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DataRow.GetParentRow Method (String, DataRowVersion)

Gets the parent row of a DataRow using the specified RelationName of a DataRelation, and DataRowVersion.

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

public DataRow GetParentRow(
	string relationName,
	DataRowVersion version
)

Parameters

relationName
Type: System.String

The RelationName of a DataRelation.

version
Type: System.Data.DataRowVersion

One of the DataRowVersion values.

Return Value

Type: System.Data.DataRow
The parent DataRow of the current row.

ExceptionCondition
ArgumentException

The relation and row do not belong to the same table.

ArgumentNullException

The relation is null.

DataException

A child row has multiple parents.

RowNotInTableException

The row does not belong to the table.

VersionNotFoundException

The row does not have the requested DataRowVersion.

In a DataSet, the collection of all parent DataRelation objects for the data set is returned by the GetParentRows method.

The DataTable also contains a collection of DataRelation objects, returned by the ParentRelations property.

Use the HasVersion property to determine whether the DataRowVersion that you want exists.

The following example uses the GetParentRow to print a value from each parent row of each DataRow in a DataTable.

private void GetParentRowForTable(DataTable thisTable, 
    string relation, DataRowVersion version)
{
    if(thisTable ==null){return;}
    // For each row in the table, print column 1  
    // of the parent DataRow.
    DataRow parentRow;
    foreach(DataRow row in thisTable.Rows)
    {
        parentRow = row.GetParentRow(relation, version);
        Console.Write("\t child row: " + row[1]);
        Console.Write("\t parent row: " + parentRow[1]+ "\n");
    }
}

private void CallGetParentRowForTable()
{
    // An example of calling the function.
    DataTable thisTable = DataSet1.Tables["Products"];
    DataRelation relation = thisTable.ParentRelations[0];

    // Print only original versions of parent rows.
    GetParentRowForTable(thisTable, relation.RelationName,
        DataRowVersion.Original);
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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