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 ); … 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 …
c# - How to sum values for multiple columns in DataTable using Groupby ...
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 … WebMay 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 change bitlocker code
linq - C# Datatable group, select and sum - Stack Overflow
WebJun 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 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: WebSelect and sum DataTable rows with criteria. datatable sum column and concatenate rows using LINQ and group by on multiple columns. Group objects by a series of common … change bitlocker key