我正在尝试创建一个简单的用户控件,它是一个滑块.当我向用户控件添加AjaxToolkit SliderExtender时,我得到了这个(*&$#()@#error:
Server Error in '/' Application. The Controls collection cannot be modified because the control contains code blocks (i.e. `<% ... %>`). 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.
Exception Details: System.Web.HttpException: The Controls collection cannot be modified because the control contains code blocks (i.e. `<% ... %>`).
Source Error:
An unhandled exception was generated …