functions in c#
using System;
public class Program
{
public static void Main()
{
//functions can have retun type name and optional parameters
Console.WriteLine("-------functions---------");
float MilesToKm(float miles){
float km = miles*1.6f ;
return km ;
}
//calling a function
Console.WriteLine(MilesToKm(3.0f));
}
}c# funtion
public int AddNumbers(int number1, int number2){ int result = number1 + number2; if(result > 10) { return result; } return 0;}c# func
using System;
using System.Collections.Generic;
using static System.Console;
namespace CSFlow.Delegates.Others
{
public class ActionFunc
{
public static void Run ()
{
// Example of : Action
// Use action when a mathod return void
Action<string> display = new Action<string>(DisplayMessage);
display("Calculate Discount :");
// Example of : Func
// Use action when a mathod return value
Func<double, double> discount = new Func<double, double>(Discount);
display(discount(12.5).ToString());
List<Customer> custList = new List<Customer>();
custList.Add(new Customer { Id = 1, FirstName = "Joydip", LastName = "Kanjilal", State = "Telengana", City = "Hyderabad", Address = "Begumpet", Country = "India" });
custList.Add(new Customer { Id = 2, FirstName = "Steve", LastName = "Jones", State = "OA", City = "New York", Address = "Lake Avenue", Country = "US" });
custList.Add(new Customer { Id = 3, FirstName = "Sefat", LastName = "Anam", State = "OSA", City = "New York", Address = "Manhatten", Country = "US" });
// Example of : Predicate
// Use Predicate for search data
Predicate<Customer> FindAddress = customer => customer.Address == "Manhatten";
Customer searchData = custList.Find(FindAddress);
display($"{searchData?.FirstName} {searchData?.LastName} From - {searchData?.City} ");
ReadKey();
}
static void DisplayMessage (string message)
{
WriteLine(message);
}
static double Discount (double money)
{
return money * .5;
}
class Customer
{
public int Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public string Address { get; set; }
public string City { get; set; }
public string State { get; set; }
public string Country { get; set; }
}
}
}how to define a function in c#
//The "void" in this instance refers to the return type of this function
//This function won't have a return value.
void functionName(int parameter) {
//Code you want to run
}
//Calls the code in the function
functionName(Aninteger)Copyright © 2021 Codeinu
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