Eof Function

Determines if the file pointer has reached the end of a file.

Syntax:

Eof (intexpression As Integer)

Návratová hodnota:

Bool

Paremetre:

Intexpression: Any integer expression that evaluates to the number of an open file.

Use EOF to avoid errors when you attempt to get input past the end of a file. When you use the Input or Get statement to read from a file, the file pointer is advanced by the number of bytes read. When the end of a file is reached, EOF returns the value "True" (-1).

Error codes:

5 Neplatné volanie procedúry

52 Nesprávny názov alebo číslo súboru

PrĂ­klad:

Sub ExampleWorkWithAFile

Dim iNumber As Integer

Dim sLine As String

Dim aFile As String

Dim sMsg As String

    aFile = "c:\data.txt"

    iNumber = Freefile

    Open aFile For Output As #iNumber

    Print #iNumber, "PrvĂ˝ riadok textu"

    Print #iNumber, "Ďalší riadok textu"

    Close #iNumber

    iNumber = Freefile

    Open aFile For Input As iNumber

    While Not eof(iNumber)

        Line Input #iNumber, sLine

        If sLine <>"" Then

            sMsg = sMsg & sLine & chr(13)

        End If

    Wend

    Close #iNumber

    MsgBox sMsg

End Sub