converting to .net

[Ryan Epinos]

How would i convert this on vb.net?

Open DestinFile For Input As #25
If LOF(25) > 0 Then
Close()
GoTo AllreadyE
End If

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[vvenk]

Dim lfsTemp As FileStream
Dim lbwTemp As BinaryWriter
Dim lbTemp() As Byte

Try
lfsTemp = New FileStream("MyFileName", FileMode.Create)
lbwTemp = New BinaryWriter(lfsTemp, System.Text.Encoding.Default)
lbTemp = System.Text.Encoding.Default.GetBytes(stringFileCo ntent)
lbwTemp.Write(lbTemp)
lbwTemp.Close()
lfsTemp.Close()
lbwTemp = Nothing
lfsTemp = Nothing
Catch ex As Exception
MsgBox (string.Concat("Cannot write file, ", "MyFileName"))
End Try

"Ryan Epinos" wrote:

How would i convert this on vb.net?

Open DestinFile For Input As #25
If LOF(25) > 0 Then
Close()
GoTo AllreadyE
End If

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[Mattias Sjögren]

Ryan,

How would i convert this on vb.net?

Seems like you're just checking if a file exists and has a non-zero
length, in which case you can do

Dim fi As new FileInfo(DestinFile)
If fi.Exists AndAlso fi.Length > 0 Then ...

Mattias

--
Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

[Ryan Epinos]

would you guys consider this:

Before:
Open DestinFile For Input As #25
If LOF(25) > 0 Then
Close()
GoTo AllreadyE
End If

After:

FileOpen(25, DestinFile, OpenMode.Output)
WriteLine(25, "DestinFile")
If LOF(25) > 0 Then
Close()
GoTo AllreadyE
End If

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[Terry Olsen]

AndAlso...never heard of that. Is it the same as just And?

"Mattias Sjögren" <ma********************@mvps.org> wrote in message
news:uH**************@TK2MSFTNGP10.phx.gbl...

If fi.Exists AndAlso fi.Length > 0 Then ...

[Abubakar]

> AndAlso...never heard of that. Is it the same as just And?

No its works differently (from msdn):

"A logical operation is said to be short-circuiting if the compiled code can
bypass the evaluation of one expression depending on the result of another
expression. If the result of the first expression evaluated determines the
final result of the operation, there is no need to evaluate the other
expression, because it cannot change the final result. Short-circuiting can
improve performance if the bypassed expression is complex, or if it involves
procedure calls."

"And" used to evaluate both expressions, "AndAlso" works as mentioned above.

Ab.
http://joehacker.blogspot.com
there are better things to discuss like :
http://www.msnbc.msn.com/id/7328143/

"Terry Olsen" <to******@hotmail.com> wrote in message
news:u3****************@TK2MSFTNGP14.phx.gbl...

AndAlso...never heard of that. Is it the same as just And?

"Mattias Sjögren" <ma********************@mvps.org> wrote in message
news:uH**************@TK2MSFTNGP10.phx.gbl...

If fi.Exists AndAlso fi.Length > 0 Then ...

[Terry Olsen]

That makes it sound a bit like the OR operator...

Except that OR probably evaluates both expressions regardless...

"Abubakar" <ab*******@gmail.com> wrote in message
news:OT*************@TK2MSFTNGP10.phx.gbl...

AndAlso...never heard of that. Is it the same as just And?

No its works differently (from msdn):

"A logical operation is said to be short-circuiting if the compiled code
can
bypass the evaluation of one expression depending on the result of another
expression. If the result of the first expression evaluated determines the
final result of the operation, there is no need to evaluate the other
expression, because it cannot change the final result. Short-circuiting
can
improve performance if the bypassed expression is complex, or if it
involves
procedure calls."

"And" used to evaluate both expressions, "AndAlso" works as mentioned
above.

Ab.
http://joehacker.blogspot.com
there are better things to discuss like :
http://www.msnbc.msn.com/id/7328143/

"Terry Olsen" <to******@hotmail.com> wrote in message
news:u3****************@TK2MSFTNGP14.phx.gbl...

AndAlso...never heard of that. Is it the same as just And?

"Mattias Sjögren" <ma********************@mvps.org> wrote in message
news:uH**************@TK2MSFTNGP10.phx.gbl...

> If fi.Exists AndAlso fi.Length > 0 Then ...

[CT]

> Except that OR probably evaluates both expressions regardless...

Correct, but you also have OrElse for shortcuiting evaluation...

--
Carsten Thomsen
Communities - http://community.integratedsolutions.dk

"Terry Olsen" <to******@hotmail.com> wrote in message
news:e$*************@TK2MSFTNGP09.phx.gbl...

That makes it sound a bit like the OR operator...

Except that OR probably evaluates both expressions regardless...

"Abubakar" <ab*******@gmail.com> wrote in message
news:OT*************@TK2MSFTNGP10.phx.gbl...

AndAlso...never heard of that. Is it the same as just And?

No its works differently (from msdn):

"A logical operation is said to be short-circuiting if the compiled code
can
bypass the evaluation of one expression depending on the result of
another
expression. If the result of the first expression evaluated determines
the
final result of the operation, there is no need to evaluate the other
expression, because it cannot change the final result. Short-circuiting
can
improve performance if the bypassed expression is complex, or if it
involves
procedure calls."

"And" used to evaluate both expressions, "AndAlso" works as mentioned
above.

Ab.
http://joehacker.blogspot.com
there are better things to discuss like :
http://www.msnbc.msn.com/id/7328143/

"Terry Olsen" <to******@hotmail.com> wrote in message
news:u3****************@TK2MSFTNGP14.phx.gbl...

AndAlso...never heard of that. Is it the same as just And?

"Mattias Sjögren" <ma********************@mvps.org> wrote in message
news:uH**************@TK2MSFTNGP10.phx.gbl...

> If fi.Exists AndAlso fi.Length > 0 Then ...