Read Key of a Collection Object Item

[Kevin L]

I have a collection.
I am looping through the collection using a FOR EACH.

Is there a way to access the Key from the current item?


This code obviously does not work, but I am providing it to illustrate the
value that I am trying to get.


Dim MyCollection as New Collection
Dim objItem as Object

FOR EACH objItem in MyCollection
msgbox(objitem.KEY)
NEXT

 

[Jay B. Harlow [MVP - Outlook]]

Kevin,
Instead of using VB.Collection consider using System.Collections.HashTable.

Then when you use For Each you get back DictionaryEntry values, which
contain the value & the key.

Dim MyCollection as New HashTable Dim entry As DictionaryEntry
Dim objItem as Object

FOR EACH entry in MyCollection objItem = entry.Value
msgbox(entry.KEY)
NEXT

I normally use the collections in System.Collections &
System.Collections.Specialized as they are more specific to the task at
hand, where as VB.Collection is a little too generalized. Mostly I derive
type safe classes from either DictionaryBase or CollectionBase.

Hope this helps
Jay

 

[Kevin L]

Thanks. Much better.

Kevin,
Instead of using VB.Collection consider using
System.Collections.HashTable.

Then when you use For Each you get back DictionaryEntry values, which
contain the value & the key.


I normally use the collections in System.Collections &
System.Collections.Specialized as they are more specific to the task at
hand, where as VB.Collection is a little too generalized. Mostly I derive
type safe classes from either DictionaryBase or CollectionBase.

Hope this helps
Jay

 

[Chris Dunaway]

Jay, do you know off the top of your head if .Net 2.0 has a generic
HashTable that does not return a dictionaryObject, but returns the
correct object?

Just wondering.

Chris

 

[Jay B. Harlow [MVP - Outlook]]

Chris,
Do you mean DictionaryEntry?

No I do not.

Hope this helps
Jay