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当我想使用按钮在 C# 中编写代码时,它不会转到“.cs”文件来编写 C# 代码。当我检查项目源时,我发现了这个错误:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
Severity Code Description Project File Line Error CS0234 The type or namespace name 'Linq' does not exist in the namespace 'System' (are you missing an assembly reference?) Golestani C:\Users\javad\Documents\Golestani\Login.aspx.cs 3