RE: [flexcoders] NPE on ToolTipManagerImpl/reset()
Hi
I am reopening this thread. I am unable to get around this NPE issue. I
tried to do the following
Set the visibility of ToolTipManager.currentTooltip to false (instead of
destroying it)
Disable the tooltip when I make a service call and enable it on response.
However, I still get the exception stated in my earlier mail below. The
exception occurs either on mouseOut or mouseOver tool tip handlers and the
trace leads all the way to ToolTipManagerImpl.reset() method.
Thanks Regards
Ram
_
rviswanathan wrote:
Thanks Alex. Since the destroyToolTip is public and the doc says not to
call it on the currentToolTip, I'd probably think that it is used when we
explicitly create and destroy tooltips.
About faking the mouse event that you have mentioned, are you meaning that
I need to add my own tooltipmouseouthandler and put in my logic in this
handler?
Thanks
Ram
Alex Harui wrote:
The doc says don't call destroyToolTIp on the current tooltip. I'd
search around to see if anyone else has a way of causing a tooltip to go
away, but I'd probably do it by faking a mouse event instead of calling
an mx_internal method.
From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On
Behalf Of rviswanathan
Sent: Sunday, November 30, 2008 11:52 AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] NPE on ToolTipManagerImpl/reset()
Hi All
I am facing an NPE with tooltips, the problem is outlined below.
Set up: (I use Flex 2.0)
I have a UI where I have a datagrid that gets populated by data coming
from
a remote server call. My module contains a timer that sends out a refresh
request (server call) to paint the datagrid with the latest data. This
timer
fires every 20 seconds. Also, when I point to a datagrid cell, I see the
tooltip that shows the content of this cell.
This is what I have done to disable and enable tooltips during the server
call.
a) Prior to makign the server call, I destroy the current tooltip using
ToolTipManager.destroyToolTip(). I also set the
ToolTipManager.currentToolTip to null. I also make ToolTipManager.enabled
as
false.
b) On getting a response from the server, I set ToolTipManager.enabled as
true.
Now, here's the problem.
I keep my mouse on a cell and a tooltip is displayed. At some time T, the
20
second timer fires that makes a server call. At this very same moment, I
move my mouse out of the cell, so the tooltip's mouseouthandler gets
called.
I get an exception in ToolTipManagerImpl/reset() method. From the trace,
it
shows an NPE. This happens only when I move the mouse out of a tooltip
and a
refresh call to the server goes.
The lines around getSystemManager(previousTarget) is where I think I hit
an
exception, probably because the system manager for the previousTarget is
null and the next line throws an NPE, although I am not a 100% sure.
From ToolTipManagerImpl.reset() method
private function reset():void
{
if (currentToolTip)
{
// Remove it.
var sm:ISystemManager = getSystemManager(previousTarget);
sm.toolTipChildren.removeChild(DisplayObject(currentToolTip));
currentToolTip = null;
}
}
Any pointers to overcome this would really help.
Thanks
Ram
--
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RE: [flexcoders] NPE on ToolTipManagerImpl/reset()
I would call dispatchMouseEvent(new MouseEvent()) on the tooltip
From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf
Of rviswanathan
Sent: Monday, January 19, 2009 4:21 AM
To: flexcoders@yahoogroups.com
Subject: RE: [flexcoders] NPE on ToolTipManagerImpl/reset()
Hi
I am reopening this thread. I am unable to get around this NPE issue. I
tried to do the following
Set the visibility of ToolTipManager.currentTooltip to false (instead of
destroying it)
Disable the tooltip when I make a service call and enable it on response.
However, I still get the exception stated in my earlier mail below. The
exception occurs either on mouseOut or mouseOver tool tip handlers and the
trace leads all the way to ToolTipManagerImpl.reset() method.
Thanks Regards
Ram
__
rviswanathan wrote:
Thanks Alex. Since the destroyToolTip is public and the doc says not to
call it on the currentToolTip, I'd probably think that it is used when we
explicitly create and destroy tooltips.
About faking the mouse event that you have mentioned, are you meaning that
I need to add my own tooltipmouseouthandler and put in my logic in this
handler?
Thanks
Ram
Alex Harui wrote:
The doc says don't call destroyToolTIp on the current tooltip. I'd
search around to see if anyone else has a way of causing a tooltip to go
away, but I'd probably do it by faking a mouse event instead of calling
an mx_internal method.
From: flexcoders@yahoogroups.commailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.commailto:flexcoders%40yahoogroups.com] On
Behalf Of rviswanathan
Sent: Sunday, November 30, 2008 11:52 AM
To: flexcoders@yahoogroups.commailto:flexcoders%40yahoogroups.com
Subject: [flexcoders] NPE on ToolTipManagerImpl/reset()
Hi All
I am facing an NPE with tooltips, the problem is outlined below.
Set up: (I use Flex 2.0)
I have a UI where I have a datagrid that gets populated by data coming
from
a remote server call. My module contains a timer that sends out a refresh
request (server call) to paint the datagrid with the latest data. This
timer
fires every 20 seconds. Also, when I point to a datagrid cell, I see the
tooltip that shows the content of this cell.
This is what I have done to disable and enable tooltips during the server
call.
a) Prior to makign the server call, I destroy the current tooltip using
ToolTipManager.destroyToolTip(). I also set the
ToolTipManager.currentToolTip to null. I also make ToolTipManager.enabled
as
false.
b) On getting a response from the server, I set ToolTipManager.enabled as
true.
Now, here's the problem.
I keep my mouse on a cell and a tooltip is displayed. At some time T, the
20
second timer fires that makes a server call. At this very same moment, I
move my mouse out of the cell, so the tooltip's mouseouthandler gets
called.
I get an exception in ToolTipManagerImpl/reset() method. From the trace,
it
shows an NPE. This happens only when I move the mouse out of a tooltip
and a
refresh call to the server goes.
The lines around getSystemManager(previousTarget) is where I think I hit
an
exception, probably because the system manager for the previousTarget is
null and the next line throws an NPE, although I am not a 100% sure.
From ToolTipManagerImpl.reset() method
private function reset():void
{
if (currentToolTip)
{
// Remove it.
var sm:ISystemManager = getSystemManager(previousTarget);
sm.toolTipChildren.removeChild(DisplayObject(currentToolTip));
currentToolTip = null;
}
}
Any pointers to overcome this would really help.
Thanks
Ram
--
View this message in context:
http://www.nabble.com/NPE-on-ToolTipManagerImpl-reset%28%29-tp20761439p20761439.html
Sent from the FlexCoders mailing list archive at Nabble.com.
--
View this message in context:
http://www.nabble.com/NPE-on-ToolTipManagerImpl-reset%28%29-tp20761439p21541940.html
Sent from the FlexCoders mailing list archive at Nabble.com.
RE: [flexcoders] NPE on ToolTipManagerImpl/reset()
The doc says don't call destroyToolTIp on the current tooltip. I'd search
around to see if anyone else has a way of causing a tooltip to go away, but I'd
probably do it by faking a mouse event instead of calling an mx_internal method.
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of
rviswanathan
Sent: Sunday, November 30, 2008 11:52 AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] NPE on ToolTipManagerImpl/reset()
Hi All
I am facing an NPE with tooltips, the problem is outlined below.
Set up: (I use Flex 2.0)
I have a UI where I have a datagrid that gets populated by data coming from
a remote server call. My module contains a timer that sends out a refresh
request (server call) to paint the datagrid with the latest data. This timer
fires every 20 seconds. Also, when I point to a datagrid cell, I see the
tooltip that shows the content of this cell.
This is what I have done to disable and enable tooltips during the server
call.
a) Prior to makign the server call, I destroy the current tooltip using
ToolTipManager.destroyToolTip(). I also set the
ToolTipManager.currentToolTip to null. I also make ToolTipManager.enabled as
false.
b) On getting a response from the server, I set ToolTipManager.enabled as
true.
Now, here's the problem.
I keep my mouse on a cell and a tooltip is displayed. At some time T, the 20
second timer fires that makes a server call. At this very same moment, I
move my mouse out of the cell, so the tooltip's mouseouthandler gets called.
I get an exception in ToolTipManagerImpl/reset() method. From the trace, it
shows an NPE. This happens only when I move the mouse out of a tooltip and a
refresh call to the server goes.
The lines around getSystemManager(previousTarget) is where I think I hit an
exception, probably because the system manager for the previousTarget is
null and the next line throws an NPE, although I am not a 100% sure.
From ToolTipManagerImpl.reset() method
private function reset():void
{
if (currentToolTip)
{
// Remove it.
var sm:ISystemManager = getSystemManager(previousTarget);
sm.toolTipChildren.removeChild(DisplayObject(currentToolTip));
currentToolTip = null;
}
}
Any pointers to overcome this would really help.
Thanks
Ram
--
View this message in context:
http://www.nabble.com/NPE-on-ToolTipManagerImpl-reset%28%29-tp20761439p20761439.html
Sent from the FlexCoders mailing list archive at Nabble.com.
RE: [flexcoders] NPE on ToolTipManagerImpl/reset()
Thanks Alex. Since the destroyToolTip is public and the doc says not to call
it on the currentToolTip, I'd probably think that it is used when we
explicitly create and destroy tooltips.
About faking the mouse event that you have mentioned, are you meaning that I
need to add my own tooltipmouseouthandler and put in my logic in this
handler?
Thanks
Ram
Alex Harui wrote:
The doc says don't call destroyToolTIp on the current tooltip. I'd search
around to see if anyone else has a way of causing a tooltip to go away,
but I'd probably do it by faking a mouse event instead of calling an
mx_internal method.
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of rviswanathan
Sent: Sunday, November 30, 2008 11:52 AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] NPE on ToolTipManagerImpl/reset()
Hi All
I am facing an NPE with tooltips, the problem is outlined below.
Set up: (I use Flex 2.0)
I have a UI where I have a datagrid that gets populated by data coming
from
a remote server call. My module contains a timer that sends out a refresh
request (server call) to paint the datagrid with the latest data. This
timer
fires every 20 seconds. Also, when I point to a datagrid cell, I see the
tooltip that shows the content of this cell.
This is what I have done to disable and enable tooltips during the server
call.
a) Prior to makign the server call, I destroy the current tooltip using
ToolTipManager.destroyToolTip(). I also set the
ToolTipManager.currentToolTip to null. I also make ToolTipManager.enabled
as
false.
b) On getting a response from the server, I set ToolTipManager.enabled as
true.
Now, here's the problem.
I keep my mouse on a cell and a tooltip is displayed. At some time T, the
20
second timer fires that makes a server call. At this very same moment, I
move my mouse out of the cell, so the tooltip's mouseouthandler gets
called.
I get an exception in ToolTipManagerImpl/reset() method. From the trace,
it
shows an NPE. This happens only when I move the mouse out of a tooltip and
a
refresh call to the server goes.
The lines around getSystemManager(previousTarget) is where I think I hit
an
exception, probably because the system manager for the previousTarget is
null and the next line throws an NPE, although I am not a 100% sure.
From ToolTipManagerImpl.reset() method
private function reset():void
{
if (currentToolTip)
{
// Remove it.
var sm:ISystemManager = getSystemManager(previousTarget);
sm.toolTipChildren.removeChild(DisplayObject(currentToolTip));
currentToolTip = null;
}
}
Any pointers to overcome this would really help.
Thanks
Ram
--
View this message in context:
http://www.nabble.com/NPE-on-ToolTipManagerImpl-reset%28%29-tp20761439p20761439.html
Sent from the FlexCoders mailing list archive at Nabble.com.
--
View this message in context:
http://www.nabble.com/NPE-on-ToolTipManagerImpl-reset%28%29-tp20761439p20763093.html
Sent from the FlexCoders mailing list archive at Nabble.com.
