I attempted to utilize a function I had written to accept an Expression as input for the orderby clause, but I encountered this issue....Unable to cast the type
'System.DateTime' to type
'System.IComparable'. LINQ to Entities
only supports casting Entity Data
Model primitive types....Basically, the phrase is as follows:...Expression<Func<K,...
I have two classes with all virtual attributes and I'm using DBContext. When I query the context, I can see in the debugger that I am receiving a proxy object. When I attempt to add to a collection property, it remains null. I believed the proxy would guarantee collection initialization....Since my Poco object might be used outside of its data cont...
To fix your issue, you can reset the entity framework [...But bear in mind that it will reset the Migration to its initial state....]....Take a backup before doing the following, please...You must remove the current state....Delete the project's migrations folder....Delete the database table __MigrationHistory (may be under system tables)...The __M...
Why does this premise hold up:...var rooms = from m in db.Rooms
m.FK_HotelID == id
...yet this query (which I created using a tool called "Linqer") seems to be unsuccessful?...var rooms = from m in db.Rooms
Currently, the EF6 tools are version 6.1.3, the ...6.2.0 is the latest EF6 runtime.... (as of writing on 2018-04-23)....Where are the EF 6.2 tools for Visual Studio?...We decided that we still needed to complete some work on the tools
before we could declare them â€œfinalâ€. However, it did not make sense
to delay the release of the runtime pa...