/// <summary>
/// 寻找符合条件的第一个
/// </summary>
/// <param name="useWhere">使用的过滤条件</param>
/// <returns></returns>
public X FindFirst(Expression <Func <X, bool> > useWhere = null, IncludeDel <X> useInclude = null)
{
return(m_coreRepository.FindFirst(useWhere, useInclude));
}