Hello friends.

I have a quite peculiar problem.

I would like to have a combobox that showed values of a field (key primary of a table) and besides I would like to record this value in another different field of a diferent table (that it would be foreign key). I know that with ADO this fact was possible if you used the properties BoundColumn and BoundText of the DataCombo control, but with ComboBox control of VisualBasic.NET I cant.

I have filled up the DataSet with the two tables, Ive even established its relation, and Ive assigned the DataSet to the DataSource property of ComboBox control. Ive also assigned the name of the column that I want to the ValueMember property (like this: mydataset.Tables(0).Columns("mycolumn").tostring) and ive assigned the name of the other column of the other table to the DisplayMember property, in the same way. But the program sends a generic exception to me that does not help me much:"Cannot bind to the new display member.
Parameter name: newDisplayMember".

If you can help me I would be tremendously thankful .

Thank you very much!