Concludes input/output (I/O) to a file opened using the
My gives you better productivity and performance in file I/O operations. See FileSystem for more information.
public static void FileClose (params int FileNumbers);
Optional. Parameter array of 0 or more channels to be closed.
FileNumber does not exist.
This example uses the
FileClose function to close a file opened for
Dim TextLine As String FileOpen(1, "TESTFILE", OpenMode.Input) ' Open file. Do While Not EOF(1) ' Loop until end of file. TextLine = LineInput(1) ' Read line into variable. MsgBox(TextLine) ' Display the line Loop FileClose(1) ' Close file.
FileClose function is provided for backward compatibility and may affect performance. For non-legacy applications, the
My.Computer.FileSystem object provides better performance. For more information, see How to: Read Text from Files with a StreamReader,How to: Write Text to Files with a StreamWriter, and Walkthrough: Manipulating Files and Directories in Visual Basic.
If you omit
FileNumbers, all active files opened by the
FileOpen function are closed.
When you close files that were opened for
Append, the final buffer of output is written to the operating system buffer for that file. All buffer space associated with the closed file is released.
FileClose function is executed, the association of a file with its file number ends.
- See Also