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• What are the industry standard ways of packaging and deploying WCF services

  - by codegoblin

  Hi Is there a industry standard way of packaging and deploying web services which can cater to following contraints/Complexities Web services are developed in different location and ultimately deployed on common site This should take care of versioning ( Side by side web service deployment) Client side versioning issues

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• Order of imports in C#

  - by BrianK

  How do you like to arrange your "using xxx" imports in C#? I got bored the other day and put them in order from shortest to longest. using System; using System.Web; using System.Data; using System.Linq; using System.Web.UI; using Telerik.Web.UI; using System.Drawing; using System.Collections; using System.Configuration; using System.Web.UI.WebControls; using System.Collections.Generic; Brian

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• Why is there no music streaming API service?

  - by Chad Johnson

  Apple has decided to kill lala.com. I loved that site. Now, everyone has to go back to paying $0.89+ for songs from Amazon, iTunes, etc. Lame. Rhapsody would be great, except there are no clients for Mac or Linux. They do have a web interface, buy it is nothing compared to lala's web 2.0y interface. What I just don't understand is, why is there no music API streaming service out there? Basically, developers could hook the service into any desktop or web app, and then users of the app could pay $x a month (like with Rhapsody) and play any amount of music, so long as their subscription is active. Why not? Lala streamed music to web browsers, so surely it could be as secure as lala is (was), preventing music theft.

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• DPAPI encryted section returns null

  - by Jay

  Hi, I am encrypting the appSettings and the connectionStrings sections in the app.config file. But when I try to read the value, its always returning null. I am not sure if I am missing something. I thought the decryption was transparent. Has anyone else had any success with reading DPAPI protected sections in the app.config file.

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• Best Pattern for AllowUnsafeUpdates

  - by webwires

  So far, in my research I have seen that it is unwise to set AllowUnsafeUpdates on GET request operation to avoid cross site scripting. But, if it is required to allow this, what is the proper way to handle the situation to mitigate any exposure? Here is my best first guess on a reliable pattern if you absolutely need to allow web or site updates on a GET request. Best Practice? protected override void OnLoad(System.EventArgs e) { if(Request.HttpMethod == "POST") { SPUtility.ValidateFormDigest(); // will automatically set AllowSafeUpdates to true } // If not a POST then AllowUnsafeUpdates should be used only // at the point of update and reset immediately after finished // NOTE: Is this true? How is cross-site scripting used on GET // and what mitigates the vulnerability? } // Point of item update SPSecurity.RunWithElevatedPrivledges(delegate() { using(SPSite site = new SPSite(SPContext.Current.Site.Url)) { using (SPWeb web = site.RootWeb) { bool allowUpdates = web.AllowUnsafeUpdates; //store original value web.AllowUnsafeUpdates = true; //... Do something and call Update() ... web.AllowUnsafeUpdates = allowUpdates; //restore original value } } }); Feedback on the best pattern is appreciated.

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• How do I create a Solution Wide Connection String

  - by Renier

  Hi. Does anyone know if it is possible to create a single connection string that will be accessible to all the projects in a solution (we have about 6). I can create a text file with this information, but we need design time support as well, and it is not practical to have a connection string in every App.Config and Web.config file in the solution. We basically want a Single connection string that is easy to change should the location of the db change, that will also be used by the IDE for design time support Regards, Renier

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• How do I set default host for url helpers in rails?

  - by ja.kub.cz

  I would like to do something like this config.default_host = 'www.subdomain.example.com' in some of my configuration files, so that object_url helpers produce link beginning with http://www.subdomain.example.com I have tried to search the docs but I did not find anytnig exept ActionMailer docs and http://api.rubyonrails.org/classes/Rails/Configuration.html which is not usefull for me, because I do not know in which pat to look. Is there a place which describes the whole structure of Rails::Initializer.config? Thanks for helping Jakub

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• Problem: .vbproj the project is not supported by this installation

  - by harold-sota

  I have visual studio 2008 installed in my pc when I try to open a .Net 2005 Solution with multi-projects, there are project in vb and c#. The only web project on this solution display the following message: .vbproj the project is not supported by this installation I try to open the web project separately from the solution and I not have problem. How I can open the web project from the solution existing solution and not open a empty solution? Any ideas?

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• Accessing Spring beans from a Tiles view (JSP)

  - by Sinuhe

  In Spring MVC I can access my beans in JSP using JstlView's exposedContextBeanNames (or exposeContextBeansAsAttributes). For example, then, in my JSP I can write (${properties.myProperty). But when the same JSP is a part of a tiles view, these properties aren't accessible. Is possible to configure Tiles properly or access these properties in another way? I'm using Spring MVC 3.0.2 and Tiles 2.2.1. Here's a bit of my configuration: <bean id="tilesViewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver"> <property name="order" value="1"/> <property name="viewClass" value="org.springframework.web.servlet.view.tiles2.TilesView" /> </bean> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/> <property name="order" value="2"/> <property name="prefix" value="/WEB-INF/views/"/> <property name="suffix" value=".jsp"/> <property name="exposedContextBeanNames"> <list><value>properties</value></list> </property> </bean>

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• ASP.Net webapplication, keep in mind things for performance ,scalability

  - by Radhi

  what are the things a developer should keep in mind or should take care when depeloping a web application. web application e.g. social networking web app. which are the things which must be implemented to get good performance and scalability. please provide any article or blogs or suggestions for this kind of question if you have -thanks in advance

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• Android interacting with HTML5 tutorial?

  - by Adam

  I've been looking at using a WebView to display an HTML5 webpage, where the novel features of the mobile device (GPS, compass, accelerometer, camera, etc) can be fed back into the web page. I was wondering if there were any good tutorials showing these functions interacting with the webview. So far I've found ways for the WebView to send javascript commands to the web page, but those interactions haven't been triggered from outside the web view (such as upon receiving an intent from the GPS or accelerometer). Note: The HTML5 Geolocation API is not what I'm interested in. I'm interested in the web page <- WebView interactions, as noted here: http://android-developers.blogspot.com/2008/09/using-webviews.html

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• Windows Azure: asp.net <appsetting> for ChatHttpHandler not found

  - by veda

  I have a problem in setting the chartHttpHandler in web.config for windows azure Initially I added a chartHttpHandler on my web.config file <remove name="ChartImageHandler"/> <add name="ChartImageHandler" preCondition="integratedMode" verb="GET,HEAD" path="ChartImg.axd" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/> under system.webServer section Then I got an error stating Invalid temp directory in chart handler configuration [c:\TempImageFiles\]. Then I found that I should change in From <add key="ChartImageHandler" value="storage=file;timeout=20;dir=c:\TempImageFiles\;" /> To <add key="ChartImageHandler" value="storage=file;timeout=20;" /> I am not able to find this section in my web.config file. So I tried to add it under section but it gave me error that it is an invalid child Likewise, I tried adding it under section, it too gave the same error... So, I added sepeartely, Then I am not able to see anything.. The webpage is just blank... What should I have to do.. Can anyone tell me "how to solve it"

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• SharePoint 2010 / ASP.Net Integration - Looking for advice

  - by jpennal

  I have been Googling a problem that I have with trying to integrate the web application that I am working on with SharePoint 2010. The web application is a wiki style tool that allows users to log in via forms authentication or WIA against Active Directory and create content for themselves and others. What we would like to do is to allow a user have a page with the content they have created in our web application mixed in with content that they have living on the SharePoint server. For example, they may want to see a list of documents that they have on the SharePoint server mixed in with some of their content. To accomplish this, we would like to take the credentials the user has logged into our web application with (for example MYDOMAIN\jsmith) and be able to query SharePoint for the documents of that same user (MYDOMAIN\jsmith) WITHOUT the user being prompted to re-enter their credentials to access the SharePoint server (we are trying to avoid the double-hop problem) We have come up with some options for how we want to do this, but we are unsure of what the best approach is. For example, we could - Have a global user, shared by all users to get information we need from SharePoint. The downside is that we cannot filter SharePoint content to a particular user - We could store the users credentials when they log in, but that would only work for users authenticating via forms auth and would be a security issue that some users/clients would not like - Writing a SharePoint extension using WCF to allow us to access the information we need, however we'd still have the issue of figuring out how to impersonate the user we want. Neither of these options are ideal and in our investigation we came across the Claims Authentication/STS option which seems like it is trying to solve the problem we are having. So my question is, based on what I have written, is Claims/STS the best approach for us? We have not been able to find much direction on how to use this method to call into SharePoint from a Web Application and pass along the existing credentials. Does anyone have any experience with any of these issues?

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• rake db:migrate gives a uninitialized class variable @@configuration in Rails error

  - by PK

  uninitialized class variable @@configuration in Rails /usr/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/initializer.rb:19:in `configuration' /usr/lib/ruby/gems/1.8/gems/thoughtbot-factory_girl-1.2.2/lib/factory_girl.rb:24 /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require' This is the initial part of the enviroment.rb: RAILS_GEM_VERSION = '2.1.0' unless defined? RAILS_GEM_VERSION require File.join(File.dirname(__FILE__), 'boot') Rails::Initializer.run do |config| config.gem "oauth", :version => "0.2.7", :lib => "oauth"

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• Programmatically get screenshot of page

  - by Ender

  I'm writing a specialized crawler and parser for internal use and I require the ability to take a screenshot of a web page in order to check what colours are being used throughout. The program will take in around ten web addresses and will save them as a bitmap image, from there I plan to use LockBits in order to create a list of the five most used colours within the image. To my knowledge it's the easiest way to get the colours used within a web page but if there is an easier way to do it please chime in with your suggestions. Anyway, I was going to use this program until I saw the price tag. I'm also fairly new to C#, having only used it for a few months. Can anyone provide me with a solution to my problem of taking a screenshot of a web page in order to extract the colour scheme?

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• Strange error in SpringMVC Application Startup

  - by Euzel Villanueva

  I'm getting a very strange stack trace when trying to load a SpringMVC application and at a lost to why this is occurring. org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter#0': Cannot create inner bean '(inner bean)' of type [org.springframework.http.converter.xml.XmlAwareFormHttpMessageConverter] while setting bean property 'messageConverters' with key [4]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#6': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.http.converter.xml.XmlAwareFormHttpMessageConverter]: Constructor threw exception; nested exception is java.lang.OutOfMemoryError: Java heap space at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:281) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:125) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedList(BeanDefinitionValueResolver.java:353) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:153) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1325) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1086) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425) at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:442) at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:458) at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:339) at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:306) at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:127) at javax.servlet.GenericServlet.init(GenericServlet.java:160) at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1133) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1087) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:996) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4834) at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5155) at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5150) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619) Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#6': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.http.converter.xml.XmlAwareFormHttpMessageConverter]: Constructor threw exception; nested exception is java.lang.OutOfMemoryError: Java heap space at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:965) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:911) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:270) ... 31 more Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.http.converter.xml.XmlAwareFormHttpMessageConverter]: Constructor threw exception; nested exception is java.lang.OutOfMemoryError: Java heap space at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:141) at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:74) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:958) ... 35 more

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• Java String.replaceAll regex

  - by atomsfat

  I want to replace the first context of web/style/clients.html with the java String.replaceFirst method so I can get: ${pageContext.request.contextPath}/style/clients.html I tried String test = "web/style/clients.html".replaceFirst("^.*?/", "hello/"); And this give me: hello/style/clients.html but when I do String test = "web/style/clients.html".replaceFirst("^.*?/", "${pageContext.request.contextPath}/"); gives me java.lang.IllegalArgumentException: Illegal group reference

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• plupload with webpy.

  - by markus

  Hi, i have a problem. I want to upload a file with plupload with the HML5 runtime. This is my html/js code : jQuery(function(){ jQuery("#uploader").pluploadQueue({ // General settings runtimes : 'html5', name : 'file', url : 'http://server.name/addContent', max_file_size : '${maxSize}$_("GB")', }); jQuery('#form_upload_file').submit(function(e) { var uploader = jQuery('#uploader').pluploadQueue(); // Validate number of uploaded files if (uploader.total.uploaded == 0) { // Files in queue upload them first if (uploader.files.length > 0) { // When all files are uploaded submit form uploader.bind('UploadProgress', function() { if (uploader.total.uploaded == uploader.files.length) jQuery('#form_upload_file').submit(); }); uploader.start(); } else alert('You must at least upload one file.'); e.preventDefault(); } }); }); <form id="form_upload_file" action="#" method="POST"> <div id="uploader"></div> <input type="hidden" name="token" value="token" /> <input type="hidden" name="idUser" value="$idUser" /> </form> So, when i click in the button to upload(the submit() method is not called), it does an OPTIONS HTTP request to my server so i don't know what i must do to save the file? this is my webpy code : def OPTIONS(self): web.header('Content-type', 'text/plain: charset=utf-8') web.header('Cache-Control', 'no-store, no-cache, must-revalidate') web.header('Cache-Control', 'post-check=0, pre-check=0', False) web.header('Pragma', 'no-cache') def POST(self): input = web.input(_unicode=False, file={})#on récupère les input self.copy(input.file.file) etc. any idea ? thanks.

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• Why not use tables for layout in HTML?

  - by Bno

  It seems to be the general opinion that tables should not be used for layout in HTML. Why? I have never (or rarely to be honest) seen good arguments for this. The usual answers are: It's good to separate content from layoutBut this is a fallacious argument; Cliche Thinking. I guess it's true that using the table element for layout has little to do with tabular data. So what? Does my boss care? Do my users care?Perhaps me or my fellow developers who have to maintain a web page care... Is a table less maintainable? I think using a table is easier than using divs and CSS.By the way... why is using a div or a span good separation of content from layout and a table not? Getting a good layout with only divs often requires a lot of nested divs. Readability of the codeI think it's the other way around. Most people understand html, few understand CSS. It's better for SEO not to use tablesWhy? Can anybody show some evidence that it is? Or a statement from Google that tables are discouraged from an SEO perspective? Tables are slower.An extra tbody element has to be inserted. This is peanuts for modern web browsers. Show me some benchmarks where the use of a table significantly slows down a page. A layout overhaul is easier without tables, see css Zen Garden.Most web sites that need an upgrade need new content (html) as well. Scenarios where a new version of a web site only needs a new CSS file are not very likely. Zen Garden is a nice web site, but a bit theoretical. Not to mention its misuse of CSS. I am really interested in good arguments to use divs + CSS instead of tables.

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• Why has Javascript been (mostly) only a browser-side technology for more than 10 years?

  - by Gabriel Cuvillier

  Recently there is a lot of projects that pushes Javascript into other directions: as a general purpose scripting language (GLUEScript, Rhino), as an extension language (QTScript, Adobe Reader, OO Macros), Widgets (Yahoo Widgets, MS Gadgets, Dashboard), and even server-side JS & web frameworks (CommonJS, Helma, Phobos, V8cgi), which seems obvious since it is already a language widely used for web development. But wait, everything is so new and nothing is really mature. However JS is around for almost 15 years, being as powerfull as any other scripting languages, being standardised by the ECMA, and being a mandatory technology for web development. Why did it take so much time to gain acceptance into other domains than web browsers?

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• simple jquery callback works on .net3.5 but nothing fires on .net 2.0?

  - by CliffC

  hi i have the following jquery postback method on the client <%@ Page Language="C#" AutoEventWireup="true" CodeFile="CallServerWithParameters.aspx.cs" Inherits="CallServerWithParameters" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> <script src="jquery-1.2.6.js" type="text/javascript"></script> <script language="javascript"> $(document).ready(function() { $("#txtNoOfMales").change(function() { var ticketRequired = this.value; var options = { type: "POST", url: "CallServerWithParameters.aspx/GetAvailableTicketsForMales", data: "{no:'" + ticketRequired + "'}", contentType: "application/json; charset=utf-8", dataType: "json", success: function(response) { if (response.d != "") { alert(response.d); $("#txtNoOfMales").focus(); } } }; //Call the PageMethods $.ajax(options); }); }); </script> </head> <body> <form id="form1" runat="server"> <div> No of Male Tickets:<asp:TextBox ID="txtNoOfMales" runat="server"></asp:TextBox> </div> </form> </body> </html> and the following web method on the server side using System; using System.Collections.Generic; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.Services; public partial class CallServerWithParameters : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } [WebMethod] public static string GetAvailableTicketsForMales(int no) { string result = ""; int NoOfTicketsAvailable = 5; if (no > NoOfTicketsAvailable) { result = "Only " + NoOfTicketsAvailable.ToString() + " Male ticket(s) avaialable. Please eneter a lower number!"; } return result; } } problem is everything works fine on .net 3.5 but if i use the same code on .net 2.0 the webmethod event does not get call at all, anybody have any idea what i did wrong? thanks updated with full source code

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• Invalid character in a Base-64 string

  - by swetha

  I am getting this error when I am validating the user with sql membership provider this.provider.ValidateUser(userName, password); the password i have used is "freetrial". I tried trimming the spaces but still no luck!!! and the call stack is as follows: [FormatException: Invalid character in a Base-64 string.] System.Convert.FromBase64String(String s) +0 System.Web.Security.MembershipProvider.EncodePassword(String pass, Int32 passwordFormat, String salt) +54 System.Web.Security.SqlMembershipProvider.CheckPassword(String username, String password, Boolean updateLastLoginActivityDate, Boolean failIfNotApproved, String& salt, Int32& passwordFormat) +169 System.Web.Security.SqlMembershipProvider.CheckPassword(String username, String password, Boolean updateLastLoginActivityDate, Boolean failIfNotApproved) +42 System.Web.Security.SqlMembershipProvider.ValidateUser(String username, String password) +78

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• Reading a .dat file as "rb" read binary

  - by donpal

  I have a web-accessible php script that accesses a folder above the webroot (not web accessible) called \folder\. This is done via setting the path to \folder\ in .htaccess the usual way so that \folder\ becomes part of the project. \folder\ contains a .php script (communicates with the web-accessible script inside the webroot) some .inc files (used by the .php in the same folder, above the webroot) a dat file (used by the .inc in the same folder, above the webroot) All files are accessible to each other as needed: the web-accessible php inside the webroot can communicate with the php above the webroot the php above the webroot can communicate with the inc in the same folder But the inc above the webroot can't communicate with the dat in the same folder, and I have no idea why that's the case The inc myinc.inc is supposed to open the dat mydat.dat in the same folder like this fopen('mydat.dat', "rb"); but I get an error that no file called mydat.dat exists inside \folder\myinc.inc. Of course it does not, the .dat is sibling to .inc and is not supposed to be inside it. Why is php expecting to find the .dat file inside the .inc. The stranger thing is that if I move the .dat in the web-accessible folder, it becomes readable now. Any ideas why php is trying to find the .dat inside the .inc?

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• Advice on designing and building distributed application to track vehicles

  - by dario-g

  I'm working on application for tracking vehicles. There will be about 10k or more vehicles. Each will be sending ~250bytes in each minute. Data contains gps location and everything from CAN Bus (every data that we can read from vehicle computer and dashboard). Data are sent by GSM/GPRS (using UDP protocol). Estimated rows with this data per day is ~2000k. I see there 3 main blocks. 1. Multithreaded Socket Server (MSS) - I have it. MSS stores received data to the queue (using NServiceBus). 2. Rule Processor Server (RPS) - this is core of this system. This block is responsible for parsing received data, storing in the database, processing rules, sending messages to Notifier Server (this will be sending e-mails/sms texts). Rule example. As I said between received bytes there will be information about current speed. When speed will be above 120 then: show alert in web application for specified users, send e-mail, send sms text. (There can be more than one instance of RPS). 3. Web application - allows reporting and defining rules by users, monitoring alerts, etc. I'm looking for advice how to design communication between RPS and Web application. Some questions: - Should Web application and RPS have separated databases or one central database will be enough? I have one domain model in web application. If there will be one central database then can I use the same model (objects) on RPS? So, how to send changed rules to RPS? I try to decouple this blocks as much as possible. I'm planning to create different instance of application for each client (each client will have separated database). One client will be have 10k vehicles, others only 100 vehicles.

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• why develop in windows/desktop application?

  - by Alexander

  Just wondering what your comments are regarding the current trend as everything is moving to the web or even the cloud. The significance of an OS or desktop application is getting less attention than web application. So to those folks out there who still develop windows applications, such as WPF. Why still do it? Why not move to web programming? Silverlight instead for example...

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