Problem removing object from collection (RESOLVED)

I have a SortedList called m_FieldMappings.

All objects in it that are marked 'Delete', i want to remove from the SortedList.

foreach (FieldMapping map in m_FieldMappings.GetValueList())
{
if (map.DBState == enDBAction.Delete) m_FieldMappings.Remove(map.key);
}

The problem seems to be that since I am doing a foreach, the collection should not change otherwise you get an enumeration error.

I'm looking for another way of doing this. :o

Use the enumerator directly. Use two enumerators, one to point to the value that gets deleted, another to point at the next value to continue enumeration.

Thats great CornedBee. Heres' what I wrote and works great.

Seems a good general solution.


IDictionaryEnumerator en = m_FieldMappings.GetEnumerator();
en.Reset();

if (en.MoveNext())
{
while (true)
{
//en.Current; -- don't need since en.Value points to current object
FieldMapping map = (FieldMapping) en.Value;
if (map.DBState == enDBAction.Delete)
{
m_FieldMappings.Remove(map.key);
// re-create the enumerator, since it will have been invalidated.
en = m_FieldMappings.GetEnumerator();
en.Reset();
}

if (!en.MoveNext())
{
break;
}
}
}