为什么当我选择从数据库更新.edmx文件时，为什么Model.tt类不会得到更新

Question

i am working on an asp.net mvc-4 web application . and i am using Entity Framework 5. where i mapped my database tables using EF.

now i use to have the following model class inside my .tt folder:-

public partial class CustomAsset
    {
        public string CustomerName { get; set; }
        public int CustomTypeID { get; set; }
        public string Description { get; set; }
        public int ID { get; set; }
        public int Quantity { get; set; }


        public virtual CustomAssetType CustomAssetType { get; set; }

    }

now inside my DB table named "customAsset" i remove the CustomerName column. and i added two columns one of them is a foreign key to another table. then i open my .edmx file i right-click , then i chose to update model from database, where i select the realted table and click on update. now the model inside the .edmx file got the new columns/relation correctly as follow:-

but my related .tt class is still referencing the old columns. i was expecting my .tt model class to be as follow:-

public partial class CustomAsset
    {
        //public string CustomerName { get; set; }
        public int CustomTypeID { get; set; }
        public string Description { get; set; }
        public int ID { get; set; }
        public int Quantity { get; set; }
        public int? CustomerID { get; set; }
        public int? RackID { get; set; }

        public virtual CustomAssetType CustomAssetType { get; set; }
        public virtual Rack Rack { get; set; }
    }

so not sure how i can force my .tt classes to get updated , when i update the .edmx file ? and is there any problem if i manually modify the related .tt classes to get the new columns/ relation ?

Answer 1

1.Build the project after updating EDMX file.

2.Right click your .tt file in solution explorer.

3.Select "Run Custom Tool" option.

This will update the .tt file.