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DataRelation between two comboboxes

I need help with the following problem.
I created a datarelation
DataRelation oRelation = new
DataRelation("plz_relation",odsAdressenDS.v_plz.pl z_idColumn,
odsAdressenDS.v_poststelle.plz_idColumn);
odsAdressenDS.Relations.Add(oRelation);

I know want to add this relation to two comboboxes
cbxPlz.DataSource = odsAdressenDS.Relations["plz_relation"].ParentTable;

cbxPlz.ValueMember = "plz_id";

cbxPlz.DisplayMember = "plz_nr";

//ortschaft --> Setze Datenverbindung als Quelle

cbxOrt.DataSource = odsAdressenDS.Relations["plz_relation"].ChildTable;

cbxOrt.DisplayMember = "poststelle";

cbxOrt.ValueMember = "plz_id";

The values appears but when i change one of the indexes nothing happens.
What do I wrong???

Tnx
Stefan
Nov 15 '05 #1
0 1122

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