更新进度控制在 asp.net 中不起作用

本文关键字:net 不起作用 asp 控制 更新 | 更新日期: 2023-09-27 17:56:29

我定义了一个<asp:UpdateProgress><asp:UpdatePanel>

  <asp:ScriptManager ID="sm1" runat="server"></asp:ScriptManager>
    <asp:UpdatePanel ID="update1" runat="server">
        <ContentTemplate>
            <asp:Label id="lblresult" runat="server"></asp:Label><br /><br />
            <asp:Button ID="btn1" runat="server" Text="Refresh" OnClick="btn1_Click" />    <br />
      </ContentTemplate>
    </asp:UpdatePanel>
     <asp:UpdateProgress ID="up1" runat="server" AssociatedUpdatePanelID="update1">
                <ProgressTemplate>
                        <span style="color:green; font-style:italic;">Loading, please wait...</span>    
                </ProgressTemplate>
    </asp:UpdateProgress>    

按钮事件定义为

protected void btn1_Click(object sender, EventArgs e)
{
    lblresult.Text = "<span style='color:red;'>"+ DateTime.Now.ToString() +"</span>";
}

但是,我没有得到Loading, please wait...

更新进度控制在 asp.net 中不起作用

<script type="text/javascript">
    var updateProgress = null;
    function postbackButtonClick() {
        updateProgress = $find("<%= uprMaster.ClientID %>");
        window.setTimeout("updateProgress.set_visible(true)", updateProgress.get_displayAfter());
        return true;
    }
</script>
<asp:Button runat="server" Text="Search" ID="btnSearch" OnClick="btnSearch_Click" ClientIDMode="Static" OnClientClick="return postbackButtonClick();"   />

将更新进度放在里面喜欢这个

<asp:ScriptManager ID="sm1" runat="server"></asp:ScriptManager>
    <asp:UpdatePanel ID="update1" runat="server">
        <ContentTemplate>
          <asp:UpdateProgress ID="up1" runat="server" AssociatedUpdatePanelID="update1">
            <ProgressTemplate>
                    <span style="color:green; font-style:italic;">Loading, please wait...</span>    
            </ProgressTemplate>
        <asp:Label id="lblresult" runat="server"></asp:Label><br /><br />
        <asp:Button ID="btn1" runat="server" Text="Refresh" OnClick="btn1_Click" />    <br />
  </ContentTemplate>
</asp:UpdatePanel>
</asp:UpdateProgress>