textarea help, please

[turbov21]

Here's what I'm using:


[start]
cls
textarea #text, ""
print ""
link #tb, "Sumbit", [show text]
wait

[show text]
cls
text$ = #text contents$()
html "<p>" + text$ + "</p>"
link #st, "Once more", [start]
wait


Here's what I'm getting:

[glow=red,2,300]Runtime Error: text$ = #text contents$()
Invalid handle: #text[/glow]

It fails when my handle is #text, #txa, and just #tx. I've looked at the blogCSS code, and thought I was using it in the same manner.

[Janet]

Move your cls statement to after the

text$ = #text contents$()

instead of before.

You are effectively erasing the textarea and then trying to retrieve the contents of it. It's no longer there.

[Jerry Muelver]

Try this:

[start]
cls
textarea #text, ""
print ""
link #tb, "Sumbit", [show text]
wait

[show text]
'cls
text$ = #text contents$()
html "<p>" + text$ + "</p>"
link #st, "Once more", [start]
wait

For some reason, RB doesn't like the CLS in the branch.

[carlgundel]

That's because when you clear the screen you are getting rid of the widget. It no longer exists.

-Carl

[Jerry Muelver]

Hugely, enormously valuable lesson learned! I was working out the CLS problem while Janet was answering, and never saw her explanation until I came back just now. This is VERY interesting, and will solve a number of problems for me even before they have a chance to occur!

[Janet]

In turbov21's code, I'm curious about

[show text]

Run BASIC seems to accept the branch label just fine. LB4.x would balk for sure. I checked the RB help file, and sure enough, spaces are allowed and documented. Handy to know.

[turbov21]

janet said:

You are effectively erasing the textarea and then trying to retrieve the contents of it. It's no longer there.

Thanks!