Returns the index of the last occurrence of a specified string within the current instance.
Parameters
- value
- A string .
Returns
A int that indicates the result of the search for value in the current instance as follows:
Return Value Description A zero-based number equal to the index of the start of the last substring in the current instance that is equal to value . value was found. -1 value was not found.
Exceptions
Type Reason ArgumentNullException value is a null reference.
Remarks
The search is case-sensitive.
Requirements
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0