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Inheriting from a Windows Forms Control with Visual Basic

Posted on 2012-03-10
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Last Modified: 2012-03-10
Hi

I'm following the steps listed in the following microsoft document for adding a windows form control:

http://msdn.microsoft.com/en-us/library/w2a8y03d.aspx

When I get to the following step:

To add your control to the form

    In Solution Explorer, right-click Form1.vb and choose View Designer from the shortcut menu.

    In the Toolbox, click ValueButtonLib Components. Double-click ValueButton.

    A ValueButton appears on the form.


I can't see the ValueButtonLib Components in the toolbox!

What am I doing wrong?

John
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Question by:IssacJones
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15 Comments
 
LVL 17

Expert Comment

by:nepaluz
ID: 37704999
You've missed step 2!
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LVL 17

Expert Comment

by:nepaluz
ID: 37705003
Actually, you need to compile the project before the control appears in the toolbox.
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Author Comment

by:IssacJones
ID: 37705044
Step 2?

I have followed all the steps and compiled everything and I still can't see it in the toolbox
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LVL 17

Expert Comment

by:nepaluz
ID: 37705055
Any user controls that are added in code will appear at the top of the toolbox after you have compiled the project. You have most definitely missed a step in the process!
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LVL 70

Expert Comment

by:Éric Moreau
ID: 37705083
which version of VB.Net are you using? I know that some things changed over versions.
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Author Comment

by:IssacJones
ID: 37705109
Visual Basic 2010
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LVL 70

Expert Comment

by:Éric Moreau
ID: 37705135
are both your project (control and form) in the same solution?
0
 

Author Comment

by:IssacJones
ID: 37705144
yes
0
 
LVL 70

Expert Comment

by:Éric Moreau
ID: 37705164
it is working for me exactly like they explain. are you sure you have added a reference to your control project like explained in the "To create a test project" section
0
 

Author Comment

by:IssacJones
ID: 37705179
hi - strange. The only think I have done differently is that I have added a TextBox rather than a button. I'm assuming that it is still a control so it shouldn't make a difference. Apologies for not pointing that out first if it is the cause.

Yes, I have added a reference and I can see it in the Solution Explorer for the main project.
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LVL 70

Expert Comment

by:Éric Moreau
ID: 37705248
I just changed the button for a textbox and it is still working.

do you have any compile error?

why not scrap your project and start a brand new solution.
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LVL 40

Accepted Solution

by:
Jacques Bourgeois (James Burger) earned 400 total points
ID: 37705436
There is a property in Tools...Options...Windows Forms Designer that says AutoToolboxPopulate. This should be set to True.
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Author Closing Comment

by:IssacJones
ID: 37705525
Genius!!!!

Yes, that did it. I wonder why it isn't set to true by default!!!!

Many, many thanks.

Thanks also to the other guys!
0
 
LVL 40
ID: 37705642
It is set to True by default. That is why all the other experts did not spot the problem. You probably changed it by mistake at some point.
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Author Comment

by:IssacJones
ID: 37705784
Nope. I can guarantee I didnt change it. This was a fresh install of visual studio 2010 from a few days ago and I've been nowhere near those settings!
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