Microsoft KB Archive/171115
Article ID: 171115
Article Last Modified on 1/20/2007
- Microsoft Outlook 97 Standard Edition
This article was previously published under Q171115
This article demonstrates how to use the Restrict Method. The Restrict method applies a filter to the Items collection, returning a new collection containing all items from the original that match the filter. This method is an alternative to using the Find method or FindNext method to iterate over specific items within a collection. Find or FindNext is faster than filtering if there is a small number of items. Restrict is useful when performance is not a concern.
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In the Visual Basic for Applications example that follows, the Restrict Method applies a filter to the Contact items based on the item's LastModificationTime property.
Public Sub ContactDateCheck() Set outlookApp = CreateObject("outlook.application") Set olNameSpace = outlookApp.GetNamespace("MAPI") Set mycontacts = olNameSpace.GetDefaultFolder(olFolderContacts).Items Set myItems = mycontacts.Restrict("[LastModificationTime] > '05/15/97'") For Each MyItem In myItems MsgBox MyItem.FullName & ": " & MyItem.LastModificationTime Next End Sub
The following Visual Basic for Applications example is the same as the example above, except that it demonstrates the use of a variable in the filter.
Public Sub ContactDateCheck() Set outlookApp = CreateObject("outlook.application") Set olNameSpace = outlookApp.GetNamespace("MAPI") Set myContacts = olNameSpace.GetDefaultFolder(olFolderContacts).Items DateStart = #6/11/97# DateToCheck$ = "[LastModificationTime] >= """ & DateStart & """" Set myRestrictItems = myContacts.Restrict(DateToCheck$) For Each MyItem In myRestrictItems MsgBox MyItem.FullName & ": " & MyItem.LastModificationTime Next End Sub
NOTE: If you are using user-defined fields as part of a Find or Restrict clause, the user-defined fields must exist in the folder otherwise the code will generate an error stating that the field is unknown. You can add a field to a folder by displaying the Field Chooser and clicking New.
NOTE: If you receive an invalid parameter error running this code, make sure you reference the "Microsoft Outlook 8.0 Object Library" in your Visual Basic or Visual Basic for Applications editor.
For more information on using the Restrict method with recurring appointments, please see the following article in the Microsoft Knowledge Base:
170789 OL97: How to Retrieve All Recurring Appointments with Code
For more information about creating solutions with Microsoft Outlook 97, please see the following articles in the Microsoft Knowledge Base:
Additional query words: OutSol OutSol97
Keywords: kbcode kbhowto kbprogramming KB171115