Visual Studio 2005

Re: CompositeControl descendants do not appear in ToolBox - bug?

RobK410 — Fri, 16 Feb 2007 22:20:34 GMT

This possibly could be of use...

http://msdn2.microsoft.com/en-us/library/12yydcke.aspx

I tried and tried to get my CompositeControl based class to show up from my Referenced Project to no avail... I decompiled (.Net Reflector) System.Web.UI.WebControls to see how Microsoft was doing it since I know Wizard is a CompositeControl... and they use a Designer, so I went and created a designer, I did some further tweaking of my ToolboxData string and for some reason now the component shows up in the designer toolbox. There are some other wacky things going on now but it shows up and renders in the designer. I am running on Vista w/ SP1 (non-Vista-ready update)

Re: CompositeControl descendants do not appear in ToolBox - bug?

echoSwe — Wed, 14 Feb 2007 22:42:21 GMT

Yes: this keeps getting added to my web.config:

<compilation defaultLanguage="c#" debug="true">
    <assemblies>
        <add assembly="System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
    </assemblies>
</compilation>

Re: CompositeControl descendants do not appear in ToolBox - bug?

kimoy — Wed, 14 Feb 2007 09:58:27 GMT

strange, i had SP1 installed like 2 weeks ago and when i started doing custom composite controls i got stuck on this toolbox issue. that's why i opted doing the solution i mentioned coz inheriting from CompositeControl simply didn't work for me even with SP1 installed. by the way, i did include my custom composite control project in the solution but still wasn't able to see the control in the toolbox.

i would greatly appreciate to know if you did anything aside from installing SP1.

Re: CompositeControl descendants do not appear in ToolBox - bug?

echoSwe — Wed, 14 Feb 2007 08:02:23 GMT

I mean that I had less of a problem once SP1 was installed, and that if you inherit from e.g. CompositeControl, have the project in your solution and go to design view it should appear in the toolbox. Glad you solved it another way though.

Re: CompositeControl descendants do not appear in ToolBox - bug?

kimoy — Wed, 14 Feb 2007 03:33:56 GMT

i'm not really sure what you mean by SP1 has fixed a lot of these issues coz i have SP1 installed but the problem still persists. so, in building my custom composite control i didn't inherit from CompositeControl class but instead inherited from 'WebControls' and 'INamingContainer'. By doing this, my custom composite control appears in the toolbox.

Re: CompositeControl descendants do not appear in ToolBox - bug?

echoSwe — Tue, 13 Feb 2007 11:20:46 GMT

I think SP1 fixed a lot of these issues. If I have the project with web controls in it, in the solution, they often appear like they should. However, if I just reference the dll file, the problem is still there, and I haven't found a way around that.

Re: CompositeControl descendants do not appear in ToolBox - bug?

kimoy — Tue, 13 Feb 2007 10:36:00 GMT

hello, has anyone found a solution to this problem?

i tried creating a custom composite control but instead of inheriting it from 'CompositeControl' class, i used 'WebControl' class and 'INamingContainer' interface. after building the code, my custom composite control started to appear in the VS2005 SP1 toolbox.

public class MyCompositeControl : WebControl, INamingContainer
{

// some code here...

}

Re: CompositeControl descendants do not appear in ToolBox - bug?

echoSwe — Tue, 24 Oct 2006 22:59:04 GMT

I'm also experiencing this problem, and followed the tutorial JGriffiths linked to - could someone please help with this problem??

Re: CompositeControl descendants do not appear in ToolBox - bug?

JGriffiths — Tue, 10 Oct 2006 10:54:19 GMT

I'm also stumped by this....

I was following the example in:

http://msdn2.microsoft.com/en-us/library/ms379565.aspx

Re: CompositeControl descendants do not appear in ToolBox - bug?

ungrounded — Sun, 03 Sep 2006 00:29:58 GMT

pkellner:
ibrahimm? Help please.

Any help yet? Just running into this same issue myself now...looking for help...?

Re: CompositeControl descendants do not appear in ToolBox - bug?

pkellner — Wed, 23 Aug 2006 17:47:04 GMT

doesn't help me I don't think. This is what my declaration looks like. I was hoping to hear from the Microsoft person ( ibrahimm ) who is on this thread also. I'm about to post a blog entry with a very nice CAPTCHA control I wrote but I'm nervous I will get bombarded with people saying it doesn't work. All Microsoft's controls seem to work, why not mine?

[Designer(typeof(TemplateControlDesigner))]
    [ParseChildren(true)]
    [PersistChildren(false)]
    [DefaultProperty("Title")]
    [DefaultEvent("OnVerified")]
    [ToolboxBitmap(typeof(PeterKellner.Utils.CaptchaUltimateControl), "toolbaricon.bmp")]
    [ToolboxData("<{0}:CaptchaUltimateControl runat=server></{0}:CaptchaUltimateControl>")]
    public class CaptchaUltimateControl : CompositeControl
    {

ibrahimm? Help please.

Re: CompositeControl descendants do not appear in ToolBox - bug?

soslo — Wed, 23 Aug 2006 17:17:29 GMT

I think I just solved this problem - try changing the class declaration from

class foo : base { ... }

public class foo : base { ... }

Re: CompositeControl descendants do not appear in ToolBox - bug?

soslo — Wed, 23 Aug 2006 16:58:40 GMT

I am having this same problem - some of my custom server controls will not appear in the toolbox, and some of those that do appear will not actually work (as in, they cannot be dragged onto an aspx page).

I think this has to do with the type of base class that I am inheriting from. I'm extending some of the Telerik controls, and those that inherit from their controls that do not inherit directly from a stock asp.net control suffer this same problem.

A workaround would be welcomed as this is a prety serious problem for me.

Re: CompositeControl descendants do not appear in ToolBox - bug?

pkellner — Thu, 17 Aug 2006 13:34:50 GMT

I'm having trouble with the "Add/Pick" workaround. My control shows as disabled. When I right click on the toolbox, press choose items, find my control (which is checked but shows as greyed out on the toolbox), press OK, nothing shows up on my default.aspx page and the control still shows as greyed out on the toolbox.

Please explain this workaround in more detail or point me to the bug report with the details.

For me, composite controls sometimes show up, and other times they do not. I don't understand what causes the apparent randomness. This problem is very frustrating.

Re: CompositeControl descendants do not appear in ToolBox - bug?

ibrahimm — Mon, 30 Jan 2006 20:07:37 GMT

This is a known bug in Whidbey when automatically creating such toolbox items derived from a base abstract class. A workaround for now would be to explicitly add/pick these controls using the "Choose Toolbox Items" dialog.

Thanks! - Ibrahim