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Mirrored Weblogs
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Ανακοίνωση H Ελληνική ομάδα fedora και ο Chania-LUG διοργανώνουν στις 4-7 Ιουλίου 2009 το πρώτο Greek Coding Camp στην Παλαιόχωρα Χανίων στη Νότια Κρήτη. Θα κατασκηνώσουμε, θα φέρουμε τα laptop μας Διαβάστε περισσότερα »...
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As I already mentioned earlier , Facebook has recently removed the friends status RSS feed from its pages causing myFacebook gadget users a problem as they couldn’t easily configure myFacebook sidebar gadget to display friend statuses. To resolve this issue I changed the way myFacebook gadget retrieved those statuses by removing the RSS feed and instead using the brand new Facebook Διαβάστε περισσότερα »...
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Yes I know that is not the best practice. When using Xaf or Xpo you should first design your objects and let the framework create the database schema based on objects metadata (attributes). But there are many cases that the database is already design and you can not change it. What about those projects? Are you going to say to your customer that you do not want that project? Are you going to sit down and write all classes by hand? The best solution on this is to use some Template engine like Codesmith to create the initial implementation for you and then you can change them to meet your needs. You can also find a freeware version of Codesmith here Devexpress also has a persistent class generation Util which ca be invoked from the add new item form Διαβάστε περισσότερα »...
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Since I am the first user of TypeMock !!!, Gil Zilberfeld which is a technology Evangelist at TypeMock offer me a TypeMock MVP title. Also that title gaves me access to see all future TypeMock exciting stuff before go official. Do not know if I can blog about them though. Thank you Gil and TypeMock it is my honor to use such a great tool!!! Διαβάστε περισσότερα »...
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In this post I will show you a step by step example on how to build an ASP.NET application with C# and Entity Framework. First let's try to define what EF is and why it is going to help us to create easily data-centric applications.Entity Framework is an object-relational mapping (ORM) framework for the .NET Framework.EF addresses the problem of Object-relational impedance mismatch. Διαβάστε περισσότερα »...
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In this post I will talk about Viewstate management in ASP.NET 4.0. Διαβάστε περισσότερα »...
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In this post I will try with a step by step example to highlight the new features of VB 10.0. I will also highlight some of the new enhancements on VS 2010 IDE. Διαβάστε περισσότερα »...
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Related posts: eXpand RWF = (Real world framework)--->First thoughts Refactoring namespaces I am going to start refactoring today and I am going to use Resharper and its rename NameSpace feature to accompish it. I though it will be easy, but nothing is easy at this life. What happen ? At my pc Core 2 Quad with 8G memory I tried to refactor directly the word XAFPoint which is the root namespace in all assemplies. Yes you can do that!!! if you have for example a namespace like: RootNameSpace.SubNameSpace1.SubSubNameSpace at assembly 1 RootNameSpace.SubNameSpace2.SubSubNameSpace at assembly 2 and you try to rename using ReSharper the RootNamepace to RenamedNameSpace you will end up with: RenamedNameSpace.SubNameSpace1.SubSubNameSpace at assembly 1 RenamedNameSpace.SubNameSpace2.SubSubNameSpace Διαβάστε περισσότερα »...
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Another idea-concept that is tightly linked with LINQ is LAMBDA expressions. Lambda expressions are shorthand for anonymous delegates . Basically delegates allow you to create a variable that “points” to a method. We can use this variable at any time to invoke the method. Διαβάστε περισσότερα »...
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If you do not know about TypeMock see some cool video tutorials here . TDD is an software design approach that states: In order to design your software from the correct angle and don’t get lost in the info you have first write down a test that describes a behavior and then by using tools like ReSharper to actually create the “at most as code is required to make that test past” There is an excellent video from Gary and Oliver on how to TDD with Xaf . These guys know a lot but you have to analyze each word they say to get the real power out of it. Nice work guys!! and we love to see more videos like that but going deeper onto the “software design” stuff. Test Driven Development Techniques Now that I am sure that you know what is TDD is I am going to saw you the Διαβάστε περισσότερα »...
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Βιβλιοπωλείο Γνώση Εκδόσεις ΚΕΔΡΟΣ Εκδόσεις ΠΑΤΑΚΗΣ Εκδόσεις ΨΥΧΟΓΙΟΣ Παλαιοβιβλιοπωλείο Παπασωτηρίου Anubis BibliOasi GreekBooks Διαβάστε περισσότερα »...
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Thnks to my friend Aristeidis I have in my hands a WebPropertyEditors that contains an AspxTreeList implementation and I can share it with the community. Since I didn’t write the code I cannot answer to many questions but from a first look I an IWebTreeNode interface that should be implemented by your persistent object along with ITreeNode. thnk you for sharing this one Aris Download Διαβάστε περισσότερα »...
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The last few months me and my friend John have been working on a framework build using X af . It is called XafPoint and has almost 40 generic modules!!! What is it? What it does ? It is build using the same architecture as Xaf and contains abstract modules like the Xaf one’s so we can build our every day scenario. How it was build ? Since I am from the first beta day a Xaf user I managed to have a strong and abstract layer just above xaf. Then I met john that had a large project and he was using SharePoint services to implement it. But when I told him some cool stuff on Xaf he got very excited and he told me that he wanted to use Xaf as the data management feature of SharePoint so we tried and in a few months join our knowledge and tools and we build a Διαβάστε περισσότερα »...
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Here’s an interesting free e-learning offer from Microsoft Learning : Collection 6261: Developing Rich Experiences using Microsoft .NET Framework 3.5 & Visual Studio 2008 This collection of 3 2-hour premium clinics teaches about the new capabilities provided by the .NET Framework 3.5. These clinics are for experienced Developers and Software Architects who are looking to adopt Microsoft's Διαβάστε περισσότερα »...
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The Code Project is a big resource of high quality software development and design articles with downloadable source code examples, with good discussion facilities and up to date software development news. Now it’s even more versatile with the addition of an add-in (a dockable frame) for Visual Studio 2008, that searches all 23,000+ Code Project articles and lists the results in order Διαβάστε περισσότερα »...
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For Silverlight 2 starters I recommend this free tutorial from silverlight.net: http://silverlight.net/learn/tutorials.aspx There is code available both in C# and VB. Διαβάστε περισσότερα »...
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In this post I will try to explain Object Oriented programming model-paradigm.Some of the topics-concepts, I will try to cover topics like Classes ,Properties , Methods ,Fields ,Members ,Enums,Structures, Abstraction , Encapsulation ,Interfaces ,Static classes, Constructors ,Method overloading,Inheritance ,Overriding methods,Virtual methods,Abstract classes ,Polymorphism ,Delegates ,Events Διαβάστε περισσότερα »...
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if you do not know about ITreenode’s purpose read this The problem I just came back from my friend Aristeidis home . Aris told me that he want me to have a look a his brand new AspxTreelistEditor and have also some cold beers we can drink . After some beers Aris ask was telling me how he solved the circularReferences between parent child relation. Because ITreenode implementation is too simple or you are lazy to search for the best practice you possibly implement like Aris and I do it up to today. But today is different cause while exploring Devexpress sources I found DevExpress.Persistent.BaseImpl.HCategory that solves that problem one more secret reveal !!!! Διαβάστε περισσότερα »...
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Steven Rasmussen found a bug at modeleditor plugin that was: if you have any of your modules saved at a directory that contain spaces in its name the modeleditor failed to open the fixed version can be found here Διαβάστε περισσότερα »...
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Xaf addins won’t load if there was a special kind of project in your solution like Setup Project,DataBaseProject I have fix that and you can download them again here Διαβάστε περισσότερα »...
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Because XPbaseObject implements INotifyPropertyChanged property setters need to be implemented using a special way like public string Name { get { return name; } set { SetPropertyValue( "Name" , ref name, value); } } but if you are a strongly typed fun like me the you certainly will not like the string representation of the “Name” as a parameter of SetPropertyValue because if you rename the property then you should explicitly rename the string parameter as well. I used to write my properties like private string nameWithReflection; public Διαβάστε περισσότερα »...
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It’s been quite some time since I last talked about Entity Framework Caching . Since then a lot of people has come to me asking me if there was something they could do. Well I’m happy to announce that this week Jaroslaw Kowalski released the source code on msdn code library of sample caching providers ASP.Net Cache, and Velocity on) for Entity Framework. The solution relies on caching Διαβάστε περισσότερα »...
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Today we are going to speak about an implementation of the approach describe in this post . INotifyPropertyChanged is responsible for notifying clients that a property value has changed.To implement INotifyPropertyChanged you should write a code similar to public class Client : INotifyPropertyChanged { private string name; public string Name { get { return name; } set { if (name == value) return; name = value; OnPropertyChanged(new PropertyChangedEventArgs("Name")); } } #region INotifyPropertyChanged Members public event PropertyChangedEventHandler PropertyChanged; #endregion protected virtual void OnPropertyChanged(PropertyChangedEventArgs e) { if (PropertyChanged != null) PropertyChanged(this, e); } } and the test of the behaviour that we want would Διαβάστε περισσότερα »...
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Microsoft announced the launch of its first TechNet virtual conference , helping cut costs, increase efficiency and reduce environmental impact, whilst still getting all the latest information on Microsoft technologies and valuable tech insights. If you can’t make it on 19 June 2009 don’t worry, they’re making all the content available to access on demand Διαβάστε περισσότερα »...
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We all get into situation where we need to access class metadata like properties,methods and fields and we use reflection to accomplish it private class Customer { public string LastName { get; set; } } [Test] public void Test() { Assert.IsNotNull(typeof(Customer).GetProperty("LastName")); } but what will happen if we change the property name of “LastName” to “SurnName” ?? Our test will fail . But there is a rescue on this one using linq expression trees. public static class ReflectionExtensions { public static MethodInfo GetMethod<TTarget>(this TTarget target, Expression<Action<TTarget>> method) { return GetMethodInfo(method); } private static MethodInfo GetMethodInfo(Expression method) { if (method == null) throw new ArgumentNullException("method"); Διαβάστε περισσότερα »...
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