DataRow::GetParentRow Method (DataRelation^, DataRowVersion)
Gets the parent row of a DataRow using the specified DataRelation, and DataRowVersion.
Assembly: System.Data (in System.Data.dll)
Parameters
- relation
-
Type:
System.Data::DataRelation^
The DataRelation to use.
- version
-
Type:
System.Data::DataRowVersion
One of the DataRowVersion values specifying the version of the data to get.
| Exception | Condition |
|---|---|
| ArgumentNullException | The row is null. The relation does not belong to this table's parent relations. |
| DataException | A child row has multiple parents. |
| InvalidConstraintException | The relation's child table is not the table the row belongs to. |
| RowNotInTableException | The row does not belong to a table. |
| VersionNotFoundException | The row does not have this version of data. |
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 return the child DataRow objects for every child DataRelation in a DataTable. The value of each column in the row is then printed.
Available since 1.1