UpdatePanel 仅回发 RadioButtonList 控件的整个页面

Question

我的网页上有 3 个 UpdatePanel。他们都工作得很好，多年来一直使用 UpdatePanels，从未遇到过这个问题。

RadioButtonList 正在发回整个页面而不是 UpdatePanel，并且在输出中看不到任何错误。我以前从未见过这种行为并将代码复制到另一个项目中，并且它按预期工作。页面上的所有其他控件都以相同的格式按预期工作。

是否还有其他原因导致此行为发生？我的代码如下：

ASPX代码：

<asp:RadioButtonList ID="rbSelectWeek" runat="server" ClientIDMode="Static" CssClass="rb-select" OnSelectedIndexChanged="rbSelectWeek_SelectedIndexChanged" AutoPostBack="true" >
    <asp:ListItem Text="Previous" Value="1" />
    <asp:ListItem Text="Current" Value="2" Selected="True" />
    <asp:ListItem Text="Next" Value="3" />
    <asp:ListItem Text="All" Value="4" />
</asp:RadioButtonList>

<asp:UpdatePanel ID="upCaseViewer" runat="server" UpdateMode="Conditional">
    <ContentTemplate>
        <asp:HiddenField ID="dtFrom" runat="server" ClientIDMode="Static" Value="1900-01-01" />
        <asp:HiddenField ID="dtEnd" runat="server" ClientIDMode="Static" Value="9999-12-31" />
    </ContentTemplate>
    <Triggers>
        <asp:AsyncPostBackTrigger ControlID="cmbTeam" EventName="SelectedIndexChanged" />
        <asp:AsyncPostBackTrigger ControlID="rbSelectWeek" EventName="SelectedIndexChanged" />
    </Triggers>
</asp:UpdatePanel>

VB.Net / C#

Protected Sub rbSelectWeek_SelectedIndexChanged(sender As Object, e As EventArgs) Handles rbSelectWeek.SelectedIndexChanged
    Dim sVal As Integer = rbSelectWeek.SelectedValue

    rbSelectWeek.ClearSelection()
    rbSelectWeek.SelectedValue = sVal

    Select Case sVal
        Case 1
            dtFrom.Value = getFunctions.getPrevWeek("Start")
            dtEnd.Value = getFunctions.getPrevWeek("End")
        Case 2
            dtFrom.Value = getFunctions.getCurrWeek("Start")
            dtEnd.Value = getFunctions.getCurrWeek("End")
        Case 3
            dtFrom.Value = getFunctions.getNextWeek("Start")
            dtEnd.Value = getFunctions.getNextWeek("End")
        Case Else
            dtFrom.Value = getFunctions.getAll("Start")
            dtEnd.Value = getFunctions.getAll("End")
    End Select
End Sub

Answer 1

当引用的元素使用 ClientIDMode="Static" 时，AsyncPostBackTriggers 不起作用。所以改成

<asp:RadioButtonList ID="rbSelectWeek" runat="server" CssClass="rb-select" OnSelectedIndexChanged="rbSelectWeek_SelectedIndexChanged" AutoPostBack="true" >
    <asp:ListItem Text="Previous" Value="1" />
    <asp:ListItem Text="Current" Value="2" Selected="True" />
    <asp:ListItem Text="Next" Value="3" />
    <asp:ListItem Text="All" Value="4" />
</asp:RadioButtonList>

UpdatePanel 仅回发 RadioButtonList 控件的整个页面

UpdatePanel posting back entire page for the RadioButtonList control only

vb.net

asp.net

asp.net-mvc

webforms