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• Writing the tests for FluentPath

  Writing the tests for FluentPath is a challenge. The library is a wrapper around a legacy API (System.IO) that wasnt designed to be easily testable. If it were more testable, the sensible testing methodology would be to tell System.IO to act against a mock file system, which would enable me to verify that my code is doing the expected file system operations without having to manipulate the actual, physical file system: what we are testing here is FluentPath, not System.IO. Unfortunately, that...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Myths: Does Deleting the Cache Actually Speed Up Your PC?

  - by The Geek

  Every time you ask somebody with a reasonable level of tech skills what you should do to speed up your PC, they start jabbering on about running ccleaner and clearing the cache. But does the act of clearing a cache really speed things up? Nope. Most people assume that all temporary files are just clutter created by lousy applications, but that isn’t actually the truth. Cache files are created by apps to store commonly used information so it doesn’t have to be generated or downloaded again.    

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• Who created that user?

  - by AaronBertrand

  Twitter has provided some great fodder for blog content lately. And twice this week, I've found an excuse to take advantage of the default trace. Tonight @meltondba asked: I'm trying to find who created a user act in a DB It is true, SQL Server doesn't really keep track of who created objects, such as user accounts in a database. You can get some of this information from the default trace, though, since it tracks EventClass 109 (Audit Add DB User). If you run this code: USE [master] ; GO CREATE LOGIN...(read more)

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• Enablement 2.0 Get Specialized!

  - by mseika

  Oracle PartnerNetwork Specialized program is releasing new certifications on our latest products, and partners are invited to be the first candidates. A Certification exam goes through a rigorous review process called a beta period. Here are a few advantages of taking a Beta Exam: Certification exams during the beta period count towards your Company Specialization. Most new Certified Specialist Exams have no training requirement. Beta Exams Vouchers are available in limited quantity, so request a voucher today by contacting the Partner Enablement Team and act fast to reserve your test from the list below. For more information click here. 

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• In some games, we just let the main() loop be the Player object or Table object?

  - by ????

  I was thinking that let's say if there is a game of Blackjack or MasterMind, then we should have a class called Dealer or ComputerPal, which is how the computer interact with us (as a dealer for Blackjack or as the person giving hints for MasterMind). And then there should be a Player object, and the way to play one game is aPlayer.playGame but I noticed that a book was just using the main() loop to act as the player (or as the Controller of the game), calling the Dealer methods to dealer the cards, ask for player's action, etc... 1) Is this just a lazy way to model all the proper objects? 2) If more objects are to be added, who should call the aDealer.dealCards and then ask for aPlayer.askForAction? (because it is strange to let the Player handle all the logical steps). Should there be a Table object that handle all these logic and then to play one round of game, use aTable.playGame? What is a good object design for such game?

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• Application window as polygon texture?

  - by nekome

  Is there a way, or method, to have some application rendered as texture in 3D scene on some polygon, and also have full interactivity with it? I'm talking about Windows platform, and maybe OpenGL but I guess it doesn't matter is it OGL or DX. For example: I run Calculator using WINAPI functions (preferably hidden, not showing on desktop) and I want to render it inside 3D scene on some polygon but still be able to type or click buttons and have it respond. My idea to realize this is to have WINAPI take screenshot (or render it to memory if possible) of that Calculator and pass it to OpenGL as texture for each frame (I'm experimenting with SDL through pygame) and for mouse interactivity to use coordination translation and calculate where on application window it would act, and then use WINAPI functions such as SetCursorPos to set cursor ant others to simulate click or something else. I haven't found any tutorials with topic similar to this one. Am I on a right track? Is there better way to do this if possible at all?

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• Is there a name for a mini class that is not a struct?

  - by user1555300

  I have a couple of mini-classes that are not nested classes. They need to be passed around between different larger classes to use. In a way, they act like Tuples, storing fields in them. For example, [Serializable] public class TransformObject { public GameObject GameObj; public tk2dCameraAnchor Anchor; public ManagerTransform MTransform; } I have a few of them for my game I have been developing. They have to be classes, not struct because the Unity3d editor will not show in the inspector if so. I was just wondering if there is a official name for these kind of mini classes.

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• Diminishing Returns - When is it Time to Take Your Website Live?

  Being a perfectionist is not always the best way to be. Especially in a world where being first to market isn't the worst thing ever. Like many things in life, deciding when to take your new website live is a fine balancing act. The sooner you can start building up a readership or client base, the better; but you risk serious damage to your site's reputation if its functional and technical performance is below par. So when is the right time?

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• How to Mock HttpWebRequest and HttpWebResponse using the Moq Framework?

  - by Nicholas

  How do you use the Moq Framework to Mock HttpWebRequest and HttpWebResponse in the following Unit Test? [Test] public void Verify_That_SiteMap_Urls_Are_Reachable() { // Arrange - simplified Uri uri = new Uri("http://www.google.com"); // Act HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri); HttpWebResponse response = (HttpWebResponse)request.GetResponse(); // Asset Assert.AreEqual("OK", response.StatusCode.ToString()); }

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• How do I use PackageManager.addPreferredActivity()?

  - by afonseca

  In SDK 1.5 I was using the PackageManager class to set the preferred home screen to be my app using PackageManager.addPackageToPreferred(). In the new SDK (using 2.1) this has been deprecated so I'm trying to use addPreferredActivity() for the same result but it's not working as expected. Some necessary background. I'm writing a lock screen replacement app so I want the home key to launch my app (which will already be running, hence having the effect of disabling the key). When the user "unlocks" the screen I intend to restore the mapping so everything works as normal. In my AndroidManifest.xml I have: <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> <category android:name="android.intent.category.HOME"/> <category android:name="android.intent.category.DEFAULT" /> </intent-filter> <uses-permission android:name="android.permission.SET_PREFERRED_APPLICATIONS"> </uses-permission> In my code I have the following snippet: // Set as home activity // This is done so we can appear to disable the Home key. PackageManager pm = getPackageManager(); //pm.addPackageToPreferred(getPackageName()); IntentFilter filter = new IntentFilter("android.intent.action.MAIN"); filter.addCategory("android.intent.category.HOME"); filter.addCategory("android.intent.category.DEFAULT"); ComponentName[] components = new ComponentName[] { new ComponentName("com.android.launcher", ".Launcher") }; Context context = getApplicationContext(); ComponentName component = new ComponentName(context.getPackageName(), MyApp.class.getName()); pm.clearPackagePreferredActivities("com.android.launcher"); pm.addPreferredActivity(filter, IntentFilter.MATCH_CATEGORY_EMPTY, components, component); The resulting behavior is that the app chooser comes up when I press the Home key, which indicates that the clearPackagePreferredActivities() call worked but my app did not get added as the preferred. Also, the first line in the log below says something about "dropping preferred activity for Intent": 04-06 02:34:42.379: INFO/PackageManager(1017): Result set changed, dropping preferred activity for Intent { act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10200000 } type null 04-06 02:34:42.379: INFO/ActivityManager(1017): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10200000 cmp=android/com.android.internal.app.ResolverActivity } Does anyone know what this first log message means? Maybe I'm not using the API correctly, any ideas? Any help would be greatly appreciated.

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• Node.js as a custom (streaming) upload handler for Django

  - by Gijs

  I want to build an upload-centric app using Django. One way to do this is with nginx's upload module (nonblocking) but it has its problems. Node.js is supposed to be a good candidate for this type of application. But how can I make node.js act as an upload_handler() for Django (http://docs.djangoproject.com/en/1.1/topics/http/file-uploads/#modifying-upload-handlers-on-the-fly) I'm not sure where to look for examples?

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• Is it possible to programmatically set the state of the shift and control keys?

  - by Stephen Harrison

  The reason I am asking is that I am thinking of building a foot switch to act as shift and control keys - well two switches, one for each foot. I'm planning on using the Arduino for this and writing a small C# application to detect when the switch has been pressed that would then set the state of shift or control. I would rather not have to write a keyboard driver for the Arduino as I would like it to do other things as well.

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• Asp.net ajax library preview 6 (Ajax toolkits inside a dataview)

  - by Thurein

  Hi, I was using the sys.ui.dataview, ado.net data services and a html page to provide an edit page. It was working fine, but when I wanted to apply some ACT features, for instance watermark or autocomplete on a textbox (input) within the dataview div, its not applied. However, when I move that text box, out of the div, it is working fine and the watermark effect was applied. Am I doing something wrong or any advice ? Thanks

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• Accessing UI context from asynch task

  - by cdonner

  I came across this android example that runs an AsyncTask from a UI thread. The class ExportDatabaseTask is declared and instantiated in the Activity, and apparently it is possible to reference the activity's UI context from the onPreExecute and onPostExecute events, like this: public class ManageData extends Activity { private ExportDatabaseTask exportDatabaseTask; [...] @Override public void onCreate(final Bundle savedInstanceState) { [...] ManageData.this.exportDatabaseTask = new ExportDatabaseTask(); ManageData.this.exportDatabaseTask.execute(); [...] } private class ExportDatabaseTask extends AsyncTask<String, Void, Boolean> { private final ProgressDialog dialog = new ProgressDialog(ManageData.this); protected void onPreExecute() { this.dialog.setMessage("Exporting database..."); this.dialog.show(); } protected Boolean doInBackground(final String... args) { [...] } protected void onPostExecute(final Boolean success) { if (this.dialog.isShowing()) { this.dialog.dismiss(); } } } I am trying to refactor this so that the ExportDatabaseTask is declared in another class that is not the Activity, for various reasons, and I can't quite figure out how to make it work. I am lacking some basic Java concepts here, which I readily admit. Specifically, myActivity is null in onPreExecute(). Why is that? public void onClick(View v) { Exporter ex = new Exporter(getApplicationContext(), ActivityMain.this); ex.exportDatabaseTask.execute(); } public class Exporter { public ExportDatabaseTask exportDatabaseTask; public Exporter(Context ctx, ActivityMain act) { myContext = ctx; myActivity = act; this.exportDatabaseTask = new ExportDatabaseTask(); } public class ExportDatabaseTask extends AsyncTask<Void, Void, Boolean> { private final ProgressDialog dialog = new ProgressDialog(myContext); // can use UI thread here? protected void onPreExecute() { // ====> this throws a Nullpointer exception: myActivity.dialog.setMessage("Exporting database..."); myActivity.dialog.show(); } protected Boolean doInBackground(final Void... args) { } protected void onPostExecute(final Boolean success) { if (myActivity.dialog.isShowing()) { myActivity.dialog.dismiss(); } } } }

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• How to dismiss keyboard for UITextView with return key?

  - by iPhoney

  In IB's library, the introduction tells us that when the return key is pressed, the keyboard for UITextView will disappear. But actually the return key can only act as '\n'. I can add a button and use [txtView resignFirstResponder] to hide the keyboard. But is there a way to add the action for the return key in keyboard so that I needn't add another button.

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• How do you fix an SVN 409 Conflict Error

  - by NerdStarGamer

  I used to use SVN 1.4 on OS X Leopard and everything was fine. A couple of weeks ago I installed a fresh copy of OS X 10.6. The version of SVN that comes with Snow Leopard is 1.6.5. I went ahead and built my own copy with 1.6.6. I'm using the built in apache server and just hosting repositories locally. Everything appeared to work fine until I actually tried to commit something. Everytime I try to commit a change, I get the following message: Transmitting file data .svn: Commit failed (details follow): svn: MERGE of '/svn/svn2': 409 Conflict (http://localhost) This happens with my old repositories, so I created a couple of new ones. Same deal. I also tried using the 1.6.5 version that comes with the system...same. Finally, I tried upgrading to the latest stable SVN (1.6.9) and still got the same problem. The Apache error logs the following for each failed commit: [Mon Mar 29 19:53:10 2010] [error] [client ::1] Could not MERGE resource "/svn/svn2/!svn/act/d399326f-c20f-424f-bb68-3bb40503b5b1" into "/svn/svn2". [409, #0] [Mon Mar 29 19:53:10 2010] [error] [client ::1] An error occurred while committing the transaction. [409, #2] [Mon Mar 29 19:53:10 2010] [error] [client ::1] Can't open directory '/usr/local/svn/svn2/db/transactions/5-6.txn/\xeb\xa9\x0f\x1f': No such file or directory [409, #2] [Mon Mar 29 19:53:11 2010] [error] [client ::1] Could not DELETE /svn/svn2/!svn/act/d399326f-c20f-424f-bb68-3bb40503b5b1. [500, #0] [Mon Mar 29 19:53:11 2010] [error] [client ::1] could not open transaction. [500, #2] [Mon Mar 29 19:53:11 2010] [error] [client ::1] Can't open file '/usr/local/svn/svn2/db/transactions/5-6.txn/props': No such file or directory [500, #2] And from the access log: ::1 - - [30/Mar/2010:13:02:20 -0400] "OPTIONS /svn/svn2 HTTP/1.1" 401 401 ::1 - user [30/Mar/2010:13:02:20 -0400] "OPTIONS /svn/svn2 HTTP/1.1" 200 188 ::1 - user [30/Mar/2010:13:02:20 -0400] "PROPFIND /svn/svn2 HTTP/1.1" 207 647 ::1 - user [30/Mar/2010:13:02:20 -0400] "PROPFIND /svn/svn2 HTTP/1.1" 207 647 ::1 - user [30/Mar/2010:13:02:20 -0400] "PROPFIND /svn/svn2/!svn/vcc/default HTTP/1.1" 207 398 ::1 - user [30/Mar/2010:13:02:20 -0400] "PROPFIND /svn/svn2/!svn/bln/6 HTTP/1.1" 207 449 ::1 - user [30/Mar/2010:13:02:20 -0400] "REPORT /svn/svn2/!svn/vcc/default HTTP/1.1" 200 1172 Curiously, the commit does actually commit the changes, but the working copy doesn't see that and everything gets screwy. I've tried to Google every variation I can think of for this problem, but the search results are pretty much useless. I'm not using TortoiseSVN or anything special and commits fail on a new repository, so I know it's not a problem with my old repos. Any help would be greatly appreciated.

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• Certificates Validations Issues

  - by user298331

  Hi All, i am facing some issues related certificates.i need some help to resolve these issues. Requirements : security mode="TransportWithMessageCredential" binding binding name="basicHttpEndpointBinding" certificateValidationMode ="ChainTrust" revocationMode="Online" Certificates : Service Cerificates : Transportlevel : XXXX.cer my cerificate name is my system DNS name and it is having root node i.e RootTrnCA.cer this is used to enable https.but am not validationg transport level certificates. Message Level : services.ca.iim (VXXXX.Cer--Act.Mac.Ca--services.ca.iim ) Client Cerificates : Transportlevel : ZZZZ.cer my cerificate name is my system DNS name and it is having root node i.e RootTrnCA.cer ignoring transport certificate errors through coading..... Message Level : client.ca.iim (VXXXX.Cer--Act.Mac.Ca--client.ca.iim ) Issues : 1) Response message is not contain Service certificate Signature in Soap header.so i am not able to validate Server certificate details in Client code. 2)if i use the transport with message credential and Chaintrust.i am getting error : The revocation function was unable to check revocation because the revocation server was offline.) so please very the below service and cleint config and correct me if i am wrong. Service config : Client config : i am attaching certificate through coading : objProxy.ChannelFactory.Credentials.ClientCertificate.SetCertificate(System.Security.Cryptography.X509Certificates. StoreLocation.LocalMachine, System.Security.Cryptography.X509Certificates. StoreName.My, X509FindType.FindBySubjectName, "client.ca.iim"); <binding name="XXXXXServiceHost.Http" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true"> <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" /> <security mode="TransportWithMessageCredential"> <transport clientCredentialType="None" proxyCredentialType="None" realm="" /> <message clientCredentialType="Certificate" algorithmSuite="Default" /> </security> </binding> </basicHttpBinding> </bindings> <client> <endpoint address="https://XXXXXX/XXXServiceHost/MemberSvc.svc/soap11" binding="basicHttpBinding" bindingConfiguration="XXXServiceHost.Http" contract="ServiceReference1.IMemberIBA" name="XXXServiceHost.Http" /> </client> </system.serviceModel>Please Verify both and Help me how to resolve above two issues . Thanks Babu

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• "type not defined" exception with WF4 RC

  - by avi1234

  Hi, I`m gettin the following exception while invoking my workflow (dynamically): The following errors were encountered while processing the workflow tree: 'DynamicActivity': The private implementation of activity '1: DynamicActivity' has the following validation error: Compiler error(s) encountered processing expression "TryCast(simplerule_out,OutputBase2)". Type 'OutputBase2' is not defined. 'DynamicActivity': The private implementation of activity '1: DynamicActivity' has the following validation error: Compiler error(s) encountered processing expression "Res". Type 'OutputBase2' is not defined. 'DynamicActivity': The private implementation of activity '1: DynamicActivity' has the following validation error: Compiler error(s) encountered processing expression "Res". Type 'OutputBase2' is not defined. 'DynamicActivity': The private implementation of activity '1: DynamicActivity' has the following validation error: Compiler error(s) encountered processing expression "New List(Of OutputBase2)". Type 'OutputBase2' is not defined. The workflow is very simple and worked fine on VS 2010 beta 2! All I`m trying to do is to create new list of my abstract custom type "OutputBase2". public class OutputBase2 { public OutputBase2() { } public bool Succeeded { get; set; } } class Example { public void Exec() { ActivityBuilder builder = new ActivityBuilder(); builder.Name = "act1"; var res = new DynamicActivityProperty { Name = "Res", Type = typeof(OutArgument<List<OutputBase2>>), Value = new OutArgument<List<OutputBase2>>() }; builder.Properties.Add(res); builder.Implementation = new Sequence(); ((Sequence)builder.Implementation).Activities.Add(new Assign<List<OutputBase2>> { To = new VisualBasicReference<List<OutputBase2>> { ExpressionText = res.Name }, Value = new VisualBasicValue<List<OutputBase2>>("New List(Of OutputBase2)") }); Activity act = getActivity(builder); var res2 = WorkflowInvoker.Invoke(act); } string getXamlStringFromActivityBuilder(ActivityBuilder activityBuilder) { string xamlString; StringBuilder stringBuilder = new StringBuilder(); System.IO.StringWriter stringWriter = new System.IO.StringWriter(stringBuilder); System.Xaml.XamlSchemaContext xamlSchemaContext = new System.Xaml.XamlSchemaContext(); System.Xaml.XamlXmlWriter xamlXmlWriter = new System.Xaml.XamlXmlWriter(stringWriter, xamlSchemaContext); System.Xaml.XamlWriter xamlWriter = System.Activities.XamlIntegration.ActivityXamlServices.CreateBuilderWriter(xamlXmlWriter); System.Xaml.XamlServices.Save(xamlWriter, activityBuilder); xamlString = stringBuilder.ToString(); return xamlString; } public Activity getActivity(ActivityBuilder t) { string xamlString = getXamlStringFromActivityBuilder(t); System.IO.StringReader stringReader = new System.IO.StringReader(xamlString); Activity activity = System.Activities.XamlIntegration.ActivityXamlServices.Load(stringReader); return activity; } } Thanks!

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• Stick Footer Issue in Safari & Chrome

  - by BlazeK

  My sticky footer works great in all the browsers expect Safari & Chrome, particularly the work.html page itself. http://obliqueinteractive.com/creative/work.html I noticed when i delete this css attribute from my style sheet, the problem goes away but doesn't allow for the footer to stick anymore html, body {height: 100%;} Could there be other css issues that are forcing the footer to act this way?

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• Mysql locale session variable ?

  - by Maxim Veksler

  Hunting internationalization bugs here. Does mysql has a variable which can be set per session, meaning the each connection will know the timezone of it's client and will act upon that. If such variable does exists I would expect sql statements such as the following will return diffect values, based on connection session locale. select date('2010-04-14') + 0; Thank you, Maxim.

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• Convert MYSQL Timestamp to time_t

  - by Kewley

  I'm writing a multi-threaded program that needs to be able to check if a row requires updating and act accordingly. I had problems using the built in date/time functions of MySql and so decided to just store the "lastupdate" timestamp as an integer in the table. However, I'm having problems converting this timestamp to time_t so that I can use the time functions with it. Any help is greatly appreciated.

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• How can I recreate the ImageKit Picture Taker?

  - by kennyisaheadbanger

  Hi, I'm trying to create a tool for jQuery which crops images. I know there is already a load of already. The difference with the one i'm trying to make is that i'd like it to act like the Picture Taker interface found in many mac applications like iChat and Adium. I'm stuck completly on how to do it. Can anyone give me any ideas? Picture Taker Documentation

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• Program to create window transparency in XP

  - by sadmicrowave

  I'm looking for a program to create window transparency within Windows XP; somewhat like Glass2K. I've used Glass2K and found it extremely processor intensive and would like to try something else. The application needs to act upon the current Windows Theme rather than be a theme itself like Aero Glass.

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• Is it possible to read from Mercurial repository using PHP

  - by Metropolis

  Hey Everyone, After trying to get the mercurial repository explorer setup on my shared hosting with no luck, I have decided to try and write a module for our Intranet that will act as a repository explorer. Is it possible for me to get changesets from a Mercurial repository without Mercurial installed on the machine? Thanks for any help! Metropolis

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• AS3 Regular Expression Question...

  - by Coltech

  Can someone give me a regular expression that will verify if all the letters in the word "cat" were also in the word "coating" in the proper sequence? So for the word "coating", the RegEx will test true for "cat" but false for "act".

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