Search results
You may use the Microsoft KB article HOW TO: Implement a DataSet GROUP BY Helper Class in Visual C# .NET. If you are using .NET 3.5 you may use Linq ref : LINQ DataTable Query - Group Aggregation
29 mar 2013 · public DataTable GroupBy(string i_sGroupByColumn, string i_sAggregateColumn, DataTable i_dSourceTable) { DataView dv = new DataView(i_dSourceTable); //getting distinct values for group column DataTable dtGroup = dv.ToTable(true, new string[] { i_sGroupByColumn }); //adding column for the row count dtGroup.Columns.Add("Count", typeof(int ...
The GroupBy Method groups elements that share a common attribute, allowing us to perform operations on each group. This method is especially useful for aggregating data, performing calculations on subsets of data, and organizing data into a more manageable format.
5 lip 2023 · The group, by, and into keywords are used to group data in LINQ. It is possible to group data by: a single key; an attribute; a compound key; a computed numeric range; an expression. C# LINQ group by a key. We can group data into categories based on a certain key.
18 gru 2007 · A SQL GROUP BY clause allows you to group records by particular fields, so the entire group can be dealt with at once. A LINQ statement can have a Group By clause as well, but with different syntax.
31 maj 2024 · Grouping is one of the most powerful capabilities of LINQ. The following examples show how to group data in various ways: By a single property. By the first letter of a string property. By a computed numeric range. By Boolean predicate or other expression. By a compound key.
28 paź 2020 · This article presents how you can export data from a SQL Server table to an Excel file. Exporting data from a SQL Server table to Excel is a pretty common practice. There are several ways this can be done, but in this article, we will cover how this can be done using C# code.
