Visual Studio 2010: UML modeling projects
Visual Studio 2010 introduces modeling projects that bring UML diagrams to Visual Studio. Currently it is not possible to generate classes from diagrams automatically but I don’t think it is a problem – good UML diagrams visualize different aspects of system short and clearly and they usually don’t document everything you can find in system. In this posting I will show you how to use modeling projects in Visual Studio 2010.
Using ASP.NET and Jcrop to crop images online
Cropping images in ASP.NET is easy task to do if you use right tools. In this posting I will introduce how to crop images using Jcrop and System.Drawing namespace classes. What we are building is simple and user-friendly image cropping interface that also demonstrates some simple features of Jcrop. Believe me, your users will love it!
.Net Framework 4.0: VB.NET supports automatic properties
Next version of .Net Framework brings some new features also to VB.NET. One of those new features is support for automatic properties. C# automatic properties are here from .Net Framework 3.5 and now are them also in VB.NET. In this posting I will show to VB.NET users how to use automatic properties and explain why to use them. (more…)
Writing cache based repositories for web application prototyping
When I started building in-house demo application I thought about how to solve temporary data layer so I don’t have to use real database and object mappings for it. Playing with new object model and new components I move way faster if I don’t have any additional ballast that I can avoid. So I wrote simple cache based repository mechanism I can use to imitate real repositories that I will write in the future.
Enumerating file system objects in C#
In my last posting I introduced new ReadLines() method and new overloads for WriteAllLines() method of File class. But there are more new stuff in System.IO namespace. In .Net Framework 4.0 Directory and DirectoryInfo class are able to enumerate files, directories and file system entries. In this posting I will show you these new features.
.Net Framework 4.0: System.IO.File supports now IEnumerable
.Net Framework 4.0 adds also some new and cool features to file system objects. File class has now ReadLines() methods that returns IEnumerable. WriteAllLines() methods has two overload methods that accept IEnumerable instead of strings array that was also supported in previous versions of .Net Framework. This posting introduces ReadLines() and WriteAllLines() methods and gives you some ideas how to use these methods in your applications.