Question

我无法在转发器内回传UpdatePanel。

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

<asp:Repeater ID="Posts" runat="server" OnItemCreated="Posts_OnItemCreated">
    <ItemTemplate>
        <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional" >
            <ContentTemplate>
                <asp:Label ID="lblComentarios" runat="server" Text='<%# Eval("LabelComentarios") %>'></asp:Label>
            </ContentTemplate>
            <Triggers>
                <asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click"/>
            </Triggers>
        </asp:UpdatePanel>

        <asp:TextBox ID="txtComentario" runat="server" CssClass='<%# Eval("PostId") %>'></asp:TextBox>

        <asp:Button ID="Button1" ClientIDMode="Static" runat="server" OnCommand="btnComentar_OnCommand" CommandName='<%# Eval("PostId") %>' class='<%# Eval("PostId") %>' />

    </ItemTemplate>
</asp:Repeater>

转发器的代码OnItemCreated（）：

protected void Posts_OnItemCreated(object sender, RepeaterItemEventArgs e)
{
    var control = e.Item.FindControl("Button1");
    ScriptManager.GetCurrent(Page).RegisterAsyncPostBackControl(control);
}

然后在我的代码隐藏OnCommand ..

protected void btnComentar_OnCommand(object sender, CommandEventArgs e)
{
    MyCode();
    foreach (RepeaterItem item in Posts.Items)
    {
        var panel = (UpdatePanel)item.FindControl("UpdatePanel1");
        panel.Update();
    }
}

除了panel.update（）之外，一切都在做它应该做的事情。

Answer 1

我已完成以下代码及其更新测试值以标记

ASPX：

public void OnActionExecuting(ActionExecutingContext filterContext)
{
    try
    {
        var attribute = filterContext.ActionDescriptor.GetCustomAttributes(typeof(AuthoriseAction), false).SingleOrDefault() as AuthoriseAction;
        if (attribute != null)
        {
            var userID = _cookieManager.DecryptFormsAuthenticationCookie(filterContext.HttpContext);

            if (userID == -1) { filterContext.Result = new Http401Result(); return; }

            var user = _userManager.LoadByIDSync(userID);

            var isAuthenticated = _authenticator.AuthenticateUserSync(user);

            ...
        }
}

代码背后：

<%@ Page Language="C#" AutoEventWireup="true"  EnableEventValidation="false" CodeBehind="Test.aspx.cs" Inherits="WebApplication1.Test" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            <asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>

            <asp:Repeater ID="Posts" runat="server" OnItemCreated="Posts_OnItemCreated">
                <ItemTemplate>
                    <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
                        <ContentTemplate>
                            <asp:Label ID="lblComentarios" runat="server" Text='<%# Eval("LabelComentarios") %>'></asp:Label>
                              <asp:Label ID="Label1" runat="server" Text='<%# Eval("LabelComentarios") %>'></asp:Label>
                        </ContentTemplate>
                        <Triggers>
                            <asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" />
                        </Triggers>
                    </asp:UpdatePanel>

                    <asp:TextBox ID="txtComentario" runat="server" CssClass='<%# Eval("PostId") %>'></asp:TextBox>

                    <asp:Button ID="Button1" ClientIDMode="Static" runat="server" OnCommand="btnComentar_OnCommand" CommandName='<%# Eval("PostId") %>' class='<%# Eval("PostId") %>' />

                </ItemTemplate>
            </asp:Repeater>
        </div>
    </form>
</body>
</html>

同时检查！IsPostback是否正确

回复中缺少转发器内的Ajax UpdatePanel

1 个答案: