These are the properties, methods, or activities that enable the developer to obtain a subset of data from a data table called "dt":
Filter Data Table activity: This activity enables you to filter a data table by specifying conditions in the Filter Wizard. You can choose to keep or remove rows that match the filter criteria. You can also specify the columns to include or exclude in the output data table1.
dt.Select method: This method returns an array of data rows that match a specified filter expression. You can use this method to query a data table using SQL-like syntax2.
dt.AsEnumerable().Where method: This method returns an enumerable collection of data rows that satisfy a given predicate. You can use this method to query a data table using LINQ syntax3.
References:
1: Filter Data Table
2: DataTable.Select Method
3: Enumerable.Where Method