Entity Framework Foreign Key Table isn't saving changes made to its BindingSource
I have two tables:
CREATE TABLE `Vehicles` (
`ID` int(10) unsigned NOT NULL AUTO_INCREMENT,
... Other columns
PRIMARY KEY (`ID`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=latin1
And:
CREATE TABLE `VehicleOptions` (
`ID` int(10) unsigned NOT NULL AUTO_INCREMENT,
`VehicleID` int(10) unsigned NOT NULL,
... Other columns
PRIMARY KEY (`ID`),
KEY `FK_Vehicles_to_VehicleOptions` (`VehicleID`),
CONSTRAINT `FK_Vehicles_to_VehicleOptions` FOREIGN KEY (`VehicleID`) REFERENCES `vehicles` (`ID`) ON DELETE CASCADE ON UPDATE NO ACTION
) ENGINE=InnoDB DEFAULT CHARSET=latin1
Here is a picture of the Data Objects:
I drag and dropped Vehicle and VehicleOptions onto my form. I then load the databse using a LINQ query:
var dataSource = from v in Database.DataContext.Vehicles.Include("VehicleOptions")
orderby v.Stock descending
select v;
// The vehicles BindingSource
bsVehicles.DataSource = dataSource;
// The vehicleoptions BindingSource
bsVehicleOptions.DataSource = bsVehicles;
bsVehicleOptions.DataMember = "VehicleOptions";
Whenever I add/edit data on my form I call:
bsVehicles.SuspendBinding();
bsVehicleOptions.SuspendBinding();
Database.DataContext.SaveChanges();
bsVehicleOpt开发者_开发技巧ions.ResumeBinding();
bsVehicles.ResumeBinding();
The changes made to bsVehicles
are saved in my MySQL database but the changes made to bsVehicleOptions
are not. Even on the form, the Controls bound to bsVehicleOptions
empty their data on Database.DataContext.SaveChanges();
Am I missing something here?
Note: I am using the Entity Framework V4 (I've hear the Associations in older versions were funky?).
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