Call Methods with Default Parameters in C# 4.0

Introduction

In the c# 4.0, has a great features, when we call method, we can supply the default values to that arguments. just follow my below sample code.

Code Snippet

using System.IO;

class Program
{
static void Main(string[] args)
{
ShowFolders();
ShowFolders(@"C:\");
}
static void ShowFolders(string root = @"C:\",bool showFullPath = false)
{
foreach (string folder in Directory.EnumerateDirectories(root))
{
string output =
showFullPath ? folder : Path.GetFileName(folder);
Console.WriteLine(output);
}
}
}

But in this sample you have to take one more thing, when you define  your method signature wiht default value to the argument, you have to keep first order is default value parameter, then non default value parameters.

Like following,

static void ShowFolders(string root = @”C:\”, bool showFullPath )
{
}

that's its one of the cool features in C# 4.0.i hope this tips help to learn about new features in C# 4.0.

thank you