ASP.NET Ajax查找组件问题

I've got a page where I have a ModalPopUpExtender which I want to show from code.

我有一个页面，我有一个ModalPopUpExtender，我想从代码中显示。

This is my site structure which is a web form within a nested masterpage:

这是我的网站结构，它是嵌套母版页中的网络表单：

    ...
    <asp:Content ID="con" ContentPlaceHolderID="mainContent" runat="server">
        <asp:MultiView ID="tabMultiView" runat="server">
            <asp:View ID="generalTab" runat="server">
                <asp:ScriptManager ID="scriptManager"  runat="server">
                </asp:ScriptManager>

                <ajaxToolkit:ModalPopupExtender ID="newAddressModalPopup" CancelControlID="newAddressDialogCancelButton"
                    BackgroundCssClass="modalBackground" TargetControlID="newAddressLink" PopupControlID="newAddressDialogDiv"
                    runat="server">
                </ajaxToolkit:ModalPopupExtender>
                ...

                <a href="" onclick="openNewAddressDialog()">open dialog</a>

               <script type="text/javascript">


                    function openNewAddressDialog() {
                        $find('<%= newAddressModalPopup.ClientID %>').show();
                    }
                </script>
...

The find method always returns null. I also tried findComponent, etc. It's always null. When I debugged the method I noticed that the components collection (which is kind of a dictionary with the control ID as key) is empty.

find方法始终返回null。我也试过findComponent等。它总是为null。当我调试方法时，我注意到组件集合（它是一种控件ID为键的字典）是空的。

What could the problem be? BTW, I am using jQuery stuff on the page as well.

问题是什么？顺便说一句，我也在页面上使用jQuery的东西。

Thanks a lot!

非常感谢！

2 个解决方案

#1

Ok I found it. The TargetControl was not rendered in HTML because it was in another view.

好的，我找到了。 TargetControl未在HTML中呈现，因为它位于另一个视图中。

#2

In your JavaScript function try using document.getElementById("ctl00_ContentPlaceHolder1_newAddressModalPopup"). Maybe it works. Let me know if you get issues.

在JavaScript函数中尝试使用document.getElementById（“ctl00_ContentPlaceHolder1_newAddressModalPopup”）。也许它有效。如果你遇到问题，请告诉我。

Or try Setting BehaviorID="someid" to the modal popupextender and use this JavaScript code:

或者尝试将BehaviorID =“someid”设置为modal popupextender并使用此JavaScript代码：

function changeValue()
{
    var myBehavior = $find("myBehavior1");
    myBehavior.show();
}

Or:

要么：

var modalDialog = $find("newAddressModalPopup"); 
// Get reference to modal popup using the Ajax API $find() function.

 if (modalDialog != null) {
     modalDialog.show();
 }

#1