Datatable select sum group by c#

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http://duoduokou.com/csharp/40874523111395779149.html WebJun 27, 2008 · There is no standard functionality in the DataTable itself to do this. If you can use LINQ, then the groupby clause will do the aggregation for you. Otherwise, you will have to sort the DataTable on the Id column, and then loop through the rows adding the Value column until the Id changes, and then

c# - Linq Sum with group by - Stack Overflow

WebApr 4, 2024 · Edited the answer, as my understanding regarding the requirements were incorrect, we need to GroupBy using the columns - Block (string),Transplant(Datetime),Variety(string) and create the sum of Quantity1 (int),Quantity2 (int). Following code shall help (It use the Linq API): WebApr 3, 2024 · GroupBy (Function (row) New With { Key .Name = row.Field (Of String) ("Name"), Key .Color = row.Field (Of String) ("Color") }) Dim tableResult = table.Clone () For Each grp In fruitGroups tableResult.Rows.Add (grp.Key.Name, grp.Sum (Function (row) row.Field (Of Int32) ("Quantity")), grp.Key.Color) Next did both tyransaurus take care of their young

c# - Efficient DataTable Group By - Stack Overflow

WebC# datatable中GROUPBY子句中的多列,c#,C#,我有一个数据表包含3列计数，内存，核心。现在我试图通过内存和内核来获得计数组的总和我正在使用以下代码： var queryG = … WebJan 25, 2024 · Let's take an example to calculate the sum of the DataTable column using the compute method of DataTable. DataTable DataTable dt = new DataTable (); dt.Columns.AddRange (new DataColumn [4] { new … WebJan 25, 2024 · Let's take an example to calculate the sum of the DataTable column using the compute method of DataTable. DataTable DataTable dt = new DataTable (); dt.Columns.AddRange (new DataColumn [4] { new DataColumn ("ProductId", typeof(int)), new DataColumn ("ProductName", typeof(string)), new DataColumn ("Qty", typeof(int)), city in german translation

sum values in datatable using linq based on conditions

linq - C# Datatable group, select and sum - Stack Overflow

WebOct 13, 2016 · You can group by Supplier and Product as. var result = from x in data group x by new { x.Supplier, x.Product } select x; or. var result = data.GroupBy(x => new { x.Supplier, x.Product }); similarly you can use any number of property in group clause WebApr 21, 2015 · Calculate Sum (Total) of DataTable Columns using DataTable Compute function The DataTable Compute function accepts two parameters 1. Expression – It is an Aggregate function such as SUM, COUNT, MIN, MAX and AVG. 2. Filter – It is used to filter rows like WHERE clause. If set blank then all rows are considered. city in france famous for mustardWebJun 23, 2014 · GroupBy (m => m.PersonType). Select (c => new { Type = c.Key, Count = c.Count (), Total = c.Sum (p => p.BusinessEntityID) }); } public void GroupBy9 () { var list1 = dbEntities.People. GroupBy (m => m.PersonType). Select (c => new { Type = c.Key, Max = c.Max (), }); } Share Improve this answer Follow answered Jan 7, 2024 at 12:33 city in georgia that hosts a golf tournament

"Web我正在努力使LINQ Group By成為我的大腦，並且在我的知識上有一個小缺陷。我想按多個列進行分組，這些列我知道可以對new 和某些字段進行處理。唯一的問題是，基於某些查詢字符串值，我可能會或可能不想將它們包括在內。我有這個：我可能希望我的匿名對象僅具有第一個字段，或最后兩個字段 ... " - Datatable select sum group by c#

Datatable select sum group by c#

c# - LINQ Lambda Group By with Sum - Stack Overflow

WebSep 2, 2016 · The DataTable Compute function accepts two parameters 1. Expression – It is an Aggregate function such as SUM, COUNT, MIN, MAX and AVG. 2. Filter – It is used to filter rows like WHERE clause. If set blank then all rows are considered. WebC# 字典分组和总和原因已添加具有相同键的项,c#,linq,.net-core,group-by,C#,Linq,.net Core,Group By,我有一个场景，如果满足特定的布尔值（office\u debit\u totalline），我可以直接从列中获取金额，否则我需要通过对一些特定值进行分组来计算，代码如下： var result = products.Select(p => new ResponseDto() { customer_id = p ...

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WebAug 18, 2015 · This is the content of DataTable which is returned from database. Now I just would like to group the results by User Id and loop through to out put result. foreach (DataRow userRow in DataTableGroupedByUser){foreach (DataRow restOfColumns in AddressAndPhoneRows){Output user details } } The output I would get should be: WebApr 14, 2024 · 由于该表是有前台创建的，DB中没有该表信息所以不能使用SQL语句，我采用的Linq语句实现的对Material ,TotalQTY的分组求和。通过Data Table创建多个行，根 …

WebJul 14, 2014 · var newSort = from row in objectTable.AsEnumerable () group row by new {ID = row.Field ("resource_name"), time1 = row.Field ("day_date")} into grp orderby grp.Key select new { resource_name1 = grp.Key.ID, day_date1 = grp.Key.time1, Sum = grp.Sum (r => r.Field ("actual_hrs")) }; c# linq … WebMar 29, 2013 · Select TeamID, Count (*) From Table Group By TeamID but in my application, the only way I know how to handle this would be something like this: Dictionary d = new Dictionary (); foreach (DataRow dr in dt.Rows) { if (d.ContainsKey (dr.ID)) { d [dr.ID] = d [dr.ID] + 1; } else { d.Add (dr.ID, 1); } } Is there a …

WebJan 10, 2024 · DataTable dtOriginal = new DataTable (); dtOriginal.Columns.AddRange ( new DataColumn [] { new DataColumn ( "Id" ), new DataColumn ( "Amount 1" ), new DataColumn ( "Amount 2" ), new DataColumn ( "Amount 3" ) }); dtOriginal.Rows.Add ( 1, 2, 2, 2 ); dtOriginal.Rows.Add ( 12, 4, 6, 4 ); dtOriginal.Rows.Add ( 12, 6, 6, 5 ); … WebЧтобы добиться того, вам следует подзапросом по первому предложению, потом сделать main query, чтобы его просуммировать. Попробуйте так WITH CTE AS ( SELECT a.username ,a.name ,a.description...

WebC# datatable中GROUPBY子句中的多列,c#,C#,我有一个数据表包含3列计数，内存，核心。现在我试图通过内存和内核来获得计数组的总和我正在使用以下代码： var queryG = from row in dtFilterX.AsEnumerable() group row by …

WebOct 7, 2024 · DataTable objDT1 = new DataTable (); objDT1.Columns.Add ( "ID" , typeof ( int )); objDT1.Columns.Add ( "Value" , typeof ( decimal )); objDT1.Rows.Add (1, 4.0M); … did both the north and south support slaveryWebJun 24, 2013 · Dim test2 = Table.AsEnumerable ().GroupBy (Function (row) row.Item ("Name1")).Select (Function (group) New With {.Grp = group.Key, .Sum = group.Sum (Function (r) Double.Parse (r.Item ("Time").ToString ()))}) Share Improve this answer Follow edited Jun 24, 2013 at 8:25 answered Jun 24, 2013 at 8:02 Dave Williams 2,096 19 25 … did botw 2 come outWebMar 24, 2024 · C# Datatable group, select and sum. 0. How to group datatable by unknown column names and calculate sum of one field? Hot Network Questions Should I (still) use UTC for all my servers? Implement grambulation Getting a temporary processing output file path for usage in QGIS Did Jesus commit the HOLY spirit in to the hands of … did both thieves mock jesus on the crossWeb1 Answer Sorted by: 44 That's pretty easy - just use the Sum extension method on the group. var groupedData = from b in dataTable.AsEnumerable () group b by b.Field ("chargetag") into g select new { ChargeTag = g.Key, Count = g.Count (), ChargeSum = g.Sum (x => x.Field ("charge")) }; city in fulton county gaWebMay 13, 2013 · The following code works on each IGrouping in the select portion to get your aggregate operations working correctly. var results = from line in Lines group line by line.ProductCode into g select new ResultLine { ProductName = g.First ().Name, Price = g.Sum (pc => pc.Price).ToString (), Quantity = g.Count ().ToString (), }; Share did boudicca have any siblingsWebOct 7, 2024 · I first sorted datatable based on the Id.. then i copied those rows having same Id to having same id to a DataRow [] by runnig Dttable.Select ("Query") and then i run a foreach loop through the DataRow [] to Compute the Sum... Marked as answer by Anonymous Thursday, October 7, 2024 12:00 AM Wednesday, June 23, 2010 2:57 AM … did boudicca poison herself did both wachowski brothers become women