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• Mobile miscellany; 14 April

  Some updates on a few developing stories in the mobile space. First of all, the Palm acquisition. Right now the chaos is only increasing. Mobile consultant Tomi Ahonen gives an excellent overview of all major mobile players and why they would want to acquire Palm — or not. His bet is on Lenovo, with HTC running second. See also this piece which pinpoints Palm’s distribution model (or rather lack thereof) as a serious problem. The Sprint-exclusivity in the US was a bad idea. Meanwhile, Huawei and...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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• Das war die dotnet Cologne 2010

  Als sich am spten Freitagabend hinter mir die Parkplatzschranke des Holiday Inn am Stadtwald in Kln schloss, wurde endgltig klar: das wars. Etliche Monate Vorbereitungszeit, eine wochenlange heie Phase und dann war irgendwie alles ganz schnell vorbei. Zurck blieb ein gutes Gefhl, dass bei all den Strapazen Motivation genug ist, auch 2011 eine dotnet Cologne in Angriff zu nehmen. Der Konferenztag begann rund 16 Stunden vorher mit dem Aufbau der 300 Taschen fr die Teilnehmer und anderen Vorbereitungen...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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• Oracle Keeps Growing Partner Certifications with Addition of McAfee

  - by Ted Davis

  Viruses stink. Whether it’s the common cold virus, Goatpox virus – yes it exists -- or a computer virus, you name it, viruses stink. When it comes to our computer server infrastructure we all want to make sure our servers are secure from any malware out there. Additionally, installation of anti-virus software is a requirement by many governments and for many enterprises both large and small. Because of the growth of Oracle Linux in their customer base, McAfee recently certified their “McAfee VirusScan Enterprise for Linux” on Oracle Linux.  It delivers always-on, real-time anti-virus protection for Linux environments. Its unique, Linux-based on-access scanner constantly monitors the system for potential attacks. While there have been few viruses found on Linux, you can now feel secure running Oracle Linux in your infrastructure with McAfee on top. We are happy to introduce McAfee into the Oracle Linux family of certified applications. 

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• Interface is too empty

  - by Nade Ali

  I have recently installed Ubuntu 12.04 0n my PC without any third-party software (cause i havent been able to get my dial-up to work). When i open Ubuntu after reboot, there is absolutely nothing on the desktop screen except for an 'Untitled' folder at the corner of the screen. There is no menu, no taskbars at the top whatever. I dont know why this is happening. The .iso from which i have booted amd installed Ubuntu is fine. I have already conducted an md5sum test and it was all fine. Looking forward to your response.

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• 302: this blog will be closed

  After nearly 7 years I will discontinue blogging on this site. My resources are limited. You can reach my German blog which is used to support my customers. Looking back to a long an interesting journey ASP.NET by ScottGu That was the reason to attend this site and support Microsoft as much as I can. For that I was honored as ASP.NET MVP- thanks again. Meet Scoot several times. Great guy! Forums I have left NNTP forums a few years ago and now Microsoft closed it- It was my idea ;-) AJAX Was...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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• libgdx - removing the circle outline rendered on Box2d CircleShape

  - by Brett

  How can I remove the outline on the circleshape below.. CircleShape circle = new CircleShape(); circle.setRadius(1f); ... using ... batch.draw(textureRegion, position.x - 1, position.y - 1, 1f, 1f, 2, 2, 1, 1, angle); I use this to set the body for a Box2d collision but I get a silly circle shape around my texture in libGdx, i.e. my textured sprite (ball) has a circle over the top of it with a line running from center along the radius. Any ideas on how to remove the overlying circle lines?

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• Optimistic work sharing on sparsely distributed systems

  - by Asti

  What would a system like BOINC look like if it were written today? At the time BOINC was written, databases were the primary choice for maintaining a shared state and concurrency among nodes. Since then, many approaches have been developed for tasking with optimistic concurrency (OT, partial synchronization primitives, shared iterators etc.) Is there an optimal paradigm for optimistically distributing units of work on sparsely distributing systems which communicate through message passing? Sorry if this is a bit vague. P.S. The concept of Tuple-spaces is great, but locking is inherent to its definition. Edit: I already have a federation system which works very well. I have a reactive OT system is implemented on top of it. I'm looking to extend it to get clients to do units of work.

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• Include Method Extension for IObjectSet What about the mocks?

  Eager loading with Entity Framework depends on the special ObjectQuery.Include method. We’ve had that from Day 1 (first version of ef). Now we use ObjectSets in EF4 which inherit from ObjectQuery (thereby inheriting Include) and also implement IObjectSet. IObjectSet allows us to break the queries apart from ObjectQuery and ObjectContext so we can write persistent ignorant, testable code. But IObjectSet doesn’t come with the Include method and you have to create an extension method to...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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• How to get working cups command line tools on Server 14.04

  - by Nick

  It looks like some of the commands like lpr and lprm have broken versions that don't work with cups. These commands worked properly on 10.04. lpr for cups has an -o option, but no lpr is intalled when cups is installed, and the lpr installed with apt-get install lpr does not have the -o option and does not appear to be the cups version of lpr. man lpr shows BSD General Commands Manual at the top, where man lpr on the Ubuntu 10.04 server said Apple, inc in the same spot. which leads me to believe the "wrong" lpr is in the "lpr" package or package names got moved around. There is also a lprng package, but trying to install it wants to remove cups and cups-client. lprm also returns lprm: PrinterName: unknown printer when PrinterName is in fact a valid printer installed with cups and does appear in lpstat -t. How do I get the proper cups versions of lpr working on Server 14.04?

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• IE9 - HTML5, Hardware Accelerated: First IE9 Platform Preview Available for Developers

  At the MIX conference, we demonstrated how the standard web patterns that developers already know and use broadly run better by taking advantage of PC hardware through IE9 on Windows. First, we showed IE9s new script engine, internally known as Chakra We shared the data and framework that informed our approach, and demonstrated better support for several standards: HTML5, DOM, and CSS3. We showed hardware-accelerated SVG support in IE9. Finally, we announced the availability of...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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• A Closed Mind Killed the Retail Star

  Im on the plane flying back to New Zealand and Im astonished how quickly things have changed since I was last in the US. This trip I visited LA, Las Vegas and San Francisco and I was overwhelmed by the change that I witnessed in 12 short months. This morning following my memory map I headed towards the large  CompuServe electronics store in downtown San Francisco where my wife and I brought a digital camera in 2006. Homing in on the spot I was disappointed to see it had turned into yet another...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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• MongoDB, 5 characters, and a free job board

  Today I came across shapado.com - a StackExchange-like open source system running on ruby and mongodb. It took a couple clicks and a few keystroke, and I had http://jobs.shapado.com/ setup and running for free. It was a quasi joke at first, but I figured it might be helpful to get this up and running. So, if you have any jobs to post, or would like to request work, please post away :) You can also set up your own, or download the source from the seemingly unreliable gitorious.    ...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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• Gilbane Conference San Francisco 2010

  I attended the Gilbane Conference San Francisco 2010 today and did a short presentation on: Open Source Tools That are Changing the Content Technology Landscape Open Source tools are dramatically changing our perceptions of software and how we invest in tools for content creation, management and delivery. Open source tools are created more cheaply by a broad team of developers, but also may require strong support organizations to make them work, so they are never free. This session will examine...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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• IKVM 0.42 Update 1 Released

  I've promoted 0.42 Update 1 RC 2 to an official release. Changes (Update 1 RC 0 + RC 1 + RC 2): Added fix to mangle all artificial type names if they clash with Java type names in the same assembly. Fix for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41696. Fixed exception sorter to be correct when invoked with two references to the same object. Fix for bug #2946842. Fixed ikvmstub to not emit stubs for generic...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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• IKVM 0.42 Update 1 Released

  I've promoted 0.42 Update 1 RC 2 to an official release. Changes (Update 1 RC 0 + RC 1 + RC 2): Added fix to mangle all artificial type names if they clash with Java type names in the same assembly. Fix for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41696. Fixed exception sorter to be correct when invoked with two references to the same object. Fix for bug #2946842. Fixed ikvmstub to not emit stubs for generic...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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• Dirty Dirty Silverlight Hack... - Silverlight 4 Hack: Use Native/Desktop CLR Without COM Registratio

  Here is a hack of the month. Jeremiah is probably my favoriate Silverlight Prodagy and he has done it again with this wonderful hack, 'Use Native/Desktop CLR Without COM Registration' I like the first line, "WARNING: Information and code here can easily be abused. Please do not use it as a crutch in application planning, but more for utter despair or experimentation. Thus I wrote this blog post from that perspective."Certainly Jeremiah's code can be abused but what is really interesting to me is...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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• Pre-Populate the AppFabric Cache

  When I start talking to people about the caching functionality that is part of Windows Server AppFabric I am usually asked "What is the AppFabric Cache?"  The MSDN page at http://msdn.microsoft.com/en-us/library/ee790954.aspx provides a great overview (below) as well as additional information.  The Cache is defined as: "Windows Server AppFabric caching features use a cluster of servers that communicate with each other to form a single, unified application cache system. As a distributed...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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• Unity doesn't autostart on second X screen

  - by Nonoo

  I have two Nvidia cards both with 2 heads and both configured as TwinView, so I have Screen0 and Screen1 in my xorg.conf. ccsm sees both screens (displays them in the Screens drop-down at the top left), but Unity starts only on Screen0 by default. The displays on Screen1 only show the default white screen and default X mouse cursor, when I hover over them. Is this the normal, expected behavior? Can I start Unity on Screen1 automatically without running custom shell scripts (like DISPLAY=:0.1 compiz --replace)?

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• How to Get Myself Up to Speed in Building a Java Web App

  - by Damian Wells

  I'm a new developer at a fairly large company and I'm working on a Java Web Application with a senior developer there. The Web App is built on top of an IBM stack (RAD, DB2, WebSphere) and basically uses JSPs and Servlets. The Web App is an internal tool to be used by employees to manage data coming from Excel files. So, there are lots of database interaction going around like SQL commands. My question is: I don't know much about JavaEE as a whole and only know a little about JSPs and Servlets and I would like to get myself up to speed so I can understand and contribute to the Web App as fast as I could. What resources (tutorials, links, etc) should I be looking at? Am I supposed to get a book about JavaEE or something that focuses just on JSPs and Servlets?

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• Gilbane Conference San Francisco 2010

  I attended the Gilbane Conference San Francisco 2010 today and did a short presentation on: Open Source Tools That are Changing the Content Technology Landscape Open Source tools are dramatically changing our perceptions of software and how we invest in tools for content creation, management and delivery. Open source tools are created more cheaply by a broad team of developers, but also may require strong support organizations to make them work, so they are never free. This session will examine...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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• Node.js Or servlets?

  - by Nilesh

  I have heard a lot and read about the Javascript server side language i.e Node.js, and saw many comparisons in favor of Node. I don't understand what makes it better or faster, or how it even relates to something as mature as Java Servlets. But Servlets are built on top of a multithreaded programming language as opposed to Node.js. Then how can node.js be faster? If suppose 1000K users query for a database records, then shouldn't Node.js be slower than Servlets. Also Don't servlets have better security compared to Node.js?

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• Managed Service Accounts (MSA) and Virtual Accounts

  Windows Server 2008 R2 and Windows 7 have two new types of service accounts called Manage Service Accounts (MSA) and Virtual Accounts.  These make long term management of service account users, passwords and SPNs much easier. Consider the environment at OrcsWeb.  As a PCI Compliant hosting company, we need to change all security related passwords every 3 months.  This is a substantial undertaking each time because of hundreds of passwords spread throughout our enterprise.  We...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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• Silverlight TV 23: MVP Q&A with WWW (Wildermuth, Wahlin and Ward)

  John interviews a panel of 3 well known Silverlight leaders including Shawn Wildermuth, Dan Wahlin, and Ward Bell at the Silverlight 4 launch event. The guest panel answers questions sent in from Twitter about the features in Silverlight 4, thoughts on MVVM, and the panel members' experiences developing Silverlight. This is a great chance to hear from some of the leading Silverlight minds. These guys are all experts at building business applications with Silverlight. Relevant links: John's Blog...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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• SP1 of RadControls for WinForms Q1 2010 released, featuring VS2010 and Client Profile support

  As always, Telerik's plans were closely aligned with Microsoft's release schedule, and we were dedicated to provide VS2010 support even before Visual Studio 2010 was officially launched. Now that the first VS2010 launch event is over, here comes the first of many Telerik Service Packs to support VS2010. This RadControls for WinForms release is the first to provide support for the Client Profile, introduced with .NET3.5, and now default when starting new windows forms projects with VS2010. The Client Profile is a smaller version of the.NET Framework that includes only the assemblies needed for deploying client-based applications, which in turn reduces the size of the application. Basically, the Design time classes are excluded from the Client Profile (CP), because they are only needed for designing and not for running an application. In Q1 2010 SP1 we have moved the designer classes from the run-time assemblies to a new dedicated assembly (Telerik.WinControls.UI.Design.dll), ...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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• Handling Players, enemies and attacks in HTML5

  - by Chris Morris

  I'm building a simple (currently) game with free roaming player and monsters on a map built by a 2D grid. I've been looking at the methods for implementing characters and enemies onto the screen and I've seen two seperate methods for doing this online. Drawing the player onto the screen canvas directly and refreshing the entire screen every FPS tick. Having a separate canvas to handle the player and moving the player canvas on top of the screen canvas via absolute positioning. I can see some pros and cons of both methods but what is generally the best method for doing this? I assume the second due to not having to drain resources by refreshing the map when the user is not moving, but the type of game will generally have constant movement.

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