I'm going to bootstrap this question with a previous one I asked:
LINQ to SQL: Multiple joins ON multiple Columns. Is this possible?
So I have a LINQ query:
var query =
from t1 in myTABLE1List // List<TABLE_1>
join t2 in myTABLE1List
on new { t1.ColumnA, t1.ColumnB } equals new { t2.ColumnA, t2.ColumnB }
join t3 in myTABLE1List
on new { t2.ColumnA, t2.ColumnB } equals new { t3.ColumnA, t3.ColumnB }
select new {t1.ColumnA, t2.ColumnA, t3.ColumnA } // Duplicate Anon type 'ColumnA'
How can I resolve this?
With explicit naming of the properties of the anonymous type
select new {t1A = t1.ColumnA, t2A = t2.ColumnA, t3A = t3.ColumnA }
来源:https://stackoverflow.com/questions/5309507/linq-to-sql-how-to-handle-ambiguous-column-names-when-joining-tables