[Gambas-user] load contents of a TreeView from a file

[Joshua Higgins]

Thank you very much for the reply.

I have got as far as the FOR EACH section, and I have done
sItem = Split(sLine, " ") to get another array called sItem with the 3 bits
of information I need to add to the TreeView. The problem I'm having is
identifying each part of the array.  If I shell "echo " & sItem[0] or [1] or
[2] I get the right bit of information out on the terminal, but I also get
an Out of Bounds error.

On Sun, Aug 17, 2008 at 7:30 AM, Doriano Blengino <
doriano.blengino at ...1909...> wrote:

> joshiggins ha scritto:
> > Hello.
> >
> > I'm just starting out with gambas and need some help. I have a file
> > formatted as follows:
> >
> > itemkey [SPACE] itemname [SPACE] path/to/icon
> > itemkey1 [SPACE] itemname [SPACE] path/to/icon    etc...etc...
> >
> > I need to load this data from a file into a treeview. I figure that I
> need
> > to load the file and for each line split it up into the 3 parts and add
> an
> > item to the treeview, then do the same for the next line, and the next
> etc.
> > I'm completely lost on where to start. The LINE INPUT page on the wiki
> only
> > inputs the first line. Any suggestions?
> >
>
> An example from the online help:
>
>    hFile = OPEN "/etc/hosts" FOR INPUT
>
>    WHILE NOT Eof(hFile)
>      LINE INPUT #hFile, sOneLine
>      PRINT sOneLine
>    WEND
>
>    CLOSE #hFile
>
> You open the file, then input one line at a time. This is the classic way.
> Don't forget to close the file (see later).
>
> Another method is to load the entire file into a string, with:
>
>    sString = file.load("/etc/hosts")
>
> then you must split this long string into a string[] using something like:
>
>    sLines = Split(sString, "\n")
>
> At this point you have a string[] array you can traverse with "for each":
>
>    for each sLine in sLines
>       ...
>       ...
>    next
>
> Every single line, obtained by either the two methods, must be again
> splitted in tokes and loaded in the TreeView.
>
> About execute command then exit, I had no problems in doing this:
>
>    shell "cd /usr/local/bin; xterm &"
>
> This launches the terminal emulator "xterm" in background. If you exit
> the application, the xterm stays there.
> It is true that open files, environment, signals and other thing may be
> inherited by the child process, but I think this can be solved by the
> ampersand in the end of the SHELL command.
>
> If you need more help, ask again.
>
> Salutations,
> Doriano Blengino.
>
>
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-- 
joshua higgins
>>>>>>------