DataRelationCollection.AddRange(DataRelation[]) 方法

定義

命名空間:

System.Data

組件:

System.Data.Common.dll

來源:

DataRelationCollection.cs

將指定的 DataRelation 陣列元素複製到集合的末端。

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())

參數

relations

DataRelation[]

要加入至集合的 DataRelation 物件陣列。

範例

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

備註

如果 BeginInit 已呼叫， AddRange 在呼叫 之前 EndInit ，不會將任何物件加入集合中。 在呼叫 時 EndInit ，集合會填入最近呼叫 AddRange中所指定的專案。 如果在AddRange序列內EndInitBeginInit / 多次呼叫，則只會新增最近呼叫 AddRange 中所指定的專案。

另請參閱

• 加入 DataRelation
• 導覽 DataRelation