Spread Windows Forms 15.0
GrapeCity.Win.PluginInputMan Assembly / GrapeCity.Win.Spread.InputMan.CellType Namespace / GcComboBox Class / DropDownOpening Event

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    DropDownOpening Event (GcComboBox)
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    Occurs before dropdown window pop up.
    Public Event DropDownOpening As EventHandler(Of DropDownOpeningEventArgs)
    Dim instance As GcComboBox
    Dim handler As EventHandler(Of DropDownOpeningEventArgs)
    AddHandler instance.DropDownOpening, handler
    public event EventHandler<DropDownOpeningEventArgs> DropDownOpening
    Event Data

    The event handler receives an argument of type DropDownOpeningEventArgs containing data related to this event. The following DropDownOpeningEventArgs properties provide information specific to this event.

    Gets a value that indicates whether the drop-down operation is tiggered by touch  
    (Inherited from System.ComponentModel.CancelEventArgs)
    Gets or sets a value that indicates whether to synchronize data to the drop-down when it's opening.  
    This event is raised if the drop-down window is been opening by either a programmatic modification or user interaction.
    See Also