Group by sum datatable c#
WebJun 20, 2024 · DataTable dt = GetDataTableFromExcel (); List dts = dt.AsEnumerable () .GroupBy (row => row.Field< string > ( "OUTLET NAME " )) .Select (g => g.CopyToDataTable ()).ToList (); As it is selecting based on Outlet name, here i want to select based another column too using C# with Linq query. I tried like this but not working. WebJun 27, 2008 · 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 …
Group by sum datatable c#
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WebOct 29, 2024 · @jamnanin. I will suggest you one more way try like this. Let us take your excel stored in a datatable dta. First group the datatable based on ID by using below … WebDec 14, 2015 · In that case all you need (assuming your C# entities maps 1:1 with DB columns): var result = db.GroupBy (x => x.Type) .Select (x => new { Type = x.Key, Count = x.Sum (y => y.Count) }); Share Improve this answer edited Dec 16, 2015 at 7:36 answered Dec 14, 2015 at 16:20 Adriano Repetti 10.4k 1 21 46 I'm open to database changes as well
WebJun 24, 2013 · Select New With { .Grp = groupDt, .Sum = Group.Sum(Function(r) Double.Parse(r.Item("Time").ToString())) } OR you can use fluent syntax: Dim test2 = … WebApr 9, 2024 · C#中DataTable实现筛选备忘 1. 直接循环遍历获取 2. 使用LinQ 3. 利用DataView的RowFilter 实现筛选 C#中DataTable实现筛选备忘 说明: DataTable进行过滤筛选,常用的一些方法为:Select,dataview 1 2 1. 直接循环遍历获取 // 假设dt是由"SELECT C1,C2,C3 FROM T1"查询出来的结果 DataTable dt = new DataTable(); for (int i = 0; i < …
WebJan 25, 2024 · As you can see in the code, in the DataTable compute method we used the SUM (Price) as we want a subtotal of the product price. You can also see that we also used a filter parameter, as we want … WebDec 14, 2024 · Step 1- From DataTable1, get columnName where colGroup is YES or OK Step 2- Query DataTable2, and group by on columns returned from DataTable1 (Step1) What I have tried: C#
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 ...
WebJun 20, 2024 · DataTable dt = GetDataTableFromExcel (); List dts = dt.AsEnumerable () .GroupBy (row => row.Field< string > ( "OUTLET NAME " )) .Select … fil tw1WebOct 7, 2024 · DataTable table = new DataTable (); table.Columns.Add ("ID", typeof (string)); table.Columns.Add ("Percentage", typeof (int)); table.Rows.Add ("1", 50); … fil twisted messesWebOct 29, 2024 · @jamnanin. I will suggest you one more way try like this. Let us take your excel stored in a datatable dta. First group the datatable based on ID by using below Query and assign it to dt1 dt1=(From p In dta.Select() gruen day night watchhttp://duoduokou.com/csharp/40874523111395779149.html gruene barks and recWebMar 8, 2024 · var objectTable = new DataTable(); objectTable.Columns.Add("resource_name", typeof(string)); objectTable.Columns.Add("day_date", typeof(DateTime)); objectTable.Columns.Add("actual_hrs", typeof(decimal)); objectTable.Rows.Add(1, … gruenberg matthew goodwinWebJul 17, 2024 · Getting a table from DB into DataTable object. 2. Using the Select method of the DataTable I get a DataRow collection with two fields one is a Warehouse Key the other the number of products delivered to the Wraehouse over time Something like this - ... where the group by is the data column name, and do a DESC order by or grade data column. … filtwamWebFeb 25, 2016 · The data table itself will not provide you with group by operation some extent it will be better if you use LINQ on Data table to accomplish your solution. Look at … fil tweed