SQL分页ROW_NUMBER() OVER/TOP MAX/TOP MIN存贮过程调用方法
using
System;
using
System.Collections.Generic;
using
System.Text;
using
System.Data.Common;
using
System.Data;
using
System.Linq;
namespace
Pub.Class {
public
class
PagerProc {
private
static
int
cacheSeconds
=
1440
;
public
static
IList
<
TResult
>
ToList
<
TResult
>
(
int
pageIndex,
int
pageSize,
string
tableName,
string
pk,
string
fieldList,
string
sortList,
bool
isDescSort,
string
where
,
bool
isDist,
out
int
totalRecords,
bool
useCache)
where
TResult :
class
,
new
() {
if
(
string
.IsNullOrEmpty(fieldList)) fieldList
=
"
*
"
;
totalRecords
=
0
; IList
<
TResult
>
list
=
null
;
string
cacheNameKey
=
string
.Empty;
string
cacheRecordsKey
=
string
.Empty;
if
(useCache) {
string
cacheName
=
"
{2}Cache_SelectPageList_{0}_{1}_{3}_{4}_{5}_{6}_{7}_{8}
"
;
string
cacheRecords
=
"
{2}Cache_RecordsSelectPageList_{0}_{1}_{3}_{4}_{5}_{6}_{7}_{8}
"
;
cacheNameKey
=
string
.Format(cacheName, pageIndex, pageSize, tableName, pk, fieldList, sortList, isDescSort,
where
, isDist);
cacheRecordsKey
=
string
.Format(cacheRecords, pageIndex, pageSize, tableName, pk, fieldList, sortList, isDescSort,
where
, isDist);
list
=
(IList
<
TResult
>
)Cache2.Get(cacheNameKey);
if
(list
!=
null
) { totalRecords
=
(
int
)Cache2.Get(cacheRecordsKey);
return
list; }
}
DbParameter[] dbParams
=
{
Data.MakeInParam(
"
@page
"
, (DbType)SqlDbType.Int,
4
, pageIndex),
Data.MakeInParam(
"
@pageSize
"
, (DbType)SqlDbType.Int,
4
, pageSize),
Data.MakeInParam(
"
@tblName
"
, (DbType)SqlDbType.NVarChar,
2000
, tableName),
Data.MakeInParam(
"
@ID
"
, (DbType)SqlDbType.NVarChar,
150
, pk),
Data.MakeInParam(
"
@fldName
"
, (DbType)SqlDbType.NVarChar,
500
, fieldList),
Data.MakeInParam(
"
@fldSort
"
, (DbType)SqlDbType.NVarChar,
200
, sortList),
Data.MakeInParam(
"
@Sort
"
, (DbType)SqlDbType.Bit,
1
, isDescSort),
Data.MakeInParam(
"
@strCondition
"
, (DbType)SqlDbType.NVarChar,
1000
,
where
),
Data.MakeInParam(
"
@Dist
"
, (DbType)SqlDbType.Bit,
1
, isDist),
Data.MakeOutParam(
"
@Counts
"
, (DbType)SqlDbType.Int, totalRecords),
};
list
=
Data.GetDbDataReader(
"
getPagerTopMAX
"
, dbParams).ToList
<
TResult
>
();
if
(list
==
null
)
return
null
;
totalRecords
=
(
int
)dbParams[
9
].Value;
if
(useCache) {
Cache2.Insert(cacheNameKey, list, cacheSeconds);
Cache2.Insert(cacheRecordsKey, totalRecords, cacheSeconds);
}
return
list;
}
public
static
IList
<
TResult
>
ToList
<
TResult
>
(
int
pageIndex,
int
pageSize,
string
tableName,
string
pk,
string
fieldList,
string
where
,
out
int
totalRecords,
bool
useCache)
where
TResult :
class
,
new
() {
return
ToList
<
TResult
>
(pageIndex, pageSize, tableName, pk, fieldList, pk,
true
,
where
,
false
,
out
totalRecords, useCache);
}
public
static
IList
<
TResult
>
ToList
<
TResult
>
(
int
pageIndex,
int
pageSize,
string
tableName,
string
pk,
string
fieldList,
string
where
,
out
int
totalRecords)
where
TResult :
class
,
new
() {
return
ToList
<
TResult
>
(pageIndex, pageSize, tableName, pk, fieldList,
where
,
out
totalRecords,
false
);
}
public
static
IList
<
TResult
>
ToList
<
TResult
>
(
int
pageIndex,
int
pageSize,
string
tableName,
string
fieldList,
string
where
,
string
groupBy,
string
orderBy,
out
int
totalRecords,
bool
useCache)
where
TResult :
class
,
new
() {
if
(
string
.IsNullOrEmpty(fieldList)) fieldList
=
"
*
"
;
totalRecords
=
0
; IList
<
TResult
>
list
=
null
;
string
cacheNameKey
=
string
.Empty;
string
cacheRecordsKey
=
string
.Empty;
if
(useCache) {
string
cacheName
=
"
{2}Cache_SelectPageList_{0}_{1}_{3}_{4}_{5}_{6}
"
;
string
cacheRecords
=
"
{2}Cache_RecordsSelectPageList_{0}_{1}_{3}_{4}_{5}_{6}
"
;
cacheNameKey
=
string
.Format(cacheName, pageIndex, pageSize, tableName, fieldList,
where
, groupBy, orderBy);
cacheRecordsKey
=
string
.Format(cacheRecords, pageIndex, pageSize, tableName, fieldList,
where
, groupBy, orderBy);
list
=
(IList
<
TResult
>
)Cache2.Get(cacheNameKey);
if
(list
!=
null
) { totalRecords
=
(
int
)Cache2.Get(cacheRecordsKey);
return
list; }
}
DbParameter[] dbParams
=
{
Data.MakeInParam(
"
@PageIndex
"
, (DbType)SqlDbType.Int,
4
, pageIndex),
Data.MakeInParam(
"
@PageSize
"
, (DbType)SqlDbType.Int,
4
, pageSize),
Data.MakeInParam(
"
@Tables
"
, (DbType)SqlDbType.NVarChar,
1000
, tableName),
Data.MakeInParam(
"
@Fields
"
, (DbType)SqlDbType.NVarChar,
2000
, fieldList),
Data.MakeInParam(
"
@Where
"
, (DbType)SqlDbType.NVarChar,
2000
,
where
),
Data.MakeInParam(
"
@GroupBy
"
, (DbType)SqlDbType.NVarChar,
2000
, groupBy),
Data.MakeInParam(
"
@OrderBy
"
, (DbType)SqlDbType.NVarChar,
1000
, orderBy),
Data.MakeOutParam(
"
@ReturnCount
"
, (DbType)SqlDbType.Int, totalRecords),
};
list
=
Data.GetDbDataReader(
"
getPagerROWOVER
"
, dbParams).ToList
<
TResult
>
();
if
(list
==
null
)
return
null
;
totalRecords
=
(
int
)dbParams[
7
].Value;
if
(useCache) {
Cache2.Insert(cacheNameKey, list, cacheSeconds);
Cache2.Insert(cacheRecordsKey, totalRecords, cacheSeconds);
}
return
list;
}
}
}