關於 AjaxControlToolkit requires ASP.NET Ajax 4.0 scripts. 錯誤

錯誤: AjaxControlToolkit requires ASP.NET Ajax 4.0 scripts. Ensure the correct version of the scripts are referenced. If you are using an ASP.NET ScriptManager, switch to the ToolkitScriptManager in AjaxControlToolkit.dll.

解決辦法：

只要將：

<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>

更改為：

<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server"></asp:ToolkitScriptManager>

當然在頁面的頭部，你有寫

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>

 

附 : ToolkitScriptManager VS ScriptManager