Eof Function

рдирд┐рд░реНрдзрд╛рд░рд┐рдд рдХрд░рддрд╛ рд╣реИ рдХрд┐ рдлрд╝рд╛рдЗрд▓ рдкрд╛рдЗрдВрдЯрд░ рдлрд╝рд╛рдЗрд▓ рдХреЗ рдЕрдВрдд рдореЗрдВ рдкрд╣реБрдБрдЪ рдЧрдпрд╛ рд╣реИ.

Syntax:

Eof (intexpression As Integer)

рд╡рд╛рдкрд╕реА рдореВрд▓реНрдп:

Bool

рдкреИрд░рд╛рдореАрдЯрд░

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 Invalid procedure call

52 Invalid file name or file number

рдЙрджрд╛рд╣рд░рдг:

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, "First line of text"

    Print #iNumber, "Another line of text"

    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