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Πρόσφατες Δημοσιεύσεις
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The Delphi compiler warning " Unit 'x' implicitly imported into package 'y' " means that a unit not explicitly listed in the contains clause of the package is being implicitly pulled into the package because it's imported by some other unit that's listed at the package's contains clause. This warning is aiding the program in avoiding to violate the rule that a unit may not Διαβάστε περισσότερα »...
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Η ML είναι μια από τις γλώσσες που άλλαξαν εντελώς τον τρόπο σκέψης μου. Ο Robin Milner είναι ένας από εκείνους τους σπάνιους ανθρώπους, που ανέδειξαν το βάθος, την δύναμη και την ομορφιά στο αντικείμενο που σήμερα ονομάζουμε Computer Science. Μια προσωπικότητα larger than life....
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Say no to alcoholic beverages (can still drink a glass of red wine now and then) Eat lots of fresh vegetables Prefer full-grain bread (unless you're allergic to it) Eat lots of fruit Avoid sweets and sugar in general Prefer olive oil for salads and cooking Drink plenty of water Eat fish often Cut off cigarettes Get some exercise (take some longer walks) Διαβάστε περισσότερα »...
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Oh I feel so happy whenever I solve yet another mystery in the wonderful ways that Windows works :-) So happy that I desperately need to blog about it :-P Last year I bought a ThinkPad laptop with Windows Vista.... Διαβάστε περισσότερα »...
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This is copy-paste from the original article We’re thrilled to offer another free ebook: Own Your Future: Update Your Skills with Resources and Career Ideas from Microsoft , by Katherine Murray. The ebook contains eight chapters and an appendix describing how you can assess and build your technology-based job skills. To give you a sense of the ebook’s content, here is its Foreword, by Microsoft Learning’s Lutz Ziob: Foreword In the midst of a struggling economy, our fast-changing, knowledge-based economy has created unprecedented challenges for employers and workers alike. Employers increasingly need workers with a broad range of information technology (IT) skills. These skills will become even more important as we continue to retool major sectors of our economy, such as healthcare, transportation and energy. By 2014, more than three-quarters of all jobs in the United States will require some level of computing or technology skills, and the vast majority of newly created jobs will require post-secondary education...
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.png" width="538" height="231" /> Interesting dialog showing when there's not enough space for iTunes+QuickTime installer to save recovery info. It says you can press Cancel button, but there's only an Abort one there. Maybe that's the reason [:-p] it does nothing (this message just keeps reappearing when you press Abort)? Apart from the joke, there's a possibility the reason for the Διαβάστε περισσότερα »...
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Διαβάζοντας αυτή την ανάρτηση μπορεί να σκεφτείτε μα τι λέει ο άνθρωπος; Τώρα το κατάλαβε; Μα δεν το ήξερε; Ε, όχι! Δεν το ήξερα. Απλά θέλω να το γράψω, ώστε αν συμβεί σε κάποιον άλλο να μην ψάχνει σαν τρελός όπως εγώ για να βρει τι φταίει. Είπα λοιπόν, να βάλω Windows Server 2008 R2 και Hyper-V για να στήσω τα dev μηχανάκια μου και να τα έχω νοικοκυρεμένα. Στήθηκε γρήγορα, στρωτά μέχρι που χρειάστηκε να μπω στο web.... να σας πω επίσης ότι το έβαζα στο laptop μου... το ταλαίπωρο... Anyway, ρε γιατί δεν παίζει, τι driver έβαλα, το κλείνω, παίρνω κατσαβίδι ανοίγω από κάτω βλέπω ότι έχω βάλει το σωστό driver... το κλείνω και ξαναμπαίνω μέσα... τίποτα! Κατεβαίνω στον κάτω όροφο, βγάζω το ethernet το ρίχνω πάνω στον router και magic... :P Ναι αλλά το wireless τίποτα... Διαβάστε περισσότερα »...
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Similar to New Pivoting module all features have been implemented for web as well so you can apply the PivotedPropertyAttribute along with inline editing to create complex views like the above view has been created declaratively !!! No line of code was written for it you can also control your pivot settings at runtime see for example the pager options Διαβάστε περισσότερα »...
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Visual Studio 2010 launches in two weeks, and you can either join the global launch live in Las Vegas or join at the virtual launch event . And if you still haven't tried Visual Studio 2010, go download the release candidate today . Διαβάστε περισσότερα »...
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Automattic (makers of WordPress ) recently upgraded the Gravatar service into a home-page to a user's profile and social networks, as pictured at the following article: http://thenextweb.com/apps/2010/03/26/wordpress-turns-gravatar-social-network/ However you may find that Google's Blogger service is now showing a broken image link instead of your Gravatar image at your blog on blogspot.com. Διαβάστε περισσότερα »...
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To specify multiple .JAR files at HTML APPLET's tag ARCHIVE parameter, edit the applet tag in the HTML page and change the following parameter: ARCHIVE = "myapplet.jar" to say ARCHIVE = "myapplet.jar,lib/jbcl-rt.jar,lib/jgl.zip" assuming you place all those JAR files together on the server (the "lib/..." ones in a subfolder called "lib") with Διαβάστε περισσότερα »...
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If you ever have to work with legacy code directly manipulating BMP image files, this Wikipedia article on RLE is a useful reading, since RLE (Run-Length-Encoding) is one of the popular compression schemes used in the BMP image container format. Although simple, RLE when used on palletized images (especially drawings on simple Paint-like programs) can do a decent compression. Can even Διαβάστε περισσότερα »...
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Από σχετική ιστοσελίδα της Ελληνικής Αστυνομίας: Οι παρακάτω τριψήφιοι και τετραψήφιοι αριθμοί αντιστοιχούν σε τηλεφωνικές γραμμές που λειτουργούν σε 24ωρη βάση και στις οποίες οι πολίτες μπορούν να απευθύνονται για πληροφορίες, παράπονα και καταγγελίες: 100: Τηλεφωνική επικοινωνία για άμεση αστυνομική επέμβαση σε κάθε νομό της χώρας. 109: Τηλεφωνική επικοινωνία με τις Υπηρεσίες Δίωξης Διαβάστε περισσότερα »...
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When working with Xaf and MVC pattern in order to create actions we are using controllers and initialize them upon them. The default behavior of Xaf is to place our actions in the default toolbar of our view. What if we want to position our actions somewhere else in the view? Then we need to create a custom detailviewItem and write our code against the interface exposed by the detailviewitem. I really did not like the idea , I really wanted to continue to design my actions behavior against the controller interface so i have added an ActionButtonDetailItem for both win and web platforms that can be installed declaratively using the model like bind it to the action we want like and position it anywhere we want using Dx layout component to create our views like Διαβάστε περισσότερα »...
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Ένα μικρό tip που μπορεί να σας σώσει από εκνευρισμό ειδικά αν είστε αρχάριος με τον SQL 2008, είναι όταν πάτε να κάνετε μια αλλαγή σε ένα πίνακα που έχετε ήδη δημιουργήσει, πχ. να αλλάξετε τον τύπο (datatype) μιας στήλης (field). Ξαφνικά παίρνετε αυτό το ωραίο warning pop-up window Για να το ξεπεράσετε και να μπορέσετε να κάνετε τις αλλαγές μέσα από τον SSMS , πρέπει να πάτε Tools --> Options να βρείτε το Designers section και να απενεργοποιήσετε την επιλογή "Prevent saving changes that require table recreation" , όπως φαίνεται παρακάτω: Ελπίζω να σας φανεί χρήσιμο. Διαβάστε περισσότερα »...
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Edward Tufte: http://www.edwardtufte.com/tufte/ Julie Steele, Noah Iliinsky / Beautiful Visualization - O'Reilly Media: http://oreilly.com/catalog/0636920000617 Ben Fry: http://benfry.com/ Rick Barraza: http://www.cynergysystems.com/blogs/page/rickbarraza Descry - Lab - MIX Online: http://www.visitmix.com/labs/descry/ FlowingData - Data Visualization and Statistics: http://flowingdata.com Διαβάστε περισσότερα »...
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Well I stumbled upon a webcast that introduced to me this feature of Word and this is me testing it! Let's see… V. P.S.: This may seem useless but I think not! J Διαβάστε περισσότερα »...
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I've been recently adding support for QuickTime TimeCode tracks to the JEDI QuickTime library's "qt_QuickTimeComponents.pas" file and I thought I should share a quick reminder on how we convert C structs (records) and unions (sets) into Pascal (Delphi / Object Pascal in this case) records: Structs: struct TimeCodeCounter { long counter; }; typedef struct TimeCodeCounter TimeCodeCounter; Διαβάστε περισσότερα »...
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After working with MVC pattern exposed by Xaf I have realized that the best way to to pass parameters between controllers is by using events like public class PricePricetypeController : ViewController { public event EventHandler < AdjustingPriceTypeEventArgs > AdjustingPriceType; public void OnAdjustingPriceType( AdjustingPriceTypeEventArgs e) { EventHandler < AdjustingPriceTypeEventArgs > handler = AdjustingPriceType; if (handler != null ) handler( this , e); } protected override void OnFrameAssigned() { Διαβάστε περισσότερα »...
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When I first met DevExpress I was amazed by their XtraGrid control. What a configuration monster!. Xaf exposes some of the configuration but not all. eXpand allows you to control all configurations of XtraGridControl per view as shown bellow Διαβάστε περισσότερα »...
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I created a small screen cast that shows how to enable SSL on IIS for testing or development purposes. Procedure involves creating a self-signed SSL certificate and then enabling SSL (https binding) on IIS using that certificate. Permalink | Leave a comment »...
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We can permanently redirect traffic to the new pages without losing page rankings by using the 301 permanent redirect. RedirectPermanent help us to achieve that. Διαβάστε περισσότερα »...
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The important setting that was added in ASP.Net 4.0 is the last setting, compressionEnabled="true". Διαβάστε περισσότερα »...
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This one is the most complex implementation of the logic architecture cause this module is really a facade module. ActionState and ControllerState modules are hosted within it. But the implementation for each one of them as you see in the image bellow really looks alike In order to control the different in model schema than the one that is provided bu defaul I have override the require methods of ControllerStateModule public class ControllerStateModule : ConditionalLogicRuleProviderModuleBase <TArtifactStateRule> where TArtifactStateRule : IConditionalLogicRule { public override string LogicRulesNodeAttributeName { get { return ControllerStateRulesNodeWrapper Διαβάστε περισσότερα »...
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The FireWire Reference Tutorial was officially announced a few days ago by the 1394 Trade Association. This is a free guide to help engineers understand FireWire and it teaches FireWire starting from scratch. It assumes no prior knowledge. The tutorial... Διαβάστε περισσότερα »...
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