101 Question - Passing a value from one page to another

[jonefer]

I'm using a Public variable that I set on one page so that it will be
available for another page but, I know this isn't the way it should be done.
Being an Access Developer, how would I do the same thing in ASP.NET as:
opening a form and passing a value to OpenArgs so that the next form can
access that value?

Also, for using a selected value from a DataGrid, could someone please show
me the convention (and steps - please?) for opening a detailed page(1 row)
using that value that was selected from the dataGrid on another page? I have
read many examples, but I guess, they are assuming a lot of things that I
should know, because I still can't figure out how to do it - I'm confused
about which event to use - the ChangeSelectedI ndex OR the 'Select' button
link... it couldn't be both those events - or could it?

[albert braun]

here's a thought for your first question:

Store the value in the Session (a server side var)
protected void Page_Load(objec t sender, EventArgs e)
{
string myValue = "some value";
Session.Add("My Value", myValue);
}

You can then retrieve the value on the destination page (using e.g.
(string)Session["MyValue"])

A second way would be to use the application Cache, which asks for
additional information, like how long you want the value to remain
cached, etc.

[uttara]

One other way would be to pass the value as a querystring parameter to
the next page.

albert braun wrote:

here's a thought for your first question:

Store the value in the Session (a server side var)
protected void Page_Load(objec t sender, EventArgs e)
{
string myValue = "some value";
Session.Add("My Value", myValue);
}

You can then retrieve the value on the destination page (using e.g.
(string)Session["MyValue"])

A second way would be to use the application Cache, which asks for
additional information, like how long you want the value to remain
cached, etc.