Understanding C# Methods

So far, all of your programming code has gone between the curly brackets of buttons. But this is not an effective way to programme. If you keep all your code in one place, it will become more and more unreadable the longer it gets. Instead, you can use something called a Method. A Method is just a segment of code that does a particular job. Think about the calculator programme you have been working on. You can have one Method ( a chunk of code) to add up, one to subtract, another...

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Debugging your C# Apps and Run Time Errors in C# .NET,Logic Errors

Debugging refers to the process of trying to track down errors in your programmes. It can also refer to handling potential errors that may occur. There are three types of errors that we'll take a look at: Design-time errors Run-Time errors Logical errors The longer your code gets, the harder it is to track down why things are not working. By the end of this section, you should have a good idea of where to start looking for problems. But bear in mind that debugging can be an art in...

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C# .NET - Checkboxes and Radio Buttons

Checkboxes and Radio Buttons are way to offer your users choices. Checkboxes allow a user to select multiple options, whereas Radio Buttons allow only one. Let's see how to use them. Start a new project. When your new form appears, make it nice and big. Because Checkboxes and Radio Buttons are small and fiddly to move around, its best to place them on a Groupbox. You can then move the Groupbox, and the Checkboxes and Radio Buttons will move with them. Locate the Groupbox control...

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Open File Dialogue Box in C#

We'll now give users the option to add their own images to the picture box, instead of the one we chose. To do that, you need to display an Open File dialogue box when the user clicks your View > View Images menu item. Dialogue boxes in C# can be added with the aid of an inbuilt object. Have a look in the Toolbox on the left hand side of Visual C#. There should be a category called Dialogs: All the dialogue boxes you are familiar with in Windows are on the list above. The...

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