in C#,?codice:Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'Inserire qui il codice utente necessario per inizializzare la pagina End Sub Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim inizio As DateTime = DateTime.Now Do While (Now().Subtract(inizio).TotalSeconds <= 5) Loop End Sub Private Sub Button1_Init(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Init Dim btn As Button = DirectCast(sender, Button) btn.Attributes.Add("onclick", "v=this;window.setTimeout(function(){v.disabled=true;document.getElementById('div2').innerHTML = 'Operazione in corso, prego attendere...';}, 1);") End Sub

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