Blog

System.IO.FileSystemWatcher class allows you to monitor physical directory activity, listen to the file system change notifications and raises events when a directory, or file in a directory changes.
I'we made small WPF application that will demonstrate you how use this class.

"Serialization is the process of converting the state of an object into a form that can be persisted or transported. The complement of serialization is deserialization, which converts a stream into an object. Together, these processes allow data to be easily stored and transferred."

When connecting to database server using SQL Server Management Studio, all the past connections and it's details are remembered in history.

This can be problem in situations when you would like to clear that history because:

In this article I will show you how to export data from generic collection to Excel file.
Assume you are working with list of Car entities. Car has some properties like name, color, and maximum speed. In this case, your entity would look like this...

"The CUBE operator is specified in the GROUP BY clause of a SELECT statement. The select list contains the dimension columns and aggregate function expressions. The GROUP BY specifies the dimension columns and the keywords WITH CUBE. The result set contains all possible combinations of the values in the dimension columns, together with the aggregate values from the underlying rows that match that combination of dimension values."

In this article you will learn how to "walk" through data stored in DataTable using LINQ.

If you ever tried to connect Visual Studio 2008 with Team Foundation Server 2010, you ran into a problem. These two aren't compatible unless you do some additional installations. To achieve this just follow the steps bellow.

In first article about the delegates, I tried to explain, basic concept of delegates, and how it could be used.
In this article I shall present you the use of delegates in real world situations!

If you liked concept of delegates in my previous article, feel free to keep on reading! :)

Delegate is a type that defines a method signature. It is also an object that receives that method as parameter when constructed and then call's that method to do some operation.

public delegate int MathematicalOperation(int numberA, int numberB);

Suspect state of SQL Server database is a state when you are unable to connect to the database.
In this state you cannot do anything with your database: no opening, no backup and no restore.
Possible cause for this problem can be one of the following:

Using ClickOnce to deploy your Windows application is the easiest way you can imagine.
BUT, as it gets with all automatic process, there are situations when you ran into a problem: my ClickOnce deployed application wouldn't start on Windows 8 operating system.

There are two ways to get your IP address!
First is for LAN IP, which indicates your computer address in local network, while the second way is to get your INTERNET IP, which is stored in your router.

#1 - Get computer LAN address like 192.168.1.3
#2 - Get computer INTERNET address like 93.136.91.7

There can be situations when you need to check, whether your application has Internet access.
Maybe you have to download/upload some file or database, or just run some application check.

Many developers are solving that "problem" just by ping-ing Google.com. Well...? :/ That will work in most (99%) cases, but how professional is to rely work of Your application on some external web service?

Instead of pinging Google.com, there is an very interesting Windows API function called InternetGetConnectedState(), that recognizes whether You have access to Internet or not.

If you are beginner or even advanced developer in HTML5, this article is MUST READ for you!

IMAGINE yourself developing some super-cool HTML5 web application where you spend weeks or even months in development, and then you figure some cool feature in HTML5 and you integrate it!

Everything works perfect, until you find out, that this feature is not supported by some browser(s). Problem gets whole lot bigger when you find out that nearly 20% of your user uses that browser(s)!

In this article I will show you how you can easily in SQL, calculate time difference between two dates in minutes, hours, days, and even weeks, months and years!

The key of this calculation is in Modulo operator, %. It returns the remainder (NOT the result!) of one number divided by another!

If you worked with System.Threading.Thread in desktop applications, you probably ran into problem, where you wanned to access some control, and update her condition / property.

Controls in Windows Forms are bound to a specific thread and are not thread safe. Therefore, if you are calling a control's method from a different thread, you must use one of the control's invoke methods to marshal the call to the proper thread.

Well, it's a lot more than HTML language - it is the synchronization of ALL desktop and mobile browsers!

In common tongue: one STANDARD to rule them all! :)

The goal of HTML is to create standard and consistent web expirience (browsing) across all devices and browsers. Whateaver you are on desktop computer, notebook, tablet, mobile phone, regardles what browser does your devices is using - EXPERIENCE is the same!

Parallel LINQ (PLINQ) is a parallel implementation of LINQ to Objects. It is located in System.Threading.Tasks.Parallel.

In many scenarios, PLINQ can significantly increase the speed of LINQ to Objects queries by using all available cores on the host computer more efficiently.

I bring you my example, where I tested the speed of PLINQ, and the increase of speed was enormous!

A System.Tuple is static class that allows you to create collection of specific data-typed values.

You can store values like...
Tuple tuple = new Tuple<int, string, string, bool>(1, "Matija", "Božičević", true);
...or you can create it in more easy way...
var tuple = Tuple.Create(1, "Matija", "Božičević", true);

In this article I will show you simple example how to:

1. Create simple .NET WCF service
2. Connect Android application with .NET WCF service, get some data in JSON format, and show data in Android's ListView

Today's web technologies are more advanced than they have ever been, and they have so much to offer to your business. Make the most of these advantages by using them!

Building your own custom web application gives you comfort and ease in your daily work, for you and your employees. It also guarantees you the ability to modify and upgrade your application in anyway and anytime it suits you.
Doing so, you keep your software infrastructure up to date with all your business process. It also maximizes performance of your team and employees, because you give them the right tool to be more effective and satisfied.