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StringLastIndexOfAny Method (Char, Int32)
Reports the zero-based index position of the last occurrence in this instance of one or more characters specified in a Unicode array. The search starts at a specified character position.

Namespace: System
Assembly: mscorlib (in mscorlib.dll) Version: 4.0.0.0
Syntax
C#
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public int LastIndexOfAny(
	char[] anyOf,
	int startIndex
)

Parameters

anyOf
Type: SystemChar
A Unicode character array containing one or more characters to seek.
startIndex
Type: SystemInt32
The search starting position. The search proceeds from startIndex toward the beginning of this instance.

Return Value

Type: Int32
The index position of the last occurrence in this instance where any character in anyOf was found; -1 if no character in anyOf was found or if the current instance equals Empty.
Exceptions
ExceptionCondition
ArgumentNullExceptionanyOf is null.
ArgumentOutOfRangeExceptionThe current instance does not equal Empty and startIndex specifies a position not within this instance.
See Also