Ajax TabContainerTabPanels中断回发 [英] Ajax TabContainerTabPanels Break postbacks

问题描述

大家看看...

<asp:TabContainer ID="jkhgjkgh" runat="server">
    <asp:TabPanel ID="jkkljhgh" runat="server" HeaderText="sdkl;fgjl;kgjdf">
        <ContentTemplate>
            <asp:Button ID="jhgkjgh" runat="server" Text="Button" onclick="Button1_Click" />
        </ContentTemplate>
    </asp:TabPanel>
    <asp:TabPanel ID="jkgh" runat="server" HeaderText="gjdkl;gjdf;g" Visible="false">
        <ContentTemplate>
            <asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="true" OnSelectedIndexChanged="dropDownSelect">
                <asp:ListItem Text="test" />
                <asp:ListItem Text="test" />
                <asp:ListItem Text="test" />
                <asp:ListItem Text="test" />
            </asp:DropDownList> 
        </ContentTemplate>
    </asp:TabPanel>

没什么疯狂的...只是一个带有几个面板的标签容器，第二个面板被隐藏了.

nothing crazy ... just a tabcontainer with a couple of panels on it the second is hidden.

现在我们去看后面的代码...

now we go to the code behind ...

    protected void Button1_Click(object sender, EventArgs e)
    {
        TabPanel p = new TabPanel();

        p.ContentTemplate = jkgh.ContentTemplate;

        jkhgjkgh.Tabs.Add(p);
    }

    protected void dropDownSelect(object sender, EventArgs e)
    {
        int i = 0;
    }

这是所有错误的地方...

Here's where it all goes horribly wrong ...

我单击第一个选项卡面板上的按钮以创建一个新的选项卡，该模板在我的隐藏面板中定义了模板，然后转到该面板并在下拉列表中更改选择....

I click the button on the first tab panel to create a new tab that has the template defined in my hidden panel, i then go to that panel and change the selection in the drop down ....

它执行回发，但是从不引发下拉事件....

It does a postback but the drop down event is never raised ....

任何想法???

推荐答案

问题是您无法动态复制隐藏的模板化选项卡，并向其中添加一个新的选项卡. 显然，tabcontainer控件在没有大量黑客攻击"的情况下是不允许这样做的.

The problem is that you cant dynamically copy the hidden templated tabpanel and add a new one in to the collection. Apparently the tabcontainer control doesn't allow for this without a lot of "hacking around".

我不确定为什么会这样，但似乎ITemplate类型不能很好地克隆以进行事件处理.

I'm not entirely sure why but it seems that ITemplate types don't clone well for event handling.

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