/// <summary>
///
/// </summary>
/// <param name="sp"></param>
/// <returns></returns>
protected virtual SqlParameter CreateParameter_Fileds(ExhibitionSearchEntity sp)
{
StringBuilder sbfileds = new StringBuilder();
sbfileds.Append(@"*");
return(new SqlParameter("@Fields", sbfileds.ToString()));
}
/// <summary>
/// 使用缓存查询信息
/// </summary>
/// <param name="info">查询主体</param>
/// <param name="totalcnt">返回条目数</param>
/// <returns></returns>
public DataTable QueryData(ExhibitionSearchEntity info, out int totalcnt)
{
//if (info.UseDBPagination)
//{
// string key = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(info.ToJson(info), "MD5");
// DataTableRSCacheEntity rsobj = MyCache<DataTableRSCacheEntity>.Get(key);
// if (rsobj == null)
// {
// DataTable dt = dao.QueryData(info, out totalcnt);
// if (dt != null && dt.Rows.Count > 0)
// {
// rsobj = new DataTableRSCacheEntity() { Source = dt, TotalCnt = totalcnt };
// MyCache<DataTableRSCacheEntity>.Insert(key, rsobj, 60);
// }
// else
// {
// rsobj = new DataTableRSCacheEntity();
// }
// }
// totalcnt = rsobj.TotalCnt;
// return rsobj.Source;
//}
//else
//{
// return dao.QueryData(info, out totalcnt);
//}
return(dao.QueryData(info, out totalcnt));
}
/// <summary>
///
/// </summary>
/// <param name="sp"></param>
/// <returns></returns>
protected virtual SqlParameter CreateParameter_Table(ExhibitionSearchEntity sp)
{
StringBuilder sbtable = new StringBuilder();
sbtable.Append(@"dbo.M_Exhibition_Main AS em");
return(new SqlParameter("@TableName", sbtable.ToString()));
}
protected virtual SqlParameter CreateParamter_Orderby(ExhibitionSearchEntity sp)
{
StringBuilder sb = new StringBuilder();
sb.Append(" em.ExhibitionOrder ASC,em.ExhibitionID ASC ");
return(new SqlParameter("@OrderField", sb.ToString()));
}
/// <summary>
///
/// </summary>
/// <param name="sp"></param>
/// <returns></returns>
protected virtual SqlParameter CreateParameter_Where(ExhibitionSearchEntity sp)
{
StringBuilder sbwhere = new StringBuilder(" 1=1 AND em.StateTypeID = 1");
if (!string.IsNullOrEmpty(sp.ExhibitionTitle))
{
sbwhere.AppendFormat(" AND em.ExhibitionTitle LIKE '%{0}%'", sp.ExhibitionTitle);
}
return(new SqlParameter("@sqlWhere", sbwhere.ToString()));
}
/// <summary>
/// 核心方法。查询条件转换成sql参数
/// </summary>
/// <param name="sp"></param>
/// <returns></returns>
protected virtual List <SqlParameter> ParseToSqlParameters(ExhibitionSearchEntity sp)
{
List <SqlParameter> _parameters = new List <SqlParameter>();
_parameters.Add(CreateParameter_Table(sp));
_parameters.Add(CreateParameter_Fileds(sp));
_parameters.Add(CreateParamter_Orderby(sp));
_parameters.Add(CreateParameter_Where(sp));
_parameters.Add(new SqlParameter("@pageSize", sp.PageSize));
_parameters.Add(new SqlParameter("@pageIndex", sp.PageIndex));
_parameters.Add(new SqlParameter()
{
ParameterName = "@Records", Value = 0, Direction = System.Data.ParameterDirection.Output
});
return(_parameters);
}
public DataTable QueryData(ExhibitionSearchEntity info, out int totalcnt)
{
try
{
SqlParameter[] prms = ParseToSqlParameters(info).ToArray();
DataTable dt = SQlHelper.ExecuteDataset(SQlHelper.MyConnectStr, CommandType.StoredProcedure, "sp_pager05", prms).Tables[0];
totalcnt = int.Parse(prms[prms.Length - 1].Value.ToString());
return(dt);
}
catch (Exception ex)
{
totalcnt = -1;
LogUtil.WriteLog(ex);
return(null);
}
}
private DataTable GetQueryData(bool isDownload)
{
int totalcnt = 0;
ExhibitionSearchEntity entity = new ExhibitionSearchEntity();
entity.ExhibitionTitle = _exhibitionTitle;
entity.PageSize = base.PageSize;
entity.PageIndex = base.PageIndex;
entity.UseDBPagination = !isDownload;
DataTable table = bll.QueryData(entity, out totalcnt);
base.TotalRecords = totalcnt;
return(table);
}
