String.Concat Method (Object)
.NET Framework 4
Updated: July 2010
Creates the string representation of a specified object.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- arg0
- Type: System.Object
The object to represent, or null.
Return Value
Type: System.StringThe string representation of the value of arg0, or String.Empty if arg0 is null.
The following example demonstrates the Concat method.
using System; class stringConcat5 { public static void Main() { int i = -123; Object o = i; Object[] objs = new Object[] {-123, -456, -789}; Console.WriteLine("Concatenate 1, 2, and 3 objects:"); Console.WriteLine("1) {0}", String.Concat(o)); Console.WriteLine("2) {0}", String.Concat(o, o)); Console.WriteLine("3) {0}", String.Concat(o, o, o)); Console.WriteLine("\nConcatenate 4 objects and a variable length parameter list:"); Console.WriteLine("4) {0}", String.Concat(o, o, o, o)); Console.WriteLine("5) {0}", String.Concat(o, o, o, o, o)); Console.WriteLine("\nConcatenate a 3-element object array:"); Console.WriteLine("6) {0}", String.Concat(objs)); } } // The example displays the following output: // Concatenate 1, 2, and 3 objects: // 1) -123 // 2) -123-123 // 3) -123-123-123 // // Concatenate 4 objects and a variable length parameter list: // 4) -123-123-123-123 // 5) -123-123-123-123-123 // // Concatenate a 3-element object array: // 6) -123-456-789
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
