/// <summary>
/// 分页查询
/// </summary>
/// <param name="offset">略过</param>
/// <param name="limit">取</param>
/// <param name="searchModel">查询对象(需要查询的字段需要添加QueryType属性)</param>
/// <param name="order">排序（order by id desc）</param>
/// <returns></returns>
public PageableData <T> GetPage(int offset, int limit, object searchModel, string order = "")
{
string condition = ConditionHelper.Build(searchModel).ToString();
return(_provider.GetPage <T>(condition, searchModel, order, offset, limit));
}