SET @SortName = @SortColumn
SET @Order = @SortColumn
SET @Operator = ‘>=’
END
DECLARE @type varchar(50)
DECLARE @prec int
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 @TopRows INT
SET @TopRows = @PageSize * @CurrentPage + 1
PRINT @type
DECLARE @sql NVARCHAR(4000)
SET @Sql = ‘DECLARE @SortColumnBegin ‘ + @type + ‘
SET ROWCOUNT ‘ + Cast(@TopRows as VARCHAR(10))+ ‘ SELECT @SortColumnBegin=’ +
@SortColumn + ‘ FROM ‘ + @TableNames + ‘ ‘ + @Filter + ‘ ‘ + @Group + ‘ ORDER BY ‘ + @Order + ‘
SET ROWCOUNT ‘ + CAST(@PageSize AS VARCHAR(10)) + ‘
SELECT ‘ + @Fields + ‘ FROM ‘ + @TableNames + ‘ ‘ + @Filter + ‘ AND ‘ + @SortColumn + ” + @Operator + ‘@SortColumnBegin ‘ + ISNULL(@Group,”) + ‘ ORDER BY ‘ + @Order + ”
— Print(@sql)
Exec(@sql)
END
以及实现此方法的数据操作类
using System;
using System.Collections.Generic;
using System.Text;
using System.Data.SqlClient ;
using System.Data;
using System.Configuration;
using Wuqi.Webdiyer;
using Models;
namespace DAL
{
public class DBHelper
{
public static readonly string CONN_STRING = ConfigurationManager.ConnectionStrings[“RyMedicalConnectionString”].ConnectionString;
public static SqlDataReader GetReader(string safeSql)
{
SqlConnection conn = new SqlConnection(CONN_STRING);
SqlCommand cmd = new SqlCommand(safeSql, conn);
SqlDataReader reader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
reader.Close();
return reader;
}
public static SqlDataReader GetReader(string sql, params SqlParameter[] values)
{
SqlConnection conn = new SqlConnection(CONN_STRING);
SqlCommand cmd = new SqlCommand(sql, conn);
conn.Open();
cmd.Parameters.AddRange(values);
SqlDataReader reader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
reader.Close();
conn.Close();
return reader;
}
public static DataTable GetDataSet(string safeSql)
{
SqlConnection conn = new SqlConnection(CONN_STRING);
DataSet ds = new DataSet();
SqlCommand cmd = new SqlCommand(safeSql, conn);
conn.Open();
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(ds);
conn.Close();
return ds.Tables[0];
}
public static DataTable GetDataSet(CommandType cmdType, string cmdText, params SqlParameter[] cmdParms)
{
SqlConnection conn = new SqlConnection(CONN_STRING);
DataSet ds = new DataSet();
SqlCommand cmd = new SqlCommand(cmdText, conn);
conn.Open();
