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  • Why some video posts from the same blog appear in google with thumbs, while others do not?

    - by jayarjo
    We own media blog - which is basically a big collection of various videos streamed through our branded player. Interesting thing is that some of our posts show up in google search results with a thumb denoting that the post in question is in fact a video. But more often they are not. We basically wonder why? What does affect it and can we control it somehow? All posts (their single pages) have facebook og meta tags in place.

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  • How to implement explosion in OpenGL with a particle effect?

    - by Chan
    I'm relatively new to OpenGL and I'm clueless how to implement explosion. So could anyone give me some ideas how to start? Suppose the explosion occurs at location $(x, y, z)$, then I'm thinking of randomly generate a collection of vectors with $(x, y, z)$ as origin, then draw some particle (glutSolidCube) which move along this vector for some period of time, says after 1000 updates, it disappear. Is this approach feasible? A minimal example would be greatly appreciated.

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  • How To Use Photoshop Plugins On Linux

    <b>Ghabuntu:</b> "On Linux, the Gimp has its own collection of plugins and scripts, but to satisfy the folks who look down upon Linux and Gimp, I will present not one but two ways to do the work of Photoshop plugins in Linux."

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  • SEO Methodology - Link-Building

    With many companies enticing in advertising wars with a view to win over the overwhelming majority of the Internet plausible market, it is easy to deduce the intensity of the competition. In the end, the Web and its community of knowledge develop exponentially through the minute, whilst the increase in the collection of customers roughly takes a bit slower.

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  • MVC Razor Engine For Beginners Part 1

    - by Humprey Cogay, C|EH, E|CSA
    I. What is MVC? a. http://www.asp.net/mvc/tutorials/older-versions/overview/asp-net-mvc-overview II. Software Requirements for this tutorial a. Visual Studio 2010/2012. You can get your free copy here Microsoft Visual Studio 2012 b. MVC Framework Option 1 - Install using a standalone installer http://www.microsoft.com/en-us/download/details.aspx?id=30683 Option 2 - Install using Web Platform Installer http://www.microsoft.com/web/handlers/webpi.ashx?command=getinstallerredirect&appid=MVC4VS2010_Loc III. Creating your first MVC4 Application a. On the Visual Studio click file new solution link b. Click Other Project Type>Visual Studio Solutions and on the templates window select blank solution and let us name our solution MVCPrimer. c. Now Click File>New and select Project d. Select Visual C#>Web> and select ASP.NET MVC 4 Web Application and Enter MyWebSite as Name e. Select Empty, Razor as view engine and uncheck Create a Unit test project f. You can now view a basic MVC 4 Application Structure on your solution explorer g. Now we will add our first controller by right clicking on the controllers folder on your solution explorer and select Add>Controller h. Change the name of the controller to HomeController and under the scaffolding options select Empty MVC Controller. i. You will now see a basic controller with an Index method that returns an ActionResult j. We will now add a new View Folder for our Home Controller. Right click on the views folder on your solution explorer and select Add> New Folder> and name this folder Home k. Add a new View by right clicking on Views>Home Folder and select Add View. l. Name the view Index, and select Razor(CSHTML) as View Engine, All checkbox should be unchecked for now and click add. m. Relationship between our HomeController and Home Views Sub Folder n. Add new HTML Contents to our newly created Index View o. Press F5 to run our MVC Application p. We will create our new model, Right click on the models folder of our solution explorer and select Add> Class. q. Let us name our class Customer r. Edit the Customer class with the following code s. Open the HomeController by double clickin HomeController of our Controllers folder and edit the HomeControllerusing System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc;   namespace MyWebSite.Controllers {     public class HomeController : Controller     {         //         // GET: /Home/           public ActionResult Index()         {             return View();         }           public ActionResult ListCustomers()         {             List<Models.Customer> customers = new List<Models.Customer>();               //Add First Customer to Our Collection             customers.Add(new Models.Customer()                     {                         Id = 1,                         CompanyName = "Volvo",                         ContactNo = "123-0123-0001",                         ContactPerson = "Gustav Larson",                         Description = "Volvo Car Corporation, or Volvo Personvagnar AB, is a Scandinavian automobile manufacturer founded in 1927"                     });                 //Add Second Customer to Our Collection             customers.Add(new Models.Customer()                     {                         Id = 2,                         CompanyName = "BMW",                         ContactNo = "999-9876-9898",                         ContactPerson = "Franz Josef Popp",                         Description = "Bayerische Motoren Werke AG,  (BMW; English: Bavarian Motor Works) is a " +                                       "German automobile, motorcycle and engine manufacturing company founded in 1917. "                     });                 //Add Third Customer to Our Collection             customers.Add(new Models.Customer()             {                 Id = 3,                 CompanyName = "Audi",                 ContactNo = "983-2222-1212",                 ContactPerson = "Karl Benz",                 Description = " is a multinational division of the German manufacturer Daimler AG,"             });               return View(customers);         }     } } t. Let us now create a view for this Class, But before continuing Press Ctrl + Shift + B to rebuild the solution, this will make the previously created model on the Model class drop down of the Add View Menu. Right click on the views>Home folder and select Add>View u. Let us name our View as ListCustomers, Select Razor(CSHTML) as View Engine, Put a check mark on Create a strongly-typed view, and select Customer (MyWebSite.Models) as model class. Slect List on the Scaffold Template and Click OK. v. Run the MVC Application by pressing F5, and on the address bar insert Home/ListCustomers, We should now see a web page similar below.   x. You can edit ListCustomers.CSHTML to remove and add HTML codes @model IEnumerable<MyWebSite.Models.Customer>   @{     Layout = null; }   <!DOCTYPE html>   <html> <head>     <meta name="viewport" content="width=device-width" />     <title>ListCustomers</title> </head> <body>     <h2>List of Customers</h2>     <table border="1">         <tr>             <th>                 @Html.DisplayNameFor(model => model.CompanyName)             </th>             <th>                 @Html.DisplayNameFor(model => model.Description)             </th>             <th>                 @Html.DisplayNameFor(model => model.ContactPerson)             </th>             <th>                 @Html.DisplayNameFor(model => model.ContactNo)             </th>         </tr>         @foreach (var item in Model) {         <tr>             <td>                 @Html.DisplayFor(modelItem => item.CompanyName)             </td>             <td>                 @Html.DisplayFor(modelItem => item.Description)             </td>             <td>                 @Html.DisplayFor(modelItem => item.ContactPerson)             </td>             <td>                 @Html.DisplayFor(modelItem => item.ContactNo)             </td>                   </tr>     }         </table> </body> </html> y. Press F5 to run the MVC Application   z. You will notice some @HTML.DisplayFor codes. These are called HTML Helpers you can read more about HTML Helpers on this site http://www.w3schools.com/aspnet/mvc_htmlhelpers.asp   That’s all. You now have your first MVC4 Razor Engine Web Application . . .

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  • Automatic Maintenance Jobs in every PDB? New SPM Evolve Advisor Task in Oracle 12.1.0.2

    - by Mike Dietrich
    A customer checking out our slides from the OTN Tour in August 2014 asked me a finicky question the other day: "According to the documentation the Automatic SQL Tuning Advisor maintenance task gets executed only within the CDB$ROOT, but not within each PDB - but the slides are not clear here. So what is the truth?" Ok, that's good question. In my understanding all tasks will get executed within each PDB - that's why we recommend (based on experience) to break up the default maintenance windows when using Oracle Multitenant. Otherwise all PDBs will have the same maintenance windows, and guess what will happen when 25 PDBs start gathering object statistics at the same time ... The documentation indeed says: Automatic SQL Tuning Advisor data is stored in the root. It might have results about SQL statements executed in a PDB that were analyzed by the advisor, but these results are not included if the PDB is unplugged. A common user whose current container is the root can run SQL Tuning Advisor manually for SQL statements from any PDB. When a statement is tuned, it is tuned in any container that runs the statement. This sounds reasonable. But when we have a look into our PDBs or into the CDB_AUTOTASK_CLIENT view the result is different from what the doc says. In my environment I did create just two fresh empty PDBs (CON_ID 3 and 4): SQL> select client_name, status, con_id from cdb_autotask_client; CLIENT_NAME                           STATUS         CON_ID------------------------------------- ---------- ----------auto optimizer stats collection       ENABLED             1sql tuning advisor                    ENABLED             1auto space advisor                    ENABLED             1auto optimizer stats collection       ENABLED             4sql tuning advisor                    ENABLED             4auto space advisor                    ENABLED             4auto optimizer stats collection       ENABLED             3sql tuning advisor                    ENABLED             3auto space advisor                    ENABLED             3 9 rows selected. I haven't verified the reason why this is different from the docs but it may have been related to one change in Oracle Database 12.1.0.2: The new SPM Evolve Advisor Task ( SYS_AUTO_SPM_EVOLVE_TASK) for automatic plan evolution for SQL Plan Management. This new task doesn't appear as a stand-alone job (client) in the maintenance window but runs as a sub-entity of the Automatic SQL Tuning Advisor task. And (I'm just guessing) this may be one of the reasons why every PDB will have to have its own Automatic SQL Tuning Advisor task  Here you'll find more information about how to enable, disable and configure the new Oracle 12.1.0.2 SPM Evolve Advisor Task: Oracle Database 12.1.0.2 SQL Tuning Guide:Managing the SPM Evolve Advisor Task -Mike

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  • Why enumerator structs are a really bad idea

    If you've ever poked around the .NET class libraries in Reflector, you probably would have noticed that the generic collection classes all have implementations of their IEnumerator as a struct rather than a class. As you will see, this design decision has some rather unfortunate side effects......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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  • Implementing Foreach Looping Logic in SSIS

    With SSIS, it is possible to implement looping logic into SSIS's control flow in order to define a repeating workflow in a package for each member of a collection of objects. Rob Sheldon explains how to use this valuable feature of SSIS. 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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  • Combobox binding with different types

    - by George Evjen
    Binding to comboboxes in Silverlight has been an adventure the past couple of days. In our framework at ArchitectNow we use LookupGroups and LookupValues. In our database we would have a LookupGroup of NBA Teams for example. The group would be called NBATeams, we get the LookupGroupID and then get the values from the LookupValues table. So we would end up with a list of all 30+ teams. Our lookup values entity has a display text(string), value(string), IsActive and some other fields. With our applications we load all this information into the system when the user is logging in or right after they login. So in cache we have a list of groups and values that we can get at whenever we want to. We get this information in our framework simply by creating an observable collection of type LookupValue. To get a list of these values into our property all we have to do is. var NBATeams = AppContext.Current.LookupSerivce.GetLookupValues(“NBATeams”); Our combobox then is bound like this. (We use telerik components in most if not all our projects) <telerik:RadComboBox ItemsSource="{Binding NBATeams}”></telerik:RadComboBox> This should give you a list in your combobox. We also set up another property in our ViewModel that is a just single object of NBATeams  - “SelectedNBATeam” Our selectedItem in our combobox would look like, we would set this to a two way binding since we are sending data back. SelectedItem={Binding SelectedNBATeam, mode=TwoWay}” This is all pretty straight forward and we use this pattern throughout all our applications. What do you do though when you have a combobox in a ItemsControl or ListBox? Here we have a list of NBA Teams that are a string that are being brought back from the database. We cant have the selected item be our LookupValue because the data is a string and its being bound in an ItemsControl. In the example above we would just have the combobox in a form. Here though we have it in a ItemsControl, where there is no selected item from the initial ItemsSource. In order to get the selected item to be displayed in the combobox you have to convert the LookupValue to a string. Then instead of using SelectedItem in the combobox use SelectedValue. To convert the LookupValue we do this. Create an observable collection of strings public ObservableCollection<string> NBATeams { get; set;} Then convert your lookups to strings var NBATeams = new ObservableCollection<string>(AppContext.Current.LookupService.GetLookupValues(“NBATeams”).Select(x => x.DisplayText)); This will give us a list of strings and our selected value should be bound to the NBATeams property in our ItemsSource in our ItemsControl. SelectedValue={Binding NBATeam, mode=TwoWay}”

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  • How to apply effects that occur (or change) over time to characters in a game?

    - by Joshua Harris
    So assume that I have a system that applies Effects to Characters like so: public class Character { private Collection<Effect> _effects; public void AddEffect (Effect e) { e.ApplyTo(this); _effects.Add(e); } public void RemoveEffect (Effect e) { e.RemoveFrom(this); _effects.Remove(e); } } public interface Effect { public void ApplyTo (Character character); public void RemoveFrom (Character character); } Example Effect: Armor Buff for 5 seconds. void someFunction() { // Do Stuff ... Timer armorTimer = new Timer(5 seconds); ArmorBuff armorbuff = new ArmorBuff(); character.AddEffect(armorBuff); armorTimer.Start(); // Do more stuff ... } // Some where else in code public void ArmorTimer_Complete() { character.RemoveEffect(armorBuff); } public class ArmorBuff implements Effect { public void applyTo(Character character) { character.changeArmor(20); } public void removeFrom(Character character) { character.changeArmor(-20); } } Ok, so this example would buff the Characters armor for 5 seconds. Easy to get working. But what about effects that change over the duration of the effect being applied. Two examples come to mind: Damage Over Time: 200 damage every second for 3 seconds. I could mimic this by applying an Effect that lasts for 1 second and has a counter set to 3, then when it is removed it could deal 200 damage, clone itself, decrement the counter of the clone, and apply the clone to the character. If it repeats this until the counter is 0, then you got a damage over time ability. I'm not a huge fan of this approach, but it does describe the behavior exactly. Degenerating Speed Boost: Gain a speed boost that degrades over 3 seconds until you return to your normal speed. This is a bit harder. I can basically do the same thing as above except having timers set to some portion of a second, such that they occur fast enough to give the appearance of degenerating smoothly over time (even though they are really just stepping down incrementally). I feel like you could get away with only 12 steps over a second (maybe less, I would have to test it and see), but this doesn't seem very elegant to me. The only other way to implement this effect would be to change the system so that the Character checks the _effects collection for effects that alter any of the properties any time that they are being used. I could handle this in functions like getCurrentSpeed() and getCurrentArmor(), but you can imagine how much of a hassle it would be to have that kind of overhead every time you want to do a calculation with movement speed (which would be every time you move your character). Is there a better way to deal with these kinds of effects or events?

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  • What is the value of an Enterprise Resource Planning (ERP) System?

    According to PWC.com ERP systems can add tremendous value to a company’s core business functionality.  Below PWC.com summarizes the primary value that an ERP can add to a company. ERPs are a collection business application that coordinates the resources, information, and activities required for core business processes. ERPs are strategic tools used to reduce costs, improve business processes, and healthier risk management.

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  • What Would You Select?

    Software development is a collection of trade offs; performance for speed to market, quick & dirty vs. maintainable, on and on. Most tend to sacrifice user experience at some level for time to market, other do not consider maintainability, reliability....(read more)...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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  • Documenting sp_ssiscatalog

    - by jamiet
    What is the best way to document an API? Moreover, what is the best way to document a T-SQL API? Before I try to answer those questions I should explain what I mean by “a T-SQL API”. I think of an API as being a collection of well-defined, known, code modules that provide some notion of a service to whomever uses it; in T-SQL terms I tend to think of a collection of stored procedures and functions as a form of API. Its a loose definition, I admit, and in SQL Server circles we don’t tend to think of stored procedures collectively as an API but if you think about it that’s exactly what they are. The question of how to document a T-SQL API came to my mind as I worked on sp_ssiscatalog. How could I make it easy for people to learn about the capabilities of sp_ssiscatalog without forcing them to dig through the code and find out for themselves? My opening gambit was to write documentation pages on the wiki at http://ssisreportingpack.codeplex.com. That’s kinda useful but it does suffer the disadvantage that someone using sp_ssiscatalog needs to go visit a webpage to read it – I want the documentation to be available wherever the user is using sp_ssiscatalog. Moreover, maintaining the wiki is a real PITA. Intellisense works up to a point, I guess: but that only shows whatever SQL Server knows about the various parameters, which isn’t all that much! I wanted a better way for my API users to learn about its capabilities and so I hit upon the idea of simply using PRINT statements within the code itself to inform the user what options are available; hence I added such PRINT statements in the latest check-in. Now when you execute (for example): EXEC sp_ssiscatalog @operation_type='execs' you can hit F6 a few times to view the messages pane and you shall see something like this: Notice that I’m returning information about all the parameters that can be used to affect the results that just got returned. I really do think this will be very useful to anyone using sp_ssiscatalog; I myself am always forgetting what the parameters are and I wrote the damn thing so I can’t really expect anyone else to remember them. I have not yet made available a release that has these changes in it but when I do I’ll blog about it right here. At the time of writing the latest available release of sp_ssiscatalog is DB v1.0.1.0 but if you want to the latest and greatest simply download it straight from source. Feedback is welcome as always. @Jamiet

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  • IEnumerator.Current property and IEnumerator.MoveNext method

    - by nmarun
    Here’s a question: What happens to the Current property of an IEnumerator before and after the MoveNext() call? When I say ‘after the MoveNext() call’, I mean after MoveNext() returns a false indicating an end of the collection. I was going through the MSDN for IEnumerator.Current and the first paragraph basically boils down to: If MoveNext() method has never been called on an IEnumerator, the Current property is undefined. I wanted to know what ‘undefined’ means – is it null? If so, what if the...(read more)

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  • The Various Components That Make Up a Website

    A website is a collection of different web pages that provides or displays information, products and services about any organization or group. Here are the various components that makes up a successful website set up project that you need to set up for your organization or business.

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  • Looking for terminology for the relation of a subject and a predicate

    - by kostja
    While writing some predicates for collection filtering I have stumbled over the choice of the right words for the relation of the subject and the predicate (English is a foreign language for me). What I ended up writing was "Subjects matching this predicate..." This seems to be incorrect, since predicates are functions and not regular expressions. But saying "Subjects for which this predicate returns true..." sounds awkward to me as well.. So what would be the correct term?

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  • OBIEE 10.1.3.4.1 patching support about to end soon

    - by THE
    To all Users of the older release OBIEE 10.1.3.4.1: Patching support for 10.1.3.4.1 ends in September (1 year after 10.1.3.4.2 patchset release).After September, there will be no more one-off patches available for 10.1.3.4.1 or lower versions.Customers may apply 10.1.3.4.2 patchset so they can continue receiving one-off patches if situations arise. Note: 10.1.3.4.2 is a QA-tested patchset (collection of all bug fixes from 10.1.3.4.1 merged together) and is not an upgrade.

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  • What's on Azure right now?

    - by RobbieT
    If you speak to Microsoft, they'll give you a number of active accounts, but what are those accounts actually running? It could be a collection of Hello World ASP.NET sites, or perhaps small exciting web start-ups, or maybe even the beginnings of large corporate moves to the cloud! I guess what I really wanted to know was who is using Azure but that's a much harder question to answer, so we'll stick to what for now. My super awesome comrade Theo Spears attempted to answer this by trawling every...(read more)

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  • Why doesn't file detect the mime-type of mp3 properly?

    - by Grumbel
    Something odd I recently encountered, running file --mime-type on a collection of MP3 gets the mime-time wrong a third of the time: $ for i in */*.mp3; do cat "$i"| file --mime-type -; done | sort | uniq -c 140 /dev/stdin: application/octet-stream 309 /dev/stdin: audio/mpeg There doesn't seem to be any obvious reason, as even MP3s from the same source, will sometimes fail and sometimes not. Bug, feature or anything obvious I am missing here?

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  • C++ Tutorial: 10 New STL Algorithms That Will Make You A More Productive Developer

    Unquestionably, the most effective tool for a C++ programmer's productivity is the Standard library's rich collection of algorithms. In 2008, about 20 new algorithms were voted into the C++0x draft standard. These new algorithms let you among the rest copy n elements intuitively, perform set theory operations, and handle partitions conveniently. Find out how to use these algorithms to make your code more efficient and intuitive.

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