Saving and retrieving Columns in textfile

See more:

C#

I am using Column Chooser so that I can drag column from Grid view which I don't required so for e.g I choose 3 column(Name, Type, Company) and I dragged into chooser and I exit that Application and again If Run that Application I want that the column which I dragged into chooser as above mentioned I want that the column should remain in chooser only. For this process My Sir has given some hint that make text file and save the columns which are there in chooser and also again if you run application the columns should remain in that chooser only. So how it possible please help Me.