I'm new to OL programming, am using C#, and am having an issue...

We have a Public Folder that contains a Contacts form with
approximately 5,000 contacts. We want to export this to an Excel
report programmatically.

Using Outlook.MAPIFolder.Folders[MY_FOLDER].Items.Count shows the
correct number of items, but when looping through these items after
about 2,000 they all end up being null. I've found a few topics on
this problem, but none seem to address the problem I'm having.

Is there a limit to the number of Items that can be returned from the
folder? Does anyone know a solution for this? ANY help would be
greatly appreciated!!!

My code:

Outlook.MAPIFolder aFolder =
mapiNamespace.GetDefaultFolder(Outlook.OlDefaultFo lders.olPublicFoldersAllPublicFolders).Folders["My
Folder"]

Items items = aFolder.Items;

int itemCount = items.Count;
object item = items.GetFirst();

for(int i = 0; i itemCount; i++)
{
ContactItem cItem = item as ContactItem;

if (cItem != null)
{
itemInfo[0] = cItem.LastName;
itemInfo[1] = cItem.FirstName;
itemInfo[2] = cItem.CompanyName;
...
}

allItems.Add(itemInfo);
itemInfo = new String[9];

item = items.GetNext();
}

I'm not sure this is it, but I vaguely recall a problem with the Getxxx
constructs. See if using a direct assignment works: item = items[i]

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Absolute Beginner's Guide to Microsoft Office Outlook 2003
Reminder Manager, Extended Reminders, Attachment Options
http://www.slovaktech.com/products.htm


wrote in message
oups.com...
I'm new to OL programming, am using C#, and am having an issue...

We have a Public Folder that contains a Contacts form with
approximately 5,000 contacts. We want to export this to an Excel
report programmatically.

Using Outlook.MAPIFolder.Folders[MY_FOLDER].Items.Count shows the
correct number of items, but when looping through these items after
about 2,000 they all end up being null. I've found a few topics on
this problem, but none seem to address the problem I'm having.

Is there a limit to the number of Items that can be returned from the
folder? Does anyone know a solution for this? ANY help would be
greatly appreciated!!!

My code:

Outlook.MAPIFolder aFolder =
mapiNamespace.GetDefaultFolder(Outlook.OlDefaultFo lders.olPublicFoldersAllPublicFolders).Folders["My
Folder"]

Items items = aFolder.Items;

int itemCount = items.Count;
object item = items.GetFirst();

for(int i = 0; i itemCount; i++)
{
ContactItem cItem = item as ContactItem;

if (cItem != null)
{
itemInfo[0] = cItem.LastName;
itemInfo[1] = cItem.FirstName;
itemInfo[2] = cItem.CompanyName;
...
}

allItems.Add(itemInfo);
itemInfo = new String[9];

item = items.GetNext();
}

Yeah, I tried that already. It's actually the first way I tried to
access the items. When I kept receiving the null values, I thought
maybe the direct assignment was the problem, so I switched to looping
through with the GetNext() method.

No idea then. It's not the famous 250 limit where you're limited to about
250 or so RPC channels, that would hit you much faster.

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Absolute Beginner's Guide to Microsoft Office Outlook 2003
Reminder Manager, Extended Reminders, Attachment Options
http://www.slovaktech.com/products.htm


wrote in message
oups.com...
Yeah, I tried that already. It's actually the first way I tried to
access the items. When I kept receiving the null values, I thought
maybe the direct assignment was the problem, so I switched to looping
through with the GetNext() method.

Hi Ken,

Thanks for you help. I think it actually was the 255 RPC channel
limit. Someone recommended invoking the GC, which seemed to do the
trick. I'm not sure why I was getting back several thousand items
before this limit hit its threshold, though. But, then again, GC seems
to be a bit fickle anyway, so it's not surprising.

Thanks!

Leah Ann

Yes, I got the same problem when I was doing the same thing. I solved it by
sleeping the thread for every 5 contacts or so and then call the GC to clean
up the memory residue.

Alexa

wrote in message
oups.com...
Hi Ken,

Thanks for you help. I think it actually was the 255 RPC channel
limit. Someone recommended invoking the GC, which seemed to do the
trick. I'm not sure why I was getting back several thousand items
before this limit hit its threshold, though. But, then again, GC seems
to be a bit fickle anyway, so it's not surprising.

Thanks!

Leah Ann