WebForms IsPostBack - Lies!
My first experience with ASP.NET was in 2006 - WebForms 2.0 was new. Obviously it's no longer new, revolutionary or anything else. My experience was entirely on desktop and command-line applications when I picked up my first book on developing applications.
I had no idea what the difference between GET and POST were. Hence, I took the IsPostBack
property of the Page
class at face value. The usage therefore pretty much went as follows:
public class MyWebForm : WebForm
{
Page_Load(object sender, EventArgs e)
{
if (IsPostBack)
{
// Handle the processing for when the form is returned
}
else
{
// Initial work/processing to present the page/form to the user
}
}
}
It turns out that IsPostBack does not actually imply "form submitted using a POST method" (logical assumption in my humble opinion). Granted, a little RTFM could have gone a long way, but I was still learning the ropes.
Noting the formal documentation (at least as today) [1] :
Gets a value that indicates whether the page is being rendered for the first time or is being loaded in response to a postback.
Seems very helpful.
If you actually want to confirm GET vs POST, use the following:
if (Request.HttpMethod == "POST")
{
// Etc.
}