Cannot add child control to SplitContainer from windows forms designer

[Oono Kouichi]

Hi, I am using SplitContainer(SplitContainerAdv) with windows forms designer of Visual Studio2022. 

My problem is, I cannot add child control to the container by drag and drop from toolbox.

Also, I cannot add control from document outline window.

Because of this I almost impossible to use the container. 

I had no problem when I used .NET Framework. I'm now using .NET 7.

Is this a bug? 

Is there a workaround?
Thanks in advance.

[BagavathiPerumal Apranandham]

Hi Oono Kouichi,


We are able to reproduce the reported issue. We will check and update you on or before 27th October 2023. We appreciate your patience until then.

Regards,
Bagavathi Perumal A

[BagavathiPerumal Apranandham]

Hi Oono Kouichi,

Sorry for the delay in getting back to you.


We are able to reproduce the reported issue. Currently, we are checking the reported issue with source. We will check and update you on or before 02nd November 2023. We appreciate your patience until then.

Regards,
Bagavathi Perumal A

[BagavathiPerumal Apranandham]

Hi Oono Kouichi,

We regret to inform you that currently, designer functionalities are not fully supported in the NetCore platform. We have already logged a feature request for the same. We will implement this feature in any of our upcoming releases.

At the planning stage for every release cycle, we review all open features and identify features for implementation based on specific parameters including product vision, technological feasibility, and customer interest. We will let you know when this feature is implemented. We appreciate your patience until then.

Feedback link: Designer support for controls in .NET Core 3.1, .NET 5 and .NET 6 in WinForms | Feedback Portal (syncfusion.com)

If you have any more specifications/suggestions for the feature request, you can add it as a comment in the portal and cast your vote to make it count.

Regards,
Bagavathi Perumal A