Question

Why can’t the HTML reset button reset an ASP.NET form directly? Why do we need to write extra code to achieve the Reset function for an ASP.NET form?

I am looking for an explanation behind this.

Answer 1

asp.net maintains its values in something called the ‘ViewState’.

This remembers values you have assigned to an input, so if you want to reset inputs, you have to clear them yourself.

You should read Understanding asp.net ViewState

view state, in a nutshell, is the technique used by an ASP.NET Web
page to persist changes to the state of a Web Form across postbacks.
The view state of a page is, by default, placed in a hidden form field
named __VIEWSTATE. View state’s purpose in life is simple: it’s there
to persist state across postbacks. (For an ASP.NET Web page, its state
is the property values of the controls that make up its control
hierarchy.)