[Mono-devel-list] [PATCH] bug in System.Data.DataRelation.Add(...)

[eran]

Hi,
I think I found a bug in
System.Data.ForeignKeyConstraint._ensureUniqueConstraintExists(Constrain
tCollection collection, DataColumn [] parentColumns)
 
Steps to reproduce the problem:
1.	create a DataSet. Add a DataTable to the DataSet. Add some
columns to the table. Set a PrimaryKey to the table.
2.	create a second DataTable. Add some columns to the table. Add
the table to the DataSet.
3.	Add a relation to the DataSet where the parent column is the
primary key of the first table and the child is a column from the second
table.
 
Actual Result:
An exception is thrown - UniqueConstraint already exists.
 
Expected Result:
The relation should be added to the DataSet.
 
Enclosed is a small test and a patch.
 
Thanks
Eran Domb
 
 
 
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