Blank page in a modal dialog window

#1

We have a strange problem with blank pages appearing...sometimes. If we have
cacheing enabled on the client and the client's connection is slow, when we
open an ASP.Net page in a modal dialog, the page sometimes appears blank. If
the dialog is resized, the page is displayed, so the page *has* actually
loaded, but has not painted.

If we disable client cacheing, it displays every time, but at an obvious
performance hit.

If it's a faster network and client cacheing is enabled, it displays every
time.

I've tried to resize the window onload with some JS to force a repaint, but
since the page is coming from the cache, the page_load event is not triggered
and the function doesn't get connected to the event.

Is there:
a) any event to trap when the page has come from the cache so I can
programatically resize/repaint the window?
b) any setting other than nocache that will force the page to paint?

Thanks,
R.

#2

Hi ,
I am not expert at caching ... but I know a solution which will force the
page to repainted on the client side. This may solve the problem.
Try using the following tag in ur aspx page.
<%@ OutputCache Location="None"%>
This will disable to client side caching and force the page to be
reloaded.This has solved my similar problem. You can try with the several
other alternatives available with the @OutputCache directive as it also
allows you to cache some specific part of the page.

Regards
Parag Kulkarni
MTS, Persistent Systems Private Limited

"Reece Williams" <Reece Williams (AT) discussions (DOT) microsoft.com> wrote

Quote:

We have a strange problem with blank pages appearing...sometimes. If we
have
cacheing enabled on the client and the client's connection is slow, when
we
open an ASP.Net page in a modal dialog, the page sometimes appears blank.
If
the dialog is resized, the page is displayed, so the page *has* actually
loaded, but has not painted.

If we disable client cacheing, it displays every time, but at an obvious
performance hit.

If it's a faster network and client cacheing is enabled, it displays every
time.

I've tried to resize the window onload with some JS to force a repaint,
but
since the page is coming from the cache, the page_load event is not
triggered
and the function doesn't get connected to the event.

Is there:
a) any event to trap when the page has come from the cache so I can
programatically resize/repaint the window?
b) any setting other than nocache that will force the page to paint?

Thanks,
R.

#3

Thanks for your reply.

I did try the nocache thang (and it worked), but that obviously affected
download times - esp. over a slow link, which is only where we had the
problem.

It's probably a real kludge, but we ended up adding a simple JS function to
<body onload> to resize the width of the dialog by +1 px followed by -1 px.
The user doesn't see the size change and it's enough to get IE to repaint the
window.

This probably wouldn't work if there's no need to repaint - ie we have a
100% width box and resizing the width caused a repaint. Resizing the height
didn't work because it didn't change the layout!

Thanks,
R.

"Parag" wrote:

Quote:

Hi ,
I am not expert at caching ... but I know a solution which will force the
page to repainted on the client side. This may solve the problem.
Try using the following tag in ur aspx page.
%@ OutputCache Location="None"%
This will disable to client side caching and force the page to be
reloaded.This has solved my similar problem. You can try with the several
other alternatives available with the @OutputCache directive as it also
allows you to cache some specific part of the page.

Regards
Parag Kulkarni
MTS, Persistent Systems Private Limited

"Reece Williams" <Reece Williams (AT) discussions (DOT) microsoft.com> wrote in message
news:5C07216B-9805-45CC-97E7-A4BAB09C848B (AT) microsoft (DOT) com...
We have a strange problem with blank pages appearing...sometimes. If we
have
cacheing enabled on the client and the client's connection is slow, when
we
open an ASP.Net page in a modal dialog, the page sometimes appears blank.
If
the dialog is resized, the page is displayed, so the page *has* actually
loaded, but has not painted.

If we disable client cacheing, it displays every time, but at an obvious
performance hit.

If it's a faster network and client cacheing is enabled, it displays every
time.

I've tried to resize the window onload with some JS to force a repaint,
but
since the page is coming from the cache, the page_load event is not
triggered
and the function doesn't get connected to the event.

Is there:
a) any event to trap when the page has come from the cache so I can
programatically resize/repaint the window?
b) any setting other than nocache that will force the page to paint?

Thanks,
R.

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Blank page in a modal dialog window

ASP.net Caching microsoft.public.dotnet.framework.aspnet.caching

Blank page in a modal dialog window - 06-09-2005 , 08:31 PM

Re: Blank page in a modal dialog window - 06-21-2005 , 08:09 AM

Re: Blank page in a modal dialog window - 06-21-2005 , 06:09 PM