Bitter.Core系列六：Bitter ORM NETCORE ORM 全网最粗暴简单易用高性能的 NETCore ORM 之 示例 DataTable 模型转换

public class TScoreSearchDto
    {
        /// <summary>
        /// 分数
        /// </summary>
        public  Int32 FScore { get; set; }

        /// <summary>
        /// 学生名称
        /// </summary>        
        public  String studentName { get; set; }

        /// <summary>
        /// 班级名称
        /// </summary>
        public  String className { get; set; }
        /// <summary>
        /// 年级名称
        /// </summary>
        public String gradeName { get; set; }
        
    }

public List<TScoreSearchDto> getScoreList()
{
   #region //聚联条件分页查询 

var type = 1; //非关键代码，用于下面演示代码用 

var studentname = "H"; //非关键代码，用于下面演示代码用

var sql = @"SELECT   score.FScore,student.FName  as studentName,class.FName as className,grade.FName as  gradeName FROM  dbo.t_StudentScore score
            LEFT JOIN dbo.t_student student  ON score.FStudentId = student.FID
            LEFT JOIN dbo.t_class class ON  student.FClassId=class.FID
            LEFT  JOIN dbo.t_Grade grade ON  grade.FID=class.FGradeId
            "; 
PageQuery pq = new PageQuery(sql,null); 

 pq.Where("1=1");

if (type == 1)
{
    pq.Where("score.FScore>60 ");
}
if (type == 2)
{
    pq.Where("score.FScore>60 and score.FScore<80 ");
}
if (!string.IsNullOrEmpty(studentname))
{
    pq.Where(" student."FName like ‘%‘+@FScoreName+‘%‘",new {FScoreName=studentname}});
}

//通过ThenAsc 方法指定字段排序
pq.ThenASC("score.FScore ");

//通过ThenDESC 方法指定字段排序
pq.ThenDESC("student.FName");

//自己直接指定排序字段和排序关键词
pq.OrderBy("student.FAddTime desc");   

//分页指定 Skip: 当前页，Take :每页数量
pq.Skip(1).Take(10);   

var dt=   pq.ToDataTable(); //获取数据

var studentscount=  pq.Count(); //获取当前条件下的数量
  
  
 return dt.ToListModel<TScoreSearchDto>(); //ToList<T>() DataTable-->List<T> 的模型转换


 #endregion
    
}