Svetlin Nakov Technical Trainer Software University

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What is ASP.NET Server Control?  ASP.NET server controls  The simplest ASP.NET components  Wrap an HTML UI element, or more complex UI  Component-oriented programming model  Executed and rendered at the server side  Example of ASP.NET server controls:     … 4

5  The "C# Basics" course:  First steps in computer programming:  Compiler, IDE, variables, control-flow logic, console I/O, loops  Establish algorithmic thinking  Development of problems solving skills  Prepare for learning other languages and software technologies  Java, PHP, HTML, CSS, JavaScript, PHP  Databases & SQL, high-quality code  Web development technologies Sample Slide

6  Write a program that enters a positive integer number N from the console (1 ≤ N ≤ 100) and prints a new year tree of size N, following the examples below: C# Exam – Sample Problem N = 2 | * | * * | * ** | ** N = 3 | * | * * | * ** | ** ** | ** *** | *** N = 5 | * | * * | * ** | ** ** | ** *** | *** *** | *** **** | **** **** | **** ***** | ***** N = 1 | * | * N = 4 | * | * * | * ** | ** ** | ** *** | *** *** | *** **** | ****

7 C# Exam – Sample Solution static void Main() { int n = int.Parse(Console.ReadLine()); int n = int.Parse(Console.ReadLine()); for (int i = 0; i <= n; i++) for (int i = 0; i <= n; i++) { int asterisksCount = i; int asterisksCount = i; string asterisks = new string('*', asterisksCount); string asterisks = new string('*', asterisksCount); int spacesCount = n - asterisksCount; int spacesCount = n - asterisksCount; string spaces = new string(' ', spacesCount); string spaces = new string(' ', spacesCount); Console.Write(spaces); Console.Write(spaces); Console.Write(asterisks); Console.Write(asterisks); Console.Write(" | "); Console.Write(" | "); Console.Write(asterisks); Console.Write(asterisks); Console.WriteLine(spaces); Console.WriteLine(spaces); }}

Sample C# program: using System; class HelloCSharp { static void Main() static void Main() { Console.WriteLine("Hello, C#"); Console.WriteLine("Hello, C#"); }} 8

C# Code – How It Works? 9 using System; class HelloCSharp { static void Main() static void Main() { Console.WriteLine("Hello, C#"); Console.WriteLine("Hello, C#"); }} Include the standard.NET namespace " System " Define a class called " HelloCSharp " Define the Main() method – the program entry point Print a text on the console by calling the method " WriteLine " of the class " Console "

ASP.NET Control HTML Tag … … … Basic Web Controls  HTML 10

What is ASP.NET Server Control? (2)  Mandatory properties for all server controls:  runat="server"  ID="…"  Programming model based on events  Each user interaction causes an event  Developer decides which events to handle  Browser-specific HTML is generated  Controls deliver appropriate HTML depending on browser type 11

12 ……………… Summary

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License  This course (slides, examples, demos, videos, homework, etc.) is licensed under the "Creative Commons Attribution- NonCommercial-ShareAlike 4.0 International" licenseCreative Commons Attribution- NonCommercial-ShareAlike 4.0 International 14  Attribution: this work may contain portions from  "Fundamentals of Computer Programming with C#" book by Svetlin Nakov & Co. under CC-BY-SA licenseFundamentals of Computer Programming with C#CC-BY-SA  "C# Part I" course by Telerik Academy under CC-BY-NC-SA licenseC# Part ICC-BY-NC-SA

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