String.Concat Method (String[])

The method concatenates each object in values; it does not add any delimiters.

An Empty string is used in place of any null object in the array.

The following example demonstrates the use of the Concat method with a String array.

using System;

public class ConcatTest {
    public static void Main() {

        // make an array of strings. Note that we have included spaces 
        string [] s = { "hello ", "and ", "welcome ", "to ", "this ", "demo! " };

        // put all the strings together
        Console.WriteLine(string.Concat(s));

        // sort the strings, and put them together
        Array.Sort(s);
        Console.WriteLine(string.Concat(s));
    }
}

.NET Framework

.NET Framework Client Profile

Portable Class Library

.NET for Windows Store apps

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference