The specified type member Date is not supported in LINQ to Entities Only initializers entity members and entity navigation properties

Question

Using this code in Entity Framework I receive the following error  I need to get all the rows for a specific date  DateTimeStart is of type DataType in this format 2013-01-30 12 00 00 000  Code    var eventsCustom   eventCustomRepository FindAllEventsCustomByUniqueStudentReference userDevice UniqueStudentReference                       Where x   gt   x DateTimeStart Date    currentDateTime Date       Error      base  System SystemException      The specified type member  Date  is   not supported in LINQ to Entities  Only initializers  entity members    and entity navigation properties are supported      Any ideas how to fix it

User · Accepted Answer

DateTime Date cannot be converted to SQL  Use EntityFunctions TruncateTime method to get date part   var eventsCustom   eventCustomRepository  FindAllEventsCustomByUniqueStudentReference userDevice UniqueStudentReference   Where x   gt  EntityFunctions TruncateTime x DateTimeStart     currentDate Date     UPDATE  As  shankbond mentioned in comments  in Entity Framework 6 EntityFunctions is obsolete  and you should use DbFunctions class  which is shipped with Entity Framework

User · Answer

Use the bellow code for using EF6    DbFunctions TruncateTime x User LeaveDate Value

User · Answer

EntityFunctions is obsolete  Consider using DbFunctions instead   var eventsCustom   eventCustomRepository FindAllEventsCustomByUniqueStudentReference userDevice UniqueStudentReference      Where x   gt  DbFunctions TruncateTime x DateTimeStart     currentDate Date

User · Answer

Always use EntityFunctions TruncateTime   for  both x DateTimeStart and currentDate  such as    var eventsCustom   eventCustomRepository FindAllEventsCustomByUniqueStudentReference userDevice UniqueStudentReference  Where x   gt  EntityFunctions TruncateTime x DateTimeStart     EntityFunctions TruncateTime currentDate

User · Answer

Another solution could be   var eventsCustom   eventCustomRepository FindAllEventsCustomByUniqueStudentReference userDevice UniqueStudentReference  AsEnumerable       Where x   gt  x DateTimeStart Date    currentDate Date  AsQueryable

User · Answer

Just use simple properties   var tomorrow   currentDateTime Date   1    var eventsCustom   eventCustomRepository FindAllEventsCustomByUniqueStudentReference userDevice UniqueStudentReference                               Where x   gt   x DateTimeStart  gt   currentDateTime Date                                     and x DateTimeStart  lt  tomorrow     If future dates are not possible in your app  then    x DateTimeStart    currentDateTime Date is sufficient   if you have more complex date comparisons  then check Canonical functions and if you have EF6  DB functions  More Generally - For people searching for issues Supported Linq methods in EF can explain similar issues with linq statements that work on Memory base Lists but not in EF

User · Answer

I have the same issue with Entity Framework 6 1 3 But with different scenario  My model property is of type nullable DateTime DateTime  CreatedDate   get  set     So I need to query on today s date to check all the record  so this what works for me  Which means I need to truncate both records to get the proper query on DbContext  Where w   gt  DbFunctions TruncateTime w CreatedDate     DbFunctions TruncateTime DateTime Now

User · Answer

Simplified   DateTime time   System DateTime Now  ModelName m   context TableName Where x  gt  DbFunctions TruncateTime x Date     time Date   FirstOrDefault

User · Answer

You should now use DbFunctions TruncateTime  var anyCalls    db CallLogs Where r   gt  DbFunctions TruncateTime r DateTime     callDateTime Date  ToList

User · Answer

I would like to add a solution  that have helpt me to solve this problem in entity framework   var eventsCustom   eventCustomRepository FindAllEventsCustomByUniqueStudentReference userDevice UniqueStudentReference                   Where x   gt   x DateTimeStart Year    currentDateTime Year  amp  amp                               x DateTimeStart Month   currentDateTime Month  amp  amp                               x DateTimeStart Day    currentDateTime Day          I hope that it helps

[linq] The specified type member 'Date' is not supported in LINQ to Entities. Only initializers, entity members, and entity navigation properties

Examples related to linq

Examples related to entity-framework-4

Examples related to linq-to-entities