按钮仅在第二次单击时触发 [英] Button only fires on second click

问题描述

我有一个包含4个项目的下拉列表。根据所做的选择，将使用不同的按钮更新面板。单击按钮时，将打开一个URL。不知何故，只有在我第一次选择下拉列表中的项目时才会触发它。



我做错了什么？

Hi,

I have a dropdownlist with 4 items. Based on the selection made a panel will be updated with different buttons. When clicking the buttons an url will open. Somehow it is only fired on second click, when I first have chosen the item in the dropdownlist.

What am I doing wrong?

推荐答案

回复

在ondownlectedindexchanged下拉事件中放置一个断点，然后在第一次点击时检查事件是否被触发..

成员11971472在2秒前

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感谢您的帮助。我在更新面板中做了它，但会将您的响应标记为解决方案。

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put a breakpoint in onselectedindexchanged event of dropdown and then check whether event is triggered or not while first click time..
Member 11971472 at 2 secs ago
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Thanks for the help. I made it in an updatepanel instead, but will mark your response as solution.

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