Question

Inherit from TabPage

Asked by: Cayman21

Is there a way to build a control that inherits from anything besides UserControl and still see the layout at design time?

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Asked On
2009-10-07 at 21:51:47ID24794842
Topics

VB Controls

,

.NET

,

.NET Framework 3.x versions

Participating Experts
3
Points
500
Comments
13

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Answers

 

by: farhanzahoorPosted on 2009-10-08 at 01:49:38ID: 25523208

your statement is quite confusing please explain.

 

by: webtubbsPosted on 2009-10-08 at 02:04:23ID: 25523296

No, only UserControls can make use of the Designer interface. Something inherited from a control is not a UserControl, but a Custom Control.

Wayne

 

by: AfricansPosted on 2009-10-08 at 02:08:22ID: 25523318

There is no way to do that.

 

by: Cayman21Posted on 2009-10-08 at 07:31:19ID: 25525847

What do you all do for this then?

Inherit from Usercontrol as long as you need to make changes and then swap the inheritance to what you want it to be when you're done?

Or would you build the Custom Tabcontrol and then add the usercontrol to the tab's control collection?

Thanks.

 

by: webtubbsPosted on 2009-10-08 at 13:44:15ID: 25529876

I assume you wish to add some controls to the TabPage? If so, I would build a UserControl, and add that to a regular TabPage.

 

by: Cayman21Posted on 2009-10-08 at 13:47:23ID: 25529913

I'm actually looking to implement an interface.  I'd like to be able to do:

    Public Interface AdminTabPageInt
        Sub RunDataUpdates()
    End Interface

Private Sub mTimer_Tick(ByVal sender As Object, ByVal e As System.EventArgs) Handles mTimer.Tick
   CType(TabControl1.SelectedTab, AdminTabPageInt).RunDataUpdates()
end sub

 

by: Cayman21Posted on 2009-10-08 at 13:48:59ID: 25529928

That way when I have 50 tabs going the timer only refreshes the one that I'm looking at and not all of them.  I know there are ways around this, such as:

CType(TabControl1.SelectedTab.controls(0), AdminControlInt).RunDataUpdates()

But it's not as clean IMHO.

Just wondering if there was a way around it.

 

by: webtubbsPosted on 2009-10-08 at 14:10:35ID: 25530131

So each tab has the same controls?

I would probably still create a UserControl, and add that to a regular TabPage.

 

by: Cayman21Posted on 2009-10-08 at 14:22:47ID: 25530241

This:

CType(TabControl1.SelectedTab.controls(0), AdminControlInt).RunDataUpdates()

Only works if there is only one control, and using your suggestion, I would make sure it was always a usercontrol that impemented AdminTabPageInt (and thereby RunDataUpdates as a public sub)

Thanks for the help.

 

by: webtubbsPosted on 2009-10-08 at 14:59:55ID: 25530637

I would assume there would only be one control on each TabPage anyway, otherwise why would you consider a control inherited from TabPage?

 

by: Cayman21Posted on 2009-10-08 at 15:09:28ID: 25530720

Well, If I could indeed inherit from TabPage then I would add a whole bunch of controls to it.  That's why I was looking for the designer functionality.

If I had to go the UserControl route, then I would only add the one usercontrol and dock.fill it.

 

by: webtubbsPosted on 2009-10-08 at 15:49:30ID: 25531042

>>then I would only add the one usercontrol and dock.fill it.

Yes, that's exactly what I'm suggesting.

 

by: Cayman21Posted on 2009-10-20 at 13:30:42ID: 25618222

I spent a bunch of time looking into this, and I can to the fairly disappointing conclusion that this isn't an easy thing to do.  It seams to me that it could be done somehow.  If VS can do it for a user control and forms, it should be able to do it for any control.  I've got other things on my plate right now, but I might get back to it later.  If I do, I'll update this thread.

Experts, thank you all for your input!

20120131-EE-VQP-002

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