inherit radform

[Sam]

I've created RadForm1 and renamed it to MotherForm and put several components on it. Then I've created new RadForm(AlterForm) and inherit it from MotherForm. 

public partial class AlterForm : MotherForm

But in AlterForm designer I've got an error

The designer could not be shown for this file because none of the classes within it can be designed. The designer inspected the following classes in the file: DropForm --- The base class 'AdminControl.MotherForm' could not be loaded. Ensure the assembly has been referenced and that all projects have been built.



Where can be a problem?

[Stefan]

Hello Jei,

Thank you for writing.

After you inherit the MotherForm, please close all designer windows and rebuild the project and the open the AlterForm in design time. 

Let me know how this works for you.

All the best,
Stefan
the Telerik team

[Sam]

I've restarted visual studio and then it started to work.

[Stefan]

Great news. I am glad everything is now OK on your end.
 
Regards,
Stefan
the Telerik team

[Hatred]

Hi just tried what u said but my child form has no controls on it when Mother form has many i check the modifiers of the controls and they're all protected what can i do ? it just load with nothing on it .. thanks in advance

[Plamen]

Hi Hatred,

I tried to reproduce the described behavior, but to no avail. My child form has the same controls as the parent form. I am attaching a sample project which demonstrates the desired behavior.

Let me know if you have additional questions.

Regards,
Plamen
the Telerik team

[Josh]

Thanks!   Note for anyone else:   In 2023, The RadForm Inherits statement is in the designer.  You need to change it there and afterward, you need to close it and do a rebuild on the project. Otherwise you will get errors opening in design view.  

 

[Dess | Tech Support Engineer, Principal]

Hi, Josh,

It is possible to create an inherited form by the Add New Item option in Visual Studio as well: