How do I get everything after a certain index in string c#

Lets say I have the string:

"MyNamespace.SubNameSpace.MyClassName"

How do I extract just everything after the last period,开发者_如何学Go "MyClassName"

Use String.Substring and String.LastIndexOf methods.

string str = "MyNamespace.SubNameSpace.MyClassName";
string str1 = str.Substring(str.LastIndexOf('.') + 1);