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虽然我收到错误“使用 System.Web.UI”作为命名空间未找到。我试图通过添加参考来弄清楚。但不幸的是,在 .NET 选项卡中,我找不到 System.Web.UI 组件,而其他组件在那里。如何解决问题?
编辑:好的,我原来的答案是基于问题的原始版本......
下一步:您是否参考了System.Web.dll其中至少包含许多类的程序集System.Web.UI?
System.Web.dll
System.Web.UI