一、存储过程
ALTER PROCEDURE [dbo].[GetPagedData1]
(
@Tables varchar(1000),
@PK varchar(100),
@Sort varchar(200) = NULL,
@PageNumber int = 1,
@PageSize int = 10,
@Fields varchar(1000) = '*',
@Filter varchar(1000) = NULL,
@Group varchar(1000) = NULL)
AS
/*Default Sorting*/
IF @Sort IS NULL OR @Sort = ''
SET @Sort = @PK
/*Find the @PK type*/
DECLARE @SortTable varchar(100)
DECLARE @SortName varchar(100)
DECLARE @strSortColumn varchar(200)
DECLARE @operator char(2)
DECLARE @type varchar(100)
DECLARE @prec int
/*Set sorting variables.*/
IF CHARINDEX('DESC',@Sort)>0
BEGIN
SET @strSortColumn = REPLACE(@Sort, 'DESC', '')
SET @operator = '<='
END
ELSE
BEGIN
IF CHARINDEX('ASC', @Sort) = 0
SET @strSortColumn = REPLACE(@Sort, 'ASC', '')
SET @operator = '>='
END
IF CHARINDEX('.', @strSortColumn) > 0
BEGIN
SET @SortTable = SUBSTRING(@strSortColumn, 0, CHARINDEX('.',@strSortColumn))
SET @SortName = SUBSTRING(@strSortColumn, CHARINDEX('.',@strSortColumn) + 1,
LEN(@strSortColumn))
END
ELSE
BEGIN
SET @SortTable = @Tables
SET @SortName = @strSortColumn
END
SELECT @type=t.name, @prec=c.prec
FROM sysobjects o
JOIN syscolumns c on o.id=c.id
JOIN systypes t on c.xusertype=t.xusertype
WHERE o.name = @SortTable AND c.name = @SortName
IF CHARINDEX('char', @type) > 0
SET @type = @type + '(' + CAST(@prec AS varchar) + ')'
DECLARE @strFilter varchar(1000)
DECLARE @strSimpleFilter varchar(1000)
DECLARE @strGroup varchar(1000)
DECLARE @strStartRow varchar(50)
DECLARE @StrEndRow varchar(50)
/*Default Page Number*/
IF @PageNumber < 1
SET @PageNumber = 1
/*Set paging variables.*/
SET @strStartRow =cast(((@PageNumber - 1)*@PageSize + 1) as varchar(50))
SET @StrEndRow=cast((@strStartRow+@PageSize-1) as varchar(50))
/*Set filter & group variables.*/
IF @Filter IS NOT NULL AND @Filter != ''
BEGIN
SET @strFilter = ' WHERE ' + @Filter + ' '
SET @strSimpleFilter = ' AND ' + @Filter + ' '
print(@strFilter)
print(@strSimpleFilter)
END
ELSE
BEGIN
SET @strSimpleFilter = ''
SET @strFilter = ''
END
IF @Group IS NOT NULL AND @Group != ''
SET @strGroup = ' GROUP BY ' + @Group + ' '
ELSE
SET @strGroup = ''
/*Execute dynamic query*/
--Exec(
--'
--DECLARE @SortColumn ' + @type + '
--SET ROWCOUNT ' + @strStartRow + '
--SELECT @SortColumn=' + @strSortColumn + ' FROM ' + @Tables + @strFilter + ' ' +
--@strGroup + ' ORDER BY ' + @Sort + '
--SET ROWCOUNT ' + @strPageSize + '
--SELECT ' + @Fields + ' FROM ' + @Tables + ' WHERE ' + @strSortColumn + @operator +
--' @SortColumn ' + @strSimpleFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + '
--'
--)
Exec('
with TGetPagedData as
(
select '+@Fields+',ROW_NUMBER() over( order by '+@Sort+') as RowNumber from '+@Tables+@strFilter+'
)
select * from TGetPagedData where RowNumber between '+@strStartRow+' and '+@StrEndRow+'
')
EXEC('select count(*) from '+ @Tables+ @strFilter)
print ('
with TGetPagedData as
(
select '+@Fields+',ROW_NUMBER() over( order by '+@Sort+') as RowNumber from '+@Tables+@strFilter+'
)
select * from TGetPagedData where RowNumber between '+@strStartRow+' and '+@StrEndRow+'
')
print ('select count(*) from '+ @Tables+ @strFilter)
(
@Tables varchar(1000),
@PK varchar(100),
@Sort varchar(200) = NULL,
@PageNumber int = 1,
@PageSize int = 10,
@Fields varchar(1000) = '*',
@Filter varchar(1000) = NULL,
@Group varchar(1000) = NULL)
AS
/*Default Sorting*/
IF @Sort IS NULL OR @Sort = ''
SET @Sort = @PK
/*Find the @PK type*/
DECLARE @SortTable varchar(100)
DECLARE @SortName varchar(100)
DECLARE @strSortColumn varchar(200)
DECLARE @operator char(2)
DECLARE @type varchar(100)
DECLARE @prec int
/*Set sorting variables.*/
IF CHARINDEX('DESC',@Sort)>0
BEGIN
SET @strSortColumn = REPLACE(@Sort, 'DESC', '')
SET @operator = '<='
END
ELSE
BEGIN
IF CHARINDEX('ASC', @Sort) = 0
SET @strSortColumn = REPLACE(@Sort, 'ASC', '')
SET @operator = '>='
END
IF CHARINDEX('.', @strSortColumn) > 0
BEGIN
SET @SortTable = SUBSTRING(@strSortColumn, 0, CHARINDEX('.',@strSortColumn))
SET @SortName = SUBSTRING(@strSortColumn, CHARINDEX('.',@strSortColumn) + 1,
LEN(@strSortColumn))
END
ELSE
BEGIN
SET @SortTable = @Tables
SET @SortName = @strSortColumn
END
SELECT @type=t.name, @prec=c.prec
FROM sysobjects o
JOIN syscolumns c on o.id=c.id
JOIN systypes t on c.xusertype=t.xusertype
WHERE o.name = @SortTable AND c.name = @SortName
IF CHARINDEX('char', @type) > 0
SET @type = @type + '(' + CAST(@prec AS varchar) + ')'
DECLARE @strFilter varchar(1000)
DECLARE @strSimpleFilter varchar(1000)
DECLARE @strGroup varchar(1000)
DECLARE @strStartRow varchar(50)
DECLARE @StrEndRow varchar(50)
/*Default Page Number*/
IF @PageNumber < 1
SET @PageNumber = 1
/*Set paging variables.*/
SET @strStartRow =cast(((@PageNumber - 1)*@PageSize + 1) as varchar(50))
SET @StrEndRow=cast((@strStartRow+@PageSize-1) as varchar(50))
/*Set filter & group variables.*/
IF @Filter IS NOT NULL AND @Filter != ''
BEGIN
SET @strFilter = ' WHERE ' + @Filter + ' '
SET @strSimpleFilter = ' AND ' + @Filter + ' '
print(@strFilter)
print(@strSimpleFilter)
END
ELSE
BEGIN
SET @strSimpleFilter = ''
SET @strFilter = ''
END
IF @Group IS NOT NULL AND @Group != ''
SET @strGroup = ' GROUP BY ' + @Group + ' '
ELSE
SET @strGroup = ''
/*Execute dynamic query*/
--Exec(
--'
--DECLARE @SortColumn ' + @type + '
--SET ROWCOUNT ' + @strStartRow + '
--SELECT @SortColumn=' + @strSortColumn + ' FROM ' + @Tables + @strFilter + ' ' +
--@strGroup + ' ORDER BY ' + @Sort + '
--SET ROWCOUNT ' + @strPageSize + '
--SELECT ' + @Fields + ' FROM ' + @Tables + ' WHERE ' + @strSortColumn + @operator +
--' @SortColumn ' + @strSimpleFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + '
--'
--)
Exec('
with TGetPagedData as
(
select '+@Fields+',ROW_NUMBER() over( order by '+@Sort+') as RowNumber from '+@Tables+@strFilter+'
)
select * from TGetPagedData where RowNumber between '+@strStartRow+' and '+@StrEndRow+'
')
EXEC('select count(*) from '+ @Tables+ @strFilter)
print ('
with TGetPagedData as
(
select '+@Fields+',ROW_NUMBER() over( order by '+@Sort+') as RowNumber from '+@Tables+@strFilter+'
)
select * from TGetPagedData where RowNumber between '+@strStartRow+' and '+@StrEndRow+'
')
print ('select count(*) from '+ @Tables+ @strFilter)
二、调用代码
public static DataTable GetPagedData(string tableName, string primaryKey, string sortExpress, int currentPage, int pageSize, string fields, string filter, string groupBy, out int totalCount)
{
try
{
string sql = "GetPagedData1";
SqlDBAccess access = new SqlDBAccess();
DataSet result;
SqlParameter[] sqlparam =
{
new SqlParameter("@Tables",SqlDbType.VarChar),
new SqlParameter("@PK",SqlDbType.VarChar),
new SqlParameter("@Sort",SqlDbType.VarChar),
new SqlParameter("@PageNumber",SqlDbType.Int),
new SqlParameter("@PageSize",SqlDbType.Int),
new SqlParameter("@Fields",SqlDbType.VarChar),
new SqlParameter("@Filter",SqlDbType.VarChar),
new SqlParameter("@Group",SqlDbType.VarChar),
};
int i = 0;
sqlparam[i++].Value = tableName;
sqlparam[i++].Value = primaryKey;
sqlparam[i++].Value = sortExpress;
sqlparam[i++].Value = currentPage;
sqlparam[i++].Value = pageSize;
sqlparam[i++].Value = fields;
sqlparam[i++].Value = filter;
sqlparam[i++].Value = groupBy;
result = access.ExecuteDataset("TelecomAH163", CommandType.StoredProcedure, sql, sqlparam);
totalCount = (int)result.Tables[1].Rows[0][0];
return result.Tables[0];
}
catch (Exception e)
{
Tracing.Error("", e);
totalCount = 0;
return null;
}
}
{
try
{
string sql = "GetPagedData1";
SqlDBAccess access = new SqlDBAccess();
DataSet result;
SqlParameter[] sqlparam =
{
new SqlParameter("@Tables",SqlDbType.VarChar),
new SqlParameter("@PK",SqlDbType.VarChar),
new SqlParameter("@Sort",SqlDbType.VarChar),
new SqlParameter("@PageNumber",SqlDbType.Int),
new SqlParameter("@PageSize",SqlDbType.Int),
new SqlParameter("@Fields",SqlDbType.VarChar),
new SqlParameter("@Filter",SqlDbType.VarChar),
new SqlParameter("@Group",SqlDbType.VarChar),
};
int i = 0;
sqlparam[i++].Value = tableName;
sqlparam[i++].Value = primaryKey;
sqlparam[i++].Value = sortExpress;
sqlparam[i++].Value = currentPage;
sqlparam[i++].Value = pageSize;
sqlparam[i++].Value = fields;
sqlparam[i++].Value = filter;
sqlparam[i++].Value = groupBy;
result = access.ExecuteDataset("TelecomAH163", CommandType.StoredProcedure, sql, sqlparam);
totalCount = (int)result.Tables[1].Rows[0][0];
return result.Tables[0];
}
catch (Exception e)
{
Tracing.Error("", e);
totalCount = 0;
return null;
}
}