How to VB.NET String.substring()

Substring in Vb.Net String Class returns a new string that is a substring of this string. The substring begins at the specified given index and extended up to the given length.


  1. startIndex: The index of the start of the substring.
  2. length: The number of characters in the substring.


  1. The specified substring.


Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click

        Dim str As String
        Dim retString As String
        str = "This is substring test"
        retString = str.Substring(8, 9)

    End Sub
End Class

When you execute this program , its will display "subtring" in the messagebox. (C) 2021    Founded by raps mk
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