DataRelationCollection.AddRange(DataRelation[]) Metode

Definisi

Ruang nama:

System.Data

Rakitan:

System.Data.Common.dll

Sumber:

DataRelationCollection.cs

Menyalin elemen array yang ditentukan DataRelation ke akhir koleksi.

public:
 virtual void AddRange(cli::array <System::Data::DataRelation ^> ^ relations);

public virtual void AddRange (System.Data.DataRelation[]? relations);

abstract member AddRange : System.Data.DataRelation[] -> unit
override this.AddRange : System.Data.DataRelation[] -> unit

Public Overridable Sub AddRange (relations As DataRelation())

Parameter

relations

DataRelation[]

Array DataRelation objek yang akan ditambahkan ke koleksi.

Contoh

public static void AddRelations(DataSet dataSet)
{
    DataRelation customerOrders =
        new DataRelation("CustomerOrders",
        dataSet.Tables["Customers"].Columns["customerId"],
        dataSet.Tables["Orders"].Columns["customerId"]);

    DataRelation orderDetails =
        new DataRelation("OrderDetail",
        dataSet.Tables["Orders"].Columns["orderId"],
        dataSet.Tables["OrderDetails"].Columns["orderId"]);

    dataSet.Relations.AddRange(new DataRelation[]
        {customerOrders, orderDetails});

    // Display names of all relations.
    foreach (DataRelation relation in dataSet.Relations)
        Console.WriteLine(relation.RelationName.ToString());
}

Public Shared Sub AddRelations(dataSet As DataSet)
    Dim customerOrders As New DataRelation("CustomerOrders", _
        dataSet.Tables("Customers").Columns("customerId"), _
        dataSet.Tables("Orders").Columns("customerId"))
    Dim orderDetails As New DataRelation("OrderDetail", _
        dataSet.Tables("Orders").Columns("orderId"), _
        dataSet.Tables("OrderDetails").Columns("orderId"))

    dataSet.Relations.AddRange(New DataRelation() _
        {customerOrders, orderDetails})

    ' Display names of all relations.
    Dim relation As DataRelation
    For Each relation In dataSet.Relations
        Console.WriteLine(relation.RelationName.ToString())
    Next
End Sub

Keterangan

Jika BeginInit telah dipanggil, AddRange jangan tambahkan objek apa pun ke koleksi hingga EndInit dipanggil. Pada saat dipanggil EndInit , koleksi akan diisi dengan item yang ditentukan dalam panggilan terbaru ke AddRange. Jika AddRange dipanggil beberapa kali dalam BeginInit / EndInit urutan, hanya item yang ditentukan dalam panggilan terbaru yang AddRange ditambahkan.

Lihat juga

• Menambahkan DataRelations
• Menavigasi DataRelations