c# - 如何从数据行数组中删除数据行？

Question

我正在遍历一组数据行，当某个特定的随机项无效时，我想删除该项并获取新的总数以获取另一个随机项。 但是当我删除数据行时，数据行不会消失......是的，可能有更好的方法来做到这一点，但我不够聪明，无法做到这一点......

我没有删除行，而是在里面看到了

ItemArray = podLps[1].ItemArray 引发了类型为 System.Data.RowNotInTableException 的异常

//PHASE 1: Get all LPs in the pod and add to collection
List<DataRow> allLps = dtLp.AsEnumerable().ToList();
DataRow[] podLps = allLps.Where(x => x.ItemArray[0].ToString() == loPod).ToArray();

//PHASE 2: Pick a random LP from collection that has valid WAVE1
for (int i = podLps.Count(); i > 0; i--)
{
   //Recount items in collection since one may have been removed
   int randomIndex = random.Next(podLps.Count());
   var randomLpUserId = podLps[randomIndex].ItemArray[1].ToString();
   var randomLpWave1 = int.Parse(podLps[randomIndex].ItemArray[2].ToString());

   //Get WAVE1 # for selected LP
   lpNumberOfLoans = GetNumberOfLoans(session, randomLpUserId);

  //check if LP has valid WAVE1 then use this person
   if (randomLpWave1 > lpNumberOfLoans)
   {
       return randomLpUserId;
   }
   else
   {
       podLps[randomIndex].Delete();
   }
}

Answer 1

看看这个例子，它应该为您指明删除行的正确方向我刚刚测试过它并且它有效

for (int i = myDataTable.Rows.Count - 1; i >= 0; i--)
{
    DataRow row = myDataTable.Rows[i];  //Remove
    if (myDataTable.Rows[i][0].ToString() == string.Empty)
    {
        myDataTable.Rows.Remove(row);
    }
}