removing cache for page

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I have more than 100 users working at the same time throughout the country.
There are isolated scenarion wherein when they save the record, it saved the old information of other users.

I want to have a initialization stage on page load wherein all cache on page will be removed so it will start as new and to avoid getting old data saved into the database.

Please help on what is the best practice or approach. Reaelly tired of this problem though its isolated but problem occurs on critical data.

One more is there any draw back or cons if I implement this?

Regards
Dabsukol

Posted 14-Oct-12 23:28pm

dabuskol

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Dylan Morley · Answer 1 · 2012-10-14T23:38:00

Could it be more along these lines....?

User 1 and User 2 both want to work on the same record

* User 1 enters the page and begins changing data.
* Before User 1 has submitted any changes, User 2 also enters the page and starts amending data
* User 1 submits changes, updating the database record.
* User 2 at this point *is unaware that the record has been updated*.
* User 2 submits changes. User 2 will overwrite Users 1's changes with whatever the values were when Users 1 & 2 both started working on the page, and whatever changes User 2 made.

This is a concurrency issue rather than a caching issue, there are lots of different ways of handling this. Have a read through some of these links, or Google

http://www.codeguru.com/csharp/.net/net_data/article.php/c19655/Handling-Concurrency-Issues-in-NET.htm[^]

http://msdn.microsoft.com/en-us/magazine/cc163924.aspx[^]

bhargavpp · Answer 2 · 2012-10-14T23:37:00

Solution 1

Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.Cache.SetNoStore();
Response.Cache.SetExpires(DateTime.MinValue);

put this code in master page.

Posted 14-Oct-12 23:37pm

bhargavpp