A Simple Question on Relationships

Posted on 2006-06-28
Medium Priority
Last Modified: 2012-06-22
I have two tables tblA and tblB.Both tables contain field "Name" but when i tried to add foreign
key relationships between them as

 Dim fk As New ForeignKeyConstraint(ds.Tables("tblA").Columns("Name"), ds.Tables("tblB").Columns("Name"))
        fk.AcceptRejectRule = AcceptRejectRule.Cascade
        fk.DeleteRule = Rule.Cascade
        fk.UpdateRule = Rule.Cascade
        ds.EnforceConstraints = True
It produces an error message as
"This constraint cannot be added since ForeignKey doesn't belong to table tblA".

Any hints?
Question by:biplavo
LVL 34

Accepted Solution

Sancler earned 240 total points
ID: 17000577
This line


should be


Have a look at this


In the terms used in the example in that, tblA.Name is the parent and tblB.Name is the child, and the constraint should be added to the child table, not the parent table.


Author Comment

ID: 17065189
Thanks Sancler.

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