摘要:
The Entity Framework provider type 'System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer' registered in the application config file for the ADO.NET provider with invariant name 'System.Data.SqlClient' could not be loaded. Make sure that the assembly-qualified name is used and that the assembly is available to the running application. 阅读全文
摘要:
The Entity Framework provider type 'System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer' registered in the application config file for the ADO.NET provider with invariant name 'System.Data.SqlClient' could not be loaded. Make sure that the assembly-qualified name is used and that the assembly is available to the running application. 阅读全文
摘要:
1.简单形式: var q = from p in db.Products group p by p.CategoryID into g select g; 语句描述:Linq使用Group By按CategoryID划分产品。 说明:from p in db.Products 表示从表中将产品对象 阅读全文
摘要:
没什么好说的,因为用的上,所以作此记录: 代码如下: public class indexModel { private object O = new object(); public List<string> Xing = new List<string>() {"赵", "钱", "孙", "李 阅读全文