Save/Load a list

Question

I've made an application that try random 4 length numbers without repeating them using a list to check if the number is already tried but now I need a way to save and load the list to don't repeat if the application crash or have to be closed.
Thank you

Sergio Fonseca · Answer

I made it using txt files but thank you for your help.

Len L · Answer

You could try using the registry. After you check your list build a comma seperated string of your lists values then save the string to a registry eg [HKEY_CURRENT_USER\your key\your list\123456789 repeat the process each time you update the list. if you close your application or it crashes the registry will have a current list of values for you to re-load when needed. There probably is a better way this may be a start.