VB problem, a small problem with the ListView1 control

a: You can define a class in the background to store the status of each file, then add it to the bindinglist and bind it to the datagridview

B, you can encapsulate the code in a Dll. If you create a new project in your solution, select the class library under Windows, you can add relevant classes to the class library, and then reference the class library in your original project.

cYour idea is a formal idea, and many such software are produced in this way