[REBOL] Re: Rebol view fields are caching entries - HELP
From: lmecir:mbox:vol:cz at: 12-Nov-2006 23:50
Yvan napsal(a):
> Hello together,
>
> I think I'm turning in circles.
>
> I want to open a layout with a field where I can enter a filename and a
> button 'Edit' to open the file with the filename I entered and allowing m
> e
> to edit it.
>
> The editing stuff works more or less, but I have a very strange problem.
>
> To explain it I created to very crude functions with just enough code to
> show you the problem.
>
> The functions:
>
> select-file:
>
> a layout with a field where I can enter the filename. A default value of
> none is used.
>
> A button 'EDIT' which by pressing it would call a function 'edit-file' wi
> th
> the filename I entered or doing nothing if the default value of none is
> still in it.
>
> A button 'CANCEL' which just quits the function
>
> edit-file:
>
> Would do the editing stuff, but as this is not the problem I just entered
>
> dummy code,
>
> Okay, what is the problem.
>
> -Start "select-file" for the first time
>
> -> a view opens with a filename in the field of "none" as expected.
>
> -Now enter dada as filename and press EDIT
>
> -> works as expected
>
> -Now, start "select-file" a second time
>
> -> a view opens with a filename in the field of 'dada' instead of 'none'
> ,and this is very disturbing, unexpected stuff.
>
> I tried many things, clearing strings, enabling trace, jumping out of the
>
> window, but I am not able to find the reason of this problem.
>
> what I want is that every time I start this function the default value of
>
> 'none appears in the field.
>
> Who can help me please.
>
> Cheers Yvan
>
> PS:
>
> The code:
>
> file 'createfile.r'
>
> REBOL [title: "Creates File"]
>
> select-file: func
> ["enter name manually and then edit"]
> [
> view layout
>
> [
> text "filename"
> filename: field "none"
> button "Edit"
>
> [
> if/else NOT (filename/text = "none")
> [
> unview
> edit-file filename/text
> ]
> [
> view layout
>
> [
> text "No filename selected"
> button "OK" [unview]
> ]
> ]
> ]
> button "CANCEL" [unview]
> ]
> ]
>
> edit-file: func
> [
> filen
> ]
> [
> print "Will do some editing stuff"
> ]
>
>
> Mit freundlichen Gr=FCssen
> Yvan
>
I suppose this may be what you want:
REBOL [title: "Creates File"]
select-file: func [
"enter name manually and then edit"
/local no-filename
] [
no-filename: copy "none"
view layout blk: [
text "filename"
filename: field no-filename
button "Edit" [
either filename/text <> "none" [
unview
edit-file filename/text
] [
view layout [
text "No filename selected"
button "OK" [unview]
]
]
]
button "CANCEL" [unview]
]
]
edit-file: func [
filen
] [
print "Will do some editing stuff"
]
