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  • A walkthrough to Application State

    This artcile discuss about the Application Level events,Application state with a simple example...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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  • HTML5 Game (Canvas) - UI Techniques?

    - by Jason L.
    Hi! I'm in the process of building a JavaScript / HTML5 game (using Canvas) for mobile (Android / iPhone/ WebOS) with PhoneGap. I'm currently trying to design out how the UI and playing board should be built and how they should interact but I'm not sure what the best solution is. Here's what I can think of - Build the UI right into the canvas using things like drawImage and fillText Build parts of the UI outside of the canvas using regular DOM objects and then float a div over the canvas when UI elements need to overlap the playing board canvas. Are there any other possible techniques I can use for building the game UI that I haven't thought of? Also, which of these would be considered the "standard" way (I know HTML5 games are not very popular so there probably isn't a "standard" way yet)? And finally, which way would YOU recommend / use? Many thanks in advance!

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  • To canvas, or not to canvas, when building browser-based games?

    - by Letharion
    Background: I have extensive development background, but the last time I coded a game was many years ago. My Javascript skills are quite limited, and I intend to improve them by building a simple game — Tetris, Pac-man, or something of that complexity level. Question: It seems to me that a fundamental choice I need to make is whether I should render on a <canvas> element or not. With a canvas, I have basic tools for rendering points, lines, and more complex things on top of that. Presumably there are, or will be, also various frameworks to help with this. Without a canvas, I could keep my objects in the DOM-tree, like a regular webpage, only quite complex, with many overlapping elements. Is one approach better than the other? Are they mutually exclusive? How do I know which to pick?

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  • Oracle Open World ?? 2012 ???????

    - by user13136722
    ????????????? Oracle OpenWorld Tokyo 2012 | ORACLE® JAPAN ????????·?????????????????????????????????????????????? ?????grep?????????????????????????????????????????? ???????????????????????????????????????XML??DOM???????????? $ curl -s https://oj-events.jp/public/application/add/32?ss_ad_code=|sed 's/\<td\>/tr/g;s/span><br \/>/span>/;s/<div>\[\(.*\)\][<br />]*<\/div>/[\1]/'|w3m -dump -T text/html -cols 512|grep -A 2 '\[ \]' |sed -n '/[0-9]:[0-9]/,$p'|head -20 K1-01 9:00-11:15 ??????????[ ] ?? ENGINEERED FOR INNOVATION ?????????????? -- [ ]S1-03 11:50-12:35 ????????????????????CIO???IT??????????? ????? -- [ ]S1-08 11:50-12:35 ????????????????????????????????? ?????????????? -- [ ]S1-11 13:00-13:45 [??????·????]??????????????????????????????-??????????????????AIST??????????Oracle Exadata ????????? -- [ ]S1-13 13:00-13:45 Oracle WebLogic Server 12c ???????????Java???:???????Java EE??? ????·???????? -- ???????? head ????????????????????????? ???????????? ????????????? 7113 ????????????

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  • vJUG: Worldwide Virtual JUG Created

    - by Tori Wieldt
    London Java Community leader and technical evangelist Simon Maple has created a Meetup called vJUG, with aim toward connecting Java Developers in the virtual world. The aim for vJUG is: Get technical leaders from around the world to present to the vJUG members (without travel cost concerns!). Work with local JUGs to provide worldwide content to their members and help JUGs present to a worldwide audience. Provide content to devs without access to a local JUG. Be a hub that will stream content from other JUG sessions live.  The vJUG is not intended to replace local JUG efforts. "The vJUG can never be, and will never be, as vibrant and valuable to its members as a proper local JUG can. Why? Because the true value in JUG meetings are the face to face interactions and personal networking," said Maple. "However, many people do not have access to a really active JUG with great speakers and awesome content. Or, like me, the closest JUG is about 90 mins away." WebEx and Google Hangouts are great, Maple explained, he hopes vJUG will provide more coordination of online events.  Maple hopes that in the future, vJUG will provide An Events calendar with reminders and links to up coming meetings. A Newsletter with what's coming up and links to previous sessions. Coordination of links to IRC channels which are active during presentations (to create a feeling of virtual community). Comments and forums around sessions and presentations A place where physical JUGs could advertise their sessions (i.e. a NY JUG event) to a worldwide audience, when streamed, via an event that people can sign up to. A common Webex or Hangout. Maple encourages both people who need a JUG and existing JUG members to join vJUG. "I'm looking forward to talking with many of you one to get members, speakers, and JUG support!" Join vJUG now! (I sense a need for a logo...) 

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  • MSDN Simulcast Event: ASP.NET Web Platform Firestarter!

    Join your Microsoft Developer Evangelists on December 9 for this free event that will get you up to speed with Microsoft ASP.NET web development, going from zero to sixty in one day! By the end of the day, you’ll be familiar with latest advances and have a solid understanding of ASP.NET web development options. See our webcasts page for more information on this and other updcoming events, or download on-demand sessions.

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  • How to filter a funnel by product?

    - by Ryan
    Let's say I'm tracking a conversion like the following: View product > Customize > Finish order When I push the the above events, I also push a product ID and name attached to it, hoping that I could segment by that, but I can't figure out how. I want to view the conversion per product, not generally. Does anyone know if this is possible with Google Analytics? If not, please suggest other solutions.

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  • SQLAuthority News Public Training Classes In Hyderabad 12-14 May Microsoft SQL Server 2005/2008 Qu

    After successfully delivering many corporate trainings as well as the private training Solid Quality Mentors, India is launching the Public Training in Hyderabad for SQL Server 2008 and SharePoint 2010. This is going to be one of the most unique and one-of-a-kind events in India where Solid Quality Mentors are offering public classes. I will [...]...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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  • Increase Availability for Data Center Virtual Environments

    - by Antoinette O'Sullivan
    With Oracle VM, you can increase availability and add flexibility for data center virtual environments. To get started, take training on Oracle VM Server for x86 and Oracle VM Server for SPARC as appropriate for your systems. You can take these live instructor-led courses from your own desk as a live-virtual event or travel to an education center for an in-class event. The Oracle VM Administration: Oracle VM Server for x86 course, in 3 days, teaches you about creating NFS and iSCI repositories, migration, cloning and exercising high availabillity. In-class events already on the schedule include:  Location  Date  Delivery Language  Zagreb, Croatia  11 November 2013  Croatian  Prague, Czech Republic  21 October 2013  Czech  Ballerup, Denmark  26 August 2013  English  Bordeaux, France  18 September 2013  French  Paris, France  9 October 2013  French  Strasbourg, France  11 September 2013  French  Hamburg, Germany  30 Septemeber 2013  German  Munich, Germany  28 October 2013  German  Budapest, Hungary  9 September 2013  Hungarian  Riga, Latvia  30 September 2013  Latvian  Oslo, Norway  16 September 2013  English  Warsaw, Poland  28 October 2013  Polish  Bucharest, Romania  14 October 2013  English  Istanbul, Turkey  23 December 2013  Turkish  Indonesia, Jakarta  19 August 2013  English  Canberra, Australia  4 November 2013  English  Melbourne, Australia  6 November 2013  English  Sydney, Australia  25 November 2013  English  San Francisco, CA, United States  16 September 2013  English  Roseville, MN, United States  21 October 2013  English  St Louis, MO, United States  11 November 2013  English  Reston, VA, United States  31 July 2013  English  Buenos Aires, Argentina  21 August 2013  Spanish The Oracle VM Server for SPARC: Installation and Configuration course, in 2 days, teaches you about configuring control and service domains, creating guest domains, using virtual disks and networks, and migration. In-class events already on the schedule include:  Location  Date  Delivery Language  Budapest, Hungary  12 September 2013  Hungarian  Prague, Czech Republic  9 September 2013  Czech  Colombes, France  7 October 2013  French  Stuttgart, Germany  28 October 2013  German  Madrid, Spain  5 September 2013  Spanish  Istanbul, Turkey 30 September 2013  Turkish   Petaling Jaya, Malaysia 15 August 2013  English   Singapore 5 August 2013  English   Cnaberra, Australia  12 August 2013 English  Melbourne, Australia  30 October 2013 English  Sydney, Australia  26 August 2013 English To register for a course or to learn more about Oracle's virtualization curriculum, go to http://education.oracle.com/virtualization.

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  • LAG function – practical use and comparison to old syntax

    - by Michael Zilberstein
    Recently I had to analyze huge trace – 46GB of trc files. Looping over files I loaded them into trace table using fn_trace_gettable function and filters I could use in order to filter out irrelevant data. I ended up with 6.5 million rows table, total of 7.4GB in size. It contained RowNum column which was defined as identity, primary key, clustered. One of the first things I detected was that although time difference between first and last events in the trace was 10 hours, total duration of all sql...(read more)

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  • LAG function – practical use and comparison to old syntax

    - by Michael Zilberstein
    Recently I had to analyze huge trace – 46GB of trc files. Looping over files I loaded them into trace table using fn_trace_gettable function and filters I could use in order to filter out irrelevant data. I ended up with 6.5 million rows table, total of 7.4GB in size. It contained RowNum column which was defined as identity, primary key, clustered. One of the first things I detected was that although time difference between first and last events in the trace was 10 hours, total duration of all sql...(read more)

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  • SQL Relay 2012

    This May brings SQL Server experts to your locality; full day seminars in Edinburgh, Manchester, Birmingham, Bristol and London. Overview sessions from Microsoft in the morning, Deep Dive sessions in the afternoon from SQL Server MVP's and evening community events. Get smart with SQL Backup ProGet faster, smaller backups with integrated verification.Quickly and easily DBCC CHECKDB your backups. Learn more.

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  • Analytics for Windows 8 apps using Markedup

    - by nmarun
    The Windows 8 store does provide some analytics information to you in terms of downloads by market or by age group, ratings, in-app purchases. I find that a little too limiting. What if I want to know what page my users are spending most of their time or what events are being raised more frequently or are my users calling my app through the search contract I implemented or how many times was the share contract called. To answer questions like this, you need a more mature analytics framework. Markedup...(read more)

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  • Best game engine 2D for iOS

    - by Adelino
    which is the best 2D game enginefor iOS? I really need a game engine that allows me to modify the game code because I need to control the multi-touch events. I have a framework that detects the gesture that the player makes and I need to test this gesture recognizer in a game, so I have to have the freedom to change the game code. I don't want anything like GameSalad where you can't control anything. Thanks in advance.

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  • Determining whether a visitor reached two different pages in one visit

    - by Shaun
    I have a funnel that I would like to track. Tracking this funnel won't work with the default "goal funnel" tracking in Google due to the fact that I am mixing events and pageviews. As such, I've created a series of reports: Visits to demo pages - An inclusion filter on "Page". Triggers an Event on these pages - An inclusion filter on "Page" and "Event Category". Does not bounce - An inclusion filter on "Page" and an exclusion filter on "Exit Page" for these same pages. Reach our storefront - ?? Purchase something - An inclusion filter on "Page" and a report that shows "Transactions". At a basic level, I need to track users who reached demo pages, then reached any page on our store. Intuitively, I created a segment, used two inclusive "Page" filters (one for the demo pages and one for any page in our store), and combined them with an "AND" operator. I thought this was working until I tried to do the same thing in a dashboard widget and on a custom report. When I tried the same thing in those areas, I got zero results. I figured this might be because widgets and custom report filters function differently from segment filters (the options are different for all of them), so I tried applying my "demo page && store page" segment to a report that gave me a general page list. All I saw was a list of the specific pages. I tried simplifying things by creating a custom report that showed all visits to store pages, then applied a segment that filtered for users who visited demo pages. This got me the same numbers as my "demo page && store page" segment, but showed a list of demo pages. This has led me to believe that the "demo page && store page segment" approach and the "demo segment && store report" functionally behave the same. However, this experience has left me questioning whether they're giving me what I want. Are these methods showing me all users who reached both sets of pages? Is there a better/easier/more standard way of doing this aside from looking at visitor flow reports? I'm trying to avoid a combination of custom variables/events and using the horizontal funnel approach since it would consume a large number of our limited goals and seems more complicated than is necessary for tracking this funnel.

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  • Interested in going to the cloud then this might be useful

    - by simonsabin
    Bob Duffy is doing an afternoon seminar on Azure. It will provide an introduction to the Azure platform, and in particular SQL Azure, show tools and methodologies to migrate on premise databases into the cloud, using a sample application and database and finally it will detail some of the Azure specific features that enable massive scale OLTP solutions such as federations. http://www.prodata.ie/Events/2012/SQL-Azure_and_the_Cloud.aspx...(read more)

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  • 2d, Top-down map with different levels

    - by Ktash
    So, I'm creating a 2d, top down, sprite based (tiled) game, and right now I'm working on maps (well, a map editor at the moment, but it will be creating my maps, so basically the same thing). The scenario So, I'm thinking about efficiency and creating a map in pieces. In each piece, I plan on having 'layers'. Basically, I plan on rendering it down to a 'below hero' level, and an 'above hero' level, with the hero rendered in between obviously. There will likely also be a 'on level with hero' layer, but I'm not quite there yet. Not even worrying about events or interaction yet. Just looking to get a hero on the screen. Now for movement, I obviously need to know what tiles can be moved and in what direction. My plan at the moment is each tile getting 8 bits (4 'can enter in direction' bits, 4 'can leave in direction'). This will allow me to limit movement and even allow one way directional movement. The dilemma This works great for a lot of scenarios. It will allow me to store a map in essentially 3 layers, a string, and gives me flexibility going forward. However, I can't create maps that themselves have layers. A good example is a bridge where the user can go under or over the bridge without invalid moves being allowed. I can't create a platform and allow movement underneath. These are things I would like to be able to include in my game. My idea In theory, I could allow multiple hero layers and then allow multiple sets of 'below' and 'above' layers (or sandwich layers). But this complicates my system, and makes movement between maps potentially tricky (If the hero is on the third layer at the edge of a map, but that corresponds to the second layer on the other map, how can I allow or disallow movement). My question Is there a better way to manage multiple maps with multiple levels like this where a users level may be 'connected' on different levels on different maps? Or even... Am I doing this the hard way? Is there a more standard way to handle top-down 2d tiled maps that I am just not aware of? Things to note or that might be helpful This will be done in Javascript (transferred around in JSON) State will need to be transferred quickly, so a map-id and x/y/direction should be enough to get me a boolean 'can move' value Maps will not be standard sized (though they will be in a certain number of tiles) Making an editor tool so that I can have others help, so something that I can create in a tool would be helpful 'Teleportation' locations will likely need to exist to get into building maps and to and from different map sets (which will not necessarily be connected), but have not been created yet (lumping in with events at the moment).

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  • I have data that sends in "bursts" of 100 records with a significant delay. How do I structure my classes for multithreading?

    - by makerofthings7
    My datasource sends information in 100 batches of 100 records with a delay of 1 to 3 seconds between batches. I would like to start processing data as soon as it's received, but I'm not sure how to best approach this. Some ideas I've been playing with include: yield Concurrent Dictionary ConcurrentDictionary with INotifyProperyChanged Events etc. As you can see I'm all over the place, and would appreciate some tested guidance on how to approach this

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  • JavaScript: scroll position (Webkit engine) [migrated]

    - by Julien
    I'm currently trying to use JavaScript to find out how far down the page the user has scrolled; for Firefox 8.0, the keyword is pageYOffset. To say things mechanically: The page has a certain height. In Firefox, the useful object is document.documentElement.scrollHeight. The browser's visible area also has a certain height. In Firefox, the object is window.innerHeight; in IE8, document.documentElement.clientHeight. I need to know where the user is in the page vertically; in other words, how many pixels down the page the user has scrolled. Does Webkit have a DOM object that refers to the current scroll position? Thank you.

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  • How to chain actions/animations together and delay their execution?

    - by codinghands
    I'm trying to build a simple game with a number of screens - 'TitleScreen', 'LoadingScreen', 'PlayScreen', 'HighScoreScreen' - each of which has it's own draw & update logic methods, sprites, other useful fields, etc. This works well for me as a game dev beginner, and it runs. However, on my 'PlayScreen' I want to run some animations before the player gets control - dropping in some artwork, playing some sound effects, generally prettifying things a little. However, I'm not sure what the best way to chain animations / sound effects / other timed general events is. I could make an intermediary screen, 'PrePlayScreen', which simply has all of this hardcoded like so: Update(){ Animation anim1 = new Animation(.....); Animation anim2 = new Animation(.....); anim1.Run(); if(anim1.State == AnimationState.Complete) anim2.Run(); if(anim2.State == AnimationState.Complete) // Load 'PlayScreen' screen } But this doesn't seem so great - surely their must be a better way? I then thought, 'Hey - an AnimationManager! That'd be awesome!'. But then that creeping OOP panic set in as I thought about it some more. If I create the Animation in my Screen, then add it to the AnimationManager (which may or may not be a GameComponent hooked up to Update/Draw), how can I get 'back' to it? To signal commands like start / end / repeat? I'd still need to keep a reference to the object in my Screen so that I could still communicate with it once it's buried in the bosom of a List in my AnimationManager. This seems bad. I've also tried using events - call 'Update' on all the animations in the PlayScreen update loop, but crucially all of the animations have a bool flag ('Active') which determines whether they should begin. The first animation has this set to 'true', all others 'false'. On completion the first animation raises an event, which sets animation 2's bool flag to true (and so it then runs). Once animation 2 is complete another 'anim complete' event is raised, and the screen state changes. Considering the game I'm making is basically as simple as it gets I know I'm overthinking this... it's just the paradigm shift from web - game development is making me break out in a serious case of the stupids.

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  • Tips For SEO Friendly Press Releases

    With the emergent commercial nature of the web it is becoming harder to get quality one way inbound links. One of the best ways of achieving incoming links is by submitting free or cheap press releases that help you build link justice without spending lots of money. An SEO press release is primary way to deliver news of new events taking place within your company.

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