String.IndexOfAny Method (Char, Int32)
Reports the zero-based 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.
Assembly: mscorlib (in mscorlib.dll)
- Type: System.Char
A Unicode character array containing one or more characters to seek.
- Type: System.Int32
The search starting position.
Return ValueType: System.Int32
The zero-based index position of the first occurrence in this instance where any character in anyOf was found; -1 if no character in anyOf was found.
Index numbering starts from zero. The startIndex parameter can range from 0 to one less than the length of the string instance.
The search ranges from startIndex to the end of the string.
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 value 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.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.