Ecco un piccolo script per intercettare e gestire il PostBack:
<% @Page Language="vb" %>
<html>
<head>
<title>IsPostBack</title>
<script runat="server" >
Sub Page_Load(Sender As Object, e As EventArgs)
If Not IsPostBack Then
lblMessaggio.Text = "Prima del PostBack"
Else
lblMessaggio.Text = "Dopo il PostBack"
End If
End Sub
</script>
</head>
<body>
<h1>IsPostBack </h1>
<form id="frmPostBack" runat="server">
<asp:label id="lblMessaggio" runat="server"/>
<asp:Button type="Submit" text="Post Back" runat="server"/>
</form>
</body>
</html>
Buona PostBeccata! :)
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