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Home » C# programs » C# Directory class programs

C# program to search directory in a given directory



In this program, we will learn how to search directory in a given directory (path) using C# code? To search directory, we have to use static method GetDirectories() of Directory class.
Submitted by IncludeHelp, on November 13, 2017

Directory.GetDirectories()

This is a method of 'Directory' class, it returns list of matched sub-directories.

Syntax:

String[] Directory. GetDirectories(string path, SearchOption);

Parameter(s):

  1. path - It is a location of directory.
  2. Search Option
    1. TopDirectoryOnly - Search only in current directory.
    2. AllDirectories - Search in all sub-directories also.

Return value:

This method returns the array of strings that contains matched sub-directories.

Program

using System;
using System.IO;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main()
        {
            //Search in current directory only.
            String[] dirs1 = Directory.GetDirectories("D:/Sample", "Green color",SearchOption.TopDirectoryOnly);

            if (dirs1.Length == 0)
            {
                Console.WriteLine("1.Directory Not Found");
            }
            else
            {
                Console.WriteLine("Sub directories are:");
                for (int i = 0; i < dirs1.Length; i++)
                {
                    Console.WriteLine("\t" + dirs1[i]);
                }
            }

            //Search into all current directory .
            String[] dirs2 = Directory.GetDirectories("D:/Sample", "Green color", SearchOption.AllDirectories);

            if (dirs2.Length == 0)
            {
                Console.WriteLine("2.Directory Not Found");
            }
            else
            {
                Console.WriteLine("Sub directories are:");
                for (int i = 0; i < dirs2.Length; i++)
                {
                    Console.WriteLine("\t" + dirs2[i]);
                }
            }
        }
    }
}

Output

1.Directory Not Found
Sub directories are:
        D:/Sample\dir1\Green color
        D:/Sample\dir2\Green color

Note: In above program, we need to remember, when we use "Directory" class, System.IO namespace must be included in the program.






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