Spread Windows Forms 17
GrapeCity.Win.PluginInputMan Assembly / GrapeCity.Win.Spread.InputMan.CellType Namespace / DropDownEditor Class / OnKeyDown Method
An System.Object value that indicates the event sender.
The System.Windows.Forms.KeyEventArgs instance that contains the event data.


In This Topic
    OnKeyDown Method (DropDownEditor)
    In This Topic
    Raises the KeyDown event.
    Syntax
    'Declaration
     
    
    Protected Overridable Sub OnKeyDown( _
       ByVal sender As Object, _
       ByVal e As KeyEventArgs _
    ) 
    'Usage
     
    
    Dim instance As DropDownEditor
    Dim sender As Object
    Dim e As KeyEventArgs
     
    instance.OnKeyDown(sender, e)
    protected virtual void OnKeyDown( 
       object sender,
       KeyEventArgs e
    )

    Parameters

    sender
    An System.Object value that indicates the event sender.
    e
    The System.Windows.Forms.KeyEventArgs instance that contains the event data.
    Remarks
    Raising an event invokes the event handler through a delegate.

    The OnKeyDown method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

    Notes to Inheritors:

    When overriding OnKeyDown in a derived class, be sure to call the base class's OnKeyDown method so that registered delegates receive the event.

    See Also