Writing To Files
Sooner or later your going to need to save data in Visual Basic. That's where "Writing To Files" comes in. For example you have gathered a list of phone numbers, you can save that data, and then restore it again when your application starts. Read on.
Before writing to a file your going to have to locate it and open it. The Open statement does just that.
Opening FilesOpen TheFileYouWantToOpen For SelectedOpenMode As TheFileNumber
Open Modes: Meaning
| Append | Meaning that you need to write to the end of the file, if it exists, if not VB makes it |
| Input | Meaning you need to read from the file |
| Output | Meaning you need to OverWrite the file if it exists, if it doesn't exist VB makes it, and then writes to it |
Open "C:\My.dat" For Append As #1 Opening the file My.dat
Closing Files
Once you open, finish using it you should close it! Here's some code:
Close 1 Closes the file # 1
Or you might use:
Close Closes all files
Deleting Files
The keyword "Kill" Deletes the file, so your code might look something like this:
Kill "C:\my.dat"
Note: Kill Permanently deletes the file from your HD
Writing to Files
Write FileNumber, Expression
Your code might look something like this: Write #1, StrUserDescription
What it stores in the disk might look like this: "Tall, long hair, 135 lbs, American"
Inputting from Files
Input FileNumber, Expression
Your code might look something like this: Input #1, StrUserDescription
Tip: Write# & Input# work together, for example you would use Input# to read files that were saved w/ Write#
We ain't done yet...
