Re: Constructor for type Borland.Vcl.ActnList.TActionList can not be found

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#509

From: Michael Mayer
Date: Sat, 14 Aug 2004 16:14

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"Marc Rohloff [TeamB]" <"on request"> wrote:
>On 4 Aug 2004 09:11:06 -0700, Michael Mayer wrote:
>
>> I tried to install the .net component "TActionlist" in a WinForm.
>> After using "Installed .net Components"-Dialog the Component
>> appears in the Tool-Box. If I try to create an Instance of
>> "TActionlist" on the WinForm by drag & drop or double click on its
>> symbol, I get the following error message: 
>Delphi (VCL style) components have a constructor of the form
>'Create(aOwner:TComponent)', Winforms expects the constructor to be
>parameterless. You could create a subclass of TActionList, give it a
>constructor which simply calls 'inherited create(nil)' and register
>that.
>
Thanks for your help. I created a subclass from TActionlist based on a VCl-component and a subclass based on a Winform-Component. In both cases the new classes are shown in toolbox. Draging the new components to WinForm the follwing error occures:

"The object reference was not specified on an object instance."

What can I do ?

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Subject: Re: Constructor for type Borland.Vcl.ActnList.TActionList can not be found
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