Occurs when the Preview Report window is displayed.
[Browsable(false)] public event EventHandler<CustomShowPreviewEventArgs> CustomShowPreview
<Browsable(False)> Public Event CustomShowPreview As EventHandler(Of CustomShowPreviewEventArgs)
The CustomShowPreview event handler receives an argument of the CustomShowPreviewEventArgs type.
Handle this event to display the report preview in a custom form. An example is provided in the How to: Use the Custom Report Preview Form.