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  • How to create a manager class without global variables nor singletons?

    - by Omega
    I would like to implement some kind of manager class in my application. It will be in charge of loading textures, processing them, distributing them etc... At first, I wanted to make a global variable that simply contains an instance of my manager class. I found this question: http://stackoverflow.com/questions/4646577/global-variables-in-java. However, the users there seem to recommend to never use global variables. Fine then, I once heard about Singletons, so I though I could use that instead. I mean, creating just one instance of my manager class sounds good. However, I found this other question: When is Singleton appropriate?, which basically tells me that Singletons are, in most scenarios, some kind of anti-pattern. Now I am a bit lost - what other approach can I take to create my manager class, whose only requirement is to be accessible from anywhere?

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  • Momentary freezes about every 60 seconds

    - by Barafu Albino
    I have just switched from OpenSuse to Ubuntu (the only reason is poor repositories - I got tired of installing everything from tar-balls). OpenSuse KDE worked flawlessly. Off-topic OS 7 does too. However, Ubuntu 13.04 after all updates keeps freezing about every minute. The time differs between occasions. It halts just for a fraction of a second, too quick to notice, but music crackles, and compressed video looses its tracks and covers with errors until a scenecut. I don't know what is responsible, the logs are clear. Tried to: change audio card, switched to Nvidia drivers and back, paused all unneeded daemons. Didn't help much. Any ideas where to look? I am experienced in Linux, just new in Ubuntu.

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  • Have you considered working for Microsoft in the IT organization?

    - by CatherineRussell
    Microsoft’s IT organization is hosting a Webinar for female technology professionals! Microsoft’s IT organization is hosting a Webinar on Thursday, June 24th at 11:30 AM PDT for female technology professionals interested in meeting some of the dynamic women who work in IT at Microsoft. Four different women from across the organization will share with you their stories and highlight why they have chosen Microsoft’s IT organization as a great place to grow and nurture their careers. This event will can be experienced via Live Meeting and audio conferencing. An RSVP is required to attend this event. To reserve your spot, register here: http://microsoftit.eventbrite.com Upon registration, a confirmation will be sent including additional event details and a FAQ. Find out more about Career Opportunities with Microsoft IT http://www.microsoft-careers.com/content/information-technology/?utm_source=LinkedIn&utm_campaign=Event_Women_in_IT_Webinar_MSIT_US_maryb_6152010

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  • Software Center crashes and terminal errors

    - by user97521
    *note*I'm a new user to Ask Ubuntu and I've only recently switched to Ubuntu 12.04. When I try to open the software center (Ubuntu 12.04 32-bit) it will flash open, load for maybe 1-2 seconds, and then close. When i try using: sudo apt-get purge software center sudo apt-get install sudo apt-get update sudo apt-get upgrade I get this within the terminal: Reading package lists... Error! E: Problem parsing dependency Depends E: Error occurred while processing printer-driver-hpcups (NewVersion2) E: Problem with MergeList /var/lib/dpkg/status E: The package lists or status file could not be parsed or opened. *The problem fixed itself after I shut down my laptop for the night and turned it back on to check my e-mail this afternoon. If anyone could tell me how to fix this problem in the future please do, I would like to learn about these kind of things because i don't plan on putting windows on my laptop again :P *

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  • fault tolerant uploading tool

    - by andersonbd1
    I'm setting up a wordpress site for a friend who has some somewhat large audio files (150M)... He's on a bad connection and I'd guess it'll take him a while to upload those files with the normal wordpress way. I'm looking for a tool that I can install on the server that allows uploads and is also fault tolerant... for example if you loses his connection, or power, or whatever it'll pick up where it left off. I realize web technologies probably don't do that, but perhaps flash or something? Any ideas?

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  • Adding icon to the system tray (notification area)

    - by Moma Antero
    Hello, I have a small audio recording application programmed with GTK/GDK. (see picture). And I would like to add a tray-icon for it so users can control the application window and recording from it. Adding a tray icon: I have planned to use the GtkStatusIcon class for this task. Ref: http://library.gnome.org/devel/gtk/2.11/GtkStatusIcon.html Is GtkStatusIcon the recommended solution that also works in Ubuntu's Unity and in the GNOME 3.0 desktop? I already googled a bit and found a good example on GtkStatusIcon. Could I also use Libindicator for this task? Ref: https://launchpad.net/libindicator

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  • android application that visualize real time data

    - by matarsak
    I want to build and android app that visualize real time data , I set up a UDP channel that get the data , now I want to visualize it . I now that I can use openGL ES. but I have now back ground and in a few weeks I dont think that i'm able to learn that . what about android processing ? could it be used for extensive visualization task like this? or it's limited ? I heard it's not hard to learn that. any other option ?

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  • Vermont IT Jobs: .NET Developer in Downtown Burlington

    Applications Engineer Aurora North Software, Inc. Burlington-based software development & consulting company offers an opportunity to rapidly advance your skillset using the latest MS technologies to develop and implement core systems at some of the countrys most prestigious law firms.  Projects include product integration, workflow processing, business intelligence, and SharePoint development. Requires a minimum 2-5 years experience with full development life cycle, .NET development experience,...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • low volume/dual boot

    - by user2367
    I have an intel Imac dual-booting Ubuntu 10.04 and OSX 10.6. Both work fine, but sound is very quiet in Linux, even though the gnome volume control panel and pulse audio volume control panels are both set to 100%. I can turn the speaker volume up and it's fine, but then when I boot back to OSX the volume makes me jump out of my skin. Is there a setting I'm missing? If I turn the gnome sound pref volume higher then 100, it tends to distort the sound. (crackling)

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  • What is meant by namespaced content and what advantages does it have?

    - by Geek
    I was reading this blog by James Bennett regarding HTML vs XHTML . He writes : I don’t have any need for namespaced content; I’m not displaying any complex mathematical notation here and don’t plan to, and I don’t use SVG for any images. So that’s one advantage of XHTML out the window. I also don’t have any need for XML tools; all the processing I need to do can be handled by HTML-parsing libraries like BeautifulSoup. That’s the other advantage gone. What does he mean by namespaced content and what advantage does it provide us ?

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  • JSR Updates and EC Nominations open

    - by heathervc
    JSR 310, Date and Time API, has published an Early Draft Review 2.  This review closes 14 October. JSR 353, Java API for JSON Processing, has published an Early Draft Review.  This review closes 7 October. JSR 356, Java API for WebSocket, has published an Early Draft Review. This review closes 27 October. JSR 339,  JAX-RS 2.0: The Java API for RESTful Web Services, has published a Public Review. This review closes 12 November. The EC Nominations are now open until 11 October.  Any JCP Member may nominate themselves for the 2 open seats in the 2012 EC Elections.  Note that both seats will be for a 1 year term only, since all EC Members will stand for Election in 2013.  The merged EC will take effect in November 2012.

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  • Send some form info to a PHP page to be processed without going to that page? [closed]

    - by zuko
    Okay, so I'm not very familiar with php. I have a very simple form, just 2 text fields. All I want to do is, after validating with JavaScript, send these two string fields in an email to a pre-defined email address. I understand how JavaScript works on the client side; you can respond to user events, etc. And PHP is server-side. What I'm having trouble grasping and figuring out is how do I run PHP functions, etc when I want? I figured out how to use the 'action' attribute of the form to send the data via POST to another PHP page. But this simply opens that page. I don't want to open the page I just want to do some processing and send a message back to the page the user is still on. How do I go about something like that? Thanks.

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  • Decrementing/Incrementing loop variable inside for loop. Is this code smell?

    - by FairDune
    I have to read lines from a text file in sequential order. The file is a custom text format that contains sections. If some sections are out of order, I would like to look for the starting of the next valid section and continue processing. Currently, I have some code that looks like this: for (int currentLineIndex=0; currentLineIndex < lines.Count; currentLineIndex++ ) { //Process section here if( out_of_order_condition ) { currentLineIndex--;//Stay on the same line in the next iteration because this line may be the start of a valid section. continue; } } Is this code smell?

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  • How to visualize real time data on Android? [closed]

    - by matarsak
    I want to build and android app that visualizes real time data (2D animation). I set up a UDP channel that get the data, now I want to visualize it. I know that I can use OpenGL ES, but after a few weeks, I dont think that I'm able to learn that. What about Android Processing? Could it be used for an extensive visualization task like this? or is it limited in some way? I've heard it's not hard learn. Any other options?

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  • Using multiple servers for hosting [on hold]

    - by foo
    I need help understanding the concept of using multiple servers (for hosting at home). More specifically multiple WAMP servers. (I have tried looking online but have found no good resources, maybe i am searching for for the wrong things to answer my questions) Questions -How do multiple servers work together? -Do they all have their independent hard drives storing different information? and if so, does the server dynamically locate files? -How do shell commands get executed? -How do they share the "load"? i.e. processing power, resources? Please tag links to resources so i may use a reference. Cheers!

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  • SlickGrid and asp.net sample or tutorial

    - by user322862
    Hi, I am a newbie using SlickGrid. I have searched some of the sample apps out there but I am still stumped. If anyone can refer a sample or tutorial on SlickGrid using Asp.Net doing the following: Get data via JSON Implement paging, sorting, searching Pass the selected rows key to code behind for processing or call a codebehind function passing the selected rows key. Any help would be appreciated. TIA, TE:-D

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  • RTSP client in android

    - by Vinay
    I am writing a RTSP client in Android. I am able to receive the Responses for all the requests i.e., DESCRIBE it sends back the 200 OK SETUP with transport: RTP/AVP:unicast:client_port=4568:4569 got the 200 OK Message back Sent PLAY, and got the OK Message After that how to get the audio and video frames? I have searched on blogs, but all say to listen at client_port but I am not receiving any packets. Please let me know am I doing correctly.

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  • Problem with cometd and jetty 6 / 7

    - by Ceilingfish
    Hi chaps, I'm trying to get started with cometd (http://cometd.org/) and jetty 6 or 7, but I seem to be having problems. I've got an ant script that packages my code up into a war with the cometd 1.1.1 binaries and jetty binaries that are appropriate to the version of jetty I deploy the war to (so 7.1.2.v20100523 binaries when I deploy to jetty 7.1.2.v20100523 and 6.1.24 when I deploy to 6.1.24). I first tried getting a setup with version 7.1.2.v20100523, but when I tried to deploy I got a very long stack trace sample of which is: 2010-05-26 15:32:12.906:WARN::Problem processing jar entry org/eclipse/jetty/util/MultiPartOutputStream.class java.io.IOException: Invalid resource at org.eclipse.jetty.util.resource.URLResource.getInputStream(URLResource.java:204) at org.eclipse.jetty.util.resource.JarResource.getInputStream(JarResource.java:113) at org.eclipse.jetty.annotations.AnnotationParser$2.processEntry(AnnotationParser.java:575) at org.eclipse.jetty.webapp.JarScanner.matched(JarScanner.java:152) at org.eclipse.jetty.util.PatternMatcher.matchPatterns(PatternMatcher.java:82) at org.eclipse.jetty.util.PatternMatcher.match(PatternMatcher.java:64) at org.eclipse.jetty.webapp.JarScanner.scan(JarScanner.java:75) at org.eclipse.jetty.annotations.AnnotationParser.parse(AnnotationParser.java:587) at org.eclipse.jetty.annotations.AbstractConfiguration.parseWebInfLib(AbstractConfiguration.java:107) at org.eclipse.jetty.annotations.AnnotationConfiguration.configure(AnnotationConfiguration.java:68) at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:992) at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:579) at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:381) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55) at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:36) at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:182) at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:497) at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:135) at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileChanged(ScanningAppProvider.java:77) at org.eclipse.jetty.util.Scanner.reportChange(Scanner.java:490) at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:355) at org.eclipse.jetty.util.Scanner.scan(Scanner.java:306) at org.eclipse.jetty.util.Scanner$1.run(Scanner.java:258) at java.util.TimerThread.mainLoop(Timer.java:512) at java.util.TimerThread.run(Timer.java:462) 2010-05-26 15:32:12.907:WARN::Problem processing jar entry org/eclipse/jetty/util/MultiPartWriter.class java.io.IOException: Invalid resource at org.eclipse.jetty.util.resource.URLResource.getInputStream(URLResource.java:204) at org.eclipse.jetty.util.resource.JarResource.getInputStream(JarResource.java:113) at org.eclipse.jetty.annotations.AnnotationParser$2.processEntry(AnnotationParser.java:575) at org.eclipse.jetty.webapp.JarScanner.matched(JarScanner.java:152) at org.eclipse.jetty.util.PatternMatcher.matchPatterns(PatternMatcher.java:82) at org.eclipse.jetty.util.PatternMatcher.match(PatternMatcher.java:64) at org.eclipse.jetty.webapp.JarScanner.scan(JarScanner.java:75) at org.eclipse.jetty.annotations.AnnotationParser.parse(AnnotationParser.java:587) at org.eclipse.jetty.annotations.AbstractConfiguration.parseWebInfLib(AbstractConfiguration.java:107) at org.eclipse.jetty.annotations.AnnotationConfiguration.configure(AnnotationConfiguration.java:68) at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:992) at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:579) at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:381) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55) at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:36) at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:182) at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:497) at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:135) at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileChanged(ScanningAppProvider.java:77) at org.eclipse.jetty.util.Scanner.reportChange(Scanner.java:490) at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:355) at org.eclipse.jetty.util.Scanner.scan(Scanner.java:306) at org.eclipse.jetty.util.Scanner$1.run(Scanner.java:258) at java.util.TimerThread.mainLoop(Timer.java:512) at java.util.TimerThread.run(Timer.java:462) 2010-05-26 15:32:12.907:WARN::Problem processing jar entry org/eclipse/jetty/util/Attributes.class java.io.IOException: Invalid resource at org.eclipse.jetty.util.resource.URLResource.getInputStream(URLResource.java:204) at org.eclipse.jetty.util.resource.JarResource.getInputStream(JarResource.java:113) at org.eclipse.jetty.annotations.AnnotationParser$2.processEntry(AnnotationParser.java:575) at org.eclipse.jetty.webapp.JarScanner.matched(JarScanner.java:152) at org.eclipse.jetty.util.PatternMatcher.matchPatterns(PatternMatcher.java:82) at org.eclipse.jetty.util.PatternMatcher.match(PatternMatcher.java:64) at org.eclipse.jetty.webapp.JarScanner.scan(JarScanner.java:75) at org.eclipse.jetty.annotations.AnnotationParser.parse(AnnotationParser.java:587) at org.eclipse.jetty.annotations.AbstractConfiguration.parseWebInfLib(AbstractConfiguration.java:107) at org.eclipse.jetty.annotations.AnnotationConfiguration.configure(AnnotationConfiguration.java:68) at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:992) at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:579) at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:381) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55) at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:36) at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:182) at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:497) at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:135) at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileChanged(ScanningAppProvider.java:77) at org.eclipse.jetty.util.Scanner.reportChange(Scanner.java:490) at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:355) at org.eclipse.jetty.util.Scanner.scan(Scanner.java:306) at org.eclipse.jetty.util.Scanner$1.run(Scanner.java:258) at java.util.TimerThread.mainLoop(Timer.java:512) at java.util.TimerThread.run(Timer.java:462) Seemed to go through all the jetty binaries and complain about each class file. When I tried to deploy to 6.1.24 I got org.mortbay.util.MultiException[java.lang.NoClassDefFoundError: org/eclipse/jetty/util/ajax/JSON$Source, java.lang.NoClassDefFoundError: org/eclipse/jetty/util/thread/ThreadPool] at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:656) at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152) at org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) at org.mortbay.jetty.Server.doStart(Server.java:224) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.xml.XmlConfiguration.main(XmlConfiguration.java:985) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.mortbay.start.Main.invokeMain(Main.java:194) at org.mortbay.start.Main.start(Main.java:534) at org.mortbay.start.Main.start(Main.java:441) at org.mortbay.start.Main.main(Main.java:119) My web.xml looks like this: <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5"> <servlet> <servlet-name>cometd</servlet-name> <servlet-class>org.cometd.server.continuation.ContinuationCometdServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>cometd</servlet-name> <url-pattern>/cometd/*</url-pattern> </servlet-mapping> <servlet> <servlet-name>initializer</servlet-name> <servlet-class>uk.co.dubit.nexus.comet.BayeuxInitializer</servlet-class> <load-on-startup>2</load-on-startup> </servlet> <!-- <filter> <filter-name>cross-origin</filter-name> <filter-class>org.eclipse.jetty.servlets.CrossOriginFilter</filter-class> </filter> <filter-mapping> <filter-name>cross-origin</filter-name> <url-pattern>/cometd/*</url-pattern> </filter-mapping> --> </web-app> note cross origin filter is commented out. The class didn't seem to exist when I tried to run on 6.1.24 (which as far as I understand is the correct behaviour, yes?). Sorry for the noob question but does anyone know what I'm doing wrong here? Regards, Tom

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  • Integrating POP3 client functionality into a C# application?

    - by flesh
    I have a web application that requires a server based component to periodically access POP3 email boxes and retrieve emails. The service then needs to process the emails which will involve: Validating the email against some business rules (does it contain a valid reference in the subject line, which user sent the mail, etc.) Analysing and saving any attachments to disk Take the email body and attachment details and create a new item in the database Or update an existing item where the reference matches the incoming email subject line What is the best way to approach this? I really don't want to have to write a POP3 client from scratch, but I need to be able to customize the processing of emails. Ideally I would be able to plug in some component that does the access and retrieval for me, returning arrays of attachments, body text, subject line, etc. ready for my processing... [ UPDATE: Reviews ] OK, so I have spent a fair amount of time looking into (mainly free) .NET POP3 libraries so I thought I'd provide a short review of some of those mentioned below and a few others: Pop3.net - free - works OK, very basic in terms of functionality provided. This is pretty much just the POP3 commands and some base64 encoding, but it's very straight forward - probably a good introduction Pop3 Wizard - commercial / some open source code - couldn't get this to build, missing DLLs, I wouldn't bother with this C#Mail - free - works well, comes with Mime parser and SMTP client, however the comments are in Japanese (not a big deal) and it didn't work with SSL 'out of the box' - I had to change the SslStream constructor after which it worked no problem OpenPOP - free - hasn't been updated for about 5 years so it's current state is .NET 1.0, doesn't support SSL but that was no problem to resolve - I just replaced the existing stream with an SslStream and it worked. Comes with Mime parser. Of the free libraries, I'd go for C#Mail or OpenPOP. I looked at a few commercial libraries: Chillkat, Rebex, RemObjects, JMail.net. Based on features, price and impression of the company I would probably go for Rebex and may in the future if my requirements change or I run into production issues with either of C#Mail or OpenPOP. In case anyone's needs it, this is the replacement SslStream constructor that I used to enable SSL with C#Mail and OpenPOP: SslStream stream = new SslStream(clientSocket.GetStream(), false, delegate(object sender, X509Certificate cert, X509Chain chain, SslPolicyErrors errors) { return true; });

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  • Switching DataSources on a ReportViewer in WinForms

    - by Mike Wills
    I have created a winform for the users to view view the many reports I am creating for them. I have a drop down list with the report name which triggers the appropriate fields to display the parameters. Once those are filled, they press Submit and the report appears. This works the first time they hit the screen. They can change the parameters and the ReportViewer works fine. Change to a different report, and the I get the following ReportViewer error: An error occurred during local report processing. An error has occurred during the report processing. A data source instance has not been supplied for the data source "CgTempData_BusMaintenance". As far as the process I use: I set reportName (string) the physical RDLC name. I set the dataSource (string) as the DataSource Name I fill a generic DataTable with the data for the report to run from. Make the ReportViewer visible Set the LocalReport.ReportPath = "Reports\\" = reportName; Clear the LocalReport.DataSources.Clear() Add the new LocalReport.DataSources.Add(new ReportDataSource(dataSource, dt)); RefreshReport() on the ReportViewer. Here is the portion of the code that setups up and displays the ReportViewer: /// <summary> /// Builds the report. /// </summary> private void BuildReport() { DataTable dt = null; ReportingCG rcg = new ReportingCG(); if (reportName == "GasUsedReport.rdlc") { dataSource = "CgTempData_FuelLog"; CgTempData.FuelLogDataTable DtFuelLog = rcg.BuildFuelUsedTable(fromDate, toDate); dt = DtFuelLog; } else if (reportName == "InventoryCost.rdlc") { CgTempData.InventoryUsedDataTable DtInventory; dataSource = "CgTempData_InventoryUsed"; DtInventory = rcg.BuildInventoryUsedTable(fromDate, toDate); dt = DtInventory; } else if (reportName == "VehicleMasterList.rdlc") { dataSource = "CgTempData_VehicleMaster"; CgTempData.VehicleMasterDataTable DtVehicleMaster = rcg.BuildVehicleMasterTable(); dt = DtVehicleMaster; } else if (reportName == "BusCosts.rdlc") { dataSource = "CgTempData_BusMaintenance"; dt = rcg.BuildBusCostsTable(fromDate, toDate); } // Setup the DataSource this.reportViewer1.Visible = true; this.reportViewer1.LocalReport.ReportPath = "Reports\\" + reportName; this.reportViewer1.LocalReport.DataSources.Clear(); this.reportViewer1.LocalReport.DataSources.Add(new ReportDataSource(dataSource, dt)); this.reportViewer1.RefreshReport(); } Any ideas how to remove all of the old remaining data? Do I dispose the object and recreate it?

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  • Custom RoleProvider with MVC 2.0 webconfig

    - by Farrell
    I have a custom MembershipProvider and a custom RoleProvider. I created the custom MembershipProvider by creating a SimpleMembershipProvider class which implements the MembershipProvider class. After that I changed my web.config and works. So I used the same approach creating a custom RoleProvider. Nothing special, just creating a SimpleRoleProvider class which implements the RoleProvider class. But then when I changed the web.config file and runs the solution I get the following error message: Web.Config <membership defaultProvider="DashboardMembershipProvider"> <providers> <clear/> <add name="SimpleMembershipProvider" type="Dashboard.Web.Controlling.Account.SimpleMembershipProvider" /> </providers> </membership> <roleManager enabled="true" defaultProvider="DashboardRoleProvider"> <providers> <clear/> <add name="DashboardRoleProvider" type="Dashboard.Web.Controlling.Account.DashboardRoleProvider" /> </providers> </roleManager> Configuration Error Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. Parser Error Message: No parameterless constructor defined for this object. Source Error Line 78: <add name="SimpleRoleProvider" Line 79: type="Dashboard.Web.Controlling.Account.SimpleRoleProvider" /> So I searched the web. And tried on the type attribute, which generates the following errors: Configuration Error Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. Parser Error Message: Could not load file or assembly 'Dashboard.Web.Controlling.Account' or one of its dependencies. The system cannot find the file specified. Source Error: Line 78: <add name="SimpleRoleProvider" Line 79: type="Dashboard.Web.Controlling.Account.SimpleRoleProvider,Dashboard.Web.Controlling.Account" /> Any suggestions on how I would be able to get this CustomRoleProvider working? Any help is greatly appreciated!

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  • Access Violation Using memcpy or Assignment to an Array in a Struct

    - by Synetech inc.
    Hi, I wrote a program last night that worked just fine but when I refactored it today to make it more extensible, I ended up with a problem. The original version had a hard-coded array of bytes. After some processing, some bytes were written into the array and then some more processing was done. To avoid hard-coding the pattern, I put the array in a structure so that I could add some related data and create an array of them. However now, I cannot write to the array in the structure. Here’s a pseudo-code example: main() { char pattern[]="\x32\x33\x12\x13\xba\xbb"; PrintData(pattern); pattern[2]='\x65'; PrintData(pattern); } That one works but this one does not: struct ENTRY { char* pattern; int somenum; }; main() { ENTRY Entries[] = { {"\x32\x33\x12\x13\xba\xbb\x9a\xbc", 44} , {"\x12\x34\x56\x78", 555} }; PrintData(Entries[0].pattern); Entries[0].pattern[2]='\x65'; //0xC0000005 exception!!! :( PrintData(Entries[0].pattern); } The second version causes an access violation exception on the assignment. I’m sure it’s because the second version allocates memory differently, but I’m starting to get a headache trying to figure out what’s what or how to get fix this. (I’m currently working around it by dynamically allocating a buffer of the same size as the pattern array, copying the pattern to the new buffer, making the changes to the buffer, using the buffer in the place of the pattern array, and then trying to remember to free the—temporary—buffer.) (Specifically, the original version cast the pattern array—+offset—to a DWORD* and assigned a DWORD constant to it to overwrite the four target bytes. The new version cannot do that since the length of the source is unknown—may not be four bytes—so it uses memcpy instead. I’ve checked and re-checked and have made sure that the pointers to memcpy are correct, but I still get an access violation. I use memcpy instead of str(n)cpy because I am using plain chars (as an array of bytes), not Unicode chars and ignoring the null-terminator. Using an assignment as above causes the same problem.) Any ideas? Thanks a lot.

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  • Common idiom in Java to Scala, traverse/Iterate Java list into Scala list

    - by Berlin Brown
    I am processing a XML document and iterating through nodes. I want to iterate through the nodes and build a new List of some type. How would I do this with Scala: Here is my XML traverse code: def findClassRef(xmlNode: Elem) = { xmlNode\"classDef" foreach { (entry) => val name = entry \ "@name" val classid = entry \ "@classId" println(name + "//" + classid) } } Where the line of println is, I want to append elements to a list.

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