Autopostback and Ispostback in ASP.NET

Question

Hi... I'm very confuse in Autopostback and Ispostback property in asp.net ? Please explain Autopostback and Ispostback property in asp.net with an example ? Thanks.....

Satyapriya Nayak · Answer

Hi Vineet, Autopostback - Property of the control Autopostback - get and set property to control postback on changes made for control. Ex:- this.dropdownlist1.AutoPostBack = true; whenever user will select item, the page will get post back. IsPostback - Property of the Page class 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. Thanks

Anuja Pawar · Answer

IsPostBack postback : the page performs a POST request to itself A postback is initiated by the browser, and reloads the whole page, usually when a control on the page (e.g. a button) is changed. ispostback=true -page is being loaded in response to a client postback. ispostback=false -the page is loaded for the first time AutoPostBack autopostback : a postback is performed automatically, for example when the selected value of a dropdown changes With some controls (e.g. Checkboxes), you choose if changing the control should result in a postback. This property is called AutoPostback

Autopostback and Ispostback in ASP.NET

Answers (2)