OlkListBoxEvents_BeforeUpdateEventHandler Delegate
Definition
Important
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This is a delegate for an event in the corresponding object. After implementing a callback method for the event, use this delegate to connect the callback method to the event. If there are multiple versions of the event interface, this delegate connects the callback method for the event in the specified version of Outlook.
public delegate void OlkListBoxEvents_BeforeUpdateEventHandler(bool % Cancel);[System.Runtime.InteropServices.ComVisible(false)]
public delegate void OlkListBoxEvents_BeforeUpdateEventHandler(ref bool Cancel);Public Delegate Sub OlkListBoxEvents_BeforeUpdateEventHandler(ByRef Cancel As Boolean)Parameters
- Cancel
- Boolean
False when the event occurs. If the event procedure sets this argument to True, the operation will not be completed and the property bound to the control will not be updated.
- Attributes