Information
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

String.IndexOfAny Method

Reports the index of the first occurrence in this instance of any character in a specified array of Unicode characters.

Overload List

Reports the index of the first occurrence in this instance of any character in a specified array of Unicode characters.

Supported by the .NET Compact Framework.

[Visual Basic] Overloads Public Function IndexOfAny(Char()) As Integer
[C#] public int IndexOfAny(char[]);
[C++] public: int IndexOfAny(__wchar_t __gc[]);
[JScript] public function IndexOfAny(Char[]) : int;

Reports the index of the first occurrence in this instance of any character in a specified array of Unicode characters. The search starts at a specified character position.

Supported by the .NET Compact Framework.

[Visual Basic] Overloads Public Function IndexOfAny(Char(), Integer) As Integer
[C#] public int IndexOfAny(char[], int);
[C++] public: int IndexOfAny(__wchar_t __gc[], int);
[JScript] public function IndexOfAny(Char[], int) : int;

Reports the index of the first occurrence in this instance of any character in a specified array of Unicode characters. The search starts at a specified character position and examines a specified number of character positions.

Supported by the .NET Compact Framework.

[Visual Basic] Overloads Public Function IndexOfAny(Char(), Integer, Integer) As Integer
[C#] public int IndexOfAny(char[], int, int);
[C++] public: int IndexOfAny(__wchar_t __gc[], int, int);
[JScript] public function IndexOfAny(Char[], int, int) : int;

Example

[Visual Basic, C#, C++] Note   This example shows how to use one of the overloaded versions of IndexOfAny. For other examples that might be available, see the individual overload topics.
[Visual Basic] 
' Sample for String.IndexOfAny(Char[], Int32, Int32)
Imports System

Class Sample
   Public Shared Sub Main()
      Dim br1 As String = "0----+----1----+----2----+----3----+----4----+----5----+----6----+-"
      Dim br2 As String = "0123456789012345678901234567890123456789012345678901234567890123456"
      Dim str As String = "Now is the time for all good men to come to the aid of their party."
      Dim start As Integer
      Dim at As Integer
      Dim count As Integer
      Dim target As String = "aid"
      Dim anyOf As Char() = target.ToCharArray()
      
      start =(str.Length - 1) / 3
      count =(str.Length - 1) / 4
      Console.WriteLine()
      Console.WriteLine("The first character occurrence from position {0} for {1} characters.", start, count)
      Console.WriteLine("{1}{0}{2}{0}{3}{0}", Environment.NewLine, br1, br2, str)
      Console.Write("A character in '{0}' occurs at position: ", target)
      
      at = str.IndexOfAny(anyOf, start, count)
      If at > - 1 Then
         Console.Write(at)
      Else
         Console.Write("(not found)")
      End If
      Console.WriteLine()
   End Sub 'Main
End Class 'Sample
'
'The first character occurrence from position 22 for 16 characters.
'0----+----1----+----2----+----3----+----4----+----5----+----6----+-
'0123456789012345678901234567890123456789012345678901234567890123456
'Now is the time for all good men to come to the aid of their party.
'
'A character in 'aid' occurs at position: 27
'

[C#] 
// Sample for String.IndexOfAny(Char[], Int32, Int32)
using System;

class Sample {
    public static void Main() 
    {
    string br1 = "0----+----1----+----2----+----3----+----4----+----5----+----6----+-";
    string br2 = "0123456789012345678901234567890123456789012345678901234567890123456";
    string str = "Now is the time for all good men to come to the aid of their party.";
    int start;
    int at;
    int count;
    string target = "aid";
    char[] anyOf = target.ToCharArray();

    start = (str.Length-1)/3;
    count = (str.Length-1)/4;
    Console.WriteLine();
    Console.WriteLine("The first character occurrence from position {0} for {1} characters.", start, count);
    Console.WriteLine("{1}{0}{2}{0}{3}{0}", Environment.NewLine, br1, br2, str);
    Console.Write("A character in '{0}' occurs at position: ", target);

    at = str.IndexOfAny(anyOf, start, count);
    if (at > -1) 
        Console.Write(at);
    else
        Console.Write("(not found)");
    Console.WriteLine();
    }
}
/*

The first character occurrence from position 22 for 16 characters.
0----+----1----+----2----+----3----+----4----+----5----+----6----+-
0123456789012345678901234567890123456789012345678901234567890123456
Now is the time for all good men to come to the aid of their party.

A character in 'aid' occurs at position: 27

*/

[C++] 
// Sample for String::IndexOfAny(Char[], Int32, Int32)
#using <mscorlib.dll>

using namespace System;

int main() {
   String* br1 = S"0----+----1----+----2----+----3----+----4----+----5----+----6----+-";
   String* br2 = S"0123456789012345678901234567890123456789012345678901234567890123456";
   String* str = S"Now is the time for all good men to come to the aid of their party.";
   int start;
   int at;
   int count;
   String* target = S"aid";
   Char anyOf[] = target->ToCharArray();

   start = (str->Length-1)/3;
   count = (str->Length-1)/4;
   Console::WriteLine();
   Console::WriteLine(S"The first character occurrence from position {0} for {1} characters.", __box( start), __box( count));
   Console::WriteLine(S"{1}{0}{2}{0}{3}{0}", Environment::NewLine, br1, br2, str);
   Console::Write(S"A character in '{0}' occurs at position: ", target);

   at = str->IndexOfAny(anyOf, start, count);
   if (at > -1)
      Console::Write(at);
   else
      Console::Write(S"(not found)");
   Console::WriteLine();
}
/*

The first character occurrence from position 22 for 16 characters.
0----+----1----+----2----+----3----+----4----+----5----+----6----+-
0123456789012345678901234567890123456789012345678901234567890123456
Now is the time for all good men to come to the aid of their party.

A character in 'aid' occurs at position: 27

*/

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.

See Also

String Class | String Members | System Namespace

Was this page helpful?
(1500 characters remaining)
Thank you for your feedback
Show:
© 2014 Microsoft