How to save in C#!

Hi, i understood that there are lots of posts regarding saving datas. However, i couldnt find any post regarding saving strings and integers in C# language(Visual Basic 2005). Im working on an emulator, and im trying to save data typed in textboxes, and later retrieve the data. However, i cant find and i dont know the suitable coding for it. Can anybody help or at least show me the link where i can find any resourceful informations. Thank you.