c# - Entities' does not contain a constructor that takes 1 arguments -
public class connection { public static string getconecction() { return configurationmanager.connectionstrings["dcassetentities"].connectionstring; } }
i have 1 "connection" class configure web entity framework model entities
public class connectiondal { private dcassetentities db; public connectiondal() { db = new dcassetentities(connection.getconecction()); } }
then intialize database in "connectiondal" class constructor,, it's working in visusal studio 2010 in visusal studio 2012 showing error "dc_asset_maintenance.dal.dcassetentities' not contain constructor takes 1 arguments "
your class dcassetentities
needs have constructor following definition.
public dcassetentities(string connectionstring){}
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