public void bug79233()
{
DataSet ds = new DataSet();
DataTable dtChild = DataProvider.CreateChildDataTable();
DataTable dtParent = DataProvider.CreateParentDataTable();
ds.Tables.Add(dtParent);
ds.Tables.Add(dtChild);
dtParent.Rows.Clear();
dtChild.Rows.Clear();
DataRelation dr = dtParent.ChildRelations.Add(dtParent.Columns[0], dtChild.Columns[0]);
Assert.Equal("Relation1", dr.RelationName);
dr = dtChild.ChildRelations.Add(dtChild.Columns[0], dtParent.Columns[0]);
Assert.Equal("Relation2", dr.RelationName);
}