范围变量隐藏封闭块LINQ中的变量[关闭]

Question

我有以下 3 个查询。第一个工作正常，但后两个抛出一个错误，说 range varible Year (or semester, respectively) hides a variable in an enclosing block or a range variable previously defined in the query expression. 我不是最擅长编码，所以我在 MSDN 上查找的任何内容都让我更加困惑。这里的任何帮助都会很棒。

Dim compulsoryModule = (From mods In db.Modules
                                Join deg In db.Degrees On mods.Degree_code Equals deg.Degree_code
                                Where deg.Degree_code = degree And mods.Compulsory = True And mods.Level = 1
                                Select mods.Module_code)

        Dim year = (From mods1 In db.Modules
                    Join deg1 In db.Degrees On mods1.Degree_code Equals deg1.Degree_code
                    Where deg1.Degree_code = degree And mods1.Compulsory = True And mods1.Level = 1
                    Select mods1.Year)

        Dim semester = (From mods In db.Modules
                        Join deg In db.Degrees On mods.Degree_code Equals deg.Degree_code
                         Where deg.Degree_code = degree And mods.Compulsory = True And mods.Level = 1
                      Select mods.Semester)

这些错误仅在select mods1.year 和select mods.semester NB 的行上抛出year 查询数据库暗淡已更改为在它们上面有一个1。这只是我试图解决问题。如果我删除它们，它不会更改代码。

Answer 1

我将Dim 年更改为年，将Dim 学期更改为学期。这已经纠正了错误