Return the index of the string : String Find « Data Type « VB.Net Tutorial






  1. VB.Net Tutorial
  2. Data Type
  3. String Find
Option Strict On
 Imports System

 Class Tester
     Public Shared Sub Main( )
         Dim s1 As String = "abcd"
         Dim s2 As String = "ABCD"
         Dim s3 As String = "AAAAs "
         s3 = s3 & "development"

         Console.WriteLine("s3: {0}", s3)
         
         Console.Write("The first occurrence of a ")
         Console.WriteLine(s3.IndexOf("a"))


     End Sub 'Main
 End Class 'Tester

s3: AAAAs development
The first occurrence of a -1




2.33.String Find
2.33.1.Demonstrating StartsWith and EndsWith methods
2.33.2.Return the index of the string
2.33.3.Use IndexOf to locate a substring in a string
2.33.4.Use LastIndexOf to find a substring in a string
2.33.5.Use IndexOfAny to find first occurrence of character in array
2.33.6.Use LastIndexOfAny to find first occurrence of character in array
2.33.7.String Index of any
2.33.8.Use the LastIndexOf(Char) method to find the last directory separator character in a string
2.33.9.EndsWith method.
2.33.10.Find the index of the last occurrence of any character in the string "is" within another string.
2.33.11.IsMatch(String) determines whether a string is a valid to Regular expression