asp.net Page_Load 與 Page.IsPostBack 執行個體教程

來源:互聯網
上載者:User

先來看看asp.net page_load 例子.

<script  runat="server">
Sub Page_Load
   lbl1.Text="The date and time is " & now()
End Sub
</script>

<html>
<body>
<form runat="server">
<h3><asp:label id="lbl1" runat="server" /></h3>
</form>
</body>
</html>

再看看asp.net ispostback例子吧.

<script  runat="server">
Sub Page_Load
if Not Page.IsPostBack then
   lbl1.Text="The date and time is " & now()
end if
End Sub

Sub submit(s As Object, e As EventArgs)
lbl2.Text="Hello World! www.111cn.net  "
End Sub
</script>

<html>
<body>
<form runat="server">
<h3><asp:label id="lbl1" runat="server" /></h3>
<h3><asp:label id="lbl2" runat="server" /></h3>
<asp:button text="Submit" onclick="submit" runat="server" />
</form>
</body>
</html>

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