如何防止Visual Studio 2012重命名成员类型（使用Entity Framework）？

Question

In Visual Studio 2012, I have a C# project using the Entity Framework (version 6.1.3).

Everytime I make modifications to the .edmx file and save them, the .cs classes under the .tt file are re-generated. The problem is that I have a table named "System" in the database (not my idea), so everytime the classes are re-generated, Visual Studio places a "System." in front of Guid and DateTime members

Sample code:

namespace ProjectName.Data
{
    using global::System;
    using global::System.Collections.Generic;

    public partial class Area
    {
        public int AreaID { get; set; }
        public int SystemID { get; set; }
        public string Code { get; set; }
        public string Name { get; set; }
        public bool Enabled { get; set; }
        public System.Guid CreatedByID { get; set; }
        public System.DateTime CreatedOn { get; set; }
    }
}

This causes compilation errors because it is looking for the Guid and DateTime members of the Entity object "System", instead of the System namespace. So everytime I make a change to the .edmx file, I have to do a Search and Replace in all files to change "System.DateTime" to "DateTime" and "System.Guid" to "Guid", to give the following:

namespace ProjectName.Data
{
    using global::System;
    using global::System.Collections.Generic;

    public partial class Area
    {
        public int AreaID { get; set; }
        public int SystemID { get; set; }
        public string Code { get; set; }
        public string Name { get; set; }
        public bool Enabled { get; set; }
        public Guid CreatedByID { get; set; }
        public DateTime CreatedOn { get; set; }
    }
}

Is there an option somewhere in Visual Studio or some way to configure that changing the .edmx file doesn't add those "System." in front of Guid and DateTime types?

EDIT : That is, an option that would stop this behavior without having to rename the System table/class

Thank you

Answer 1

这就是自动生成的代码和与名称空间名称匹配的类的一个非常普遍的问题（每次在设计器中进行更改时，Windows Designer都会重新添加完全限定名称），只需重命名该类并节省大量时间即可。