Relations Eigenschaft (IDataProvider)

In diesem Thema

Diese Eigenschaft wird abgefragt um alle verfügbaren Relationen zwischen den Tabellen des Datenproviders zu erhalten.

Syntax

Visual Basic
C#
C++/CLI

'Deklaration
 
ReadOnly Property Relations As ReadOnlyCollection(Of ITableRelation)

ReadOnlyCollection<ITableRelation> Relations {get;}

property ReadOnlyCollection<ITableRelation^>^ Relations {
   ReadOnlyCollection<ITableRelation^>^ get();
}

Beispiele

C#
VB.NET

List<ITableRelation> _relations;
ReadOnlyCollection<ITableRelation> Relations
{
    get
    {
        if (_relations == null)
        {
            _relations = new List<ITableRelation>();
            foreach (DataRelation dr in _dataViewManager.DataSet.Relations)
            {
                _relations.Add(new DataRelationWrapper(dr));
            }
        }
        return _relations.AsReadOnly();
    }
}

Private _relations As List(Of ITableRelation)
Readonly Property Relations() As ReadOnlyCollection(Of ITableRelation)
    Get
        If _relations = Nothing Then
            _relations = New List(Of ITableRelation)()
            For Each dr As DataRelation In _dataViewManager.DataSet.Relations
                _relations.Add(New DataRelationWrapper(dr))
            Next
        End If
        Return _relations.AsReadOnly()
    End Get
End Property

Anforderungen

Plattformen: Windows 10 (Version 21H2 - 22H2), Windows 11 (21H2 - 23H2), Windows Server 2016 - 2022
.NET: .NET Framework 4.8, .NET 6, .NET 7, .NET 8

Siehe auch

Referenz

IDataProvider Schnittstelle
IDataProvider Member

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