String.Concat Method (Object)
.NET Framework 4.5
Creates the string representation of a specified object.
Namespace: System
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 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.
