String.IndexOfAny Method (array<Char>[]()[])
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Reports the zero-based index of the first occurrence in this instance of any character in a specified array of Unicode characters.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Syntax
Public Function IndexOfAny ( _
anyOf As Char() _
) As Integer
public int IndexOfAny(
char[] anyOf
)
Parameters
- anyOf
Type: array<System..::.Char>[]()[]
A Unicode character array containing one or more characters to seek.
Return Value
Type: System..::.Int32
The zero-based index position of the first occurrence in this instance where any character in anyOf was found; otherwise, -1 if no character in anyOf was found.
Exceptions
| Exception | Condition |
|---|---|
| ArgumentNullException | anyOf is nullNothingnullptra null reference (Nothing in Visual Basic). |
Remarks
Index numbering starts from zero.
The search for anyOf is case-sensitive.
This method performs an ordinal (culture-insensitive) search, where a character is considered equivalent to another character only if their Unicode scalar values are the same. To perform a culture-sensitive search, use the CompareInfo..::.IndexOf method, where a Unicode scalar value representing a precomposed character, such as the ligature 'Æ' (U+00C6), might be considered equivalent to any occurrence of the character's components in the correct sequence, such as "AE" (U+0041, U+0045), depending on the culture.
Version Notes
Windows Phone
If you pass an invalid parameter value, IndexOfAny throws an ArgumentOutOfRangeException instead of an ArgumentNullException.
Version Information
Windows Phone OS
Supported in: 8.1, 8.0, 7.1, 7.0
Platforms
Windows Phone