var zq =
from p in sGERPDataSet.CWTMP
group p by new { p.Flag, p.YWB_HXT, p.YWB_YWID, p.YWB_DJID } into g
orderby g.Key
select
new
{
g.Key,
NumProducts = g.Count(),
g
};
foreach (var _v in zq) //执行到这里,出现:必须至少有一个对象实现 IComparable 的错误。请我应该怎样解决??
{
MessageBox.Show(_v.Key.ToString());
MessageBox.Show(_v.NumProducts.ToString());
foreach (var _vv in _v.g)
{
MessageBox.Show(_vv.Flag.ToString() + _vv.YWB_HXT.ToString());
}
}