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DataTable.ParentRelations Property

Gets the collection of parent relations for this DataTable.

Namespace: System.Data
Assembly: System.Data (in system.data.dll)

public DataRelationCollection ParentRelations { get; 
/** @property */
public DataRelationCollection get_ParentRelations ()

public function get ParentRelations () : DataRelationCollection

Property Value

A DataRelationCollection that contains the parent relations for the table. An empty collection is returned if no DataRelation objects exist.

The following example uses the ParentRelations property to return each parent DataRelation in a DataTable. Each relation is then used as an argument in the GetParentRows method of the DataRow to return an array of rows. 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]);
                
            
        
    


Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0
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