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  • RTS Game Style Application [closed]

    - by Daniel Wynand van Wyk
    My question may seem somewhat odd, but I hope that my specifications will clarify EXACTLY what it is that I am after. I need some help choosing the right tooling for a particular endeavour. My background is in desktop application development and large back-end systems. I have worked primarily on the Microsoft stack using C# and the .Net framework. My goal is to develop a 2D, RTS style, interactive office simulation. The simulation will model various office spaces, office equipment, employees and their interactions with one another. The idea is to abstract the concept of an office completely. Under the hood the application will do many things that are nothing like a game. This includes P2P networking, VPN tunnelling, streaming video, instant messaging, document collaboration, remote screen sharing, file-sharing, virus scanning, VOIP, document scanning, faxing, emailing, distributed computing, content management and much more! A somewhat similar thing has been attempted by IBM, where they created a virtual office in second life. If their attempt was a game, the game-play would be notably horrible, to say the least! The users/players will drive and control my application through the various objects modelled in the simulation. A single application capable of performing all of these various tasks would be a nightmare to navigate for even the most expert user. Using the concept of a game, I can easily separate functionality by assigning them to objects that relate 1-1 with their real world counter-parts. This can greatly simplify computing for novice users, with many added benefits in terms of visibility, transparency of process and centralized configuration. My hope is to make complex computing tasks accessible to all kinds of users and to greatly reduce the cognitive load associated with using the many different utilities and applications inside office settings. The complexity is therefore limited to the complexity of the space in which you find yourself. I want the application to target as many platforms as possible and run on computers that have no accelerated graphics capabilities. The simulation won't contain any of the fancy eye-candy you find in modern games, to the contrary, my "game" will purposefully be clean and simple. The closest thing I could imagine would be an old game like "Theme Hospital" or the first instalment of "The Sims". All the content will be pre-created and not user-generated like Second Life. New functionality will be added via a plugin system. Given my background and nature of my "game", I would like to spend most of my time writing code that does not have to do with the simulated office, as the "game" is really just a glorified application menu. I have done much reading about existing engines, frameworks and tools. I need the help of an experienced game developer who has tried and tested various products over the years who can guide me in the right direction given my very particular needs. I would appreciate any help I can get!

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  • Where does a "Technical Programmer" fit in, and what does the title mean? [closed]

    - by Mike E
    Was: "What is a 'Technical Programmer'"? I've noticed in job posting boards a few postings, all from European companies in the games industry, for a "Technical Programmer". The job description was similar, having to do with tools development, 3d graphics programming, etc. It seems to be somewhere between a Technical Artist who's more technical than artist or who can code, and a Technical Director but perhaps without the seniority/experience. Information elsewhere on the position is sparse. The title seems redundant and I haven't seen any American companies post jobs by that name, exactly. One example is this job posting on gamedev.net which isn't exactly thorough. In case the link dies: Subject: Technical Programmer Frictional Games, the creators of Amnesia: The Dark Descent and the Penumbra series, are looking for a talented programmer to join the company! You will be working for a small team with a big focus on finding new and innovating solutions. We want you who are not afraid to explore uncharted territory and constantly learn new things. Self-discipline and independence are also important traits as all work will be done from home. Some the things you will work with include: 3D math, rendering, shaders and everything else related. Console development (most likely Xbox 360). Hardware implementations (support for motion controls, etc). All coding is in C++, so great skills in that is imperative. Revised Summarised Question: So, where does a programmer of this nature fit in to software development team? If I had these on my team, what tasks am I expecting them to complete? Can I ask one to build a new level editor, or optimize the rendering engine? It doesn't seem to be a "tools programmer" which focuses on producing artist tools, often in high-level languages like C#, Python, or Java. Nor does it seem to be working directly on the engine, nor a graphics programmer, as such. Yet, a strong C++ requirement, which was mirrored in other postings besides this one I quoted. Edited To Add As far as it being a low-level programmer, I had considered that but lacking from the posting was a requirement of Assembly. Instead, they tend to require familiarity with higher-level hardware APIs such as DirectX, or DirectInput. I wasn't fully clear in my original post. I think, however, that Mathew Foscarini has it right in his answer, so barring someone who definitely works with or as a "Technical Programmer" stepping in to provide a clearer explanation, I'll go with that. A generalist, which also fits the description of a more-technical-than-artist TA.

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  • LINQ to Twitter v2.1.09 Released

    - by Joe Mayo
    Originally posted on: http://geekswithblogs.net/WinAZ/archive/2013/10/15/linq-to-twitter-v2.1.09-released.aspxToday, I released LINQ to Twitter v2.1.09. Here are important new changes. Bug Fixes This is primarily a bug fix release. Most notably, there were authentication problems in WinRT apps. This is now fixed. New Features One new feature is the addition of ApplicationOnlyAuthentication for WinRT. It is fully async.  Here’s how it works: var auth = new WinRtApplicationOnlyAuthorizer { Credentials = new InMemoryCredentials { ConsumerKey = "", ConsumerSecret = "" } }; if (auth == null || !auth.IsAuthorized) { await auth.AuthorizeAsync(); } var twitterCtx = new TwitterContext(auth); (from search in twitterCtx.Search where search.Type == SearchType.Search && search.Query == SearchTextBox.Text select search) .MaterializedAsyncCallback( async response => await Dispatcher.RunAsync( CoreDispatcherPriority.Normal, async () => { Search searchResponse = response.State.Single(); string message = string.Format( "Search returned {0} statuses", searchResponse.Statuses.Count); await new MessageDialog(message, "Search Complete").ShowAsync(); })); It’s called the WinRtApplicationOnlyAuthorizer. You only need two tokens, ConsumerKey and ConsumerSecret, which come from your Twitter API application settings page. Note: You need a Twitter Application, which you can create at https://dev.twitter.com/. The MaterializedAsyncCallback materializes your query and handles the response. I put everything together in a lambda for demonstration purposes, but you can always replace the callback with a handler of type Action<TwitterAsyncResponse<IEnumerable<T>>>, where T is Search for this example. On the Horizon The next version of LINQ to Twitter is in development. I discussed it at LINQ to Twitter Async. This isn’t complete, but you can download the source code at the LINQ to Twitter site on CodePlex. I’ve competed all the spikes for what I thought would be the hard parts and now have prototypes of queries and commands working. This would be a good time to provide feedback if there are features in the current version that you think could be improved. The current driving forces for the next version will be async and PCL.   @JoeMayo

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  • Creating a Yes/No MessageBox in a NuGet install/uninstall script

    - by ParadigmShift
    Sometimes getting a little feedback during the install/uninstall process of a NuGet package could be really useful. Instead of accounting for all possible ways to install your NuGet package for every user, you can simplify the installation by clarifying with the user what they want. This example shows how to generate a windows yes/no message box to get input from the user in the PowerShell install or uninstall script. We’ll use the prompt on the uninstall to confirm if the user wants to delete a custom setting that the initial install placed in their configuration.  Obviously you could use the prompt in any way you want. The objects of the message box are generated similar to the controls in the code behind of a WinForm. At the beginning of your script enter this: param($installPath, $toolsPath, $package, $project)   # Set up path variables $solutionDir = Get-SolutionDir $projectName = (Get-Project).ProjectName $projectPath = Join-Path $solutionDir $projectName   ################################################################################################ # WinForm generation for prompt ################################################################################################ function Ask-Delete-Custom-Settings { [void][reflection.assembly]::loadwithpartialname("System.Windows.Forms") [Void][reflection.assembly]::loadwithpartialname("System.Drawing")   $title = "Package Uninstall" $message = "Delete the customized settings?" #Create form and controls $form1 = New-Object System.Windows.Forms.Form $label1 = New-Object System.Windows.Forms.Label $btnYes = New-Object System.Windows.Forms.Button $btnNo = New-Object System.Windows.Forms.Button   #Set properties of controls and form ############ # label1 # ############ $label1.Location = New-Object System.Drawing.Point(12,9) $label1.Name = "label1" $label1.Size = New-Object System.Drawing.Size(254,17) $label1.TabIndex = 0 $label1.Text = $message   ############# # btnYes # ############# $btnYes.Location = New-Object System.Drawing.Point(156,45) $btnYes.Name = "btnYes" $btnYes.Size = New-Object System.Drawing.Size(48,25) $btnYes.TabIndex = 1 $btnYes.Text = "Yes"   ########### # btnNo # ########### $btnNo.Location = New-Object System.Drawing.Point(210,45) $btnNo.Name = "btnNo" $btnNo.Size = New-Object System.Drawing.Size(48,25) $btnNo.TabIndex = 2 $btnNo.Text = "No"   ########### # form1 # ########### $form1.ClientSize = New-Object System.Drawing.Size(281,86) $form1.Controls.Add($label1) $form1.Controls.Add($btnYes) $form1.Controls.Add($btnNo) $form1.Name = "Form1" $form1.Text = $title #Event Handler $btnYes.add_Click({btnYes_Click}) $btnNo.add_Click({btnNo_Click}) return $form1.ShowDialog() } function btnYes_Click { #6 = Yes $form1.DialogResult = 6 } function btnNo_Click { #7 = No $form1.DialogResult = 7 } ################################################################################################ This has also wired up the click events to the form.  This is all it takes to create the message box. Now we have to actually use the message box and get the user’s response or this is all pointless.  We’ll then delete the section of the application/web configuration called <Custom.Settings> [xml] $configXmlContent = Get-Content $configFile   Write-Host "Please respond to the question in the Dialog Box." $dialogResult = Ask-Delete-Custom-Settings #6 = Yes #7 = No Write-Host "dialogResult = $dialogResult" if ($dialogResult.ToString() -eq "Yes") { Write-Host "Deleting customized settings" $customSettingsNode = $configXmlContent.configuration.Item("Custom.Settings") $configXmlContent.configuration.RemoveChild($customSettingsNode) $configXmlContent.Save($configFile) } if ($dialogResult.ToString() -eq "No") { Write-Host "Do not delete customized settings" } The part where I check if ($dialog.Result.ToString() –eq “Yes”) could just as easily check the value for either 6 or 7 (Yes or No).  I just personally decided I liked this way better.   Shahzad Qureshi is a Software Engineer and Consultant in Salt Lake City, Utah, USA His certifications include: Microsoft Certified System Engineer 3CX Certified Partner Global Information Assurance Certification – Secure Software Programmer – .NET He is the owner of Utah VoIP Store at http://www.utahvoipstore.com/ and SWS Development at http://www.swsdev.com/ and publishes windows apps under the name Blue Voice.

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  • Storing a looong lookup table

    - by inquisitive
    Background The product i am working on has a very long lookup-table. the table contains static data and cannot be auto generated. there are about 500 rows and 10 columns. columns have mostly integers and strings. to complicate the matters, there are actually two such tables. every row in table-1 maps to zero-or-more rows in table-2. we use an SQLite database with two tables. the product installer places the SQLite file in the installation directory. the application is written in dot-net and we use ADO to load the data once on startup. now, the lookup table grows. in each release a month, we add about 10 new entries existing entries are adjusted. every release we fine tune existing entries. The problem a team of (10) developers work on the lookup table. Code goes in the SVN, but the little devil the SQLite does not. this prevents multiple developers to work on it. we do take regular backups of the file, but proper versioning is not possible. we never know who did the breaking change. the worse thing is we dont know if there is any change at all. diff'ing databases is tedious if not impossible. the tables are expected to grow quite large in years to come and we would need developers to work in parallel on it. the data is business critical. we need to be able to audit changes made to it. Question What would be a solution for the problems outlines above? one idea was to transform the whole thing to XML and treat it like just another source file. that way SVN can do the versioning and we can work in parallel. but the data shows relational behavior. with XML we loose the unique and foreign-key constraints. also we cant query it with sql like ease. any help here will be appreciated.

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  • New grad; To overcome complete lack of experience, should I ditch a creative pet project in lieu of one that would demonstrate more applicable skills?

    - by Hart Simha
    I am currently working on a project on github that I think would be a good demonstration of my initiative, creativity and enthusiasm. It is an educational game I am developing in pygame that enables the user to learn to improve their development productivity by using vim, specifically with python, though learning to code faster with vim should be transferable to any language. I think this is something that might have a mass appeal and benefit to a lot of people in a measurable way. -However- I am graduating from college in a month (my degree is computer science with a minor in English), with no experience that is relevant to helping me get any kind of job in the field, and a gpa that doesn't tout my merits. I could pursue a career in game development, but it's not necessarily what I'm most interested in, and see myself applying to startups around the country. To the places I am looking at applying, showing that I have experience with pygame is going to be largely irrelevant, except in demonstration of my ability to code, period. A lot of skills that ARE more marketable, such a data modeling, GIS, mobile application, development, javascript, .net framework, and various web development technologies, are not going to be showcased by this project (on the upside, employers do like to see familiarity with git and python). I'm wondering if I should sink all my free time in the next couple of months into this project, since I'm motivated and interested in it, and if the value of being able to demonstrate ambition and 'good ideas' (for lack of a better term, and in my own opinion) will compensate for the absence of demonstrating more sought-after skills. I am probably at a point where I should either commit fully to this project now, or put it on the backburner in favor of something else, and I am leaning towards continuing with what I am already working on, because I think it's a great idea, and something achievable to me with enough dedication over the next couple months. But the most important thing to me is being able to get a job out of college, which I am exceedingly concerned about as the professional landscape which I am navigating for the first time is a lot more intimidating than I could have anticipated, with almost every job (even short-term contract positions) requiring years of experience which I lack. So in brief, the common denominator to answering the question "How can I overcome experience requirements for a job" seems to be "Show off your own project." I want to know WHICH project I should work on to best increase my chances of getting a job out of college, keeping in mind that I have no experience. I believe this question is applicable to any new grad that lacks demonstrable experience.

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  • Our own Daily WTF

    - by Dennis Vroegop
    Originally posted on: http://geekswithblogs.net/dvroegop/archive/2014/08/20/our-own-daily-wtf.aspxIf you're a developer, you've probably heard of the website the DailyWTF. If you haven't, head on over to http://www.thedailywtf.com and read. And laugh. I'll wait. Read it? Good. If you're a bit like me probably you've been wondering how on earth some people ever get hired as a software engineer. Most of the stories there seem to weird to be true: no developer would write software like that right? And then you run into a little nugget of code one of your co-workers wrote. And then you realize: "Hey, it happens everywhere!" Look at this piece of art I found in our codebase recently: public static decimal ToDecimal(this string input) {     System.Globalization.CultureInfo cultureInfo = System.Globalization.CultureInfo.InstalledUICulture;     var numberFormatInfo = (System.Globalization.NumberFormatInfo)cultureInfo.NumberFormat.Clone();     int dotIndex = input.IndexOf(".");     int commaIndex = input.IndexOf(",");     if (dotIndex > commaIndex)         numberFormatInfo.NumberDecimalSeparator = ".";     else if (commaIndex > dotIndex)         numberFormatInfo.NumberDecimalSeparator = ",";     decimal result;     if (decimal.TryParse(input, System.Globalization.NumberStyles.Float, numberFormatInfo, out result))         return result;     else         throw new Exception(string.Format("Invalid input for decimal parsing: {0}. Decimal separator: {1}.", input, numberFormatInfo.NumberDecimalSeparator)); }  Me and a collegue have been looking long and hard at this and what we concluded was the following: Apparently, we don't trust our users to be able to correctly set the culture in Windows. Users aren't able to determine if they should tell Windows to use a decimal point or a comma to display numbers. So what we've done here is make sure that whatever the user enters, we'll translate that into whatever the user WANTS to enter instead of what he actually did. So if you set your locale to US, since you're a US citizen, but you want to enter the number 12.34 in the Dutch style (because, you know, the Dutch are way cooler with numbers) so you enter 12,34 we will understand this and respect your wishes! Of course, if you change your mind and in the next input field you decide to use the decimal dot again, that's fine with us as well. We will do the hard work. Now, I am all for smart software. Software that can handle all sorts of input the user can think of. But this feels a little uhm, I don't know.. wrong.. Or am I too old fashioned?

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  • Remote Graphics Diagnostics with Windows RT 8.1 and Visual Studio 2013

    - by Michael B. McLaughlin
    Originally posted on: http://geekswithblogs.net/mikebmcl/archive/2013/11/12/remote-graphics-diagnostics-with-windows-rt-8.1-and-visual-studio.aspxThis blog post is a brief follow up to my What’s New in Graphics and Game Development in Visual Studio 2013 post on the MVP Award blog. While writing that post I was testing out various features to try to make sure everything worked as expected. I had some trouble getting Remote Graphics Diagnostics (a/k/a remote graphics debugging) working on my first generation Surface RT (upgraded to Windows RT 8.1). It was more strange since I could use remote debugging when doing CPU debugging; it was just graphics debugging that was causing trouble. After some discussions with the great folks who work on the graphics tools in Visual Studio, they were able to repro the problem and recommend a solution. My Surface RT needed the ARM Kits policy installed on it. Once I followed the instructions on the previous link, I could successfully use Remote Graphics Diagnostics on my Surface RT. Please note that this requires Windows RT 8.1 RTM (i.e. not Preview) and that Remote Graphics Diagnostics on ARM only works when you are using Visual Studio 2013 as it is a new feature (it should work just fine using the Express for Windows version). Also, when I installed the ARM Kits policy I needed to do two things to get it to work properly. First, when following the “How to install the Kits policy” instructions, I needed to copy the SecureBoot folder into Program Files on my Surface RT (specifically, I copied the SecureBoot folder to “C:\Program Files\Windows Kits\8.1\bin\arm\” on my Surface RT, creating any necessary directories). It may work if it’s in any system folder; I didn’t test any others after I got it working. I had initially put it in my Downloads folder and tried installing it from there. When the machine restarted it displayed a worrisome error message. I repeatedly pressed the button that would allow me to retry and eventually the machine rebooted and managed to recover itself to its previous state. Second, I needed to install it as an Administrator. The instructions say that this might be necessary. For me it was. This is a Remote Graphics Diagnostics is a great new feature in Visual Studio 2013 so I definitely encourage all of you to check it out!

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  • Adding JavaScript to your code dependent upon conditions

    - by DavidMadden
    You might be in an environment where you code is source controlled and where you might have build options to different environments.  I recently encountered this where the same code, built on different configurations, would have the website at a different URL.  If you are working with ASP.NET as I am you will have to do something a bit crazy but worth while.  If someone has a more efficient solution please share. Here is what I came up with to make sure the client side script was placed into the HEAD element for the Google Analytics script.  GA wants to be the last in the HEAD element so if you are doing others in the Page_Load then you should do theirs last. The settings object below is an instance of a class that holds information I collection.  You could read from different sources depending on where you stored your unique ID for Google Analytics. *** This has been formatted to fit this screen. *** if (!IsPostBack) { if (settings.GoogleAnalyticsID != null || settings.GoogleAnalyticsID != string.Empty) { string str = @"//<!CDATA[ var _gaq = _gaq || []; _gaq.push(['_setAccount', '"  + settings.GoogleAnalyticsID + "']); _gaq.push(['_trackPageview']);  (function () {  var ga = document.createElement('script');  ga.type = 'text/javascript';  ga.async = true;  ga.src = ('https:' == document.location.protocol  ? 'https://ssl' :  'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0];  s.parentNode.insertBefore(ga, s);})();"; System.Web.UI.HtmlControls.HtmlGenericControl si =  new System.Web.UI.HtmlControls.HtmlGenericControl(); si.TagName = "script"; si.Attributes.Add("type", @"text/javascript"); si.InnerHtml = sb.ToString(); this.Page.Header.Controls.Add(si); } } The code above will prevent the code from executing if it is a PostBack and then if the ID was not able to be read or something caused the settings to be lost by accident. If you have larger function to declare, you can use a StringBuilder to separate the lines. This is the most compact I wished to go and manage readability.

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  • Fans running very fast on MacBook Pro 8.1 ubuntu 12.04

    - by Tomasz Kacprzak
    I installed Ubuntu 12.04 on Macbook Pro 8.1 and one of the first things I noticed was that the fans were starting to spin very fast every few minutes for 10-30 sec and then going back to normal. That was happening even without any processor load, when completely idle. The fans were usually spinning at 4000 RPM and made much noise. The computer was not getting hotter than usual. When running OSX Lion there was no noise at all, fans almost all the time at 2000 RPM. I spent some time on it and found out that Precise uses a deamon to control the temperature, called macfanctld. You can use /etc/macfanctld.conf to set the configuration. I found out that the high fan speed is not due to the fact that the temperature is getting hot, but because there are two sensors which indicate wrong numbers (you can check that using 'sensors' command ): TW0P: +129.0°C TCTD: +256.0°C TCFC: +0.0°C TMBS: +0.0°C or setting the macfanctld log level to 2: Speed: 4992, *AVG: 56.9C, TC0P: 50.2C, TG0P: 51.5C, Sensors: TB0T:34 TB1T:34 TB2T:33 TC0C:58 TC0D:56 TC0E:59 TC0F:60 TC0P:50 TC1C:58 TC2C:58 TC3C:58 TC4C:57 TCFC:0 TCGC:57 TCSA:53 TCTD:256 TG0D:52 TG0P:52 THSP:42 TM0S:64 TMBS:0 TP0P:54 TPCD:60 TW0P:129 Th1H:51 Th2H:48 Tm0P:40 Ts0P:32 Ts0S:43 Moreover, TCTD was randomly jumping from temperatures of 0 to 256, so this may be the reason for unjustified random fan speeds. macfanctld is taking an average of the sensors including the values above, so the actual AVG temp used to control the fans is wrong, usually biased up, hence high RPM and noise. The workaround solution is to use an option in the macfanctld.conf which allows to ignore the malfunctioning sensors: exclude: 13 16 21 24 After reboot the reported temperatures are usually normal and the fans are working at reasonable speeds. I tested the response of the fans to heavy processor load by asking MATLAB to invert 10000x10000 matrix and the AVG temperature jumped to 63deg, and the fan to max 6200 RPM and then got it back to normal temperature. So I think it is safe so far. There is a expired bug about the failing sensor readings: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/955538 which may be good to open again. My question would be: does anyone know what the failing sensors do and if there is any danger in excluding them? Maybe some better solution to this problem?

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  • Draw images with warped triangles on a web server [migrated]

    - by epologee
    The scenario The Flash front end of my current project produces images that a web server needs to combine into a video. Both frame-rate and frame-resolution are sizeable enough that sending an image sequence to the back end is not feasible (in both time and client bandwidth). Instead, we're trying to recreate the image drawing on the back end as well. Correct and slow, or incorrect and fast The problem is that this involves quite a bit of drawing textured triangles, and two solutions we found in Python (here and there) are so inefficient, that the drawing takes about 60 seconds per frame, resulting in a whopping 7,5 hours of processing time for a 30 second clip. Unacceptable. When using a PHP-module to send commands to ImageMagick for image manipulation, the whole process is super fast (tenths of a second per frame), but ImageMagick seems to be unable to draw triangles the way we do it in the front end, so the final results do not match. Unacceptable. What I'm asking here, is if there's someone who would know a way to solve this issue, by any means necessary that would run on a web server. Warping an image Let me explain the process of the front end: Perform a Delaunay calculation on points in an image to get an evenly distributed mesh of triangles. Offset the points/vertices in the mesh, distorting or warping the image. Draw the warped triangles on a new bitmap. We can send the results (coordinates) of steps 1 and 2 to the back end, to then draw the warped triangles and save it to an image on disk (or append as a frame to the video). But that last step is what I need help with. The Question Is there an alternative to ImageMagick that can draw triangles in a bitmap? Is there some other library, like a C library, that would allow us to do this? Or could we achieve this effect more easily by switching back end technologies, like Ruby? (.Net and Java are, unfortunately, not really options right now) Many thanks. EP. P.S. I'd appreciate re-tagging efforts, I don't quite know what labels to put on this question. Thanks!

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  • Tricky situation with EF and Include while projecting (Select / SelectMany)

    - by Vincent Grondin
    Originally posted on: http://geekswithblogs.net/vincentgrondin/archive/2014/06/07/tricky-situation-with-ef-and-include-while-projecting-select.aspxHello, the other day I stumbled on a problem I had a while back with EF and Include method calls and decided this was it and I was going to blog about it…  This would sort of to pin it inside my head and maybe help others too !  So I was using DBContext and wanted to query a DBSet and include some of it’s associations and in the end, do a projection to get a list of Ids…   At first it seems easy…  Query your DBSet, call Include right afterward, then code the rest of your statement with the appropriate where clause and then, do the projection…   Well it wasn’t that easy as my query required I code my where on some entities a few degree further in the association chain and most of these links where “Many”…  I had to do my projection right away with the SelectMany method.  So I did my stuff and tested the query….  no association where loaded…  My Include statement was simply ignored !  Then I remembered this behavior and how to get it to work…  You need to move the Include AFTER your first projection (Select or SelectMany).  So my sequence became:   Query the DBSet, do the projection with SelectMany, Include the associations, code the where clause and do the final projection…. but it wouldn’t compile…   It kept saying that it could not find an “Include” method on an IQueryable… which is perfectly true!  I knew this should work so I went to the definition of the DBset and saw it inherited DBQuery and sure enough the include method was there…  So I had to cast my statement from start until the end of the first projection in a DBQuery then do the Includes and then the rest of my query….   Bottom line is, whenever your Include statement seem to be ignored, then maybe you will need to move them further down in your query and cast your statement in whatever class gives you access to the Include…   Happy coding all !

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  • Taking a Projects Development to the Next Level

    - by user1745022
    I have been looking for some advice for a while on how to handle a project I am working on, but to no avail. I am pretty much on my fourth iteration of improving an "application" I am working on; the first two times were in Excel, the third Time in Access, and now in Visual Studio. The field is manufacturing. The basic idea is I am taking read-only data from a massive Sybase server, filtering it and creating much smaller tables in Access daily (using delete and append Queries) and then doing a bunch of stuff. More specifically, I use a series of queries to either combine data from multiple tables or group data in specific ways (aggregate functions), and then I place this data into a table (so I can sort and manipulate data using DAO.recordset and run multiple custom algorithms). This process is then repeated multiple times throughout the database until a set of relevant tables are created. Many times I will create a field in a query with a value such as 1.1 so that when I append it to a table I can store information in the field from the algorithms. So as the process continues the number of fields for the tables change. The overall application consists of 4 "back-end" databases linked together on a shared drive, with various output (either front-end access applications or Excel). So my question is is this how many data driven applications that solve problems essentially work? Each backend database is updated with fresh data daily and updating each takes around 10 seconds (for three) and 2 minutes(for 1). Project Objectives. I want/am moving to SQL Server soon. Front End will be a Web Application (I know basic web-development and like the administration flexibility) and visual-studio will be IDE with c#/.NET. Should these algorithms be run "inside the database," or using a series of C# functions on each server request. I know you're not supposed to store data in a database unless it is an actual data point, and in Access I have many columns that just hold calculations from algorithms in vba. The truth is, I have seen multiple professional Access applications, and have never seen one that has the complexity or does even close to what mine does (for better or worse). But I know some professional software applications are 1000 times better then mine. So Please Please Please give me a suggestion of some sort. I have been completely on my own and need some guidance on how to approach this project the right way.

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  • Crash when using datablocks

    - by scorcher24
    I have really throughly searched the net and could not find any solution for this so I ask for help here. Anyway, I have this datablock in datablocks.cs: datablock t2dSceneObjectDatablock(EnemyShipConfig) { canSaveDynamicFields = "1"; Layer = "3"; size = "64 64"; CollisionActiveSend = "1"; CollisionActiveReceive = "1"; CollisionCallback = true; CollisionLayers = "3"; CollisionDetectionMode = "POLYGON"; CollisionPolyList = "0.00 -0.791 0.756 0.751 -0.746 0.732"; UsesPhysics = "0"; Rotation = "-90"; WorldLimitMode = "KILL"; WorldLimitMax = "880 360"; WorldLimitMin = "-765 -436"; minFireRate = "2000"; maxFireRate = "1200"; laserSpeed = "800"; minSpeed = "100"; maxSpeed = "150"; }; This is an exact reproduction of an object that I have manually edited in the editor. So far, I just used clone() to get as many enemies as I need, while it was out of sight. It is a r-type style shooter, so I need a variable amount of enemies. Since clone() spams my log, I decided to use datablocks, since it is also more flexible. That's what I get when I use clone(): Con::execute - 0 has no namespace: onRemoveFromScene However, once spawning begins, my game freezes and crashes: function SpawnEnemy() { //%spawnedEnemy = EnemyShipMaster.clone(true); %spawnedEnemy = new t2dStaticSprite() { class = "EnemyShip"; sceneGraph = $global_sceneGraph; datablock = "EnemyShipConfig"; imageMap = "starshipImageMap"; layer = 3; }; %speed = getRandom(%spawnedEnemy.minSpeed, %spawnedEnemy.maxSpeed); %y = getRandom(-320, 320); // Set Properties %spawnedEnemy.setPositionX(700); %spawnedEnemy.setPositionY(%y); %spawnedEnemy.setVisible(true); %spawnedEnemy.setLinearVelocityX( -%speed ); %spawnedEnemy.setTimerOn( getRandom( %spawnedEnemy.maxFireRate, %spawnedEnemy.minFireRate ) ); } // Definition of $global_sceneGraph from game.cs: $global_sceneGraph = sceneWindow2D.loadLevel(%level); As I said, it works fine when I use clone() (which is commented out here), but my log gets spammed. I really hope someone can shed some light for me, this is driving me crazy.

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  • Things to do After installing Visual Studio Express 12.

    - by Anirudha
    Originally posted on: http://geekswithblogs.net/anirugu/archive/2013/06/25/things-to-do-after-install-visual-studio-express-12.aspx  1. Environment > Document > Check the option for auto-load changes. By checking this option You can modified the file outside the VWD and VWD don’t tell you for confirmation. 2. Environment > Tabs and Windows > Preview Tab > uncheck the solution Explorer option. This option don’t show you the file when you just click on them in solution explorer. 3. Project and solutions > Check the track active item in solution explorer This option help you to easily figure out which file you working on and where it is in solution explorer . 4. text editor > all settings > word wrap > check this feature to enable word wrap 5. Text-editor > Css > formatting > check the compact rule. this option make you file smaller in size and easily to read. 6. Text-editor > html > miscellaneous > uncheck the auto ID option. Actually When you copy paste the html code Visual studio change their ID if ID is already exist. this option disable that feature. This is useful to do when we write if{} else {} statement and this is not helpful on that case. 7. Package manager > General > browse > copy the location of cache folder and in package source add them as source. This way you can use package that you have use earlier when you are offline. Thanks for read my post

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  • Why is my primitive xna square not drawn/shown?

    - by Mech0z
    I have made this class to draw a rectangle, but I cant get it to be drawn, I have no issues displaying a 3d model created in 3dmax, but shown these primitives seems much harder I use this to create it board = new Board(Vector3.Zero, 1000, 1000, Color.Yellow); And here is the implementation using System; using System.Net; using System.Windows; using System.Windows.Controls; using System.Windows.Documents; using System.Windows.Ink; using System.Windows.Input; using System.Windows.Shapes; using Quadro.Models; using Microsoft.Xna.Framework; using Microsoft.Xna.Framework.Graphics; namespace Quadro { public class Board : IGraphicObject { //Private Fields private Vector3 modelPosition; private BasicEffect effect; private VertexPositionColor[] vertices; private Matrix rotationMatrix; private GraphicsDevice graphicsDevice; private Matrix cameraProjection; //Constructor public Board(Vector3 position, float length, float width, Color color) { var _color = color; vertices = new VertexPositionColor[6]; vertices[0].Position = new Vector3(position.X, position.Y, position.Z); vertices[1].Position = new Vector3(position.X, position.Y + width, position.Z); vertices[2].Position = new Vector3(position.X + length, position.Y, position.Z); vertices[3].Position = new Vector3(position.X + length, position.Y, position.Z); vertices[4].Position = new Vector3(position.X, position.Y + width, position.Z); vertices[5].Position = new Vector3(position.X + length, position.Y + width, position.Z); for(int i = 0; i < vertices.Length; i++) { vertices[i].Color = color; } initFields(); } private void initFields() { graphicsDevice = SharedGraphicsDeviceManager.Current.GraphicsDevice; effect = new BasicEffect(graphicsDevice); modelPosition = Vector3.Zero; float screenWidth = (float)graphicsDevice.Viewport.Width; float screenHeight = (float)graphicsDevice.Viewport.Height; float aspectRatio = screenWidth / screenHeight; this.cameraProjection = Matrix.CreatePerspectiveFieldOfView(MathHelper.ToRadians(45.0f), aspectRatio, 1.0f, 10000.0f); this.rotationMatrix = Matrix.Identity; } //Public Methods public void Update(GameTimerEventArgs e) { } public void Draw(Vector3 cameraPosition, GameTimerEventArgs e) { Matrix cameraView = Matrix.CreateLookAt(cameraPosition, Vector3.Zero, Vector3.Up); foreach (EffectPass pass in effect.CurrentTechnique.Passes) { pass.Apply(); effect.World = rotationMatrix * Matrix.CreateTranslation(modelPosition); effect.View = cameraView; effect.Projection = cameraProjection; graphicsDevice.DrawUserPrimitives(PrimitiveType.TriangleList, vertices, 0, 2, VertexPositionColor.VertexDeclaration); } } public void Rotate(Matrix rotationMatrix) { this.rotationMatrix = rotationMatrix; } public void Move(Vector3 moveVector) { this.modelPosition += moveVector; } } }

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  • Fans running very fast on MacBook Pro 8.1

    - by Tomasz Kacprzak
    I installed Ubuntu 12.04 on Macbook Pro 8.1 and one of the first things I noticed was that the fans were starting to spin very fast every few minutes for 10-30 sec and then going back to normal. That was happening even without any processor load, when completely idle. The fans were usually spinning at 4000 RPM and made much noise. The computer was not getting hotter than usual. When running OSX Lion there was no noise at all, fans almost all the time at 2000 RPM. I spent some time on it and found out that Precise uses a deamon to control the temperature, called macfanctld. You can use /etc/macfanctld.conf to set the configuration. I found out that the high fan speed is not due to the fact that the temperature is getting hot, but because there are two sensors which indicate wrong numbers (you can check that using 'sensors' command ): TW0P: +129.0°C TCTD: +256.0°C TCFC: +0.0°C TMBS: +0.0°C or setting the macfanctld log level to 2: Speed: 4992, *AVG: 56.9C, TC0P: 50.2C, TG0P: 51.5C, Sensors: TB0T:34 TB1T:34 TB2T:33 TC0C:58 TC0D:56 TC0E:59 TC0F:60 TC0P:50 TC1C:58 TC2C:58 TC3C:58 TC4C:57 TCFC:0 TCGC:57 TCSA:53 TCTD:256 TG0D:52 TG0P:52 THSP:42 TM0S:64 TMBS:0 TP0P:54 TPCD:60 TW0P:129 Th1H:51 Th2H:48 Tm0P:40 Ts0P:32 Ts0S:43 Moreover, TCTD was randomly jumping from temperatures of 0 to 256, so this may be the reason for unjustified random fan speeds. macfanctld is taking an average of the sensors including the values above, so the actual AVG temp used to control the fans is wrong, usually biased up, hence high RPM and noise. The workaround solution is to use an option in the macfanctld.conf which allows to ignore the malfunctioning sensors: exclude: 13 16 21 24 After reboot the reported temperatures are usually normal and the fans are working at reasonable speeds. I tested the response of the fans to heavy processor load by asking MATLAB to invert 10000x10000 matrix and the AVG temperature jumped to 63deg, and the fan to max 6200 RPM and then got it back to normal temperature. So I think it is safe so far. There is a expired bug about the failing sensor readings: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/955538 which may be good to open again. My question would be: does anyone know what the failing sensors do and if there is any danger in excluding them? Maybe some better solution to this problem?

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  • I'm graduating with a Computer Science degree but I don't feel like I know how to program.

    - by wp123
    I'm graduating with a Computer Science degree but I see websites like Stack Overflow and search engines like Google and don't know where I'd even begin to write something like that. During one summer I did have the opportunity to work as a iPhone developer, but I felt like I was mostly gluing together libraries that other people had written with little understanding of the mechanics happening beneath the hood. I'm trying to improve my knowledge by studying algorithms, but it is a long and painful process. I find algorithms difficult and at the rate I am learning a decade will have passed before I will master the material in the book. Given my current situation, I've spent a month looking for work but my skills (C, Python, Objective-C) are relatively shallow and are not so desirable in the local market, where C#, Java, and web development are much higher in demand. That is not to say that C and Python opportunities do not exist but they tend to demand 3+ years of experience I do not have. My GPA is OK (3.0) but it's not high enough to apply to the large companies like IBM or return for graduate studies. Basically I'm graduating with a Computer Science degree but I don't feel like I've learned how to program. I thought that joining a company and programming full-time would give me a chance to develop my skills and learn from those more experienced than myself, but I'm struggling to find work and am starting to get really frustrated. I am going to cast my net wider and look beyond the city I've grown up in, but what have other people in similar situation tried to do? I've worked hard but don't have the confidence to go out on my own and write my own app. (That is, become an indie developer in the iPhone app market.) If nothing turns up I will need to consider upgrading and learning more popular skills or try something marginally related like IT, but given all the effort I've put in that feels like copping out. EDIT: Thank you for all the advice. I think I was premature because of unrealistic expectations but the comments have given me a dose of reality. I will persevere and continue to code. I have a project in mind, although well beyond my current capabilities it will challenge me to hone my craft and prove my worth to myself (and potential employers). Had I known there was a career overflow I would have posted there instead. Thanks again!

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  • Insert Or update (aka Replace or Upsert)

    - by Davide Mauri
    The topic is really not new but since it’s the second time in few days that I had to explain it different customers, I think it’s worth to make a post out of it. Many times developers would like to insert a new row in a table or, if the row already exists, update it with new data. MySQL has a specific statement for this action, called REPLACE: http://dev.mysql.com/doc/refman/5.0/en/replace.html or the INSERT …. ON DUPLICATE KEY UPDATE option: http://dev.mysql.com/doc/refman/5.0/en/insert-on-duplicate.html With SQL Server you can do the very same using a more standard way, using the MERGE statement, with the support of Row Constructors. Let’s say that you have this table: CREATE TABLE dbo.MyTargetTable (     id INT NOT NULL PRIMARY KEY IDENTITY,     alternate_key VARCHAR(50) UNIQUE,     col_1 INT,     col_2 INT,     col_3 INT,     col_4 INT,     col_5 INT ) GO INSERT [dbo].[MyTargetTable] VALUES ('GUQNH', 10, 100, 1000, 10000, 100000), ('UJAHL', 20, 200, 2000, 20000, 200000), ('YKXVW', 30, 300, 3000, 30000, 300000), ('SXMOJ', 40, 400, 4000, 40000, 400000), ('JTPGM', 50, 500, 5000, 50000, 500000), ('ZITKS', 60, 600, 6000, 60000, 600000), ('GGEYD', 70, 700, 7000, 70000, 700000), ('UFXMS', 80, 800, 8000, 80000, 800000), ('BNGGP', 90, 900, 9000, 90000, 900000), ('AMUKO', 100, 1000, 10000, 100000, 1000000) GO If you want to insert or update a row, you can just do that: MERGE INTO     dbo.MyTargetTable T USING     (SELECT * FROM (VALUES ('ZITKS', 61, 601, 6001, 60001, 600001)) Dummy(alternate_key, col_1, col_2, col_3, col_4, col_5)) S ON     T.alternate_key = S.alternate_key WHEN     NOT MATCHED THEN     INSERT VALUES (alternate_key, col_1, col_2, col_3, col_4, col_5) WHEN     MATCHED AND T.col_1 != S.col_1 THEN     UPDATE SET         T.col_1 = S.col_1,         T.col_2 = S.col_2,         T.col_3 = S.col_3,         T.col_4 = S.col_4,         T.col_5 = S.col_5 ; If you want to insert/update more than one row at once, you can super-charge the idea using Table-Value Parameters, that you can just send from your .NET application. Easy, powerful and effective

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  • The type of programmer I want to be [closed]

    - by Aventinus_
    I'm an undergraduate Software Engineer student, although I've decided that pure programming is what I want to do for the rest of my life. The thing is that programming is a vast field and although most of its aspects are extremely interesting, soon or later I'll have to choose one (?) to focus on. I have several ideas on small projects I'd like to develop this summer, having in mind that this will gain me some experience and, in the best scenario, some cash. But the most important reason I'd like to develop something close to “professional” is to give myself direction on what I want to do as a programmer. One path is that of the Web Programmer. I enjoy PHP and MySQL, as well as HTML and CSS, although I don't really like ASP.NET. I can see myself writing web apps, using the above technologies, as well as XML and Javascript. I also have a neat idea on a Facebook app. The other path is that of the Desktop Programmer. This is a little more complicated cause I really-really enjoy high level languages such as Java and Python but not the low level ones, such as C. I use both Linux and Windows for the last 6 years and I like their latest DEs (meaning Gnome Shell and Metro). I can see myself writing desktop applications for both OSs as long as it means high level programming. Ideally I'd like being able to help the development of GNOME. The last path that interests me is the path of the Smartphone Programmer. I have created some sample applications on Android and due to Java I found it a quite interesting experience. I can also see myself as an independent smartphone developer. These 3 paths seem equally interesting at the moment due to the shallowness of my experience, I guess. I know that I should spend time with all of them and then choose the right one for me but I'd like to know what are the pros and cons in terms of learning curve, fun, job finding and of course financial rewards with each of these paths. I have fair or basic understanding of the languages/technologies I described earlier and this question will help me choose where to focus, at least for now.

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  • High-Powered Sites for low Cost

    - by HighAltitudeCoder
    Ahh, I am experiencing the intimidation of my very first post - visible by the whole world. Ok, here goes.   This first post is nothing exceptional.  It is simply a recommendation based (fittingly, I suppose) upon the job search you may be gearing up for.  I find myself in this very situation right now.  And, I will take my own recommendation after posting this entry. Job-Seekers: To the left you will notice two links under "Recommended Learning".  I have found these links to be invaluable when it comes to re-tooling, re-familiarizing, or otherwise resharping my skills when looking for that next job. Often, you will find job-postings with the text, usually posted after a laborious list of qualifications indicating the company's desire to hire candidates who know what they are doing: "...Looking for a candidate who can hit the ground running...".  The interesting thing about this post to me is I've encountered many individuals who, after speaking and working with them for some time, I've realized are perfectly capable of hitting the ground running - and FAST.  But what if they speed off in the wrong direction? The next time you spearhead a major task in your job, ask yourself: Am I headed in the wrong direction?  There are many ways to do this.  In fact, I've found in this new field there are more tempting ways to steer your project in the wrong direction than there are good ones.  I don't want to suggest that every one of my posts will fall into the "right direction" category, however I do think a healthy dose of introspection of the pros and cons will always be beneficial before you set off. That said, allow me to expound on the previously mentioned links. These web sites are invaluable.  They demonstrate the capabilities of existing as well as new and upcoming tools available in several IDE's.  I've viewed many tutorials in LearnVisualStudio.NET, and only one or two so far in TrainingSpot, however I've been delighted in their simplicity and straightforward approach to proper usage of the particular tool or concept being discussed.  They have not (so far in my experience) demonstrated ways in which to use the tools that become cumbersome, impractical, or error-prone. Each website has step-by-step videos that can be paused, replayed, and most importantly, they are done in real time.  As the author is typing, the viewer gets to experience the coding experience from a first-person perspective, including syntax errors, unexpected behaviors, IDE setup idiosyncracies, everything.  A subtle value I've gained from these videos is that a certain degree of confusion and introspection is normal when working with new tools and exploring new paths.  They (as well as your own experience) are not to be feared, but enjoyed.  I highly recommend them. Good work, guys!

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  • Forced to be trained [closed]

    - by steeb
    is it OK to force employees to take a training in order to make them sign a contract to stay in the job for X years? Here I'm the only developer in the company and before this job I've developed in VB6, VB.Net and others. There are others technicians here but they query the database server to make reports and make little programs but do not spend all day in programming. I was hired here to manage some legacy data to be migrated to a new system and I used my experience to accomplish the task. I also have made some utilities and other developments. Since we went live with the new system I've been developing a lot of side programs, add-ons and changed the source code of it and basically I've been learning from it since then and became some sort of jack of all trades when some feature needs to be changed or corrected. I have one and a half year in this company but during the last 8 months I've been entirely programming in the system. There have been times when even the implementers ask me how I accomplish certain things. The issue here is that the company has come and told me and other co-workers (which do not program in the system but know basic programming and databases) to have a basic training to program for the new system's platform and when we finish it we will sign a contract to stay in the company for an unspecified time. They have offered also an unspecified better salary. I'm feeling very suspicious cause I know the basics of system and I don't understand why I have to take it, being known by everybody all developments I've made. I gathered with my boss and told him that I should not take that course because I feel that I can learn more with all the daily requirements I've been asked and they should save that money. But he responded me that I have to take it and sign after that. I think they want me to be with them for a long time, and I'd like to, but my opinion is that I would like to stay in the company because I feel comfortable in all laboral aspects (including salary) but not because I signed a contract forced to do more tasks and forced to say no if I have others and better job offers. What advice can you give me in this kind of situation?

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  • From 20,663 issues to 1 issue&ndash;style-copping C5.Tests

    - by TATWORTH
    Originally posted on: http://geekswithblogs.net/TATWORTH/archive/2014/05/28/from-20663-issues-to-1-issuendashstyle-copping-c5.tests.aspxI recently became interested in the potential of the C5 Collections solution from http://www.itu.dk/research/c5/, however I was dismayed at the state of the code in the unit test project, so I set about fixing the 20,663 issues detected by StyleCop. The tools I used were the latest versions of: My 64-bit development PC running Windows 8 Update with 8Gb RAM Visual Studio 2013 Ultimate with SP2 ReSharper GhostDoc Pro My first attempt had to be abandoned due to collision of class names which broke one of the unit tests. So being aware of this duplication of class names, I started again and planned to prepend the class names with the namespace name. In some cases I additionally prepended the item of the C5 collection that was being tested. So what was the condition of code at the start? Besides the sprawl of C# code not written to style cop standard, there was: 1) Placing of many classes within one physical file. 2) Namespace within name space that did not follow the project structure. 3) As already mentioned, duplication of class names across namespaces. 4) A copyright notice that spawled but had to be preserved. 5) Project sub-folders were all lower case instead of initial letter capitalised. The first step was to add a stylecop heading plus the original heading contained within a region, to every file. The next step was to run GhostDoc Pro using its “Document File” option on every file but not letting it replace the headers, I had added. This brought the number of issues down to 18,192. I then went through each file collapsing each class and prepending names as appropriate. At each step, I saved the changes to my local Git. The step was to move each class to its own file and to style-cop each file. ReSharper provides a very useful feature for doing this which also fixes missing “this.” and moves using statements inside the namespace. Some classes required minimal work whereas others required extensive work to reach the stylecop standard. The unit tests were run at each split and when each class was completed. When all was done, one issue remained which I will need to submit to stylecop team for their advice (and possibly a fix to stylecop). The updated solution has been made available at https://c5stylecopped.codeplex.com/releases/view/122785.

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  • Setting the SlideShowExtender's Index

    - by Bunch
    The AJAX SlideShowExtender is pretty useful. It does what it says and works without much fuss. There was one trick I needed it to perform that I could not find natively within the control. That was to set the slide’s current index. With a little JavaScript however I could make the control do what I wanted. The example below assumes a few things. First you already have a SlideShowExtender setup and working (or see this post). Second this SlideShowExtender is on a page all by itself so the index to set the slide to is passed in the URL. The scenario I had was this SSE was showing full images, the index was passed from another page that had a SSE showing thumbnails. JavaScript in <head> <script type="text/javascript">      function pageLoad() {          var slider = $find("sse");          var photoIndex = GetQuerystring('Index', 0);          slider._currentIndex = photoIndex - 1;          slider._slides = '';          slider.setCurrentImage();      }      function GetQuerystring(key, default_) {          if (default_ == null) default_ = '0';          key = key.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");          var regex = new RegExp("[\\?&]" + key + "=([^&#]*)");          var qs = regex.exec(window.location.href);          if (qs == null)              return default_;          else              return qs[1];      } </script> The GetQuerystring function is what grabs the Index value I pass from the page with the thumbnails. It does not have anything else to do with setting the slide index. The code in the pageLoad function sets the index on the slide_currentIndex line. The slider.setCurrentImage() line does pretty much what it says. I added the slider._slider = ‘’ to avoid an error (not a show stopper just a bit annoying). Control in <body> <cc1:SlideShowExtender ID="ssePhotos" runat="server" TargetControlID="imgFull" AutoPlay="false"          PreviousButtonID="btnPrev" NextButtonID="btnNext" SlideShowServicePath="PlacePhotos.asmx"           SlideShowServiceMethod="GetPlaceFullPhotos" BehaviorID="sse" ImageDescriptionLabelID="lblPictureDescription"> </cc1:SlideShowExtender> The main property to set with the SSE is the BehaviorID. This is what a JavaScript function can use to find the control rather than the control’s ID value. Technorati Tags: AJAX,ASP.Net,JavaScript

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  • Silverlight 4 Twitter Client &ndash; Part 5

    - by Max
    In this post, we will look at implementing the following in our twitter client - displaying the profile picture in the home page after logging in. So to accomplish this, we will need to do the following steps. 1) First of all, let us create another field in our Global variable static class to hold the profile image url. So just create a static string field in that. public static string profileImage { get; set; } 2) In the Login.xaml.cs file, before the line where we redirect to the Home page if the login was successful. Create another WebClient request to fetch details from this url - .xml">http://api.twitter.com/1/users/show/<TwitterUsername>.xml I am interested only in the “profile_image_url” node in this xml string returned. You can choose what ever field you need – the reference to the Twitter API Documentation is here. 3) This particular url does not require any authentication so no need of network credentials for this and also the useDefaultCredentials will be true. So this code would look like. WebRequest.RegisterPrefix("http://", System.Net.Browser.WebRequestCreator.ClientHttp); WebClient myService = new WebClient(); myService.AllowReadStreamBuffering = myService.UseDefaultCredentials = true; myService.DownloadStringCompleted += new DownloadStringCompletedEventHandler(TimelineRequestCompleted_User);) myService.DownloadStringAsync(new Uri("http://api.twitter.com/1/users/show/" + TwitterUsername.Text + ".xml")); 4) To parse the xml file returned by this and get the value of the “profile_image_url” node, the LINQ code will look something like XDocument xdoc; xdoc = XDocument.Parse(e.Result); var answer = (from status in xdoc.Descendants("user") select status.Element("profile_image_url").Value); GlobalVariable.profileImage = answer.First().ToString(); 5) After this, we can then redirect to Home page completing our login formalities. 6) In the home page, add a image tag and give it a name, something like <Image Name="image1" Stretch="Fill" Margin="29,29,0,0" Height="73" VerticalAlignment="Top" HorizontalAlignment="Left" Width="73" /> 7) In the OnNavigated to event in home page, we can set the image source url as below image1.Source = new BitmapImage(new Uri(GlobalVariable.profileImage, UriKind.Absolute)); Hope this helps. If you have any queries / suggestions, please feel free to comment below or contact me. Technorati Tags: Silverlight,LINQ,Twitter API,Twitter

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