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String.Concat Method (String, String)

Concatenates two specified instances of String.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
public static string Concat(
	string str0,
	string str1
)

Parameters

str0
Type: System.String

The first string to concatenate.

str1
Type: System.String

The second string to concatenate.

Return Value

Type: System.String
The concatenation of str0 and str1.

The method concatenates str0 and str1; it does not add any delimiters.

An Empty string is used in place of any null argument.

The following example concatenates a person's first, middle, and last name.

using System;

public class ConcatTest {
    public static void Main() {

        // we want to simply quickly add this person's name together 
        string fName = "Simon";
        string mName = "Jake";
        string lName = "Harrows";

        // because we want a name to appear with a space in between each name,  
        // put a space on the front of the middle, and last name, allowing for 
        // the fact that a space may already be there
        mName = " " + mName.Trim();
        lName = " " + lName.Trim();

        // this line simply concatenates the two strings
        Console.WriteLine("Welcome to this page, '{0}'!", string.Concat( string.Concat(fName, mName), lName ) );
    }
}

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

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.

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