DataTable.ParentRelations DataTable.ParentRelations DataTable.ParentRelations DataTable.ParentRelations Property

정의

DataTable에 대한 부모 관계 컬렉션을 가져옵니다.Gets the collection of parent relations for this DataTable.

public:
 property System::Data::DataRelationCollection ^ ParentRelations { System::Data::DataRelationCollection ^ get(); };
[System.ComponentModel.Browsable(false)]
[System.Data.DataSysDescription("DataTableParentRelationsDescr")]
public System.Data.DataRelationCollection ParentRelations { get; }
member this.ParentRelations : System.Data.DataRelationCollection
Public ReadOnly Property ParentRelations As DataRelationCollection

속성 값

테이블의 부모 관계가 포함된 DataRelationCollection입니다.A DataRelationCollection that contains the parent relations for the table. DataRelation 개체가 없으면 빈 컬렉션이 반환됩니다.An empty collection is returned if no DataRelation objects exist.

예제

다음 예제에서는 합니다 ParentRelations 각 부모를 반환 하도록 속성 DataRelationDataTable합니다.The following example uses the ParentRelations property to return each parent DataRelation in a DataTable. 각 관계에 대 한 인수로 사용 됩니다는 GetParentRows 메서드는 DataRow 행의 배열을 반환 하도록 합니다.Each relation is then used as an argument in the GetParentRows method of the DataRow to return an array of rows. 행의 각 열 값이 출력 합니다.The value of each column in the row is then printed.

private void GetChildRowsFromDataRelation(DataTable table)
{
    DataRow[] rowArray;
    foreach(DataRelation relation in table.ParentRelations)
    {
        foreach(DataRow row in table.Rows)
        {
            rowArray = row.GetParentRows(relation);
            // Print values of rows.
            for(int i = 0; i < rowArray.Length; i++)
            {
                foreach(DataColumn column in table.Columns)
                {
                    Console.WriteLine(rowArray[i][column]);
                }
            }
        }
    }
}
Private Sub GetChildRowsFromDataRelation(table As DataTable)
    Dim rowArray() As DataRow
    Dim relation As DataRelation, row As DataRow
    Dim column As DataColumn, i As Integer     
    For Each relation In  table.ParentRelations
        For Each row In  table.Rows
            rowArray = row.GetParentRows(relation)
            ' Print values of rows.             
            For i = 0 To rowArray.Length - 1                 
                For Each column In  table.Columns
                    Console.WriteLine(rowArray(i)(column))
                Next column
            Next i
        Next row
    Next relation
End Sub

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