User Control + Events

namespace ImageViewer
{
    public partial class ImageViewer : UserControl
    {
        public ImageViewer()
        {
            InitializeComponent();
            this.MouseHover += new EventHandler(EvntMouseHover);
            this.MouseLeave += new EventHandler(EvntMouseLeave);
            this.PictBox.MouseHover += new EventHandler(EvntMouseHover);
            this.Txt.MouseHover += new EventHandler(EvntMouseHover);
            this.PictBox.MouseLeave += new EventHandler(EvntMouseLeave);
            this.Txt.MouseLeave += new EventHandler(EvntMouseLeave);
        }
 
        private void EvntMouseClick(object sender, EventArgs e)
        {
            this.BackColor = SystemColors.ActiveCaption;
        }
 
        private void EvntMouseHover(object sender, EventArgs e)
        {
            this.BackColor=SystemColors.Control;            
        }
 
        private void EvntMouseLeave(object sender, EventArgs e)
        {
            this.BackColor = SystemColors.Window;
        }
 
        public void SetImg(string src){
            this.PictBox.Image = Image.FromFile(src);
        }
 
        public void SetTxt(string txt)
        {
            this.Txt.Text = txt;
        }        
    }
}

 public partial class UserControl1 : UserControl
    {
        public UserControl1()
        {
            InitializeComponent();
           this.MouseHover += new EventHandler(EvntMouseHover);
           this.PictBox.MouseHover += new EventHandler(EvntMouseHover);
           this.Txt.MouseHover += new EventHandler(EvntMouseHover);
          
        }
       
        
        private void EvntMouseHover(object sender, EventArgs e)
        {
            this.BackColor = SystemColors.Control;
        }

public Form1()
        {
            InitializeComponent();
 
           UC = new UserControl1();
           UC.Location = new Point(25, 25);
           this.Controls.Add(UC);
           
 
 
           this.MouseEnter += new System.EventHandler(this.Form1_MouseEnter);
 
        }
        UserControl1 UC;
       
        private void Form1_MouseEnter(object sender, EventArgs e)
        {
            UC.BackColor = SystemColors.Window;
        }