UpdatePanel 刷新问题

lilihua520 2012-05-14 04:14:06

protected void Timer1_Tick(object sender, EventArgs e)

    {

        DataSet ds = AccessDAL.Books.Books_Tanchu(0, 0);

        if (ds.Tables[0].Rows.Count > 0)

        {

            Literal1.Text = "<div style=\"height:300px;\">";

        }

        else

        {

            Literal1.Text = "<div style=\"height:300px;display:none;\">";

        }

    }



protected void Page_Load(object sender, EventArgs e)

    {

        if (!Page.IsPostBack)

        {

            Timer1_Tick(Timer1, new EventArgs());

        }

    }



        <asp:ScriptManager ID="ScriptManager1" runat="server">

        </asp:ScriptManager>

        <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">

            <ContentTemplate>

        <asp:Timer ID="Timer1" runat="server" Interval="5000" ontick="Timer1_Tick"></asp:Timer>

        

                <asp:Literal ID="Literal1" runat="server"></asp:Literal>

                <div id="msg_win" style="top:503px;overflow: hidden;">

                <div class="icos"><a id="msg_min" title="最小化" href="javascript:void 0">_</a><a id="msg_close" title="关闭" href="javascript:void 0">×</a></div>

                    <div id="msg_title">通知：</div>

                    <div id="msg_content">您好，当前您有信息未读。<a href="Books/books_list.aspx?page=31" target="mainFrame">点击进入</a></div>

                </div></div>

            </ContentTemplate>

                        <Triggers>

                            <asp:AsyncPostBackTrigger    ControlID="Timer1" />

                        </Triggers>

        </asp:UpdatePanel>

为什么一直刷新
但是我做了一个后台更新新闻前台自动更新的就不刷新也是这套代码
大虾们帮看看

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切换为时间正序

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Hector_Y 2012-05-15

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<%@ Page Language="C#" AutoEventWireup="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Timer Example Page</title>
<script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
OriginalTime.Text = DateTime.Now.ToLongTimeString();
}

protected void Timer1_Tick(object sender, EventArgs e)
{
StockPrice.Text = GetStockPrice();
TimeOfPrice.Text = DateTime.Now.ToLongTimeString();
}

private string GetStockPrice()
{
double randomStockPrice = 50 + new Random().NextDouble();
return randomStockPrice.ToString("C");
}
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<asp:Timer ID="Timer1" OnTick="Timer1_Tick" runat="server" Interval="10000" />

<asp:UpdatePanel ID="StockPricePanel" runat="server" UpdateMode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Timer1" />
</Triggers>
<ContentTemplate>
Stock price is <asp:Label id="StockPrice" runat="server"></asp:Label><BR />
as of <asp:Label id="TimeOfPrice" runat="server"></asp:Label>
</ContentTemplate>
</asp:UpdatePanel>
<div>
Page originally created at <asp:Label ID="OriginalTime" runat="server"></asp:Label>
</div>
</form>
</body>
</html>

lilihua520 2012-05-15