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Mirrored Weblogs
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Η Interworks σε συνεργασία με τη Microsoft και τις εταιρίες λογισμικού, εφαρμογών και υπηρεσιών του κλάδου πληροφορικής SoftOne, Regate, Syscom και Algosystems σας προσκαλούν στην εκδήλωση με τίτλο “Το επόμενο βήμα στο επιχειρηματικό λογισμικό – 100% on the Cloud” που θα πραγματοποιηθεί την Πέμπτη, 18 Μαρτίου 2010 στο ξενοδοχείο Athenaeum Intercontinental (Λεωφ. Συγγρού 83-93, 117 45, Διαβάστε περισσότερα »...
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Συνεχίζοντας τη σειρά με τα design patterns , σε αυτό το post γίνεται μία αναφορά στο MVVM, μέσα από μία αρκετά απλοϊκή προσέγγιση. Θα περιγραφεί το pattern, θα δωθούν μερικές base classes, ένα utility για το πώς γίνεται type-safely raise ένα event για ανανέωση UI, καθώς και ένα μικρό παράδειγμα, με Bing Maps σε μία Silverlight εφαρμογή. Τί είναι το MVVM; Το Model – View – ViewModel είναι ένα πρότυπο σχεδίασης για το σχεδιασμό διεπαφών χρήστη, το οποίο έχει επηρροές τόσο από το Model View Presenter, όσο και Διαβάστε περισσότερα »...
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I’ve just rebooted from a Windows update only to find at my startup screen the following window. And I am wondering do other OSes have something similar … Διαβάστε περισσότερα »...
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Today I was literally saved by the bell... or rather saved by my RAID10. When I bought my latest workstation I decided it would pay off to spare no expense, while trying to stay out of the "Game Machine" zone.... Διαβάστε περισσότερα »...
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Τελικά τα closures είναι ένα απλό concept, που όταν το κατανοήσει κάποιος, το βλέπει τετριμμένο μετά. Αν μπορούσα να δανειστώ από κάπου, δυό λόγια για ορισμό, νομίζω η wikipedia το περιγράφει αρκετά καλά. Τα closures είναι μία ιδέα των γλωσσών προγραμματισμού, που επιτρέπει, σε συναρτήσεις που αντιμετωπίζονται ως first-class objects, τον συσχετισμό ελεύθερων μεταβλητών τους, με τον λεκτικό περιβάλλοντα χώρο της συνάρτησης. Στη συνέχεια θα ήθελα να διατυπώσω το εν λόγω concept όσο πιο σύντομα γίνεται, δανειζόμενος Διαβάστε περισσότερα »...
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How to maintain the scroll position-location when a postback occurs in an ASP.NET application Διαβάστε περισσότερα »...
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I have this friend of mine who is responsible of a team of asp.net developers that develop applications for people from all walks of life.
One of his main concerns were that he had to check the deployment stage of every application very carefully and constantly had to correct common mistakes in the web.config file.
Some common [...] Διαβάστε περισσότερα »...
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Last week I had the chance to talk about strating up with SQL Azure on a Microsoft’s Developers Day event. The things I’ve talked about included: How to create your database on the cloud, querying data, migrating Databases to SQL Azure. Tips and Tricks: SQL Azure firewall through API, Managing connections, Logging sessionId's, Throttling and latency, Transactions, Supportability. Overall Διαβάστε περισσότερα »...
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It is a very common request when designing an asp.net application, to set the focus on an asp.net control. Διαβάστε περισσότερα »...
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ΥΠΕΠΘ - Δελτίο Τύπου 02/03/2010 Η πολιτική ηγεσία του Υπουργείου Παιδείας, αντιλαμβανόμενη τον ζωτικό ρόλο που διαδραματίζει η πρόσβαση σε Επιστημονικές Ηλεκτρονικές Πηγές, για την ακαδημαϊκή και την ερευνητική κοινότητα, αντιμετώπισε το πρόβλημα της πρόσβασης που οφειλόταν σε σειρά από άστοχες ενέργειες του παρελθόντος. Το κόστος χρηματοδότησης της πρόσβασης στις Ηλεκτρονικές Πηγές Διαβάστε περισσότερα »...
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Some versions of Windows Media Player aren't playing Video-CD disks by default, unless you install some DirectShow filters like the ones from codecs.com , like the DScaler MPEG filters package. However, since Super Video-CD [SVCD] is practically a MPEG2 file with some menus etc., you can trick Media Player to play it anyway, either by copying the .DAT file from the CD's MPEGAV folder Διαβάστε περισσότερα »...
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Just noticed an update (released as important) by Microsoft via Windows Update regarding IE8's JSON support. Quoting from http://support.microsoft.com/kb/976662 : Windows Internet Explorer 8 is the first Microsoft Web browser that includes native support for encoding and for decoding JavaScript Object Notation (JSON). Because of the new ECMAScript specification changes, some customers Διαβάστε περισσότερα »...
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Quoting from WMPowerUser.com : A post today on the European carrier Orange’s business blog begged Microsoft for some clarify on their enterprise intentions. Steven Costello notes: "While Windows Phone 7-based devices are not likely to reach the market before Christmas 2010, one thing is very clear: the operating system is very-much consumer focused, with Microsoft’s other consumer Διαβάστε περισσότερα »...
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Skype provides pretty rich API for us developers to create add-ons that can customize it's behaviour. There are a number of ways to use this API and access Skype functionality programmatically. Skype4COM is one of these ways and is the recommended one if you want to create your add-on using .NET. Skype4COM is a wrapper dll that provides Skype functionality into the COM world, therefore also to the .NET world, since .NET can use COM dll libraries. Skype4COM.dll is located into the Program Files\Common\Skype folder (or Program Files (x86)\Common\Skype in case of x64 version of Windows). It is installed (and registered) there if you install Skype with Extras enabled (this is an option of one of the steps of Skype installation). Once done, you can add a reference to it from your .NET project. Simply right click on your project in the Visual Studio solution explorer, select Add Reference and then click on the COM tab. Skype4COM should be in the list populated there. Example Here is a simple (self descriptive) example...
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Κάντε κλικ πάνω στις αντίστοιχες εικόνες για να πάτε στις παραπάνω σελίδες και αν βγάλετε άκρη πείτε μου κι εμένα... Διαβάστε περισσότερα »...
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Couple of years ago Sotiris Fillippidis - friend of mine and author of famous Zaharias Dentoftiahno tales - initiated a table of existing issue tracking systems to compare their features. Here is his blog post . Today I came accross something similar in Wikipedia . It's a list of about 40 or more issue tracking systems. Take a look ... Permalink | Leave a comment »...
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I installed Visual Studio 2010 RC a couple of days after it became available, after uninstalling the previous installed beta 2. Today I discovered a small problem with Net.Tcp Port Sharing service. The status of the Windows Services console was the one show in the attached screen shot. It appears that the installation didn't update the service and it was still registered with executable that was in the previous version of .NET 4 (beta 2). So when trying to start the service I was getting a File not found error in Windows Event log. I'm not sure if this was a problem of installation of RC or uninstallation of beta 2. Anyway, fixing the problem was easy. I downloaded .NET Framework 4 RC and executed it with the Repair option selected. Permalink | Leave a comment »...
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Click here to download: WindowsAuthenticationTest.zip (17 KB) There aren't may things one has to do to enable windows authentication in a WCF service. Actually Windows Authentication is by default enabled when using most of the standard bindings of WCF. Configuration The following configuration ensures this anyway (use this configuration both on server and on client side): <system.serviceModel> <bindings> <wsHttpBinding> <binding name="test"> <security mode="Message"> <message clientCredentialType="Windows"/> </security> </binding> </wsHttpBinding> </bindings> ... Server To get the credentials of the user on server side using the following (password in never included): var identity = OperationContext.Current.ServiceSecurityContext.PrimaryIdentity; Client On client you have two options: a) Do not ask credentials from the user (Integrated Authentication) : The credentials of the current logged on user will be used. This requires that the user is logged...
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Για την ακρίβεια λέγεται Windows Phone 7 Series και ανακοινώθηκε εχθές από τον Steve Ballmer κατά το Mobile World Congress. Αυτή τη στιγμή γίνεται χαμός στη blogo-σφαιρα με απανωτά posts αναφορικά με το νέο λειτουργικό της Microsoft για κινητά (μία βόλτα από το techmeme θα σας πείσει). Συνοψίζοντας τις εντυπώσεις μου από τα άρθρα που διάβασα και video που παρακολούθησα: Όπως φημολογείτο Διαβάστε περισσότερα »...
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Για την ακρίβεια λέγεται Windows Phone 7 Series και ανακοινώθηκε εχθές από τον Steve Ballmer κατά το Mobile World Congress. Αυτή τη στιγμή γίνεται χαμός στη blogo-σφαιρα με απανωτά posts αναφορικά με το νέο λειτουργικό της Microsoft για κινητά (μία βόλτα από το techmeme θα σας πείσει). Συνοψίζοντας τις εντυπώσεις μου από τα άρθρα που διάβασα και video που παρακολούθησα: Όπως φημολογείτο Διαβάστε περισσότερα »...
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eXpand has a new module that make its easy to protect selected members from selected object instances. It does the above by checking if in the current system has been granted a eXpand.ExpressApp.MemberLevelSecurity.Win.Security.ProtectRowMemberPermission with an allow Modifier. Then it will allow you to protect selected members of an object as shown in the image above I have protected (minus sign) boths phones but not the fax (plus sign). So a user that do not have permission will see or for listviews There is also a non object instance depented permission for use as suggested by K18110 So when you create a new role you have to add the following permision by default role.AddPermission( new MemberAccessPermission ( typeof ( object ), null , MemberOperation .Read, Διαβάστε περισσότερα »...
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In the previous post we have worked with collision detection between roated sprites. In this post we will deal with the situtation where we want to detect whether a specific sprite that can be rotated is in a specific area in the scene (eg a car is on the road in the scene). Suppose that you have the following scenario: A car is driven by the user around the scene. When the car hits the boundaries of the road, the car should lose all of its speed. The user uses the UP/DOWN keys to acelerate/break and LEFT/RIGHT Διαβάστε περισσότερα »...
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At a recent discussion on IE9 a user commented: All that aside. If you've announced IE9 development is under way - why isn't Connect opened up for IE9 bug/feature submission? I must confess - I absolutely hate the way IE bug/feature submission is handled through Connect. Totally the wrong tool, totally un-community friendly, totally opaque, totally un-helpful, totally not improving. Διαβάστε περισσότερα »...
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Last week I was asked by http://microsoftfeed.com to give an interview about the MVP program. Microsoftfeed.com is a Microsoft community blog focused mainly in the middle east region. It contains lots of valuable information and they’re currently running a section called “ Interview with Microsoft Most Valuable professionals ” which features a lot of interesting people. So when asked Διαβάστε περισσότερα »...
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eXpand has some time now an Exception Handling module that has not being introduced at all To install it ExceptionHandling.dll and ExceptionHandling.Win.dll or ExceptionHandling.Web.dll have to be added to your RequiredModuleTypes collection. For logging exceptions handling I am using Microsoft Enterprise Library Logging Application Block . I m a huge fun of how well MSEL library is designed and browsing their source code is a best resource to learn. Visual Studio eXpand Project Item template has been updated with configuration files containing all sections required by MSEL MSEL has a configuration tool that helps you manage the configuration files and it is included at _third_party_assemblies eXpand folder along with other require MSEL assemblies. I have Διαβάστε περισσότερα »...
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