DataSource Controls :: Inserting Foreign Key Value If It Doesn't Exist?

Sep 2, 2010

I am inserting a record and want to set the value for a foreign key but I am getting an error - I initally thought that it would insert it if it didn't exist but I must be wrong and want to confirm that I need to check all values and make a record for them if they don't exist... here's what I am trying to do - does his make sense?

var newAllPart = new Part();
newAllPart.PartNumber = partNumber;
newAllPart.Manufacturer.ManufacturerName = partManufacturer; // error here if the Manufacturer doesn't exists already
newAllPart.PartType.PartTypeName = partType;
newAllPart.Category.CategoryName = partCategory;
newAllPart.DateCreated = DateTime.Now;
newAllPart.UserCreated = userCreated;
newAllPart.Package.PackageName = partPackage;
newAllPart.Statuse.StatusName = partStatus;
localDB.Parts.InsertOnSubmit(newAllPart);
localDB.SubmitChanges();

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