Microsoft KB Archive/224917

= OL2000: SelectionChange Event Fires When Switching Folders =

Article ID: 224917

Article Last Modified on 11/23/2006

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APPLIES TO


 * Microsoft Outlook 2000 Standard Edition

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This article was previously published under Q224917



SYMPTOMS
You implement the SelectionChange event in your solution expecting that the event may fire only when the user switches to a different item in a folder, but the event also fires when the user clicks a different folder.



CAUSE
When you select a folder that contains items, Outlook automatically selects the first item in the folder, so the event fires. If the folder does not contains items the SelectionChange event may not fire.



MORE INFORMATION
The Microsoft Outlook Visual Basic Reference ( Vbaoutl9.chm) is unclear on the actual behavior, and states that the event does not fire when switching folders. However, this is only true if the folder does not contain items.

[The SelectionChange event] occurs when the selection of the current view changes. Other selection changes (such as the selected folder) do not cause this event to occur...

Steps to Reproduce Problem
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 On the Tools menu, point to Macro and then click Visual Basic Editor. In the Project Explorer window, expand Project 1 to show entries below it, and then expand Microsoft Outlook Objects to show entries below that. Double-click the ThisOutlookSession module to open the code window.  Add the following Visual Basic for Applications code to the ThisOutlookSession module: Dim WithEvents myOlExp As Outlook.Explorer

Private Sub Application_Startup Set myOlExp = Application.ActiveExplorer End Sub

Private Sub myOlExp_Close ' Need to do this so Outlook exits properly. Set myOlExp = Nothing End Sub

Private Sub myOlExp_SelectionChange MsgBox "SelectionChange" End Sub  Restart Outlook. The message box displays because the first item in your Inbox was selected. Switch to any folder that contains items. The message box may be displayed, indicating the SelectionChange event fired.

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