[flexcoders] best general purpose way to keep textarea scrolled to bottom
I wish TextArea had a property that would set it to scroll to the bottom on adding text. In the absence of such, I'm struggling to make it do that. I have a log function that looks like this:
private function log(s:Object):void { debug.text += \n +
s.toString(); debug.verticalScrollPosition = debug.maxVerticalScrollPosition;
}Unfortunately, it seems that the max position isn't updated yet at this point. I've tried hooking into change/dataChange and other events without luck. It's always scrolled ALMOST to the bottom.
What's the best way to solve this?-- Jason
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Re: [flexcoders] best general purpose way to keep textarea scrolled to bottom
Use a callLater. I've used a doLater in the
past and she worked pretty well. So like:
function log ( s )
{
debug.text += s +
"\n";
callLater ( scrollIt
);
}
function scrollIt()
{
debug.verticalScrollPosition =
debug.maxVerticalScrollPosition;
}
If that doesn't work, make scrollIt call itself
recursively 1 time, via a counter. If that doesn't work, make it 2,
etc. I promise it won't be over 10!
- Original Message -
From: Pan
Troglodytes
To: flexcoders
Sent: Thursday, July 13, 2006 12:23 PM
Subject: [flexcoders] best general purpose way to keep textarea
scrolled to bottom
I wish TextArea had a property that would set it to scroll to the
bottom on adding text. In the absence of such, I'm struggling to make it
do that. I have a log function that looks like this: private function
log(s:Object):void { debug.text += "\n"
+ s.toString();
debug.verticalScrollPosition = debug.maxVerticalScrollPosition; }Unfortunately,
it seems that the max position isn't updated yet at this point. I've tried
hooking into change/dataChange and other events without luck. It's always
scrolled ALMOST to the bottom. What's the best way to solve
this?-- Jason
__._,_.___
--
Flexcoders Mailing List
FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com
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Visit your group "flexcoders" on the web.
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Re: [flexcoders] best general purpose way to keep textarea scrolled to bottom
I would have used callLater(), having only been hampered by not having ever heard of it.Thanks!On 7/13/06, JesterXL
[EMAIL PROTECTED] wrote:
Use a callLater. I've used a doLater in the
past and she worked pretty well. So like:
function log ( s )
{
debug.text += s +
\n;
callLater ( scrollIt
);
}
function scrollIt()
{
debug.verticalScrollPosition =
debug.maxVerticalScrollPosition;
}
If that doesn't work, make scrollIt call itself
recursively 1 time, via a counter. If that doesn't work, make it 2,
etc. I promise it won't be over 10!
- Original Message -
From:
Pan
Troglodytes
To: flexcoders
Sent: Thursday, July 13, 2006 12:23 PM
Subject: [flexcoders] best general purpose way to keep textarea
scrolled to bottom
I wish TextArea had a property that would set it to scroll to the
bottom on adding text. In the absence of such, I'm struggling to make it
do that. I have a log function that looks like this: private function
log(s:Object):void { debug.text += \n
+ s.toString();
debug.verticalScrollPosition = debug.maxVerticalScrollPosition; }
Unfortunately,
it seems that the max position isn't updated yet at this point. I've tried
hooking into change/dataChange and other events without luck. It's always
scrolled ALMOST to the bottom. What's the best way to solve
this?-- Jason
-- Jason
__._,_.___
--
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Software design and development
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Re: [flexcoders] best general purpose way to keep textarea scrolled to bottom
I've done this in the past through code like the following:
textArea.addEventListener( FlexEvent.VALUE_COMMIT, autoScrollToBottom );
private function autoScrollToBottom( event:FlexEvent ):void
{
// Auto-scroll to the bottom anytime the text changes
event.target.validateNow();
event.target.verticalScrollPosition =
event.target.maxVerticalScrollPosition;
}
Essentially, with the above code you never have to explicitly tell the
text area to scroll to the bottom - it will automatically do that
anything the text property changes programmatically. So, anytime you
assign the text to be something else, your scrollbar will automatically
adjust for you.
This is code I've used in the past with beta 3, and I haven't tried it
with the released version, so it's not guaranteed to work. :-)
-d
Pan Troglodytes wrote:
I wish TextArea had a property that would set it to scroll to the
bottom on adding text. In the absence of such, I'm struggling to make
it do that. I have a log function that looks like this:
private function
log(s:Object):void {
debug.text +=
"\n" + s.toString();
debug.verticalScrollPosition = debug.maxVerticalScrollPosition;
}
Unfortunately, it seems that the max position isn't updated yet at this
point. I've tried hooking into change/dataChange and other events
without luck. It's always scrolled ALMOST to the bottom.
What's the best way to solve this?
--
Jason
__._,_.___
--
Flexcoders Mailing List
FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com
YAHOO! GROUPS LINKS
Visit your group "flexcoders" on the web.
To unsubscribe from this group, send an email to:[EMAIL PROTECTED]
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Re: [flexcoders] best general purpose way to keep textarea scrolled to bottom
Maybe this old post will help See: http://www.mail-archive.com/flexcoders@yahoogroups.com/msg19784.html Hope it helps. -Dan __._,_.___ -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com SPONSORED LINKS Web site design development Computer software development Software design and development Macromedia flex Software development best practice YAHOO! GROUPS LINKS Visit your group "flexcoders" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. __,_._,___
Re: [flexcoders] best general purpose way to keep textarea scrolled to bottom
Very nice! Works fine for me in release.On 7/13/06, Darron J. Schall [EMAIL PROTECTED] wrote:
I've done this in the past through code like the following:
textArea.addEventListener( FlexEvent.VALUE_COMMIT, autoScrollToBottom );
private function autoScrollToBottom( event:FlexEvent ):void
{
// Auto-scroll to the bottom anytime the text changes
event.target.validateNow();
event.target.verticalScrollPosition =
event.target.maxVerticalScrollPosition;
}
Essentially, with the above code you never have to explicitly tell the
text area to scroll to the bottom - it will automatically do that
anything the text property changes programmatically. So, anytime you
assign the text to be something else, your scrollbar will automatically
adjust for you.
This is code I've used in the past with beta 3, and I haven't tried it
with the released version, so it's not guaranteed to work. :-)
-d
Pan Troglodytes wrote:
I wish TextArea had a property that would set it to scroll to the
bottom on adding text. In the absence of such, I'm struggling to make
it do that. I have a log function that looks like this:
private function
log(s:Object):void {
debug.text +=
\n + s.toString();
debug.verticalScrollPosition = debug.maxVerticalScrollPosition;
}
Unfortunately, it seems that the max position isn't updated yet at this
point. I've tried hooking into change/dataChange and other events
without luck. It's always scrolled ALMOST to the bottom.
What's the best way to solve this?
--
Jason
-- Jason
__._,_.___
--
Flexcoders Mailing List
FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com
SPONSORED LINKS
Web site design development
Computer software development
Software design and development
Macromedia flex
Software development best practice
YAHOO! GROUPS LINKS
Visit your group "flexcoders" on the web.
To unsubscribe from this group, send an email to:[EMAIL PROTECTED]
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
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