Display Live Data in Web Form

sanjaykabra82 · July 1st, 2004, 03:37 AM

Hi All,

I am designing a Web Form in which I have put the Crystal Report Viewer and the Report displays the graph, which has to be updated or refreshed every 10 seconds, so that the graph should look moving. Event though I am able to display the Report with Graph, I am not able to refresh it automatically.

Can anybody help me for that?

Thanks in Advance!

Regards,
SANJAY KABRA

bmains · July 1st, 2004, 07:04 AM

Hello,

I don't know, being in the web environment, that you can do that. If you need to do that, you could try doing it in VB.NET and hosting it in ASP.NET as an <object>.

Brian

Hal Levy · July 1st, 2004, 09:27 AM

you would have to create/use a java or other control in the browser that maintained connectivity with the server for data updates. This can't be done with standard asp controls that come out of the box.

Hal Levy
Web Developer, PDI Inc.

NOT a Wiley/Wrox Employee

mateenmohd · July 2nd, 2004, 11:28 PM

try to use following code

<%
  Response.ExpiresAbsolute = #1/1/1980#
  Response.AddHeader "pragma", "no-cache"
  Response.AddHeader "cache-control", "private, no-cache, must-revalidate"
%>

OR

<meta http-equiv="refresh" content="1">
within ur <head>.
or use
window.location.reload();
within ur JavaScript codes.
HTH.

melvik · July 3rd, 2004, 03:51 AM

Cross post http://p2p.wrox.com/topic.asp?TOPIC_ID=15520

Always:),
Hovik Melkomian.

sanjaykabra82 · July 5th, 2004, 01:54 AM

Hi,

Thanks. The code
<meta http-equiv="refresh" content="1">
is working fine but it refreshes the whole page. I would like to
refresh the crystal reports viewer only and not the whole page. Can u tell me how to do that?

Regards,
SANJAY KABRA

[quote]Originally posted by mateenmohd
try to use following code

<%
Response.ExpiresAbsolute = #1/1/1980#
Response.AddHeader "pragma", "no-cache"
Response.AddHeader "cache-control", "private, no-cache, must-revalidate"
%>

OR

within ur <head>.
or use
window.location.reload();
within ur JavaScript codes.
HTH.

sanjaykabra82 · July 9th, 2004, 03:53 AM

Hi All,

I am designing a Web Form in which I have put the Crystal Report Viewer and the Report displays the graph, which has to be updated or refreshed every 10 seconds, so that the graph should look moving. Event though I am able to display the Report with Graph, I am not able to refresh it automatically.

As mateenmohd suggested
I tried
<meta http-equiv="refresh" content="1">
is working fine but it refreshes the whole page. I would like to
refresh the crystal reports viewer (indirectly the part of a web form) only and not the whole page.

Can nebody tell me how to do that?

Thanks in Advance!

Regards,
SANJAY KABRA

Imar · July 9th, 2004, 03:58 AM

You could embed your page with the report in an iframe and then embed that iframe in your "outer" page.

That way, you can refresh the inner page with just the report, while the main page remains.

Cheers,

Imar
---------------------------------------
Imar Spaanjaars
Everyone is unique, except for me.
While typing this post, I was listening to: Choose by Stone Sour (Track 5 from the album: Stone Sour) What's This?

sanjaykabra82 · July 15th, 2004, 04:22 AM

Hi guys,

I used the IFrames but my client says that there is lot of flickering when the page containing Crystal Reports embedded in the IFrame refreshes every second.
Can ne body tell me how I can avoid this "Flicker " to occur.
I saw one Java Applet which scrolls the news messages in the Web Page which goes very smoothly without ne flickering.Can the similar thing happen in ASP.Net

Is there ne other way than crystal reports by which I can perform the same task of displaying the realtime data along with chart on the Web Form

Thanks in advance

Regards,
SANJAY KABRA

Sanjay Kabra

melvik · July 15th, 2004, 09:19 AM

Sorry but I didnt get u clearly. u mean ur report is not clear?! & not sidplaying properly?! or u wanna scroll the ur paeg in IFrame?!

Always:),
Hovik Melkomian.