If I see something like:
if(Request["Email"])
{
}
What does this actually mean? Where is the Email collection member actually being set?
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It’s retrieving the variable from get/post parameters.
somepage.aspx?blah=1
> 1
Even more specificially:
Cookies, Form, QueryString or ServerVariables
http://msdn.microsoft.com/en-us/library/system.web.httprequest_members(VS.71).aspx