エンティティ フレームワークを ORM として使用してデータベースにクエリを実行するプロジェクトを作成してください。これは私のクエリです
Dim subjectSearch = From subSearch In DemoSchool.EssenceSubjectRegistrations Where subSearch.Session = drpSession.SelectedItem.Text _
AndAlso subSearch.Term = drpTerm.SelectedItem.Text AndAlso subSearch.RealClass.ClassSN = findClassSN.FirstOrDefault AndAlso _
subSearch.SubjectCode = drpSubject.SelectedValue _
Select New With {.SubjectRegSN = subSearch.SubjectRegSN,
.FirstName = subSearch.Student.FirstName,
.Surname = subSearch.Student.Surname,
.CA1 = subSearch.CA1,
.CA2 = subSearch.CA2,
.CA3 = subSearch.CA3,
.CA4 = subSearch.CA4,
.CA5 = subSearch.CA5,
.CA6 = subSearch.CA6,
.CA7 = subSearch.CA7,
.CA8 = subSearch.CA8,
.CA9 = subSearch.CA9,
.CA10 = subSearch.CA10,
.Exam = subSearch.Exam}
次に、結果を照会して、これを行うことで何らかの操作を実行できるようにします
Dim secSubjectSearch = (From jamie In subjectSearch Select jamie).ToList() _
.Select(Function(jamie) New With {.SubjectRegSN = jamie.SubjectRegSN,
.FirstName = jamie.FirstName,
.Surname = jamie.Surname,
.CA1 = jamie.CA1,
.CA2 = jamie.CA2,
.CA3 = jamie.CA3,
.CA4 = jamie.CA4,
.CA5 = jamie.CA5,
.MidTerm = CDbl(jamie.CA1 + jamie.CA2 + jamie.CA3 + jamie.CA4 + jamie.CA5) / 5,
.CA6 = jamie.CA6,
.CA7 = jamie.CA7,
.CA8 = jamie.CA8,
.CA9 = jamie.CA9,
.CA10 = jamie.CA10,
.Total = CDbl(jamie.CA1 + jamie.CA2 + jamie.CA3 + jamie.CA4 + _
jamie.CA5 + jamie.CA6 + jamie.CA7 + jamie.CA8 + jamie.CA9 + jamie.CA10),
.Exam = jamie.Exam})
この結果は、想定どおりに表示される gridview コントロールにバインドされています。たとえば、.Total= CDbl(jamie.CA1 + jamie.CA2 + jamie.CA3 + jamie.CA4 + _ jamie.CA5 + jamie.CA6 + jamie.CA7 + jamie.CA8 + jamie.CA9 + jamie.CA10)結果は、列を一緒に追加することを伴う数値です。これが
.Total aspect=(56,56,78,58,90,98,99) i want a column that gives the position of each persons record like 99-1
98-2
90-3
78-4
58-5
56-6
56-6
検索の列に基づく一種の評価システムのようなものです。助けが必要です。さらに説明が必要な場合は、問題を詳しく説明してみます。ありがとう