存储过程分页 Ado.Net分页 EF分页 满足90%以上

存储过程分页:

 1 create proc PR_PagerDataByTop
 2 @pageIndex int,
 3 @pageSize int,
 4 @count int out
 5 as
 6 select top(@pageSize) * from dbo.userInfo where ID not in
 7 (
 8     select top((@pageIndex-1)*@pageSize) ID from dbo.userInfo
 9 )
10 set @count = (select COUNT(1) from dbo.userInfo)
top pager
 1 alter proc PR_PagerDataByRow
 2 @pageIndex int,
 3 @pageSize int,
 4 @count int out
 5 as
 6 select * from 
 7 (
 8     select *,ROW_NUMBER() over (order by id) as xh from dbo.userInfo 
 9 )as tb2
10 where tb2.xh between (@pageIndex-1)*@pageSize+1 and @pageIndex*@pageSize
11 set @count = (select COUNT(1) from dbo.userInfo)
row_number pager

Ado.Net分页:

这里只上传一个例子(同理:可以调用上面2个存储过程):

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 
 6 using System.Data;
 7 using System.Data.SqlClient;
 8 
 9 namespace UseStoredProcedure
10 {
11     class Program
12     {
13         static void Main(string[] args)
14         {
15             string conStr = "server=.;database=MyDb;uid=sa;pwd=123";
16             using (SqlConnection conn = new SqlConnection(conStr))
17             {
18                 using (SqlCommand cmd = new SqlCommand())
19                 {
20                     cmd.Connection = conn;
21                     cmd.CommandType = CommandType.StoredProcedure;
22                     cmd.CommandText = "PR_PagerData";
23                     cmd.Parameters.Add("@pageSize", 12);
24                     cmd.Parameters.Add("@pageIndex", 1);
25                     cmd.Parameters.Add("@count", 1).Direction = ParameterDirection.Output;
26                     using (SqlDataAdapter da = new SqlDataAdapter(cmd))
27                     {
28                         conn.Open();
29                         DataSet ds = new DataSet();
30                         da.Fill(ds);
31                         int count = (int)cmd.Parameters["@count"].Value;
32                     }
33                 }
34             }
35         }
36     }
37 }
调用存储过程

EF分页:

Linq(EF实际也是调用Ado.Net):

1 public IEnumerable<T> GetPageUserInfos<s>(int pageIndex, int pageSize, Func<T, bool> whereLmd, Func<T, s> orderLmd, out int count, bool isAsc)
2         {
3             var set = db.Set<T>();
4             count = set.Count();
5             return set.Where(whereLmd).OrderBy(orderLmd).
6                 Skip(pageSize * (pageIndex - 1)).Take(pageSize);
7         } 
Linq通用完整分页

EF增删改查:

 1         #region 增删改查
 2         //
 3         public int Add(T model)
 4         {
 5             db.Set<T>().Add(model);
 6             return db.SaveChanges();
 7         }
 8 
 9         //
10         public int Del(T model)
11         {
12             db.Set<T>().Attach(model);
13             db.Set<T>().Remove(model);
14             return db.SaveChanges();
15         }
16 
17         public int DelBy(Func<T, bool> whereLmd)
18         {
19             db.Set<T>().RemoveRange(db.Set<T>().Where(whereLmd));
20             return db.SaveChanges();
21         }
22 
23         //
24         public int Modify(T model, params string[] propName)
25         {
26             DbEntityEntry de = db.Entry(model);
27             de.State = System.Data.Entity.EntityState.Unchanged;
28             foreach (var str in propName)
29             {
30                 de.Property(str).IsModified = true;
31             }
32             return db.SaveChanges();
33         }
34 
35         //
36         public IQueryable<T> GetList(Expression<Func<T, int, bool>> whereLmd)
37         {
38             return db.Set<T>().Where(whereLmd);
39         }
40 
41         //分页
42         public IEnumerable<T> GetPageUserInfos<s>(int pageIndex, int pageSize, Func<T, bool> whereLmd, Func<T, s> orderLmd, out int count, bool isAsc)
43         {
44             var set = db.Set<T>();
45             count = set.Count();
46             return set.Where(whereLmd).OrderBy(orderLmd).
47                 Skip(pageSize * (pageIndex - 1)).Take(pageSize);
48         } 
49         #endregion
EF通用增删该查泛型

TT模板:

 1 <#@ template language="C#" debug="false" hostspecific="true"#>
 2 <#@ include file="EF.Utility.CS.ttinclude"#><#@
 3  output extension=".cs"#>
 4  
 5  <#
 6 
 7     CodeGenerationTools code = new CodeGenerationTools(this);
 8     MetadataLoader loader = new MetadataLoader(this);
 9     CodeRegion region = new CodeRegion(this, 1);
10     MetadataTools ef = new MetadataTools(this);
11 
12     string inputFile = @"..\MODEL\{模板文件名}.edmx";
13 
14     EdmItemCollection ItemCollection = loader.CreateEdmItemCollection(inputFile);
15     string namespaceName = code.VsNamespaceSuggestion();
16 
17     EntityFrameworkTemplateFileManager fileManager = EntityFrameworkTemplateFileManager.Create(this);
18 
19 #>
20 
21 using System;
22 using System.Collections.Generic;
23 using System.Linq;
24 using System.Text;
25 
26 namespace IDAL
27 {
28 <#
29 
30     // Emit Entity Types
31     foreach (EntityType entity in ItemCollection.GetItems<EntityType>().OrderBy(e => e.Name))
32     {
33         //fileManager.StartNewFile(entity.Name + "RepositoryExt.cs");
34         //BeginNamespace(namespaceName, code);
35     
36 #>
37     public partial interface I<#=            entity.Name#>DAL : IBaseDAL<MODEL.<#=            entity.Name#>>
38     {
39     }
40 
41 <#    }#>
42 
43 }
通用子类模板

 

 

MySqlHelper:

  1 using System;
  2 using System.Data;
  3 using System.Data.SqlClient;
  4 
  5 namespace AdoNet
  6 {
  7     public static class SQLHelper
  8     {
  9         #region simplerHelper
 10         static string strCon = System.Configuration.ConfigurationManager.ConnectionStrings["sql"].ConnectionString;
 11         #region 1.0 返回受影响行数
 12         public static int ExecuteNonQuery(string sql, params SqlParameter[] sqlparams)
 13         {
 14             return ExecuteNonQuery(sql, CommandType.Text, sqlparams);
 15         }
 16         public static int ExecuteNonQuery(string sql, CommandType type, params SqlParameter[] sqlparams)
 17         {
 18             using (SqlConnection conn = new SqlConnection(strCon))
 19             {
 20                 using (SqlCommand cmd = new SqlCommand(sql, conn))
 21                 {
 22                     try
 23                     {
 24                         conn.Open();
 25                         cmd.CommandType = type;
 26                         if (sqlparams.Length > 0)
 27                         {
 28                             cmd.Parameters.AddRange(sqlparams);
 29                         }
 30                         int rows = cmd.ExecuteNonQuery();
 31                         return rows;
 32                     }
 33                     catch
 34                     {
 35                         return -1;
 36                     }
 37                 }
 38             }
 39         } 
 40         #endregion
 41         #region 2.0 查询单个值
 42         public static object ExecuteScalar(string sql, params SqlParameter[] sqlparams)
 43         {
 44             return ExecuteScalar(sql, CommandType.Text, sqlparams);
 45         }
 46         public static object ExecuteScalar(string sql, CommandType type, params SqlParameter[] sqlparams)
 47         {
 48             using (SqlConnection conn = new SqlConnection(strCon))
 49             {
 50                 using (SqlCommand cmd = new SqlCommand(sql, conn))
 51                 {
 52                     try
 53                     {
 54                         conn.Open();
 55                         cmd.CommandType = type;
 56                         if (sqlparams.Length > 0)
 57                         {
 58                             cmd.Parameters.AddRange(sqlparams);
 59                         }
 60                         return cmd.ExecuteScalar();
 61                     }
 62                     catch
 63                     {
 64                         return null;
 65                     }
 66                 }
 67             }
 68         } 
 69         #endregion
 70         #region 3.0 查询单表
 71         public static DataTable GetTable(string sql, params SqlParameter[] sqlparams)
 72         {
 73             return GetTable(sql, CommandType.Text, sqlparams);
 74         }
 75         public static DataTable GetTable(string sql, CommandType type, params SqlParameter[] sqlparams)
 76         {
 77             using (SqlConnection conn = new SqlConnection(strCon))
 78             {
 79                 using (SqlCommand cmd = new SqlCommand(sql, conn))
 80                 {
 81                     try
 82                     {
 83                         conn.Open();
 84                         cmd.CommandType = type;
 85                         if (sqlparams.Length > 0)
 86                         {
 87                             cmd.Parameters.AddRange(sqlparams);
 88                         }
 89                         using (SqlDataAdapter da = new SqlDataAdapter(cmd))
 90                         {
 91                             DataTable dt = new DataTable();
 92                             da.Fill(dt);
 93                             return dt;
 94                         }
 95                     }
 96                     catch
 97                     {
 98                         return null;
 99                     }
100                 }
101             }
102         } 
103         #endregion
104         #endregion
105     }
106 }
MySqlHelper

 

posted @ 2014-10-05 20:47  Never、C  阅读(463)  评论(0编辑  收藏  举报