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.NET Framework Class Library

String.Substring Method (Int32)

Retrieves a substring from this instance. The substring starts at a specified character position and continues to the end of the string.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
Public Function Substring ( _
	startIndex As Integer _
) As String


Type: System.Int32

The zero-based starting character position of a substring in this instance.

Return Value

Type: System.String
A string that is equivalent to the substring that begins at startIndex in this instance, or Empty if startIndex is equal to the length of this instance.
Exception Condition

startIndex is less than zero or greater than the length of this instance.

The index is zero-based.

Note Note

This method does not modify the value of the current instance. Instead, it returns a new string that begins at the startIndex position in the current string.

The following example demonstrates obtaining a substring from a string.

Public Class SubStringTest

    Public Shared Sub Main()
        Dim info As String() = {"Name: Felica Walker", "Title: Mz.", "Age: 47", "Location: Paris", "Gender: F"}
        Dim found As Integer = 0

        Console.WriteLine("The initial values in the array are:")
        Dim s As String 
        For Each s In  info

        Next s
        Console.WriteLine("{0}We want to retrieve only the key information. That is:", Environment.NewLine)

        For Each s In  info
            found = s.IndexOf(":")
            Console.WriteLine(s.Substring((found + 1)))
        Next s
    End Sub 'Main
End Class 'SubStringTest
' The example displays the following output to the console: 
'       The initial values in the array are: 
'       Name: Felica Walker 
'       Title: Mz. 
'       Age: 47 
'       Location: Paris 
'       Gender: F 
'       We want to retrieve only the key information. That is: 
'       Felica Walker 
'       Mz. 
'       47 
'       Paris 
'       F

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, 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.