Usercontrols that inherit from abstract class

c# abstract-class designer windows-forms-designer
Maxim Gershkovich picture Maxim Gershkovich · Jun 5, 2011 · Viewed 9.4k times · Source

I've got a usercontrol that inherits from an abstract class. Basically looks like this.

class SimpleSlideView : View
{

}

public abstract class View : UserControl
{

}

The project compiles and runs fine. I can take the usercontrol (from the toolbox) and drag it into a form and it is displayed in the designer correctly. However, if I try and open the SimpleSlideView control itself in the designer I receive the following error:

The designer must create an instance of type 'Animation.View' but it cannot because the type is declared as abstract.

What have I missed?

Answer

Alex Aza picture Alex Aza · Jun 5, 2011

You can find possible solution here: How can I get Visual Studio 2008 Windows Forms designer to render a Form that implements an abstract base class?

Related questions

Constructor of an abstract class in C#

Why is it possible to write constructor for an abstract class in C#? As far as I know we can't instantiate an abstract class.. so what is it for? You can't instantiate the class, right?

Read More
Interfaces vs. abstract classes

In C#, when should you use interfaces and when should you use abstract classes? What can be the deciding factor?

Read More
What's the difference between an abstract class and an interface?

Suppose we have two methods M1() and M2() in an interface. An abstract class also has just the same two abstract methods. If any class implemented this interface or inherited from the abstract class, it will have to implement both …

Read More