real time status

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

To all,

Not sure on how to approach this but what would be the best practice in
showing status of a query that does an aggregation or count of some sort. if
I were to have a sql statement that does select count(c1) from t1 how would I
be able to show a green, yellow or red light type object that uses my query
to determine a threshold. For example, if my count query went up to 85 then
show red, between 75 to 85 show yellow, between 65 to 75 show green on an
object that would be displayed in a VB.NET web form.

Thanks for any advice,
Michael
 
Hello Michael,

Did you execute the query with a DataCommand or DataAdapter? You may fill
the result into a dataset/datatable. And then put a Label control on the
web form. We can set the Label web control's ForeColor property on based on
result in the dataset, for example:

Label1.ForeColor =System.Drawing.Color.Red

Hope this help,

Sincerely,

Luke Zhang

Microsoft Online Community Support
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Luke,

Thanks for the response. I can certainly can use this code but would I have
to add another control that would be used to post back and get the latest
count from my sql count query? Such as using a button to fill my dataset
again with the latest information from my count query? I would like to see
the label1 control automatically turn colors without a user having to push a
button control to populate the dataset.

Thanks for any help,
Michael
 
Hello,

Did you want the page be refreshed automatically? You may put following
line at the head of ASPX page:

<meta http-equiv="refresh" content="5" >

In this way, the page will be refreshed in every 5 seconds. And then, you
may add the code about fill the dataset and change the label in Page_Load()
method, so that they can be executed when the page is refreshed.

Sincerely,

Luke Zhang

Microsoft Online Community Support
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Thank you Luke! You are a star! Is it possible to make just the control
update every 5 seconds? I'm assuming this is where I would use ajax? Then I
would have the ajax control update five seconds.

Thanks,
Michael
 
Hello Michael,

I am not a professional of ajax, but I think it is positive that there is
an ajax control can do this. If you want to implement this with ajax, you
post this issue in

microsoft.public.dotnet.framework.aspnet

To see if some one there can help on this.

Sincerely,

Luke Zhang

Microsoft Online Community Support
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most efficient resolution. The offering is not appropriate for situations
that require urgent, real-time or phone-based interactions or complex
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==================================================

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