Question

In Linqtosql how do I show items from multiple rows in a single field.

eg I have a 3 table setup for tagging(entity, tag, entitytag) all linked via foreign keys.

For each entity I would like to return the name in one field and then all relevant tags in 2nd field.

eg Item1, tag1; tag2; tag3 Item2, tag4, tag5….

VB statements preferred.

Thanks Geoff

Answer 1

Okay, not sure if this is the most efficient way but it works.

Dim dc As New DataContext  Dim query = From i In dc.Items _             Let tags = (From t In dc.ItemTags _                         Where t.ItemID = i.ID _                         Select t.Tag.Name).ToArray _             Select i.ItemName, Tags = String.Join(' | ', tags)