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  • Alias a linked Server in SQL server management studio?

    - by absentmindeduk
    Hoping someone can help - is there a way in SQL server management studio 2008 R2 that I can alias a linked SQL server? I have a server, added by IP address, to which I do not have the login credentials - however as the connection is already setup I can login ok. Issue is that, this is a dev environment, prior to a live deployment and the IP I have as a linked server needs to be 'accessible' by my stored procs under a different name, eg 'myserver' not 192.168.xxx.xxx... Any help much appreciated.

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  • Linux Terminal I/O via SPI Device

    - by crankshaft
    Is it possible to create a console using the SPI device (/dev/spidev0.0) in a similar way that you would create a serial console, or if not is this possible ?? GRUB_TERMINAL=serial GRUB_SERIAL_COMMAND="serial --speed=38400 --unit=0 --word=8 --parity=no --stop=1" GRUB_CMDLINE_LINUX_DEFAULT="console=tty0 console=ttyS0,38400n8 ipv6.disable=1" Or would it be possible to redirect input and output to a script or .c binary and have that handle the SPI ?

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  • Why can I no longer pin tabs in Google Chrome?

    - by Niphoet
    I am using the latest dev channel version of Chrome in Ubuntu 9.10. Before Chrome automatically updated a few days ago, I had the option to pin tabs. This option no longer appears when I right-click on a tab. Is anyone else having these problems? If not, any idea what I can do to fix this? Thanks.

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  • Choose source interface for PPTP VPN on Ubuntu

    - by Emyl
    I have an Ubuntu Virtualbox guest with two network interface, eth0 (NAT) and eth1 (bridged). I want to connect to a PPTP VPN using eth1, but I don't know how to specify which interface to use. If i just try: sudo pon myvpn nodetach It fails with: Using interface ppp0 Connect: ppp0 <--> /dev/pts/1 Modem hangup Connection terminated. Looking at routes with route seems to indicate that eth0 is being used: x.x.x.x.no 10.0.2.2 255.255.255.255 UGH 0 0 0 eth0

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  • Bridging two wireless interfaces with brctl?

    - by AK_
    I have this topology: [internet] ^ L-------[wlan0]-[host]-[wlan1]-----[client-1] I tried to bridge wlan0 wlan1 but it wont work with brctl; but magically when I issue this command #iw set dev wlan0 4addr on it adds wlan0 to the bridge BUT I lost all internet connection and I was unable to hook it to the internet router. can somebody please explain why did that happen and is there a way to get this done ?

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  • Will a hosting company work with a site that'll (eventually and ideally) have many frequent visitors

    - by user66083
    I have a website I'd like to develop that might eventually get fairly large (in terms of what's stored and how many people visit). My question is, will staying with a hosting company (namely, FatCow) be a complete disaster? Or is there an alternative? I know very little about this aspect of web dev, so it would be great if any technology I need to learn was mentioned with some detail. Thank you very much.

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  • SVN permission problem on Windows 7

    - by acidzombie24
    In tortoisesvn i get the error Can't create directory 'C:\dev\repo\subfolder\db\transactions\49-1g.txn': ... I used robocopy (i cant remember if i used /copyall) to copy the files onto an external drive then i copied it back after a format. Now ATM i cannot commit. How do i fix this?

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  • Gentoo/mdadm: Remove 1 disk from RAID 0 array

    - by Tim
    The server has a 7-disk RAID 0 array, and sdf is starting to die. Is there a way to remove sdf while keeping the array intact? # df -h Filesystem Size Used Avail Use% Mounted on /dev/md1 14T 6.6T 7.0T 49% /var [...] # cat /proc/mdstat Personalities : [raid0] md1 : active raid0 sda4[0] sdf1[5] sdd1[3] sdb1[1] sde1[4] sdg1[6] sdc1[2] 14482788352 blocks 512k chunks Looking to keep downtime to a minimum.

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  • How to check there are no html files in current directory?

    - by kev
    I have a script which will download html files into current directory. Then it'll generate a report based on these html files. At last, it'll delete all these html files. So, when I run this script, I want to make sure there is no html files in current dir. This is what I got: if ls *.html >/dev/null 2>&1; then echo 'clear HTML files first' exit fi Is there any easy way to check?

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  • How to change default user (ubuntu) via CloudInit on AWS

    - by Gui Ambros
    I'm using CloudInit to automate the startup of my instances on AWS. I followed the (scarce) documentation available at http://bazaar.launchpad.net/~cloud-init-dev/cloud-init/trunk/annotate/head%3A/doc/examples/cloud-config.txt and examples on /usr/share/doc/cloud-init, but still haven't figured out how to change the default username (ubuntu, id:1000). I know I can create a script to manually delete the default ubuntu and add my user, but seems counter intuitive given that CloudInit exist exactly to automate the initial setup. Any ideas?

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  • Android "application stopped unexpectedly" - google Hello MapView Tutoria

    - by Cookie
    Hi, I'm trying the Hello MapView Tutorial at the moment. Whe I launch the program in the emulator, I get a huge number of errors (none of the exceptions seems to be related with lines in my code). The emulator window tells the program "stopped unexpectedly". Can anybody tell me which is the key line in the error output? What do I have to change? 05-02 15:04:57.195: ERROR/vold(26): Error opening switch name path '/sys/class/switch/test2' (No such file or directory) 05-02 15:04:57.195: ERROR/vold(26): Error bootstrapping switch '/sys/class/switch/test2' (No such file or directory) 05-02 15:04:57.195: ERROR/vold(26): Error opening switch name path '/sys/class/switch/test' (No such file or directory) 05-02 15:04:57.195: ERROR/vold(26): Error bootstrapping switch '/sys/class/switch/test' (No such file or directory) 05-02 15:05:10.659: ERROR/MemoryHeapBase(51): error opening /dev/pmem: No such file or directory 05-02 15:05:10.659: ERROR/SurfaceFlinger(51): Couldn't open /sys/power/wait_for_fb_sleep or /sys/power/wait_for_fb_wake 05-02 15:05:10.699: ERROR/libEGL(51): couldn't load <libhgl.so> library (Cannot load library: load_library[984]: Library 'libhgl.so' not found) 05-02 15:05:11.403: ERROR/libEGL(62): couldn't load <libhgl.so> library (Cannot load library: load_library[984]: Library 'libhgl.so' not found) 05-02 15:05:14.775: ERROR/BatteryService(51): Could not open '/sys/class/power_supply/usb/online' 05-02 15:05:14.775: ERROR/BatteryService(51): Could not open '/sys/class/power_supply/battery/batt_vol' 05-02 15:05:14.775: ERROR/BatteryService(51): Could not open '/sys/class/power_supply/battery/batt_temp' 05-02 15:05:15.148: ERROR/EventHub(51): could not get driver version for /dev/input/mouse0, Not a typewriter 05-02 15:05:15.148: ERROR/EventHub(51): could not get driver version for /dev/input/mice, Not a typewriter 05-02 15:05:15.282: ERROR/System(51): Failure starting core service 05-02 15:05:15.282: ERROR/System(51): java.lang.SecurityException 05-02 15:05:15.282: ERROR/System(51): at android.os.BinderProxy.transact(Native Method) 05-02 15:05:15.282: ERROR/System(51): at android.os.ServiceManagerProxy.addService(ServiceManagerNative.java:146) 05-02 15:05:15.282: ERROR/System(51): at android.os.ServiceManager.addService(ServiceManager.java:72) 05-02 15:05:15.282: ERROR/System(51): at com.android.server.ServerThread.run(SystemServer.java:162) 05-02 15:05:15.302: ERROR/AndroidRuntime(51): Crash logging skipped, no checkin service 05-02 15:05:17.012: ERROR/LockPatternKeyguardView(51): Failed to bind to GLS while checking for account 05-02 15:05:21.795: ERROR/ActivityThread(100): Failed to find provider info for com.google.settings 05-02 15:05:21.819: ERROR/ActivityThread(100): Failed to find provider info for com.google.settings 05-02 15:05:25.872: ERROR/ApplicationContext(51): Couldn't create directory for SharedPreferences file shared_prefs/wallpaper-hints.xml 05-02 15:05:28.923: ERROR/vold(26): Cannot start volume '/sdcard' (volume is not bound) 05-02 15:05:26.879: ERROR/ActivityThread(97): Failed to find provider info for android.server.checkin 05-02 15:05:30.211: ERROR/ActivityThread(97): Failed to find provider info for android.server.checkin 05-02 15:05:30.430: ERROR/ActivityThread(97): Failed to find provider info for android.server.checkin 05-02 15:05:32.463: ERROR/MediaPlayerService(30): Couldn't open fd for content://settings/system/notification_sound 05-02 15:05:32.489: ERROR/MediaPlayer(51): Unable to to create media player 05-02 15:05:34.783: ERROR/ActivityThread(51): Failed to find provider info for com.google.settings 05-02 15:05:34.783: ERROR/ActivityThread(51): Failed to find provider info for com.google.settings 05-02 15:05:35.359: ERROR/AndroidRuntime(201): Uncaught handler: thread main exiting due to uncaught exception 05-02 15:05:35.395: ERROR/AndroidRuntime(201): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{org.diretto.client.smartphone.android/org.diretto.client.smartphone.android.ShowMap}: java.lang.ClassNotFoundException: org.diretto.client.smartphone.android.ShowMap in loader dalvik.system.PathClassLoader@4376af90 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2324) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.app.ActivityThread.access$2100(ActivityThread.java:116) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.os.Handler.dispatchMessage(Handler.java:99) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.os.Looper.loop(Looper.java:123) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.app.ActivityThread.main(ActivityThread.java:4203) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at java.lang.reflect.Method.invokeNative(Native Method) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at java.lang.reflect.Method.invoke(Method.java:521) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at dalvik.system.NativeStart.main(Native Method) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): Caused by: java.lang.ClassNotFoundException: org.diretto.client.smartphone.android.ShowMap in loader dalvik.system.PathClassLoader@4376af90 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at java.lang.ClassLoader.loadClass(ClassLoader.java:573) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at java.lang.ClassLoader.loadClass(ClassLoader.java:532) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.app.Instrumentation.newActivity(Instrumentation.java:1097) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2316) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): ... 11 more 05-02 15:05:35.527: ERROR/dalvikvm(201): Unable to open stack trace file '/data/anr/traces.txt': Permission denied

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  • C# SQL Parameter Errors in Loops

    - by jakesankey
    Please help me out with this. I have this small application to load txt files into a sql db and it works fine with sqlite. When I ported to SQL I started getting 'parameter already declared' errors.. If anyone can help me reorganize this code, it would be great! I need to get the parameter definitions outside of the loops or something.. using System; using System.Data; using System.Data.SQLite; using System.IO; using System.Text.RegularExpressions; using System.Threading; using System.Collections.Generic; using System.Linq; using System.Data.SqlClient; namespace JohnDeereCMMDataParser { internal class Program { public static List<string> GetImportedFileList() { List<string> ImportedFiles = new List<string>(); using (SqlConnection connect = new SqlConnection(@"Server=FRXSQLDEV;Database=RX_CMMData;Integrated Security=YES")) { connect.Open(); using (SqlCommand fmd = connect.CreateCommand()) { fmd.CommandText = @"SELECT FileName FROM Import;"; fmd.CommandType = CommandType.Text; SqlDataReader r = fmd.ExecuteReader(); while (r.Read()) { ImportedFiles.Add(Convert.ToString(r["FileName"])); } } } return ImportedFiles; } private static void Main(string[] args) { using (SqlConnection con = new SqlConnection(@"Server=FRXSQLDEV;Database=RX_CMMData;Integrated Security=YES")) { con.Open(); using (SqlCommand insertCommand = con.CreateCommand()) { Console.WriteLine("Connecting to SQL server..."); SqlCommand cmdd = con.CreateCommand(); string[] files = Directory.GetFiles(@"C:\Documents and Settings\js91162\Desktop\", "R.txt*", SearchOption.AllDirectories); insertCommand.Parameters.Add(new SqlParameter("@FeatType", DbType.String)); insertCommand.Parameters.Add(new SqlParameter("@FeatName", DbType.String)); insertCommand.Parameters.Add(new SqlParameter("@Value", DbType.String)); insertCommand.Parameters.Add(new SqlParameter("@Actual", DbType.Decimal)); insertCommand.Parameters.Add(new SqlParameter("@Nominal", DbType.Decimal)); insertCommand.Parameters.Add(new SqlParameter("@Dev", DbType.Decimal)); insertCommand.Parameters.Add(new SqlParameter("@TolMin", DbType.Decimal)); insertCommand.Parameters.Add(new SqlParameter("@TolPlus", DbType.Decimal)); insertCommand.Parameters.Add(new SqlParameter("@OutOfTol", DbType.Decimal)); List<string> ImportedFiles = GetImportedFileList(); foreach (string file in files.Except(ImportedFiles)) { var FileNameExt1 = Path.GetFileName(file); cmdd.Parameters.Add(new SqlParameter("@FileExt", FileNameExt1)); cmdd.CommandText = @" IF (EXISTS (SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'RX_CMMData' AND TABLE_NAME = 'Import')) BEGIN SELECT COUNT(*) FROM Import WHERE FileName = @FileExt; END"; int count = Convert.ToInt32(cmdd.ExecuteScalar()); con.Close(); con.Open(); if (count == 0) { Console.WriteLine("Parsing CMM data for SQL database... Please wait."); insertCommand.CommandText = @" INSERT INTO Import (FeatType, FeatName, Value, Actual, Nominal, Dev, TolMin, TolPlus, OutOfTol, PartNumber, CMMNumber, Date, FileName) VALUES (@FeatType, @FeatName, @Value, @Actual, @Nominal, @Dev, @TolMin, @TolPlus, @OutOfTol, @PartNumber, @CMMNumber, @Date, @FileName);"; string FileNameExt = Path.GetFullPath(file); string RNumber = Path.GetFileNameWithoutExtension(file); string RNumberE = RNumber.Split('_')[0]; string RNumberD = RNumber.Split('_')[1]; string RNumberDate = RNumber.Split('_')[2]; DateTime dateTime = DateTime.ParseExact(RNumberDate, "yyyyMMdd", Thread.CurrentThread.CurrentCulture); string cmmDate = dateTime.ToString("dd-MMM-yyyy"); string[] lines = File.ReadAllLines(file); bool parse = false; foreach (string tmpLine in lines) { string line = tmpLine.Trim(); if (!parse && line.StartsWith("Feat. Type,")) { parse = true; continue; } if (!parse || string.IsNullOrEmpty(line)) { continue; } Console.WriteLine(tmpLine); foreach (SqlParameter parameter in insertCommand.Parameters) { parameter.Value = null; } string[] values = line.Split(new[] { ',' }); for (int i = 0; i < values.Length - 1; i++) { SqlParameter param = insertCommand.Parameters[i]; if (param.DbType == DbType.Decimal) { decimal value; param.Value = decimal.TryParse(values[i], out value) ? value : 0; } else { param.Value = values[i]; } } } insertCommand.Parameters.Add(new SqlParameter("@PartNumber", RNumberE)); insertCommand.Parameters.Add(new SqlParameter("@CMMNumber", RNumberD)); insertCommand.Parameters.Add(new SqlParameter("@Date", cmmDate)); insertCommand.Parameters.Add(new SqlParameter("@FileName", FileNameExt)); // insertCommand.ExecuteNonQuery(); } } Console.WriteLine("CMM data successfully imported to SQL database..."); } con.Close(); } } } } FYI - the PartNumber, CMMNumber, Date, etc at the bottom are pulled from the file name and I need it in the table next to each respective record.

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  • Javascript: selfmade methods not working correctly

    - by hdr
    Hi everyone, I tried to figure this out for some days now, I tried to use my own object to sort of replace the global object to reduce problems with other scripts (userscripts, chrome extensions... that kind of stuff). However I can't get things to work for some reason. I tried some debugging with JSLint, the developer tools included in Google Chrome, Firebug and the integrated schript debugger in IE8 but there is no error that explains why it doesn't work at all in any browser I tried. I tried IE 8, Google Chrome 10.0.612.3 dev, Firefox 3.6.13, Safari 5.0.3 and Opera 11. So... here is the code: HTML: <!DOCTYPE HTML> <html manifest="c.manifest"> <head> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta charset="utf-8"> <!--[if IE]> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/chrome-frame/1/CFInstall.min.js"></script> <script src="https://ie7-js.googlecode.com/svn/version/2.1(beta4)/IE9.js">IE7_PNG_SUFFIX=".png";</script> <![endif]--> <!--[if lt IE 9]> <script src="js/lib/excanvas.js"></script> <script src="https://html5shiv.googlecode.com/svn/trunk/html5.js"></script> <![endif]--> <script src="js/data.js"></script> </head> <body> <div id="controls"> <button onclick="MYOBJECTis.next()">Next</button> </div> <div id="textfield"></div> <canvas id="game"></canvas> </body> </html> Javascript: var that = window, it = document, k = Math.floor; var MYOBJECTis = { aresizer: function(){ // This method looks like it doesn't work. // It should automatically resize all the div elements and the body. // JSLint: no error (execpt for "'window' is not defined." which is normal since // JSLint does nor recognize references to the global object like "window" or "self" // even if you assume a browser) // Firebug: no error // Chrome dev tools: no error // IE8: that.documentElement.clientWidth is null or not an object "use strict"; var a = that.innerWidth || that.documentElement.clientWidth, d = that.innerHeight || that.documentElement.clientHeight; (function() { for(var b = 0, c = it.getElementsByTagName("div");b < c.length;b++) { c.style.width = k(c.offsetWidth) / 100 * k(a); c.style.height = k(c.offsetHight) / 100 * k(d); } }()); (function() { var b = it.getElementsByTagName("body"); b.width = a; b.height = d; }()); }, next: function(){ // This method looks like it doesn't work. // It should change the text inside a div element // JSLint: no error (execpt for "'window' is not defined.") // Firebug: no error // Chrome dev tools: no error // IE8: no error (execpt for being painfully slow) "use strict"; var b = it.getElementById("textfield"), a = [], c; switch(c !== typeof Number){ case true: a[1] = ["HI"]; c = 0; break; case false: return Error; default: b.innerHtml = a[c]; c+=1; } } }; // auto events (function(){ "use strict"; that.onresize = MYOBJECTis.aresizer(); }()); If anyone can help me out with this I would very much appreciate it. EDIT: To answer the question what's not working I can just say that no method I showed here is working at all and I don't know the cause of the problem. I also tried to clean up some of the code that has most likely nothing to do with it. Additional information is in the comments inside the code.

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  • SQLAuthority News – The Best Quotes of “Who Wrote This?” Contest

    - by pinaldave
    I am a frequent reader of Brent Ozar PLF, it is one of my favorite blogs. A recent post announced a “Who Wrote This?” contest to see if readers could tell their three contributors apart based on some writing samples. Here are my favorite lines from the sample paragraphs, from each of the three “mystery authors.” Topic 1: Working with Bad Managers Mystery Author A – “Working with bad managers means working against my own happiness, and I’ve come to learn that there’s no changing bad managers.” I love this line because, as anyone who has had a bad manager knows, often a lot of self-doubt rises up. We all have to remember that sometimes the problem is out of our control. Mystery Author B – “Mentor your manager just like you would mentor a junior DBA.” Having a bad manager can be extremely depressing, and we often feel out of control. But we all need to remember that our work is a two-way street, and that sometimes we can subtly influence those above us. Mystery Author C – “The trick to working for all bad managers is to remember that they aren’t your parent. Take charge of your career.” We all also need to learn not to play the blame game. Would you rather stay in a place where you are unhappy, or would you rather take charge of your life? I hope most people would pick the latter. Topic 2: Working with Remote Teams Mystery Author A – “Like almost anything else the key is to make sure that everyone on the team has an understanding of how and when communication will occur.” Communication is so important. I cannot over emphasize how much. And this one line captures how I feel and even communicates the idea clearly! Mystery Author B – “The key to remote team success is verifiable trust: feeling confident that invisible team members are doing the right amount of the right thing at the right time.” I think this line not only captures the key aspects of remote work – verifiable work and trust – but there were so many lines that followed that I loved and could not fit here. The whole paragraph is a list for successful remote work. Everyone could benefit from reading it. Mystery Author C – “What seems clear, precise, and specific in one time zone comes across as vague, soupy, and just plain weird in another.” You know what? I just love this description. The author is right – sometimes vague e-mails really do seem soupy and weird! Topic 3: Working with Your Nemesis Mystery Author A – “Every job is temporary, but your reputation stays with you.” Everyone needs to remember this. The workplace is meant to be a professional arena, and many people have the opinion that work is temporary and disposable. No one wants to work with co-worker like that. Mystery Author B – “Unhealthy conflict is going to lead to leaving three week old tuna fish sandwiches in someone’s desk drawer.” Sometimes humor really is the best policy! Mystery Author C – “Oh no, it’s that guy.” This might seem like a weird phrase to choose as my favorite from an entire paragraph. But the whole piece was written in the form of a story of co-workers getting drunk and plotting against a nemesis. It was too funny to overlook, but too long to post here. A must read! Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, SQLAuthority News, T SQL, Technology

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  • List of Upcoming Appearances

    - by Chris Gardner
    Greetings. I know I have been in work sponsored hiding lately. We are working furiously on a beta project to secure a contract, and I can't really talk about it yet. Hopefully, the contracts will be soon signed. Not only will we then have money, but I can talk about all this really cool tech with which I have been playing. However, since the contract is not signed, I need to bring you people up to date with where I will be during the summer. Let's face it, you can't be a speaker / blogger without pandering to shameless self-promotion. First, I will, once again, be staffing the Hands-on-Labs at TechEd North America. Unfortunately, TechEd North America is already sold out for this year. However, if you're already going, drop by the labs and say Hi. Also, keep an eye on Twitter to track me throughout the event. Also, look for a post in a few hours with my specific picks for what content I'm looking forward to seeing this year. Immediately following TechEd North America, I will be flying into Knoxville to speak at CodeStock. I will be presenting my introduction and intermediate Xbox 360 development talks. There are a TON of great content at CodeStock this year, but there are only about 50 tickets left. After that whirlwind of work, things settle for awhile. That means I'm available to speak at your User Group, luncheon, bowling league, birthday party, anniversary, or bat mitzvah. Mid August brings us to That Conference. This one is going to be a blast. If you haven't heard of That Conference yet, you should really check it out. This will also be my introduction and intermediate Xbox 360 development talks. This is a new conference, and it looks like it will be a great one. Finally, we will turn our attention to DevLink. DevLink has the distinction of picking up my newest talk, Creating Stereoscopic 3D Graphics in XNA. On top of that, I'm giving an general Xbox 360 and Windows Phone 7 talk. DevLink has added an new "XNA and Kinect" track, so there will me a ton of great game content. That should bring us through the summer. As I solidify the Stereoscopic talk, look for some content on that to creep up on here. I will say it's the first topic I've played around with that is easier in 3D than 2D. Also, the organizers of Alabama Code Camp are still trying to reschedule the event. When that happens, I'll get that information out. Also, we are looking to expand our development team. If you are interested in working for / with me, keep an eye on the T & W Operations website. I know we're immediately looking for a junior level developer, but I think a few higher level position may come up soon. You MUST apply through the website, but drop me a personal line if you do apply. I'll keep an eye out for the application.

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  • It’s the thought that counts…

    - by Tony Davis
    I recently finished editing a book called Tribal SQL, and it was a fantastic experience. It’s a community-sourced book written by first-timers. Fifteen previously unpublished authors contributed one chapter each, with the seemingly simple remit to write about “what makes them passionate about working with SQL Server, something that all SQL Server DBAs and developers really need to know”. Sure, some of the writing skills were a bit rusty as one would expect from busy people, but the ideas and energy were sheer nectar. Any seasoned editor can deal easily with the problem of fixing the output of untrained writers. We can handle with the occasional technical error too, which is why we have technical reviewers. The editor’s real job is to hone the clarity and flow of ideas, making the author’s knowledge and experience accessible to as many others as possible. What the writer needs to bring, on the other hand, is enthusiasm, attention to detail, common sense, and a sense of the person behind the writing. If any of these are missing, no editor can fix it. We can see these essential characteristics in many of the more seasoned and widely-published writers about SQL. To illustrate what I mean by enthusiasm, or passion, take a look at the work of Laerte Junior or Fabiano Amorim. Both authors have English as a second language, but their energy, enthusiasm, sheer immersion in a technology and thirst to know more, drives them, with a little editorial help, to produce articles of far more practical value than one can find in the “manuals”. There’s the attention to detail of the likes of Jonathan Kehayias, or Paul Randal. Read their work and one begins to understand the knowledge coupled with incredible rigor, the willingness to bend and test every piece of advice offered to make sure it’s correct, that marks out the very best technical writing. There’s the common sense of someone like Louis Davidson. All writers, including Louis, like to stretch the grey matter of their readers, but some of the most valuable writing is that which takes a complicated idea, or distils years of experience, and expresses it in a way that sounds like simple common sense. There’s personality and humor. Contrary to what you may have been told, they can and do mix well with technical writing, as long as they don’t become a distraction. Read someone like Rodney Landrum, or Phil Factor, for numerous examples of articles that teach hard technical lessons but also make you smile at least twice along the way. Writing well is not easy and it takes a certain bravery to expose your ideas and knowledge for dissection by others, but it doesn’t mean that writing should be the preserve only of those trained in the art, or best left to the MVPs. I believe that Tribal SQL is testament to the fact that if you have passion for what you do, and really know your topic then, with a little editorial help, you can write, and people will learn from what you have to say. You can read a sample chapter, by Mark Rasmussen, in this issue of Simple-Talk and I hope you’ll consider checking out the book (if you needed any further encouragement, it’s also for a good cause, Computers4Africa). Cheers, Tony  

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  • The theory of evolution applied to software

    - by Michel Grootjans
    I recently realized the many parallels you can draw between the theory of evolution and evolving software. Evolution is not the proverbial million monkeys typing on a million typewriters, where one of them comes up with the complete works of Shakespeare. We would have noticed by now, since the proverbial monkeys are now blogging on the Internet ;-) One of the main ideas of the theory of evolution is the balance between random mutations and natural selection. Random mutations happen all the time: millions of mutations over millions of years. Most of them are totally useless. Some of them are beneficial to the evolved species. Natural selection favors the beneficially mutated species. Less beneficial mutations die off. The mutated rabbit doesn't have to be faster than the fox. It just has to be faster than the other rabbits.   Theory of evolution Evolving software Random mutations happen all the time. Most of these mutations are so bad, the new species dies off, or cannot reproduce. Developers write new code all the time. New ideas come up during the act of writing software. The really bad ones don't get past the stage of idea. The bad ones don't get committed to source control. Natural selection favors the beneficial mutated species Good ideas and new code gets discussed in group during informal peer review. Less than good code gets refactored. Enhanced code makes it more readable, maintainable... A good set of traits makes the species superior to others. It becomes widespread A good design tends to make it easier to add new features, easier to understand the current implementations, easier to optimize for performance...thus superior. The best designs get carried over from project to project. They appear in blogs, articles and books about principles, patterns and practices.   Of course the act of writing software is deliberate. This can hardly be called random mutations. Though it sometimes might seem that code evolves through a will of its own ;-) Does this mean that evolving software (evolution) is better than a big design up front (creationism)? Not necessarily. It's a false idea to think that a project starts from scratch and everything evolves from there. Everyone carries his experience of what works and what doesn't. Up front design is necessary, but is best kept simple and minimal, just enough to get you started. Let the good experiences and ideas help to drive the process, whether they come from you or from others, from past experience or from the most junior developer on your team. Once again, balance is the keyword. Balance design up front with evolution on a daily basis. How do you know what balance is right? Through your own experience of what worked and what didn't (here's evolution again). Notes: The evolution of software can quickly degenerate without discipline. TDD is a discipline that leaves little to chance on that part. Write your test to describe the new behavior. Write just enough code to make it behave as specified. Refactor to evolve the code to a higher standard. The responsibility of good design rests continuously on each developers' shoulders. Promiscuous pair programming helps quickly spreading the design to the whole team.

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  • The inevitable Hello World post!

    - by brendonpage
    Greetings to anyone reading this! This is my first of hopefully many posts. I would like to use this post to introduce myself and to let you know what to expect from this blog in future. Okay so a bit about myself. In case you missed the name of this blog, my name is Brendon Page! I am a Software Developer from South Africa and work for a small company who’s main focus is producing software for the kitchen cupboard industry, although from time to time we do produce custom solutions for other industries. I work in a small team of 3, including myself, and am fortunate enough to work from home! I have been involved in IT since 1996, which is when I got my first PC, and started working as a junior programmer in 2003. Outside of work I enjoy playing squash, PC Games and of course LANing with my friends. If I get any free time between all of that I will usually dedicate some of it to a personal project, these are mainly prototypes for an idea I have had or for something that could be useful at work. I was in 2 minds on whether to include a photo of myself. The reason for this was because while I was looking for a suitable photo to use, it dawned on me how much time I dedicate to pulling funny faces in photos! I also realized how little I shave, which I blame completely on working form home. So after much debate here I am, funny face, beard and all!   Now that you know a bit about me lets move onto what expect from this blog. I work predominantly with Microsoft technologies so most if not all of my posts will be related to something Microsoft. Since most of my job entails Software Development you can expect a lot of posts which will deal with the .NET Framework. I am currently working on a large Silverlight project, so my first few posts will be targeted at in that direction. I will be striving to make the content of my posts as useful as possible from both an explanation and code perspective, I aim to include a working solution for every post, which I will put up on my skydrive for download. Here is what I have planned for my next few posts: Where did my session variables go?  Here I will take you through the lessons I learnt the hard way about the ASP.NET session. I am not going to go into to much depth in this post, as there is already a lot of information available on it. I mainly want to cover it in an effort to keep the scope creep of my posts to a minimum, some the solutions I upload will use it and I would like to have a post that I can reference to explain why I am doing something a certain way. Uploading files through SIlverlight Again there is a lot of existing information on this topic, so I wont be going into to much depth, but I will be using the solution from this as a base for my next post. Generating and Displaying DeepZoom images dynamically in Silverlight Well the title pretty much speaks for it’s self on this one. As I mentioned I will be building off the solution that I create in my ‘Uploading files through Silverlight’ post. Securing DeepZoom images using a custom implementation of the MultiScaleTileSource In this post I will look at the privacy issue surrounding the default usage of DeepZoom images in Silverlight and how to overcome it. This makes the use of DeepZoom in privacy conscious applications more viable. Thanks to anyone who actually read this post! I look forward to producing more which will hopefully be helpful to you.

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  • SharePoint For Newbie Developers: Code Scope

    - by Mark Rackley
    So, I continue to try to come up with diagrams and information to help new SharePoint developers wrap their heads around this SharePoint beast, especially when those newer to development are on my team. To that end, I drew up the below diagram to help some of our junior devs understand where/when code is being executed in SharePoint at a high level. Note that I say “High Level”… This is a simplistic diagram that can get a LOT more complicated if you want to dive in deeper.  For the purposes of my lesson it served its purpose well. So, please no comments from you peanut gallery about information 3 levels down that’s missing unless it adds to the discussion.  Thanks So, the diagram below details where code is executed on a page load and gives the basic flow of the page load. There are actually many more steps, but again, we are staying high level here. I just know someone is still going to say something like “Well.. actually… the dlls are getting executed when…”  Anyway, here’s the diagram with some information I like to point out: Code Scope / Where it is executed So, looking at the diagram we see that dlls and XSL are executed on the server and that JavaScript/jQuery are executed on the client. This is the main thing I like to point out for the following reasons: XSL (for the most part) is faster than JavaScript I actually get this question a lot. Since XSL is executed on the server less data is getting passed over the wire and a beefier machine (hopefully) is doing the processing. The outcome of course is better performance. When You are using jQuery and making Web Service calls you are building XML strings and sending them to the server, then ALL the results come back and the client machine has to parse through the XML and use what it needs and ignore the rest (and there is a lot of garbage that comes back from SharePoint Web Service calls). XSL and JavaScript cannot work together in the same scope Let me clarify. JavaScript can send data back to SharePoint in postbacks that XSL can then use. XSL can output JavaScript and initiate JavaScript variables.  However, XSL cannot call a JavaScript method to get a value and JavaScript cannot directly interact with XSL and call its templates. They are executed in there scope only. No crossing of boundaries here. So, what does this all mean? Well, nothing too deep. This is just some basic fundamental information that all SharePoint devs need to understand. It will help you determine what is the best solution for your specific development situation and it will help the new guys understand why they get an error when trying to call a JavaScript Function from within XSL.  Let me know if you think quick little blogs like this are helpful or just add to the noise. I could probably put together several more that are similar.  As always, thanks for stopping by, hope you learned something new.

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  • C#, Delegates and LINQ

    - by JustinGreenwood
    One of the topics many junior programmers struggle with is delegates. And today, anonymous delegates and lambda expressions are profuse in .net APIs.  To help some VB programmers adapt to C# and the many equivalent flavors of delegates, I walked through some simple samples to show them the different flavors of delegates. using System; using System.Collections.Generic; using System.Linq; namespace DelegateExample { class Program { public delegate string ProcessStringDelegate(string data); public static string ReverseStringStaticMethod(string data) { return new String(data.Reverse().ToArray()); } static void Main(string[] args) { var stringDelegates = new List<ProcessStringDelegate> { //========================================================== // Declare a new delegate instance and pass the name of the method in new ProcessStringDelegate(ReverseStringStaticMethod), //========================================================== // A shortcut is to just and pass the name of the method in ReverseStringStaticMethod, //========================================================== // You can create an anonymous delegate also delegate (string inputString) //Scramble { var outString = inputString; if (!string.IsNullOrWhiteSpace(inputString)) { var rand = new Random(); var chs = inputString.ToCharArray(); for (int i = 0; i < inputString.Length * 3; i++) { int x = rand.Next(chs.Length), y = rand.Next(chs.Length); char c = chs[x]; chs[x] = chs[y]; chs[y] = c; } outString = new string(chs); } return outString; }, //========================================================== // yet another syntax would be the lambda expression syntax inputString => { // ROT13 var array = inputString.ToCharArray(); for (int i = 0; i < array.Length; i++) { int n = (int)array[i]; n += (n >= 'a' && n <= 'z') ? ((n > 'm') ? 13 : -13) : ((n >= 'A' && n <= 'Z') ? ((n > 'M') ? 13 : -13) : 0); array[i] = (char)n; } return new string(array); } //========================================================== }; // Display the results of the delegate calls var stringToTransform = "Welcome to the jungle!"; System.Console.ForegroundColor = ConsoleColor.Cyan; System.Console.Write("String to Process: "); System.Console.ForegroundColor = ConsoleColor.Yellow; System.Console.WriteLine(stringToTransform); stringDelegates.ForEach(delegatePointer => { System.Console.WriteLine(); System.Console.ForegroundColor = ConsoleColor.Cyan; System.Console.Write("Delegate Method Name: "); System.Console.ForegroundColor = ConsoleColor.Magenta; System.Console.WriteLine(delegatePointer.Method.Name); System.Console.ForegroundColor = ConsoleColor.Cyan; System.Console.Write("Delegate Result: "); System.Console.ForegroundColor = ConsoleColor.White; System.Console.WriteLine(delegatePointer(stringToTransform)); }); System.Console.ReadKey(); } } } The output of the program is below: String to Process: Welcome to the jungle! Delegate Method Name: ReverseStringStaticMethod Delegate Result: !elgnuj eht ot emocleW Delegate Method Name: ReverseStringStaticMethod Delegate Result: !elgnuj eht ot emocleW Delegate Method Name: b__1 Delegate Result: cg ljotWotem!le une eh Delegate Method Name: b__2 Delegate Result: dX_V|`X ?| ?[X ]?{Z_X!

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