GetChildRows Method (DataRelation)

DataRow.GetChildRows Method (DataRelation)


Gets the child rows of this DataRow using the specified DataRelation.

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

public DataRow[] GetChildRows(
	DataRelation relation


Type: System.Data.DataRelation

The DataRelation to use.

Return Value

Type: System.Data.DataRow[]

An array of DataRow objects or an array of length zero.

Exception Condition

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


The relation is null.


The row does not belong to the table.


The row does not have this version of data.

The DataTable also contains a collection of DataRelation objects that is returned by the ChildRelations property.

The following example uses the GetChildRows to return the child DataRow objects for every child DataRelation in a DataTable. The value of each column in the row is then printed.

private void GetChildRowsFromDataRelation(DataTable table) 
    DataRow[] arrRows;  
    foreach(DataRelation relation in table.ChildRelations)
        foreach(DataRow row in table.Rows)
            arrRows = row.GetChildRows(relation);
            // Print values of rows.
            for(int i = 0; i < arrRows.Length; i++)
                foreach(DataColumn column in table.Columns)

.NET Framework
Available since 1.1
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