True or False: The Open File dialog box automatically opens a file.
2.
What symbol is used to separate a filter description from its extension?
3.
What Namespace is used to manipulate files?
4.
What arguments are expected by System.IO.File.Copy()?
5.
How would you rename a file?
6.
True or False: Files deleted with System.IO.File.Delete() are sent to the Recycle Bin.
7.
What object is used to manipulate folders?
Answers
1.
False
2.
The Pipe symbol (|)
3.
System.IO
4.
The name and path of the source file and a name and path for the copy.
5.
Use the Move() method while retaining the path.
6.
False. The files are permanently deleted.
7.
System.IO.Directory
Exercises
1.
Create a project that enables a user to select a file with the Open Dialog control. Store the filename in a text box. Provide another button that, when clicked, creates a backup of the file by making a copy of it with the extension .bak.
2.
Create a project with a text box on a form in which the user can type in a three-digit file extension. Include a button that shows an Open File dialog box when clicked, with the filter set to the extension entered by the user.
