Entity Framework + MySQL 使用笔记

添加：

 using (var edm = new NorthwindEntities())

 {

 Customers c = new Customers { CustomerID = "c#", City = "成都市", Address = "中国四川省", CompanyName = "cnblogs", Country = "中国", Fax = "", Phone = "", PostalCode = "", Region = "天府广场", ContactName = "风车车.Net" };

 edm.AddToCustomers(c);

 int result = edm.SaveChanges();}

删除：

using (var edm = new NorthwindEntities())

{

Customers deletec = edm.Customers.FirstOrDefault(cc => cc.CustomerID == "c2");

edm.DeleteObject(deletec);

int result = edm.SaveChanges();

}

修改：

 using (var edm = new NorthwindEntities())
 {
 Customers addc = edm.Customers.FirstOrDefault(cc => cc.CustomerID == "c2");
 addc.City = "CD";
 addc.ContactName = "cnblogs";
 addc.Country = "CN";
 int result = edm.SaveChanges();
 }

分页+排序：

 private static List<Post> GetPostList(int pageIndex, int pageSize)
 {
     int startRow = (pageIndex - ) * pageSize;
     using (var db = new EdiBlogEntities())
     {
         var query = db.Post.OrderByDescending(p => p.PubDate).Skip(startRow).Take(pageSize);
         return query.ToList();
     }
 }