Method FindIndex

FindIndex(Func<T, Boolean>)

Check if there exists an item that satisfies a specific predicate in this collection and return the index of the first one.

Declaration
int FindIndex(Func<T, bool> predicate)
Parameters
Type Name Description
Func<T, System.Boolean> predicate

A delegate (Func<, > with 

R == bool
) defining the predicate
Returns
Type Description
System.Int32

the index, if found, a negative value else