Substring in Vb.Net String Class
By: Issac in VB.net Tutorials on 2009-01-30
In VB.Net, Substring
is a method of the String
class that is used to extract a substring from a given string. It has two overloads:
Substring(startIndex As Integer) As String
: This overload returns the substring that starts at the specifiedstartIndex
and continues to the end of the string.
Example usage:
Dim str As String = "Hello, world!" Dim subStr As String = str.Substring(7) 'subStr is "world!"
Substring(startIndex As Integer, length As Integer) As String
: This overload returns the substring that starts at the specifiedstartIndex
and has a length oflength
.
Example usage:
Dim str As String = "Hello, world!" Dim subStr As String = str.Substring(7, 5) 'subStr is "world"
Note that startIndex
is 0-based, which means that the first character in the string has an index of 0. Also, if startIndex
or length
is out of range, an exception will be thrown.
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