Understanding Commands in WPF: A Cleaner Alternative to Button Click Events

Many WPF developers start by using Button Click events for handling user actions. At first, this seems simple and straightforward. But very soon, the code-behind file becomes huge , and maintaining it turns into a challenge. One big problem arises: when the logic changes, the button does not enable or disable automatically , and testing button click logic becomes very difficult. So the big question is: Is there a better way to handle button actions in WPF? The answer is Commands . In this post, we’ll learn how to use Commands in WPF with a simple, practical example. We’ll cover: What a Command is How it works Why using Commands is better than Click events How buttons can automatically enable or disable based on conditions What is a Command in WPF? In WPF, a Command acts as a middle layer between the UI and your logic. Instead of the button directly calling a method, it triggers a Command , and the Command decides: What code should run Whether the button s...
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How to print Hello World on console using reflection in C#?

using System;

namespace ConsoleProject
{
    class Program
    {
        static void Main(string[] args)
        {
            //get the method by method name and with string argument types
            //Here GetMethod() will return the info of WriteLine(string value)
            //and invoke() will call WriteLine method by passing the string "Hello World"

            //this line equivalent to Console.WriteLine("Hello World");

            typeof(Console).GetMethod("WriteLine", new Type[] { typeof(string) }).Invoke(default, new object[] { "Hello World" });
            Console.ReadLine();

        }
    }
}

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