Closing a file and the form

[Kelly]

Hey all -

I need a little more help. I don't quite know why my text file or form isn't
closing.

Short version - this program takes data entered into a textbox, user clicks
Save button, Save As dialog box pops open, user selects file to save to,
data *should* save to the file, file close, form close.

The way I have it written so far, the data *does* save to the file, however,
I have to first close the file and then re-open it to see the changes. I've
been playing with the code a little to get the form and file to close after
the user selects the file from the Save As dialog box and clicks OK.

I got help the other day from a few of you and was hoping for another kick
in the right direction...I'm not too familiar with the .NET syntax yet.

Here's the snippet of code I'm playing with...
Select Case sFileExtension. ToUpper
Case ".TXT"

Shell("notepad. exe " & sFileName, AppWinStyle.Max imizedFocus)

FileOpen(f, sFileName, OpenMode.Append )

PrintLine(f, sInfo)

'FileClose(f) ' doesn't work

'Form1.ActiveFo rm.Hide() ' doesn't work

[Kelly]

I should also mention that I tried using StreamWriter for this as well with
no luck.

-Kelly

"Kelly" <ke**********@a merock.com> wrote in message
news:u7******** ******@TK2MSFTN GP11.phx.gbl...

Hey all -

I need a little more help. I don't quite know why my text file or form isn't closing.

Short version - this program takes data entered into a textbox, user clicks Save button, Save As dialog box pops open, user selects file to save to,
data *should* save to the file, file close, form close.

The way I have it written so far, the data *does* save to the file, however, I have to first close the file and then re-open it to see the changes. I've been playing with the code a little to get the form and file to close after the user selects the file from the Save As dialog box and clicks OK.

I got help the other day from a few of you and was hoping for another kick
in the right direction...I'm not too familiar with the .NET syntax yet.

Here's the snippet of code I'm playing with...
Select Case sFileExtension. ToUpper
Case ".TXT"

Shell("notepad. exe " & sFileName, AppWinStyle.Max imizedFocus)

FileOpen(f, sFileName, OpenMode.Append )

PrintLine(f, sInfo)

'FileClose(f) ' doesn't work

'Form1.ActiveFo rm.Hide() ' doesn't work

[Herfried K. Wagner [MVP]]

* "Kelly" <ke**********@a merock.com> scripsit:

I need a little more help. I don't quite know why my text file or form isn't
closing.

Short version - this program takes data entered into a textbox, user clicks
Save button, Save As dialog box pops open, user selects file to save to,
data *should* save to the file, file close, form close.

The way I have it written so far, the data *does* save to the file, however,
I have to first close the file and then re-open it to see the changes.

That's because file access is buffered. So, there is no guarantee that
the data will be written to the file immediately. There is a guarantee
that it will be written, and a guarantee that it will be written in the
right order if there are successive calls to methods that write data to
the file.

If you are using 'System.IO.Stre amWriter', you can call its 'Flush'
method to make the buffered data persistent.

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>

[Cor Ligthert]

Kelly,

Have a look at the streamreader/writer class and tell us what that shell
notepad does in this code.

http://msdn.microsoft.com/library/de...ClassTopic.asp

http://msdn.microsoft.com/library/de...classtopic.asp

I hope this helps anyway?

Cor

[Kelly]

Ok, that part makes sense. The way it is now though, the file and form stay
open until I close the file manually. I was hoping to be able to close the
file after the data is sent to be written. How would I go about doing that?

Thanks again!

-Kelly

"Herfried K. Wagner [MVP]" <hi************ ***@gmx.at> wrote in message
news:uG******** ******@TK2MSFTN GP12.phx.gbl...

* "Kelly" <ke**********@a merock.com> scripsit:

I need a little more help. I don't quite know why my text file or form isn't closing.

Short version - this program takes data entered into a textbox, user clicks Save button, Save As dialog box pops open, user selects file to save to,
data *should* save to the file, file close, form close.

The way I have it written so far, the data *does* save to the file, however, I have to first close the file and then re-open it to see the changes.

That's because file access is buffered. So, there is no guarantee that
the data will be written to the file immediately. There is a guarantee
that it will be written, and a guarantee that it will be written in the
right order if there are successive calls to methods that write data to
the file.

If you are using 'System.IO.Stre amWriter', you can call its 'Flush'
method to make the buffered data persistent.

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>

[Kelly]

Thanks! I'm trying this out now...

I did put the StreamWriter code back into my program to try it out (was in
one of the examples in the first link you sent me) and it didn't work.
Instead of appending the data, it overwrote the data. The text file and form
also did not close. Here's a snippet of the code:

If myFileDlog.Show Dialog() = DialogResult.OK Then

Dim sFileName As String = myFileDlog.File Name

Dim sw As IO.StreamWriter = New IO.StreamWriter (sFileName)

Dim sInfo As String = txtLName.Text & ", " & txtFName.Text

Dim sFileExtension As String = (System.IO.Path .GetExtension(s FileName))

Select Case sFileExtension. ToUpper

Case ".TXT"

Shell("notepad. exe " & sFileName, AppWinStyle.Max imizedFocus)

sw.Write(sInfo) ' I also tried
sw.WriteLine(sI nfo) and got same results....

sw.Close()

........
"Cor Ligthert" <no**********@p lanet.nl> wrote in message
news:Oz******** ********@TK2MSF TNGP09.phx.gbl. ..

Kelly,

Have a look at the streamreader/writer class and tell us what that shell
notepad does in this code.

http://msdn.microsoft.com/library/de...ClassTopic.asp
http://msdn.microsoft.com/library/de...classtopic.asp
I hope this helps anyway?

Cor

[Herfried K. Wagner [MVP]]

* "Kelly" <ke**********@a merock.com> scripsit:

Ok, that part makes sense. The way it is now though, the file and form stay
open until I close the file manually. I was hoping to be able to close the
file after the data is sent to be written. How would I go about doing that?

I am not really sure if I understand what's not working for you. Is the
data written to the file when calling 'FileClose' on its file number?

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>

[Kelly]

The data is being written to the file ok. But, when I choose the file to
save to from the dialog box, the file stays open as does the form. I was
hoping to get the file (and form) to close once the user had chosen the file
they wanted the data saved to. (I hope that made sense).

Like I said, I can't get the file or form to close in the program. The file
stays open, and I manually close it (the form closes once I close the file
manually). I open the file up, and my data is there.

-Kelly
"Herfried K. Wagner [MVP]" <hi************ ***@gmx.at> wrote in message
news:uq******** ******@TK2MSFTN GP09.phx.gbl...

* "Kelly" <ke**********@a merock.com> scripsit:

Ok, that part makes sense. The way it is now though, the file and form stay open until I close the file manually. I was hoping to be able to close the file after the data is sent to be written. How would I go about doing

that?
I am not really sure if I understand what's not working for you. Is the
data written to the file when calling 'FileClose' on its file number?

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>

[One Handed Man \( OHM - Terry Burns \)]

What do you mean 'Manually Close it' ?

--

OHM ( Terry Burns )
. . . One-Handed-Man . . .
If U Need My Email ,Ask Me

Time flies when you don't know what you're doing

"Kelly" <ke**********@a merock.com> wrote in message
news:O9******** ******@TK2MSFTN GP12.phx.gbl...

The data is being written to the file ok. But, when I choose the file to
save to from the dialog box, the file stays open as does the form. I was
hoping to get the file (and form) to close once the user had chosen the file they wanted the data saved to. (I hope that made sense).

Like I said, I can't get the file or form to close in the program. The file stays open, and I manually close it (the form closes once I close the file
manually). I open the file up, and my data is there.

-Kelly
"Herfried K. Wagner [MVP]" <hi************ ***@gmx.at> wrote in message
news:uq******** ******@TK2MSFTN GP09.phx.gbl...

* "Kelly" <ke**********@a merock.com> scripsit:

Ok, that part makes sense. The way it is now though, the file and form stay open until I close the file manually. I was hoping to be able to close the file after the data is sent to be written. How would I go about doing

that?

I am not really sure if I understand what's not working for you. Is the
data written to the file when calling 'FileClose' on its file number?

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>

[Kelly]

I have to close the file myself. The program seems to be running, because
the form stays open, but I have to click the X at the top right of the file
to close it because the program isn't closing it. Once I've closed it like
that, the form closes. ??

-Kelly

"One Handed Man ( OHM - Terry Burns )" <news.microsoft .com> wrote in message
news:uw******** *****@TK2MSFTNG P10.phx.gbl...

What do you mean 'Manually Close it' ?

--

OHM ( Terry Burns )
. . . One-Handed-Man . . .
If U Need My Email ,Ask Me

Time flies when you don't know what you're doing

"Kelly" <ke**********@a merock.com> wrote in message
news:O9******** ******@TK2MSFTN GP12.phx.gbl...

The data is being written to the file ok. But, when I choose the file to
save to from the dialog box, the file stays open as does the form. I was
hoping to get the file (and form) to close once the user had chosen the

file

they wanted the data saved to. (I hope that made sense).

Like I said, I can't get the file or form to close in the program. The

file

stays open, and I manually close it (the form closes once I close the file manually). I open the file up, and my data is there.

-Kelly
"Herfried K. Wagner [MVP]" <hi************ ***@gmx.at> wrote in message
news:uq******** ******@TK2MSFTN GP09.phx.gbl...

* "Kelly" <ke**********@a merock.com> scripsit:
> Ok, that part makes sense. The way it is now though, the file and form

stay

> open until I close the file manually. I was hoping to be able to

close the

> file after the data is sent to be written. How would I go about

doing that?

I am not really sure if I understand what's not working for you. Is

the data written to the file when calling 'FileClose' on its file number?

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>