Difference between AUTOPOSTBACK and ISPOSTBACK in asp.net
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ispostback- checks whether the page is being loaded in response to a client postback, or if it is being loaded and accessed for the first time.
ispostback=true -page is being loaded in response to a client postback.
ispostback=false -the page is loaded for the first time
the page performs a POST request to itself
a postback is performed automatically, for example when the selected value of a dropdown changes
a method which is invoked when a certain event occurs such as clicking on a button. It also could have another meaning that a page performs a request back to the server (such as an AJAX request
IsPostback - get property of the Page class to check if page is post back i.e. if it is true then page has already executed Init function of the page else it is first time the page has requested to be executed.Hope it will help.
autopostback: a postback is performed automatically, for example when the selected value of a dropdown changes.
Controls that support AutoPostback includes:
Dropdownlist selected value changed.
IsPostBack is used to check page is loaded for the first time or is reloaded. eg:
if page is loaded for first time we enter the value in dropdownlist from database. If the page is reloaded we are not going to enter that value again. So we check for
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