c# - How to get scalar value from a SQL statement in a .Net core application? -


the following code in .net core console application (ef core 2.0/sql server).

var sql = _context.set<string>()           .fromsql("select dbo.functionreturnvarchar({0});", id);

got following exception?

cannot create dbset 'string' because type not included in model context.

is way without defining class property of string?

.set<tentity>() entities backed context.

you can try workaround

dbcommand cmd = _context.database.getdbconnection().createcommand();  cmd.commandtext = "select dbo.functionreturnvarchar(@id)";      cmd.parameters.add(new sqlparameter("@id", sqldbtype.varchar) { value = id });  var value = (string) await cmd.executescalarasync();

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