我有以下几行:
[System.Diagnostics.DebuggerNonUserCodeAttribute()]
private global::AjaxControlToolkit.ToolkitScriptManager @__BuildControlToolkitScriptManager1() {
global::AjaxControlToolkit.ToolkitScriptManager @__ctrl;
我得到了这个错误:
The type 'System.Web.UI.ScriptManager' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.
我选择Add Reference>.Net>system.web.extension version 4.0
了视觉网络开发人员,但仍然得到同样的错误。
我能做些什么?