VS2017 c# EF使用 mysql

mysql-connector-net-6.9.9.msi 完全安裝
mysql-for-visualstudio-1.2.7.msi 完全安裝

 

添加 MySql.Data  、MySql.Data.Enity 包          MySql.Web

install-package EntityFramework -version 6.2.0
install-package mysql.data -version 6.9.9 //此處版本與mysql-connector-net-6.9.9 版本要一致
install-package mysql.data.entity -version 6.9.9 //此處版本與mysql-connector-net-6.9.9 版本要一致

 

重新生成.

 

生成模型時出現意外錯誤 表TableDtails中列IsPrimaryKey的值為DBNull

https://stackoverflow.com/questions/33575109/mysql-entity-the-value-for-column-isprimarykey-in-table-tabledetails-is

Entity Framework (version 6.1.3) and MySQL Server (>= 5.7.6)

One way to resolve the issue is,

1. Open Services (services.msc) and restart MySQL57 service.
2. Execute the following commands in MySQL.
   use <<database name>>;
   set global optimizer_switch='derived_merge=OFF';
3. Update the .edmx.