String.Concat Method (Object, Object)
.NET Framework (current version)
Concatenates the string representations of two specified objects.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- arg0
-
Type:
System.Object
The first object to concatenate.
- arg1
-
Type:
System.Object
The second object to concatenate.
Return Value
Type: System.StringThe concatenated string representations of the values of arg0 and arg1.
The method concatenates arg0 and arg1by calling the parameterless ToString method of arg0 and arg1; it does not add any delimiters.
String.Empty is used in place of any null argument.
If either of the arguments is an array reference, the method concatenates a string representing that array, instead of its members (for example, "System.String[]").
The following example demonstrates the Concat method.
Class stringConcat5 Public Shared Sub Main() Dim i As Integer = - 123 Dim o As [Object] = i Dim objs() As [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(vbCrLf & "Concatenate 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(vbCrLf & "Concatenate a 3-element object array:") Console.WriteLine("6) {0}", [String].Concat(objs)) End Sub End Class '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
Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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