使用ModalPopupExtender而不必设置的TargetControlID？ [英] Use ModalPopupExtender without having to set TargetControlID?

问题描述

我想用modalpopupextender在我的asp.net页面来显示子表单。但它只有上显示的特定条件。在一段JavaScript代码code的确定这些条件。

I'd like to use a modalpopupextender in my asp.net page to show a sub form. But it only has to show on specific conditions. Those conditions are determined in a piece of javascript code.

因此​​，最重要的是，模式弹出不必显示在按钮点击。但是，如果我离开了财产的TargetControlID空的，我得到了以下异常：

So, most importantly, the modal popup doesn't have to show on a button click. However, if I leave the property TargetControlID empty I get the following exception:

ModalPopupExtender1'的的TargetControlID无效。该值不能为null或空。
  说明：执行当前Web请求的执行过程中发生未处理的异常。请查看有关错误的详细信息的堆栈跟踪以及它起源于code。

The TargetControlID of 'ModalPopupExtender1' is not valid. The value cannot be null or empty. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

异常详细信息：
  System.InvalidOperationException：该
  中的TargetControlID
  ModalPopupExtender1'是
  无效。值不能为空或
  空的。

Exception Details: System.InvalidOperationException: The TargetControlID of 'ModalPopupExtender1' is not valid. The value cannot be null or empty.

我只是有的TargetControlID一个隐藏按键还是有ASLO更体面的选择吗？

Do I just have the TargetControlID to an hidden button or is there aslo a more decent option?

推荐答案

设置的TargetControlID到一个隐藏按钮（显示：无;）是最好的方法，据我所知

Setting the TargetControlID to a hidden button(display:none;) is the best way as far as I know.

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