Windows Control Library Property Page problem

Question

Hi

I'm trying to do a control library. In my control library i have a class like that :

 public class Camera

    {
        private double Distance_;
        private double Far_;

        public double Distance
        {
            get
            {
                return Distance_;
            }

            set
            {
                Distance_ = value;
            }

        }

        public double Far
        {
            get
            {
                return Far_;
            }

            set
            {
                Far_ = value;
            }
        }

    }

In my class i have 2 pcs of double variable.

These codes show MyCamera in PropertyPage in C# (desing time)

 private Camera Camera_ = new Camera();
        public MyCamera Camera
        {
            get
            {
                Camera_ = new Camera();
                return Camera_;
            }
            set
            {
                Camera_ = value;
            }

        }

When i build solution i can see MyCamera in propery page but i can't see Distance and Far variables. I want to see as a treeview in property page. There should be + sign and when i press + sign , variables will shown.

How can i do this? Can someone help me.

Thanks in advance

Fatih · Answer

I change Modifiers property from private to public. But there is no change. Still MyCamera property is look disable. Then i make different test. I used SizeF instead of Camera class just for testing. After this modifcation MyCamera showed Width and Heigth parameter in Propery Page. Then i switch Camera Class to Struct. But problem is still available. I think i have use some other defination or command in my camera class(or struct). But what is that i don't know?? Code is like that public class Camera { public double Distance_; public double Far_; public Camera(double distance double far) { Distance_ = distance; Far_ = far; } public double Distance { get { return Distance_; } set { Distance_ = value; } } public double Far { get { return Far_; } set { Far_ = value; } } } public partial class TestControlLib : UserControl { private Camera Camera_; public Camera MyCamera_ { get { if (Camera_ == null) { Camera_ = new Camera(100 100); } return Camera_; } set { Camera_ = value; } } } I really want to thanx in advance one more time for your effort

Roei Bar · Answer

oh hehe thats the easy part dude just change the Modifiers Property of the Control to Public.

Fatih · Answer

Thanks for your reply. I tested it but my problem is still available. I put my Control Library on my Form. When i in View Designer mode i can change some properties of my control in design time. But MyCamera properties look like a disabled and there is no my variables (Distance and Far). I can access by using code to MyCamera. You can see in ss of my program. Thanks in advance

Roei Bar · Answer

ok a couple of things: First the Code is Incurrect here is te fixed one: private Camera Camera_ ; public Camera MyCamera_ { get { if (Camera_ == null) Camera_ = new Camera(); return Camera_; } set { Camera_ = value; } } in order to access Camera properties just do the following : MyCamera_.Distance; MyCamera_.Far; and so on