01 Gui Proramming

BIE 33103 DOT NET PROGRAMMING

SEM 1I 2016/2017 GUI PROGRAMMING

Introduction •

.NET is language independent

•

Supported language – C# and VB.NET

•

We will use C# in this class

•

What is the difference between ASP.NET and Classic ASP/PHP

- ASP.NET is compiled, classic ASP/PHP is interpreted. - PHP can be hosted in linux & windows, ASP.NET can only be hosted in windows •

We will use Visual Studio Express 2012 – it’s free, download & install

Download & Install VS 2012 Express

Your First Website

1

Creating the Web Site

3

2

4

5

Adding new item 3

2

1) Right click

Adding Web Forms (aspx file) 1 2

3 4

Writing the first script 2) Add code 1) Double click

Running your first web apps 1

2

It works !

Your first ASP.NET website

CodeBehind  



A technique which allows separation of markup (HTML, CSS etc) and code (C#,VB.NET etc) Scripting block (using <% %>) is fine for a small and simple example. VS added file called Default.aspx.cs

First, remove the script code Delete the scripting block & save the file

Open the code file (*.aspx.cs)

1) Click to expand

2) Double click

The object-oriented concept

namespace Inherited class Class name

Inheritance symbol method

Insert the code line

Insert code here, save then run(ctrl+F5)

And, it works !

Your first ASP.NET website using CodeBehind

Events 



ASP.NET is event-driven web apps Example of events: Page load, a click of a button

Adding controls

Add this code

Design view

Adding control event Double click

A new method has been added in the CodeBehind file

An attribute has been added

Adding code to the event

Add this code, save and run again

Test the control event

Click this button

Input text

The result

More events – creating own method Add event

Add control

Add method