String.Length Property

Gets the number of characters in the current String object.

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

Public ReadOnly Property Length As Integer
Dim instance As String
Dim value As Integer

value = instance.Length

/** @property */
public int get_Length ()

public function get Length () : int

Not applicable.

Property Value

The number of characters in this instance.

The Length property returns the number of Char objects in this instance, not the number of Unicode characters. The reason is that a Unicode character might be represented by more than one Char. Use the System.Globalization.StringInfo class to work with each Unicode character instead of each Char.

In some languages, such as C and C++, a null character indicates the end of a string. In the .NET Framework, a null character can be embedded in a string. When a string includes one or more null characters, they are included in the length of the total string. For example, in the following string, the substrings "abc" and "def" are separated by a null character. The Length property returns 7, which indicates that it includes the six alphabetic characters as well as the null character.

The following code example demonstrates the Length property.

' Sample for String.Length
Imports System

Class Sample
   Public Shared Sub Main()
      Dim str As String = "abcdefg"
      Console.WriteLine("1) The length of '{0}' is {1}", str, str.Length)
      Console.WriteLine("2) The length of '{0}' is {1}", "xyz", "xyz".Length)
   End Sub 'Main
End Class 'Sample
'This example produces the following results:
'1) The length of 'abcdefg' is 7
'2) The length of 'xyz' is 3

// Sample for String.Length
import System.*;

class Sample
    public static void main(String[] args)
        String str = "abcdefg";
        Console.WriteLine("1) The length of '{0}' is {1}", str, 
        Console.WriteLine("2) The length of '{0}' is {1}", "xyz", 
    } //main
} //Sample
This example produces the following results:
1) The length of 'abcdefg' is 7
2) The length of 'xyz' is 3

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0