[Lazarus] What GetChildParent does in designer and reader?

[Fabio Luis Girardi]

I'll try this approach. At the moment this is a good workaround... :)
Em 04/03/2014 21:22, "luiz americo pereira camara" <luizmed at oi.com.br>
escreveu:

> Hi Fabio,
>
> I'd like to share how i  implemented similar behavior of TDbCtrlGrid, so
> maybe you can be interested. If not just ignore.
>
> First i create a TFrame in Lazarus put the controls that i need to be
> there.
>
> In the control i want to display the instances of the frame i create at
> runtime according to a configuration
>
> This way i have the easy of use of Lazarus designer with a lot of
> flexibility.
>
> I created an control (
> https://code.google.com/p/luipack/source/browse/trunk/luicontrols/jsonmediators.pas) that does the above. The frame class (TJSONBooleanRadioButtonViewFrame)
> is hardcoded but it can be decoupled by using an interface.
>
> To implement TDbCtrlGrid like control with this approach seems easier then
> you are trying:
>
> - Define an interface with what you need to configure the DbCtrls like
>   IDbCtrlItem = interface
>   SetDatasource(Datasource: TDataSource);
>   end;
> - Create a control that has a TFrameClass property
> - When the TFrameClass is set, check if implements IDbCtrlItem
> - At runtime create as many TFrameClass instances as needed configuring
> them at initialization through the IDbCtrlItem interface
> - Bind to dataset events and update the controls accordingly
>
> Luiz
>
>
> 2014-03-04 10:41 GMT-03:00 Fabio Luis Girardi <fluisgirardi at gmail.com>:
>
>> Hi Mattias!!
>>
>> This solution don't work too.
>>
>>
>> 2014-03-04 9:46 GMT-03:00 Fabio Luis Girardi <fluisgirardi at gmail.com>:
>>
>> Maybe RemoveHandlerAddClicked is a replacement?
>>>
>>>
>>> 2014-03-04 9:43 GMT-03:00 Fabio Luis Girardi <fluisgirardi at gmail.com>:
>>>
>>> mytesthelper.pas(40,20) Error: identifier idents no member
>>>> "RemoveHandlerComponentAdded"
>>>>
>>>> Lazarus 1.3
>>>>
>>>>
>>>>
>>>> 2014-03-03 18:56 GMT-03:00 Mattias Gaertner <nc-gaertnma at netcologne.de>
>>>> :
>>>>
>>>> On Mon, 3 Mar 2014 16:47:30 -0300
>>>>> Fabio Luis Girardi <fluisgirardi at gmail.com> wrote:
>>>>>
>>>>> > Hi!!
>>>>> >
>>>>> > Attached the code of my prototype of TDBCtrlGrid. It works as
>>>>> expected on
>>>>> > Delphi (except the function GetDesignerDropTarget that don't exists
>>>>> on
>>>>> > Delphi TWinControl), but it don't works as expected on Lazarus.
>>>>>
>>>>> On second thought the LCL method is not very flexible.
>>>>> I added a general designer event.
>>>>>
>>>>> See
>>>>>
>>>>> http://wiki.lazarus.freepascal.org/Extending_the_IDE#Example:_When_dropping_a_new_component_move_control_to_a_child
>>>>>
>>>>> Please test.
>>>>>
>>>>> Mattias
>>>>>
>>>>> --
>>>>> _______________________________________________
>>>>> Lazarus mailing list
>>>>> Lazarus at lists.lazarus.freepascal.org
>>>>> http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> The best regards,
>>>>
>>>> Fabio Luis Girardi
>>>> PascalSCADA Project
>>>> http://sourceforge.net/projects/pascalscada
>>>> http://www.pascalscada.com
>>>>
>>>
>>>
>>>
>>> --
>>> The best regards,
>>>
>>> Fabio Luis Girardi
>>> PascalSCADA Project
>>> http://sourceforge.net/projects/pascalscada
>>> http://www.pascalscada.com
>>>
>>
>>
>>
>> --
>> The best regards,
>>
>> Fabio Luis Girardi
>> PascalSCADA Project
>> http://sourceforge.net/projects/pascalscada
>> http://www.pascalscada.com
>>
>> --
>> _______________________________________________
>> Lazarus mailing list
>> Lazarus at lists.lazarus.freepascal.org
>> http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
>>
>>
>
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