AJAX 帶有 取消功能的 UpdateProgress

來源:互聯網
上載者:User
aspx 頁 :<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>無標題頁</title>
<script language="javascript" type="text/javascript"> 
<!-- 
function CancelAsyncPostBack() { 
var prm = Sys.WebForms.PageRequestManager.getInstance(); 
if (prm.get_isInAsyncPostBack()) { 

prm.abortPostBack(); 



// --> 
</script> 
<style type="text/css">

#UpdatePanel1 {}{

  width:200px; height:100px;

  border: 1px solid gray;

}

#UpdateProgress1 {}{

  width:200px; background-color: #FFC080;

  bottom: 0%; left: 0px; position: absolute;

}

</style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <table style="width: 835px; height: 391px">
            <tr>
                <td style="width: 100px">
                </td>
                <td style="width: 100px">
                </td>
                <td style="width: 100px">
                </td>
            </tr>
            <tr>
                <td style="width: 100px">
                </td>
                <td style="width: 100px">
                    <asp:ScriptManager ID="ScriptManager1" runat="server">
                    </asp:ScriptManager>
                    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
                        <ContentTemplate>
                            <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button" />
                            <asp:Label ID="Label1" runat="server" Text="頁面初始化"></asp:Label>
                        </ContentTemplate>
                    </asp:UpdatePanel>
                    <asp:UpdateProgress ID="UpdateProgress1" runat="server">
                        <ProgressTemplate>
                            正在處理資料,請稍候.<br />
                            <input id="input1" type="button" value="取消" onclick="CancelAsyncPostBack()"/>
                        </ProgressTemplate>
                    </asp:UpdateProgress>
                </td>
                <td style="width: 100px">
                </td>
            </tr>
            <tr>
                <td style="width: 100px">
                </td>
                <td style="width: 100px">
                </td>
                <td style="width: 100px">
                </td>
            </tr>
        </table>
    
    </div>
    </form>
</body>
</html>

aspx.CS : protected void Button1_Click(object sender, EventArgs e)
    {
        System.Threading.Thread.Sleep(3000); //人為的建立一個3秒鐘的延遲並顯示目前時間

        Label1.Text = "Page refreshed at " +

            DateTime.Now.ToString();

    }

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