WebC# 选择多行&；数据表中值出现多次的列,c#,linq,datatable,C#,Linq,Datatable,我有一张如下图所示的桌子： 我试图返回一个结果，该结果将返回产品代码相同的所有行（和列） … WebI need to write a Linq query to get the values from dataset or datatable to check if the values are present in List. Please help me in writing the query to get datas from dataset or datatable. i will use foreach after getting the values to check whether the data is present in list EDIT:
c# - LINQ with groupby and count - Stack Overflow
http://duoduokou.com/csharp/17943264155419420815.html WebDec 5, 2011 · C# var Query = from p in DCDC.EMP.GroupBy (p => p.departmentname) select new { count = p.Count (), p.First ().departmentname, }; Hope it helps :) Posted 6 … jius leathermules03
[Solved] Linq groupby on datatables - CodeProject
WebOct 19, 2012 · group table by new { placeCol = table ["Place"] } into groupby select new { Value = groupby.Key, ColumnValues = groupby }; foreach (var key in grouped) { … WebC# 当实例在多个列上分组或分类时，如何找到平均值？,c#,sql,sql-server,entity-framework,linq,C#,Sql,Sql Server,Entity Framework,Linq,有一个包含以下数据的“结果”表： ID Title Category SubCategory Value 1 Part-1 CatX A 100 2 Part-1 CatX B 0 3 Part-1 CatX C 50 4 Part-1 CatY A 100 5 Part-1 CatY B WebC# LINQ计数和按不同列分组,c#,linq,datatable,C#,Linq,Datatable,我想计算一下用户编辑或创建了多少文档。因此，我有一个数据表，其中包含如下信息： Input DocumentName ModifiedBy CreatedBy a Frank Frank b Mike Frank c John Mike 这应该是输出： Name DocumentsModified(Total) DocumentsCreated jius leatherplatformoxford01