How many ways to compare String values in Dot Net?

Above all methods are used to Compare string values.
In String.Compare method -
Dim n As Integer = String.Compare(string1, string2)-> If both strings are same and in upper/lower case. If it returns 0 then both strings are EQUAL.

Dim n As Integer = String.Compare(string1, string2,True) -> In this case, if 1 string is in lower case and other is in upper case, and ignore case will be True, it also returns 0.