为edmx文件生成数据库注释
add documentation summary for entity framework 6.x edmx file from database table and column comment, now for sqlserver only, you can download source code to add other database implementation.
为entity framework edmx文件添加数据库表及字段的注释，再根据edmx文件生成带注释的实体及上下文类，目前只针对sqlserver，用的ef6.x，你要用其它数据库的话，自己下载源码添加其它数据库的注释生成代码
you can add nuget or download source code to get T4 template and its dependency dll for use.
可以通过nuget或者下载源码使用
EdmxDoc on nuget is here
Install-Package EdmxDoc
use steps:
使用步骤：
copy 'Db.Context.tt' and 'Db.tt' files at T4 directory to your project directory where your edmx file at, replace your 'xxx.Context.tt' and 'xxx.Db.tt' files, then open the two .tt files, modify database connection string to meet your requirement, save it, that's all. then you can remove T4 folder on your project.
将T4目录下的2个.tt文件复制到你的edmx文件所在目录，替换原有的2个.tt文件，然后打开.tt文件，将数据库连接字符串改为你自己的，保存即可,然后你可以移除你项目中的T4文件夹了
if you use source code:
使用源码的话
compile Edmx project, copy Edmx.dll from the output to your solution/packages directory; copy 'Db.Context.tt' and 'Db.tt' files at EdmxDoc\T4 directory to your project directory where your edmx file at, replace your 'xxx.Context.tt' and 'xxx.Db.tt' files, then open the two .tt files, modify database connection string to meet your requirement, save it, that's all.
编译，Edmx项目，将生成的Edmx.dll复制到解决方案的packages目录下；将Edmx项目T4目录下的2个.tt文件复制到你的edmx文件所在目录，替换原有的2个.tt文件，然后打开.tt文件，将数据库连接字符串改为你自己的，保存即可
at last
最终效果
if get errors from T4 compile, check the dependency assembly 'EdmxDoc.resources.dll' path at 2 .tt files. make sure the dll path fit your enviroment.
如果T4编译出错的话，检查它依赖的'EdmxDoc.resources.dll'的路径，确保这个dll的路径在你的环境下是正确的
