TypedTableBaseExtensions.Select<TRow,S> Method
Definition
Important
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Projects each element of a TypedTableBase<T> into a new form.
public:
generic <typename TRow, typename S>
where TRow : System::Data::DataRow[System::Runtime::CompilerServices::Extension]
static System::Data::EnumerableRowCollection<S> ^ Select(System::Data::TypedTableBase<TRow> ^ source, Func<TRow, S> ^ selector);public static System.Data.EnumerableRowCollection<S> Select<TRow,S> (this System.Data.TypedTableBase<TRow> source, Func<TRow,S> selector) where TRow : System.Data.DataRow;static member Select : System.Data.TypedTableBase<'Row (requires 'Row :> System.Data.DataRow)> * Func<'Row, 'S (requires 'Row :> System.Data.DataRow)> -> System.Data.EnumerableRowCollection<'S> (requires 'Row :> System.Data.DataRow)<Extension()>
Public Function Select(Of TRow As DataRow, S As DataRow) (source As TypedTableBase(Of TRow), selector As Func(Of TRow, S)) As EnumerableRowCollection(Of S)Type Parameters
- TRow
The type of the row elements in source, DataRow.
- S
Parameters
- source
- TypedTableBase<TRow>
A TypedTableBase<T> that contains the DataRow elements to invoke a transformation function upon.
- selector
- Func<TRow,S>
A transformation function to apply to each element.
Returns
An EnumerableRowCollection<TRow> whose elements are the result of invoking the transformation function on each element of source.
Remarks
This projection method requires the transformation function, selector, to produce one value for each value in the source sequence, source. If selector returns a value that is itself a collection, the consumer must traverse the sub-sequences manually.
