问题描述
我有一个带有ajax缩放和滚动启用功能的dundas图表.在网络表单页面中，它可以正常工作.但是一旦我放入一个用户控件并从另一个页面调用它，我就会收到此错误-
I have a dundas chart with ajax zooming and scrolling enable.It works fine in a webform page. But once I put in a user control and called it from another page I get this error -
找不到回调的目标'ctl00 $ ContentPlaceHolder1 $ uc2 $ chartVisits'或未实现ICallbackEventHandler.
the target 'ctl00$ContentPlaceHolder1$uc2$chartVisits' for the callback could not be found or did not implement ICallbackEventHandler.
-当我尝试使用缩放和滚动功能时.
-when I try to use the zoom and scroll functionality.
我该怎么做才能解决此问题.谢谢.
What can I do to resolve this problem.Thank You.
推荐答案
动态添加使用AJAX的控件时，我已经看到此错误.确保在OnInit方法中或在Page_Init事件期间添加任何控件.过去为我解决了这个问题.
I've seen this error when dynamically adding controls that use AJAX. Make sure you're adding any controls in the OnInit method, or during the Page_Init event. That has solved this problem for me in the past.
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