Per the code below, I load an array from a session variable.  When the
user clicks Save, I attempt to build a new array that looks like the
original, except with the updates from the screen.  Then I compare the
two, to see if any changes need to be written out to the database.

I've got a web server running on a separate machine from a database server.
Update timestamps for database entities are based on the database server's
time. I want to be able to create a page with the Last-Modified http header
set to the saved value.

Hello, all.
I'd like to ask a question about the structure of a .NET Web
application and how ASP.NET 2.0 implements SQL cache invalidation.
MS provides an ObjectDataSource class to leverage existing external

testing nntp

I want to use .net caching with session variable instead of querystring. I
mean, I use this directive:
<% @OutputCache Duration="300" VaryByParam="id" %>
which is working fine when the id in the query string change. But I also

I experiencing problems when i create cache dependencies for objects I wish
to add to my web cache.  Essentially I have a network directory with a number
of subdirectories. My application creates objects which represents the data
held in these subdirectories.  I am creating a ...

But I'm a bit confused. I've read all about the Caching in patterns and
practices, but somehow I dont quite get it.
I need a way to Cache a DataTable, the DataTable is located in my
businesslayer - and I want to share that DataTable between multiple request

When running an Asp.Net 2.0 web application
any items that I add to the cache are being removed almost instantly
with a reason of underused. I know this as I have hooked up a delegate
that is invoked when the cached item is removed.

With .NET 2.0, the HttpRuntime.Cache is expiring objects within seconds
or milliseconds of the objects being added to the cache with a reason
of "Underused". This occurs regardless of whether sliding or absolute
expiration is used. The system is not resource constrained (in

I've got a custom built HttpHandler that I use to display the image
blobs from the db. I am getting the image straight from the db, resize
it if neccessary, cache it and display on the web page. The problem I
am having is that, eventhough the images are being cached in my temp

I am using cookie to store unique encrypted token, i want to use the cookie
expire time 8 hours.
I doing like below to expire:
Cookie.Expres = DateTime.Now.AddHours(8)

Can someone please describe why impersonation requires the impersonator to
be local admin?