String.Concat Method (String, String, String)


Concatenates three specified instances of String.

Namespace:   System
Assembly:  mscorlib (in mscorlib.dll)

public static string Concat(
	string str0,
	string str1,
	string str2


Type: System.String

The first string to concatenate.

Type: System.String

The second string to concatenate.

Type: System.String

The third string to concatenate.

Return Value

Type: System.String

The concatenation of str0, str1, and str2.

The method concatenates str0, str1, and str2; it does not add any delimiters.


You can also use your language's string concatenation operator, such as + in C#, or & and + in Visual Basic)

, to concatenate strings.

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

The following example uses the Concat method to concatenate three strings and displays the result.

using System;

public class Example
   public static void Main()
      String s1 = "We went to a bookstore, ";
      String s2 = "a movie, ";
      String s3 = "and a restaurant.";

      var s = String.Concat(s1, s2, s3);
// The example displays the following output:
//      We went to a bookstore, a movie, and a restaurant. 

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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