Spread WinForms 15
GrapeCity.Win.PluginInputMan Assembly / GrapeCity.Win.Spread.InputMan.CellType Namespace / GcTextBox Class / OnDropDownOpening Method
A DropDownOpeningEventArgs instance that contains the event data.


In This Topic
OnDropDownOpening Method (GcTextBox)
In This Topic
Raises the DropDownOpening event.
Syntax
'Declaration
 

Protected Overridable Sub OnDropDownOpening( _
   ByVal e As DropDownOpeningEventArgs _
)
 
'Usage
 

Dim instance As GcTextBox
Dim e As DropDownOpeningEventArgs
 
instance.OnDropDownOpening(e)

Parameters

e
A DropDownOpeningEventArgs instance that contains the event data.
Remarks
Raising an event invokes the event handler through a delegate. The OnDropDownOpening 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 OnDropDownOpening in a derived class, be sure to call the base class's OnDropDownOpening method so that registered delegates receive the event.
See Also

Reference

GcTextBox Class
GcTextBox Members

 

 

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