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How to: Store Data in a StorageItem for a Solution

Office 2007

This topic describes how to store private application data in solution storage provided by the Outlook object model.

  1. Determine the folder where you would like to store your application data.
    Bb206773.vs_note(en-us,office.12).gif  Note
    Because solution storage is created as hidden items in a folder, you can only store solution data if the store provider supports hidden items and the client has rights to write to that folder.
  2. Use Folder.GetStorage to obtain either an existing StorageItem object or a new StorageItem object if one does not already exist.
  3. Use StorageItem.Size to determine if the StorageItem is new. If it is, then use the Add method of StorageItem.UserProperties to create a custom property Order Number.
  4. Set the Order Number property. This assumes that an existing StorageItem already has the custom property Order Number defined.
  5. Use StorageItem.Save to save the StorageItem object as a hidden item in the folder.
Sub StoreData()
    Dim oInbox As Folder
    Dim myStorage As StorageItem
    Dim myPrivateProperty As UserProperty
    
    Set oInbox = Application.Session.GetDefaultFolder(olFolderInbox)
    ' Get an existing instance of StorageItem by subject, or create new if it doesn't exist
    Set myStorage = oInbox.GetStorage("My Private Storage", olIdentifyBySubject)
    
    If myStorage.Size = 0 Then
        'There was no existing StorageItem by this subject, so created a new one
        'Create a custom property for Order Number
        Set myPrivateProperty = myStorage.UserProperties.Add("Order Number", olNumber)
    Else
        'Assume that existing storage has the Order Number property already
        Set myPrivateProperty = myStorage.UserProperties("Order Number")
    End If
    myPrivateProperty.Value = lngOrderNumber
    myStorage.Save   
End Sub



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