While they both serve a similar purpose, #define and const act differently. When using #define the identifier gets replaced by the specified value by the compiler, before the code is turned into binary. This means that the compiler makes the substitution when you compile the application. Take for example: #define number 108 In this case […]
Getting Started with Java
Start Programming with Java, first sample code and some additional details
How can I insert a new line in a TextBox?
To insert a new line in a TextBox, first make sure you have the MultiLine property of the TextBox set to True. Then use \r\n (carriage return and new line), as in the following example:
How do I convert from decimal to hex and hex to decimal?
If for any reason you want to convert a decimal number to a hex value or vice versa here’s how it’s done in C#. In the above example we convert the decimal stored in the int variable named decValue and store it in a string variable named hexValue.Then we convert the hex value stored as […]
JavaScript identifiers
You will learn the meaning of identifiers and basic rules. It’s good to know before you start to learn variables.
Antialiasing / Smoothing
Learn how to apply antialiasing on shapes using GDI+. Uses SmoothingMode and PixelOffsetMode enumerations.
ADO.NET and Access database I
How to connect to an Access database from Visual C# .NET, retrieve data and display it using a DataGrid with ADO.NET, using a dataSet.
ADO.NET and Access database II
How to connect to an Access database from Visual C# .NET, retrieve data and display it in a listBox with ADO .NET, using a dataSet.
System.Web.HttpException: Maximum request length exceeded.
If you receive the ASP.NET error System.Web.HttpException: Maximum request length exceeded.” while trying to upload one or more files via HTTP, the cause is most likely a file uploading size limit that is set too low. The most accessible way to change this limit is through the web.config configuration file. Create this file if you […]
Getting input from keyboard
Getting the current pressed key on the keyboard, key combinations, key value and combining mouse clicks with key pressing.