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单击面板导致异步回发,但单击子项导致整页回发

dopostback updatepanel webforms asp.net

1

João Mendes · 技术社区 · 7 年前

我有以下ascx控件:

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="CalendarDay.ascx.cs" 
    Inherits="MVP.Calendar.CalendarDay" %>

<asp:Panel ID="DayWrapper" runat="server" 
    CssClass="day col p-2 border border-left-0 border-top-0 text-truncate">
    <div class="date d-flex align-items-center justify-content-center <%= CurrentDayTag %>">
        <%= DayText %>
    </div>
    <div class="row pl-3 pr-3 d-none d-sm-block">
        <p class="info"><%= InfoText %></p>
        <a class="d-block rounded small align-self-start" title="Test 1"><%= PriceText %></a>
    </div>
</asp:Panel>

下面是其代码的一部分:

public partial class CalendarDay : UserControl, IPostBackEventHandler
{
    protected override void OnPreRender(EventArgs e)
    {
        base.OnPreRender(e);

        DayWrapper.CssClass += DayBackgroundTag;
        DayWrapper.Attributes["onclick"] = "javascript:__doPostBack('" + UniqueID + "', '')";
    }

    void IPostBackEventHandler.RaisePostBackEvent(string eventArgument)
    {
        OnDayClicked();
    }
}

下面是呈现的DOM:

<div id="MainContent_CalDate_WeekRepeater_DayRepeater_3_CalendarDay_1_DayWrapper_1"
    class="day col p-2 border border-left-0 border-top-0 text-truncate day--fully-available"
    onclick="javascript:__doPostBack('ctl00$MainContent$CalDate$WeekRepeater$ctl03$DayRepeater$ctl01$CalendarDay', '')">
    <div class="date d-flex align-items-center justify-content-center ">17</div>
    <div class="row pl-3 pr-3 d-none d-sm-block">
        <p class="info"></p>
        <a class="d-block rounded small align-self-start" title="Test 1">10â¬</a>
    </div>
</div>

这个ascx控件位于一个相当复杂的层次结构中,但最终,所有这些都位于 UpdatePanel .

在呈现的HTML上,如果我单击17或10_ 更新面板 . 两个这些呼叫正在触发 RaisePostBackEvent 功能正常。

我希望每次都能得到Ajax调用。

为什么会发生这种情况,我该如何解决?

1 回复 | 直到 7 年前

1

dana 7 年前

DayWrapper.Attributes["onclick"] = "javascript:__doPostBack('" + UniqueID + "', '')";

DayWrapper.Attributes["onclick"] = Page.ClientScript.GetPostBackEventReference(new PostBackOptions(this));
ScriptManager.GetCurrent(Page).RegisterAsyncPostBackControl(this);

RegisterAsyncPostBackControl ScriptManager