问实体框架6-在事务中保存数据

EN

using (var context = new SomeContext()) 
{ 
    using (var dbContextTransaction = context.Database.BeginTransaction()) 
    { 
        try 
        { //Create the record to be saved
            var product = new Product{ // set the data}
            var newProductId = context.SaveChanges(); 

            //Update the Mapping Table
            var anotherData = context.AnotherTable.where(x => x.id = anotherId).FirstOrDefault();
            var productData = context.Product.where(x => x.id = newProductId).FirstOrDefault();

          //Create the Mapping Table record  
          productData.AnotherDatas.Add(anotherData);
          context.SavceChanges();

          dbContextTransaction.Commit(); 
        } 
        catch (Exception) 
        { 
            dbContextTransaction.Rollback(); 
        } 
    } 
} 

var productData = context.Product.where(x => x.id = newProductId).FirstOrDefault();