Linq union usage?

Question

Sql:

SELECT date,total_usage_T1 as TotalUsageValue,\'T1\' as UsageType FROM TblSayacOkumalari
UNION ALL
SELECT date,total_usage_T2 as TotalU         


        

Answer 1

Use this:

var result = entity.TblSayacOkumalari 
                   .Select(x => new  
                   { 
                       Date = x.date, 
                       TotalUsage = x.total_usage_T1,
                       UsageType = "T1"
                   }) 
                   .Union(entity.TblSayacOkumalari.Select(x => new  
                   { 
                       Date = x.date, 
                       TotalUsage = x.total_usage_T2,
                       UsageType = "T2"
                   }));