weird hashtable behaviour ..is a bug ?

  • Thread starter Thread starter Pankaj
  • Start date Start date
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Pankaj

Hi All,

I use a Hashtable in my program to keep unique items...at one instance I
need to repopulate this hashtable through a loop.
when starting repopulation hashtable.count() returns ZERO hence first item
gets added successfully but as soon as the control reaches top of foreach
loop
somehow a second item which indeed existed before repoulation started
appears in hashtable and count returns two hence this second item can not
add itself because of duplicate key.

I tried allocating a new object to hashtable as well as clear() before
repopulating but same weird behaviour.

At the end I have to check in repopulation code that if key existed then
dont add it ...my code worked for time
but just wondering....why why why?

Any thoughts ?

-TIA
Pankaj
 
Pankaj said:
I use a Hashtable in my program to keep unique items...at one instance I
need to repopulate this hashtable through a loop.
when starting repopulation hashtable.count() returns ZERO hence first item
gets added successfully but as soon as the control reaches top of foreach
loop somehow a second item which indeed existed before repoulation started
appears in hashtable and count returns two hence this second item can not
add itself because of duplicate key.
Click to expand...

Could you post a short but complete program which demonstrates the
problem?

See http://www.pobox.com/~skeet/csharp/complete.html for details of
what I mean by that.
 
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