Spread WinForms 15
GrapeCity.Win.PluginInputMan Assembly / GrapeCity.Win.Spread.InputMan.CellType Namespace / GcComboBoxEditingControl Class / OnDropDownOpened Method
A System.Object instance that indicates the event source.
A System.EventArgs instance that contains the event data.


In This Topic
OnDropDownOpened Method (GcComboBoxEditingControl)
In This Topic
Raises the DropDownOpened event.
Syntax
'Declaration
 
Protected Overrides Sub OnDropDownOpened( _
   ByVal sender As Object, _
   ByVal e As EventArgs _
) 
 
'Usage
 
Dim instance As GcComboBoxEditingControl
Dim sender As Object
Dim e As EventArgs
 
instance.OnDropDownOpened(sender, e)

Parameters

sender
A System.Object instance that indicates the event source.
e
A System.EventArgs instance that contains the event data.
Remarks
Raising an event invokes the event handler through a delegate.

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

See Also