How to Use the string. indexof method (C #)

String. indexof method (char ,[ Startindex
], [ Count
])

The index of the first matching item of the specified character in this instance. Searches start from the specified character location and checks the specified number of character locations.

Parameters

Value

Unicode character to be searched. PairValue
The search area is case sensitive.

Startindex (int32)

Optional. Start position of the search. If this parameter is not set, it starts from 0.

Count (int32)

Optional. number of characters to be checked.

 

 

Return Value

If this character is found, it isValue
Or-1 if not found.

Note:

It is searched from left to right. If it is from right to left, lastindexof is called.