How to change default image in a custom control

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Seth Williams - 07 Mar 2008 19:36 GMT

When a custom control is compiled, and then added to the VS.Net toolbox, it
has a 'gear' type image.

For the life of me, I've searched on the net over and over and can't find
how to change that image, inside the control itself, when you're building
it.

Has anyone got a vb.net tutorial/website page/whatever, which tells how this
is accomplished?

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Bob Powell [MVP] - 07 Mar 2008 20:31 GMT

Put an image in the resources, compile it as an embedded resource.

Then use the ToolboxBitmap attribute to specify the image.

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> When a custom control is compiled, and then added to the VS.Net toolbox,
> it has a 'gear' type image.
[quoted text clipped - 5 lines]
> Has anyone got a vb.net tutorial/website page/whatever, which tells how
> this is accomplished?

Reply to this Message

Seth Williams - 12 Mar 2008 02:16 GMT

I added my control to the resources, added the toolboxBitMap attribute:

<System.Drawing.ToolboxBitmap("C:\MyPath\Resources\MyBitmap.bmp")> _ '
<---- it only seems to accept a full path
lic Class MyClass
Nothing - after installing, I just got the default bitmap

and compiled, then installe

> Put an image in the resources, compile it as an embedded resource.
>
[quoted text clipped - 9 lines]
>> Has anyone got a vb.net tutorial/website page/whatever, which tells how
>> this is accomplished?

Reply to this Message

Bob Powell [MVP] - 14 Mar 2008 09:28 GMT

See Windows Forms Tips and Tricks for how to decipher that annoying
reference string (for the classic approach)

The .Net 2.0 resource system however is much easier to use. What are you
using?

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>I added my control to the resources, added the toolboxBitMap attribute:
>
[quoted text clipped - 17 lines]
>>> Has anyone got a vb.net tutorial/website page/whatever, which tells how
>>> this is accomplished?

Reply to this Message

Seth Williams - 17 Mar 2008 15:09 GMT

Definitely using v2.0 - and, for the normal things - I'm fairly used to
it - - just don't fully get it -
I came across your page before, and even after reading it, I'm not 100%
sure - - just to recap
My bitmap is called: MyBitmap.bmp (added to both the project Resources and
the root of the Solution, though I'm not sure I need both - just grabbing at
straws at this point)
My DLL is called: MyControl.DLL
the Namespace is: MyCompany.Controls.MyControl

So, if I used your top syntax, if I understand it correctly, I would think I
would use:
ToolboxBitmap(typeof(MyControl),"MyCompany.Controls.MyControl.MyBitmap.bmp")

Am I on the right track here?

> See Windows Forms Tips and Tricks for how to decipher that annoying
> reference string (for the classic approach)
[quoted text clipped - 23 lines]
>>>> Has anyone got a vb.net tutorial/website page/whatever, which tells how
>>>> this is accomplished?

Reply to this Message

How to change default image in a custom control

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