/// <summary>
///
/// </summary>
/// <param name="sp"></param>
/// <returns></returns>
protected virtual SqlParameter CreateParameter_Fileds(StartPicSearchEntity sp)
{
StringBuilder sbfileds = new StringBuilder();
sbfileds.Append(@" sp.*,p.PicturePath,p.Domain,CONVERT(NVARCHAR(30),sp.StartTime,20) AS FormatStartTime,CONVERT(NVARCHAR(30),sp.EndTime,20) AS FormatEndTime ");
return(new SqlParameter("@Fields", sbfileds.ToString()));
}
protected virtual SqlParameter CreateParamter_Orderby(StartPicSearchEntity sp)
{
StringBuilder sb = new StringBuilder();
sb.Append(" sp.PictureID DESC ");
return(new SqlParameter("@OrderField", sb.ToString()));
}
/// <summary>
///
/// </summary>
/// <param name="sp"></param>
/// <returns></returns>
protected virtual SqlParameter CreateParameter_Table(StartPicSearchEntity sp)
{
StringBuilder sbtable = new StringBuilder();
sbtable.Append(@" [M_StartPictures] AS sp
INNER JOIN M_V_Picture AS p ON p.PictureID = sp.PictureID ");
return(new SqlParameter("@TableName", sbtable.ToString()));
}
/// <summary>
///
/// </summary>
/// <param name="info"></param>
/// <param name="totalcnt"></param>
/// <returns></returns>
public DataTable QueryData(StartPicSearchEntity 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);
}
}
/// <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(StartPicSearchEntity 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);
}
/// <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(StartPicSearchEntity info, out int totalcnt)
{
return(dao.QueryData(info, out totalcnt));
}
/// <summary>
///
/// </summary>
/// <param name="sp"></param>
/// <returns></returns>
protected virtual SqlParameter CreateParameter_Where(StartPicSearchEntity sp)
{
StringBuilder sbwhere = new StringBuilder(" 1=1 ");
return(new SqlParameter("@sqlWhere", sbwhere.ToString()));
}
