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ArrayIndexOf Method (Array, Object)
Searches for the specified object and returns the index of the first occurrence within the entire one-dimensional Array.

Namespace: System
Assembly: mscorlib (in mscorlib.dll) Version: 4.0.0.0
Syntax
C#
Copy
public static int IndexOf(
	Array array,
	Object value
)

Parameters

array
Type: SystemArray
The one-dimensional Array to search.
value
Type: SystemObject
The object to locate in array.

Return Value

Type: Int32
The index of the first occurrence of value within the entire array, if found; otherwise, the lower bound of the array minus 1.
Exceptions
ExceptionCondition
ArgumentNullExceptionarray is null.
RankExceptionarray is multidimensional.
See Also