codice:
<%@ Page Language="vb"%>
<script runat="server">
Sub page_load(obj as object, e as eventargs)
If Not Page.IsPostBack Then
Label1.Text=1
End If
end sub
Sub AddPostBack(Pippo as Object, E as EventArgs)
Label1.Text = Cint(Label1.Text) + 1
End Sub
</script>
<html>
<head>
<title>Add PostBack</title>
</head>
<body>
<form runat=server>
<ASP:Label ID="Label1" Width="200" Runat="Server"/>
<ASP:Button ID="BttAdd" Runat="Server" Text="Add" OnClick="AddPostBack"/>
</form>
</body>
</html>
Ma senza utilizzare pulsanti, nell'evento Load della pagina potresti inserire questo:
codice:
If Not Page.IsPostBack Then
Label1.Text = 1
else
Labe1.Text = Cint(Label1.Text) + 1
End If
Rispondi quotando
