A ScriptManager is required on the page to use ASP.NET AJAX Script Components

<%--添加AjaxControlToolkit引用--%>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %>

 

 

添加 这个就行了


  
  

삭제 

转载于:https://www.cnblogs.com/ok519/archive/2009/06/30/1514020.html

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