Back button refresh page

There are situation wherein you need to reload the page/control state after browser’s “Back” button is pressed.

For example: If you have a checkbox, If someone clicks on checkbox  postback and selectedindexchange/checkedchange event is fired. Once browser’s back button is pressed, page is refreshed but still the checkbox is checked.

Below is the solution for this.

protected override void OnInit(EventArgs e)

    {
        Response.Cache.SetCacheability(HttpCacheability.NoCache);
        Response.Cache.SetNoStore();
        Response.Cache.SetExpires(DateTime.MinValue);

        base.OnInit(e);
    }

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