Showing posts with label Extension Methods in C#. Show all posts
Showing posts with label Extension Methods in C#. Show all posts

5 September 2013

Extension Methods in C#

Extension Methods in C#

Extension methods enable you to "add" methods to existing types without creating a new derived type, recompiling, or otherwise modifying the original type. Extension methods are a special kind of static method, but they are called as if they were instance methods on the extended type.

Remove $ from the string using Extension Methods in C#

using System;
using System.Windows.Forms;

namespace ExtensionMethodsExample
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            ExtensionMethodExample();
        }


        private void ExtensionMethodExample()
        {
            string dollarval = "2000$";

            dollarval = dollarval.RemoveDollarSign();
        }
    }


    public static class RemoveDollar
    {
        public static String RemoveDollarSign(this string dollarval)
        {
            string val = dollarval.Replace("$", "");
            return val;
        }

    }

}




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