e 68 61 6c 2e 6f 70 65 6e 65 74 2d 74 65 6c 65 63 6f 6d 2e 6c 61 6e 00 00 00 00 01 1b 40 00 00 20 72 65 61 6c 6d 2e 6f 70 65 6e 65 74 2d 74 65 6c 65 63 6f 6d 2e 6c 61 6e 00 00 01 02 40 00 00 0c 01 00 00 16 00 00 01 a0 40 00 00 0c 00 00 00 01 00 00 01 9f 40 00 00 0c 00 00 00 00 00 00 01 16 40 00 00 0c 00 00 00 00 00 00 01 bb 40 00 00 28 00 00 01 c2 40 00 00 0c 00 00 00 00 00 00 01 bc 40 00 00 13 31 39 37 37 31 31 31 32 32 33 31 00 I am reading the file and then finding certain octets and replacing them with tags: while(<FH>){ $line =~ s/(00 00 00 64)/<incr4> /g; $line =~ s/(00 00 00 65)/<incr4> /g; $line =~ s/(30 30 30 30 30 32)/<incr6ascii:999999:0>/g; $line =~ s/(31 31 32 32 33 31)/<incr6ascii:999999:0>/g; print OUTPUT $line; # } So for example, 00 00 00 64 would be replaced by the tag. This was working fine, but it doesn't seem to able to match over multiple lines any more. For example the pattern 31 31 32 32 33 31 runs over multiple lines, and the regular expression doesn't seem to catch it. I tried using /m /s pattern modifiers to ignore new lines but they didn't match it either. The only way around it I can come up with, is to read the whole file into a string using: undef $/; my $whole_file = <FH>; my $line = $whole_file; $line =~ s/(00 00 00 64)/<incr4> /g; $line =~ s/(00 00 00 65)/<incr4> /g; $line =~ s/(30 30 30 30 30 32)/<incr6ascii:999999:0>/g; $line =~ s/(31 31 32 32 33 31)/<incr6ascii:999999:0>/g; print OUTPUT $line; This works, the tags get inserted correctly, but the structure of the file is radically altered. It is all dumped out on a single line. I would like to retain the structure of the file as it appears here. Any ideas as to how I might do this? /john

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  • Lock free multiple readers single writer

    - by dummzeuch
    I have got an in memory data structure that is read by multiple threads and written by only one thread. Currently I am using a critical section to make this access threadsafe. Unfortunately this has the effect of blocking readers even though only another reader is accessing it. There are two options to remedy this: use TMultiReadExclusiveWriteSynchronizer do away with any blocking by using a lock free approach For 2. I have got the following so far (any code that doesn't matter has been left out): type TDataManager = class private FAccessCount: integer; FData: TDataClass; public procedure Read(out _Some: integer; out _Data: double); procedure Write(_Some: integer; _Data: double); end; procedure TDataManager.Read(out _Some: integer; out _Data: double); var Data: TDAtaClass; begin InterlockedIncrement(FAccessCount); try // make sure we get both values from the same TDataClass instance Data := FData; // read the actual data _Some := Data.Some; _Data := Data.Data; finally InterlockedDecrement(FAccessCount); end; end; procedure TDataManager.Write(_Some: integer; _Data: double); var NewData: TDataClass; OldData: TDataClass; ReaderCount: integer; begin NewData := TDataClass.Create(_Some, _Data); InterlockedIncrement(FAccessCount); OldData := TDataClass(InterlockedExchange(integer(FData), integer(NewData)); // now FData points to the new instance but there might still be // readers that got the old one before we exchanged it. ReaderCount := InterlockedDecrement(FAccessCount); if ReaderCount = 0 then // no active readers, so we can safely free the old instance FreeAndNil(OldData) else begin /// here is the problem end; end; Unfortunately there is the small problem of getting rid of the OldData instance after it has been replaced. If no other thread is currently within the Read method (ReaderCount=0), it can safely be disposed and that's it. But what can I do if that's not the case? I could just store it until the next call and dispose it there, but Windows scheduling could in theory let a reader thread sleep while it is within the Read method and still has got a reference to OldData. If you see any other problem with the above code, please tell me about it. This is to be run on computers with multiple cores and the above methods are to be called very frequently. In case this matters: I am using Delphi 2007 with the builtin memory manager. I am aware that the memory manager probably enforces some lock anyway when creating a new class but I want to ignore that for the moment. Edit: It may not have been clear from the above: For the full lifetime of the TDataManager object there is only one thread that writes to the data, not several that might compete for write access. So this is a special case of MREW.

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