C# generic constructor for contol type

[cloud255]

Hi,

i am trying to create a generic class (C# .NET 2.0) which accepts any control,
i am having problems creating a constructor which allows me to access the value supplied as the generic type:

public class DynamicControl<C> where C:Control

thank you

[Plater]

Why do you need this?
Anything that takes "Control" as a parameter will ALREADY take anything that inherits from control (Textbox, Label, Button, etc etc etc)

[cloud255]

I would to create a class which makes instances of controls at runtime,
further the user must be able to pick which control to add to the form.

I already have it working for adding , moving and resizing a control at runtime, the only problem is that i have to specify the type of control in code:

Control cntrl = new Button

for example.

i would like a class that will just accept a Control and apply the general methods i need to that control.

C# complains when i try to say:

Class DynmaicControl<C> where C:Control
{
  DynamicControl(Several Arguments)
  {
         C someVariable = new C(); // this causes a problem
  }
}

thanks

[Plater]

I think you need something inside the System.Reflection namesapce. I hear people use that to instansiate classes

[cloud255]

I think you need something inside the System.Reflection namesapce. I hear people use that to instansiate classes

Thanks for the advice, it pointed me in the right direction.

by the way for anyone struggling with a similiar issue:

Original attempt:

Class DynamicControl<C> Where C:Control

Solution:

Class DynamicControl<C> Where C:Control, new()

this allows you to call the deafult contsructor for the given type by simply saying: C cntrl = new C();

as far as i can tell adding new() in the class inheritence allows C# to invoke the deafult constructor for any .NET base type.