The information in this article applies to:
SUMMARYIf you use Visual Basic, Visual Basic for Applications, or Visual Basic Scripting Edition (VBScript) to loop through items in a folder, you may see the modifications to those items are not saved. You may be unintentionally retrieving the item again from the Items collection, and any changes that you have made to an item are unexpectedly lost. MORE INFORMATIONMicrosoft provides programming examples for illustration only, without
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purpose. This article assumes that you are familiar with the programming
language being demonstrated and the tools used to create and debug
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provide added functionality or construct procedures to meet your specific
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the following page on the World Wide Web: http://www.microsoft.com/support/supportnet/overview/overview.aspMany Outlook solutions modify the contents of items in a folder. In most scenarios you loop through the Items collection in the Outlook object model. If you do not properly reference the items in the collection, you may receive unexpected results. Before modifying an item and saving it, you should set an object variable to the item, make changes to the item using the object variable, and then save the object. NOTE: Be sure to reference the Microsoft Outlook 9.0 Object Library before running these code examples and be aware running this code will modify any existing contacts you have in your Contacts folder. Consider the following Visual Basic automation code sample that is designed to reset the birthday field for each contact in the default Contacts folder:
In the previous example, the loop is adequately structured and will process
all of the items in the folder. However, within the loop each time
ConItems.Item(I) is executed, it retrieves the specific item from the
collection of items. In this case, the Birthday is set for an item, but
then then following line of code gets the item from the collection again.
The end result is that an unmodified item is saved.The following example is one way of modifying the previous code sample so that it executes as expected:
In the previous sample, oCurItem is set to a specific item in the
collection, modifications to the item are made using that object variable,
and the object is saved. This avoids getting an item from the collection
and losing any changes.The following example provides the same functionality as the previous example, but uses the For Each...Next structure to loop through the items:
REFERENCES
For additional information about available resources and answers
to commonly asked questions about Microsoft Outlook 2000 solutions,
please see the following article in the Microsoft Knowledge Base: Q146636 OL2000: Questions About Custom Forms and Outlook Solutions Additional query words: OutSol OutSol2000
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