Override inherited delegates???

[lsugirljte]

Can you override inherited delegates? If so, how? I have a control that inherits from GridView (i.e. myGridView). It has a deleglate to handle some custom stuff. public PBGridView() { RowUpdating += new GridViewUpdateEventHandler( PreUpdate ); } I have another control that inherits from myGridView (i.e. myMultiGridView). I want to have it's own RowUpdating and skip the inherited one. How do I override it or "remove" it from myMultiGridView?? or do I have to edit myGridView to handle where it's getting called from? I would like to take care of it in myMultiGridView (lowest inherited level). Thanks, Jessica

[led mike]

lsugirljte wrote:

Can you override inherited delegates? If so, how?

They hide that information in the documentation[^]

The OnRowUpdating 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.

led mike

[lsugirljte]

Thanks for the help but I'm worried about this part. "Notes to Inheritors When overriding OnRowUpdating in a derived class, be sure to call the base class's OnRowUpdating method so that registered delegates receive the event. " I don't want to call the base class's OnRowUpdating method because it has code that won't work with my inherited class. Thanks, Jessica

[S Senthil Kumar]

You could try using the new keyword and redefine the event in your myMultiGridView class. For example

class GridView
{
public event RowUpdatingDelegate RowUpdating;
}

class MyMultiGridView : GridView
{
public new event RowUpdatingDelegate RowUpdating;
}

Now clients who subscribe to MyMultiGridView's RowUpdating event will not get notified when the base class fires the event, so you get your own RowUpdating event. Unfortunately, this only works if the client uses your class to subscribe to events. For example

GridView g = new GridView();
g.RowUpdating += ... // Won't work

MyMultiGridView g = new MyMultiGridView();
g.RowUpdating += ... // This will work.

Regards Senthil [MVP - Visual C#] _____________________________ My Blog | My Articles | My Flickr | WinMacro

[lsugirljte]

I found that this worked fine. base.RowUpdating -= new GridViewUpdateEventHandler(base.PreUpdate);

Thanks, Jessica