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/**////
/// 返回数据集
///
///
///
public DataSet GetData(string sql,string strconn)
{
OleDbConnection ole=new OleDbConnection("PROVIDER=Microsoft.Jet.OLEDB.4.0;DATA Source="+strconn);
ole.Open();
OleDbCommand cm=new OleDbCommand(sql,ole);
DataSet ds=new DataSet();
OleDbDataAdapter da=new OleDbDataAdapter(cm);
da.Fill(ds);
ole.Close();
return ds;
}
/**////
/// 分页
///
/// 每页大小
/// 当前页数
/// 获取字段名
/// 表名
/// 排序字段
/// 排序方式,true为升序，false为降序
/// 满足的条件
///
public DataSet GetPage(int pagesize,int pageindex,string field,string tablename,string orderfield,bool taxis,string condition)
{
string temp;
if(taxis)
{
temp="asc";
}
else
{
temp="desc";
}
string sql;
if(pageindex==1)
{
if(condition=="")
{
sql="select top "+pagesize+" "+field+" from "+tablename+" order by "+orderfield+" "+temp;
return GetData(sql);
}
else
{
sql="select top "+pagesize+" "+field+" from "+tablename+" where "+condition+" order by "+orderfield+" "+temp;
return GetData(sql);
}
}
else
{
pageindex=(pageindex-1)*pagesize;
if(condition=="")
{
if(taxis)
{
sql="select top "+pagesize+" "+field+" from "+tablename+" where "+orderfield+">all(select top "+pageindex+" "+orderfield+" from "+tablename+" order by "+orderfield+" "+temp+") order by "+orderfield+" "+temp;
}
else
{
sql="select top "+pagesize+" "+field+" from "+tablename+" where "+orderfield+"
return GetData(sql);
}
else
{
if(taxis)
{
sql="select top "+pagesize+" "+field+" from "+tablename+" where "+condition+" and "+orderfield+">all(select top "+pageindex+" "+orderfield+" from "+tablename+" where "+condition+" order by "+orderfield+" "+temp+") order by "+orderfield+" "+temp;
}
else
{
sql="select top "+pagesize+" "+field+" from "+tablename+" where "+condition+" and "+orderfield+"
return GetData(sql);
}
}
}
希望给于评价
http://www.cnblogs.com/wang123/archive/2006/12/08/586505.html