How to add StandardCommands.Undo/Redo to MenuCommandService?

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Alan - 27 Feb 2006 03:08 GMT

I implemented an undoEngine in my custom form designer (using MSKB 2004
sample). But when I call GlobalInvoke(StandardCommands.Undo), the
menucommandservice cannot find the StandardCommands.Undo menucommand. I
found out that the StandardCommands.Undo was never added to my
menucommandservice. I know that the AddCommand only adds the
designer-supported commands, how should I instruct my form designer to add
the Undo/Redo standard commands?

Since the undo does not get added by default
(StandardCommands.Delete is as well as StandardCommands.AlignRight and
so on do get added by default.), so I added the command myself in the
MenuCommandService constructor with:

AddCommand(new MenuCommand(new EventHandler(OnUndo),
StandardCommands.Undo));

Also added the event handler code with:

private void OnUndo(object sender, EventArgs e)
{
//This is where I am hung up - what do I do here?
}

Any help would be greatly appreciated! Also please refer to the post:

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=83654&SiteID=1

Thanks,
Alan

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InK_ - 28 Feb 2006 08:22 GMT

Alan

I had a task to add SendToBack and BringToFront functionality to designer.
I've used the following approach:

1) I've added to the designerhost contructor these code:

//add global verbs
IMenuCommandService menuCommandService =
(IMenuCommandService)this.GetService(typeof(IMenuCommandService));
DesignerVerb verb = new DesignerVerb("Bring To Front", new
EventHandler(this.BringToFrontClickHandler), StandardCommands.BringToFront);
menuCommandService.AddVerb(verb);
verb = new DesignerVerb("Send To Back", new
EventHandler(this.SendToBackClickHandler), StandardCommands.SendToBack);
menuCommandService.AddVerb(verb);

2) Then add additional handlers:

private void BringToFrontClickHandler(object sender, EventArgs e)
{
IMenuCommandService menuCommandService =
(IMenuCommandService)this.GetService(typeof(IMenuCommandService));
menuCommandService.GlobalInvoke(StandardCommands.BringToFront);
}
private void SendToBackClickHandler(object sender, EventArgs e)
{
IMenuCommandService menuCommandService =
(IMenuCommandService)this.GetService(typeof(IMenuCommandService));
menuCommandService.GlobalInvoke(StandardCommands.SendToBack);
}

3) You should also add PopupMenu behavior to the class implementing
IMenuCommandService.

Hope it will help somehow.

Signature

Regards,
Inna Stetsyak aka InK_

> I implemented an undoEngine in my custom form designer (using MSKB 2004
> sample). But when I call GlobalInvoke(StandardCommands.Undo), the
[quoted text clipped - 25 lines]
> Thanks,
> Alan

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How to add StandardCommands.Undo/Redo to MenuCommandService?

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