Ajax更新面板导致整页加载

时间:2012-09-11 18:07:48

标签: asp.net ajax vb.net updatepanel

我正在使用VB.Net,问题是无论我如何尝试,我的更新面板都会导致整页加载。当我从网站下载示例代码并运行时,它的工作原理!即使我将这些样本中的整个代码复制到我新创建的webform中并运行,它仍然会刷新整个页面!可能是什么问题呢? PS。我已经尝试过我的web.config并没有做出与众不同!! :(

WebForm1.aspx的

   <%@ Page Language="vb" AutoEventWireup="false" CodeBehind="WebForm1.aspx.vb" Inherits="WebApplication1.WebForm1" %>

<%@ Register Assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
    Namespace="System.Web.UI" TagPrefix="asp" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>How to use UpdatePanel</title>
</head>
<body>
    <form id="form1" runat="server">
    <asp:ScriptManager ID="ScriptManager1" runat="server" EnablePartialRendering="true" />

        <asp:Label ID="lblTime1" runat="server" /><br />
        <asp:Button ID="butTime1" runat="server" Text="Refresh Panel" /><br /><br />

        <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
            <Triggers>
                <asp:AsyncPostBackTrigger ControlID="butTime1" EventName="Click" />
                <asp:PostBackTrigger ControlID="butTime2" />
            </Triggers>

            <ContentTemplate>
                <asp:Label ID="lblTime2" runat="server" /><br />
                <asp:Button ID="butTime2" runat="server" Text="Refresh Page" /><br />
            </ContentTemplate>
        </asp:UpdatePanel>
        <br />

        <asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional">
            <Triggers>
                <asp:AsyncPostBackTrigger ControlID="DropDownList1" EventName="SelectedIndexChanged" />
            </Triggers>

            <ContentTemplate>
                <asp:Label ID="lblTime3" runat="server" /><br />
            </ContentTemplate>
        </asp:UpdatePanel>

        <asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="true">
            <asp:ListItem>Change</asp:ListItem>
            <asp:ListItem>My</asp:ListItem>
            <asp:ListItem>Value</asp:ListItem>
        </asp:DropDownList>
    </form>
</body>
</html>

WebForm1.aspx.vb

 Public Partial Class WebForm1
    Inherits System.Web.UI.Page

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        lblTime1.Text = DateTime.Now.ToString("T")
        lblTime2.Text = DateTime.Now.ToString("T")
        lblTime3.Text = DateTime.Now.ToString("T")
    End Sub
End Class

1 个答案:

答案 0 :(得分:-1)

如果您有一个从.net framework v1.1升级的旧项目,请从您的Web配置中删除此行以使其起作用:

<xhtmlConformance mode="Legacy"/>

Google对于删除上述内容的影响,但请记住现在已经到了2018年,这已不再是一个真正的问题,我必须是唯一不幸的人,仍然无法从2003年开始编写代码:(