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Hi,

I am implementing stock chart in asp.net though AJAX.It gets refreashed every few seconds.The probelm is that chart

is not updated one(that is it is not live).Because it is picking images from temporary internet files.I have tried following but

it is not working.

Response.ExpiresAbsolute=DateTime.Now.AddDays(-1d);
Response.Expires =-1500;
Response.CacheControl = "no-cache";

can anybody help me out as to how to delete temporary internet files in asp.net through code.

Regards,

Manish Bafna.

 

Are you sure it is Temporary Internet Files causing the problem? To test it, turn it off in your broswer to see if that fixes it. Then we will be sure that is the problem.

Your code for disabling cache is correct though.

manishbafna:

can anybody help me out as to how to delete temporary internet files in asp.net through code.

Actually, you don't want to do it throught ASP.Net.  Since it must be done of the users machine, you would have to do it in JavaScript. This leads to new & different problems, as each brower probably has a different way to handle clearing it own cache.

Plus you have a bigger problem.  It's the user's cache.  You don't have the right to decide for them when it's cleared.

Your root problem is almost certainly something else.  Investigate further.

That isn't completely true. The client's cache for a specific page can be controlled with meta tags and specific HTTP Headers in the repsonse.

When you make your ajax call to get the stock data, try appending a random number to the query.

For example,

dim url as string = string.format( http://stockprices.net/currentstockprices.aspx?r={0} , rnd()*10000)