List Items not removes

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I have a code

C#

List<PurchaseMain> addList = new List<PurchaseMain>();
           List<PurchaseMain> poRecive = new List<PurchaseMain>();
           List<PurchaseMain> poNewGenerate = new List<PurchaseMain>();
           using (InventoryEntities inventoryEntities = new InventoryEntities())
           {
               var poResult = (from res in inventoryEntities.PORecived_Main
                               select new PurchaseMain { RecNo = res.RefNo }).ToList<PurchaseMain>(); ;
               poRecive = poResult;
               var poNewResult = (from res in inventoryEntities.PONewGenerate_Main
                                  select new PurchaseMain { RecNo = res.RefNo }).ToList<PurchaseMain>();
               poNewGenerate = poNewResult;
               foreach (var t in poNewGenerate)
               {
                   poRecive.Add(t);
               }
               var purchaseResult = (from res in inventoryEntities.Purchase_Main
                                     select new PurchaseMain { RecNo = res.RecivedPO }).ToList<PurchaseMain>(); ;
               var chklist = poRecive;
               foreach (var t in purchaseResult)
               {
                   for (int counter = 0; counter < poRecive.Count; counter++)
                   {
                       if (t.RecNo == poRecive[counter].RecNo)
                       {
                           chklist.Remove(t);
                       }
                   }
                   //foreach (var rt in poRecive)
                   //{

                   //}
               }
               addList = chklist;
           }
           return addList;

when it return, it contain same value..

Posted 26-Apr-13 0:07am

Dharmendra-18

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Comments

ZurdoDev 26-Apr-13 7:38am

Return from where? Who calls it? What is this? Put a breakpoint and walk through it and see what is happening and then give us something specific to work with.

Dharmendra-18 26-Apr-13 8:17am

this is method which calculate billing id, who is already seen is not for adding.
here remove method not works..

ZurdoDev 26-Apr-13 8:20am

And, what does not work mean? Do you get an error? What line?

Dharmendra-18 26-Apr-13 8:25am

not giving error. only
foreach (var t in purchaseResult)
{
for (int counter = 0; counter < poRecive.Count; counter++)
{
if (t.RecNo == poRecive[counter].RecNo)
{
chklist.Remove(t);
}
}
//foreach (var rt in poRecive)
//{

//}
}
addList = chklist;
not removes same id data

ZurdoDev 26-Apr-13 8:27am

Does the Remove line even run?

Dharmendra-18 27-Apr-13 0:04am

control goes on chklist.Remove(t) lines but it not removes items(data).

Dharmendra-18 27-Apr-13 0:11am

Suppose we have two list like ...
List<int> list1={1,2,3,4,5};
List<int> list2={2,3,5,6,7};
now i want result like..
List<int> list3={1,4};

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Steve44 · Accepted Answer · 2013-04-26T21:40:00

Your code line

C#

chklist.Remove(t);

is incorrect as it tries to remove the item t (which is an item in the purchaseResult list) from the chklist. As it is not part of the chklist it is not found and so nothing is removed.
To make your code work you need to remove the item that is in the chklist, which is just an alias for the poRevice list.

The code could look like this:

C#

chklist.Remove(poRecive[counter]);
break; // this is assuming RecNo is unique.