Click or drag to resize
StringLastIndexOfAny Method (Char, Int32, 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 and examines a specified number of character positions.

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

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.
count
Type: SystemInt32
The number of character positions to examine.

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 count or startIndex is negative.-or- The current instance does not equal Empty and startIndex minus count specifies a position that is not within this instance.
See Also