在 OnCommand 事件中查找嵌套中继器

Question

我在使用 OnCommand 事件查找嵌套中继器时遇到问题。嵌套的 Repeater (Rep3) 在 FooterTemplate 中有一个 LinkButton，有一些带有我需要发送到 SQL 的数据的文本框。问题是我需要在 LinkButton 的 OcCommand 事件中引用包含 LinkButton 的 Repeater (Rep3)。下面是我的标记；

<asp:Repeater ID="Rep1" runat="server">
<ItemTemplate>
    <asp:Repeater ID="Rep2" runat="server">
        <ItemTemplate>
            <table class="table table-striped table-condensed">
                <asp:Repeater ID="Rep3" runat="server">
                    <ItemTemplate>
                        <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
                    </ItemTemplate>
                    <FooterTemplate>
                        <asp:LinkButton ID="LinkButtonSave" runat="server" Text="Save" OnCommand="LinkButtonSave_OnCommand" />
                    </FooterTemplate>
                </asp:Repeater>
            </table>
        </ItemTemplate>
    </asp:Repeater>
</ItemTemplate>

我试过如下找到中继器，但没有找到：

 protected void LinkButtonSave_OnCommand(object sender, CommandEventArgs e)
    {
        LinkButton LinkButtonSave = (LinkButton) sender;
        RepeaterItem riItem = (RepeaterItem) LinkButtonSave.NamingContainer;
        Repeater Rep3 = (Repeater) riItem.FindControl("Rep3");
    }

Answer 1

我在上面的标记中没有看到 "RepQuestions" 任何地方，但如果我理解正确的话，你正试图找到作为 LinkButtonSave 父级的转发器。以下是您的操作方法：

    protected void Page_Load(object sender, EventArgs e)
    {
        Rep1.DataSource = new string[] { "Test" };
        Rep1.DataBind();
    }
    protected void Rep1_ItemCreated(object sender, RepeaterItemEventArgs e)
    {
        Repeater Rep2 = e.Item.FindControl("Rep2") as Repeater;
        Rep2.ItemCreated += Rep2_ItemCreated;
        Rep2.DataSource = new string[] { "Test" };
        Rep2.DataBind();
    }
    protected void Rep2_ItemCreated(object sender, RepeaterItemEventArgs e)
    {
        Repeater Rep3 = e.Item.FindControl("Rep3") as Repeater;
        Rep3.DataSource = new string[] { "Test" };
        Rep3.DataBind();
    }
    protected void LinkButtonSave_OnCommand(object sender, CommandEventArgs e)
    {
        LinkButton LinkButtonSave = (LinkButton)sender;

        // Here is the found repeater. The first parent returns the FooterTemplate
        Repeater Rep3 = LinkButtonSave.Parent.Parent as Repeater;
    }

在 OnCommand 事件中查找嵌套中继器

Find nested repeater on OnCommand event

c#

asp.net

repeater