EnumerableRowCollectionExtensions.Where<TRow> Method

Reference

Definition

Namespace:: System.Data

Assemblies:: netstandard.dll, System.Data.Common.dll

Assemblies:: netstandard.dll, System.Data.Common.dll, System.Data.DataSetExtensions.dll

Assemblies:: System.Data.Common.dll, System.Data.DataSetExtensions.dll

Assembly:: System.Data.Common.dll

Assembly:: System.Data.DataSetExtensions.dll

Assembly:: netstandard.dll

Package:: System.Data.DataSetExtensions v4.6.0-preview3.19128.7

Source:: EnumerableRowCollectionExtensions.cs

Source:: EnumerableRowCollectionExtensions.cs

Source:: EnumerableRowCollectionExtensions.cs

Important

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Filters a sequence of rows based on the specified predicate.

This API supports the product infrastructure and is not intended to be used directly from your code.

public:
generic <typename TRow>
[System::Runtime::CompilerServices::Extension]
 static System::Data::EnumerableRowCollection<TRow> ^ Where(System::Data::EnumerableRowCollection<TRow> ^ source, Func<TRow, bool> ^ predicate);

public static System.Data.EnumerableRowCollection<TRow> Where<TRow>(this System.Data.EnumerableRowCollection<TRow> source, Func<TRow,bool> predicate);

static member Where : System.Data.EnumerableRowCollection<'Row> * Func<'Row, bool> -> System.Data.EnumerableRowCollection<'Row>

<Extension()>
Public Function Where(Of TRow) (source As EnumerableRowCollection(Of TRow), predicate As Func(Of TRow, Boolean)) As EnumerableRowCollection(Of TRow)

Type Parameters

TRow

The type of the row elements in source, typically DataRow.

Parameters

source: EnumerableRowCollection<TRow>

An EnumerableRowCollection containing the DataRow elements to filter.

predicate: Func<TRow,Boolean>

A function to test each element for a condition.

Returns

EnumerableRowCollection<TRow>

An OrderedEnumerableRowCollection<TRow> that contains rows from the input sequence that satisfy the condition.

Remarks

This method is implemented by using deferred execution. The immediate return value is an object that stores all the information that is required to perform the action. The query represented by this method is not executed until the object is enumerated either by calling its GetEnumerator method directly or by using foreach in Visual C# or For Each in Visual Basic.

Applies to

Termék	Verziók
.NET	Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	2.0 (package-provided), 2.1

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