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GlobalType.OnChanging Method

Raises the Changing event.

Namespace:  Microsoft.VisualStudio.Shell.Design
Assembly:  Microsoft.VisualStudio.Shell.Design (in Microsoft.VisualStudio.Shell.Design.dll)

Syntax

'Declaration
Protected Overridable Sub OnChanging ( _
    e As EventArgs _
)
protected virtual void OnChanging(
    EventArgs e
)
protected:
virtual void OnChanging(
    EventArgs^ e
)
abstract OnChanging : 
        e:EventArgs -> unit  
override OnChanging : 
        e:EventArgs -> unit
protected function OnChanging(
    e : EventArgs
)

Parameters

  • e
    Type: EventArgs

    An EventArgs that contains the event data.

Remarks

The OnChanging method is called by the PerformChange method before it initiates a modification to the current type.

Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.

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

.NET Framework Security

See Also

Reference

GlobalType Class

Microsoft.VisualStudio.Shell.Design Namespace

Changing

PerformChange

OnChanged