[Serializable]
public class MyVisualHost : Canvas
{
public List<Visual> children = new List<Visual>();

public MyVisualHost()
{


}
private bool change_figur_position;
public Visual active;
BindingExpressionBase bb;
myline line;
DrawingVisual drawline;
private Point drawlinepoint;
public bool drawlin=false;
private string help;
public void addpeople(Point p)
{
people peopl = new people(p);
children.Add(peopl);

base.AddLogicalChild(peopl);
base.AddVisualChild(peopl);
}
public void removechildren(Visual vis)
{
this.RemoveVisualChild(vis);
this.children.Remove(vis);
this.RemoveVisualChild(vis);
}
public void addline(parent n , parent m)
{
help += "a";

//n.pp = new Point(n.pp.X-20, n.pp.Y-20);

line = new myline(n.pp,m.pp,help);

children.Add(line);

base.AddLogicalChild(line);
base.AddVisualChild(line);

line.bind = new Binding("pp");
line.bind.Source =n;
line.bind.Mode = BindingMode.TwoWay;
bb= BindingOperations.SetBinding(line, line.xxproperty, line.bind);
line.bind1 = new Binding("pp");
line.bind1.Source = m;

BindingOperations.SetBinding(line, line.xx2property, line.bind1);

}
public void add_ellipse(Point p)
{
myellipse visual = new myellipse(p);
active = visual;

children.Add(visual);

base.AddVisualChild(visual);
base.AddLogicalChild(visual);


}
public parent find_figur(Point p)
{
DependencyObject obj = VisualTreeHelper.HitTest(this, p).VisualHit;
if ((obj.GetType().ToString() == "diplom_my.people") || (obj.GetType().ToString() == "diplom_my.myellipse"))
return (parent) obj ;
return null;
}

private void moveline(myline line, Point p)
{
if ((line.p1.X + 6 > p.X) && (line.p1.X - 6 < p.X) && (line.p1.Y + 6 > p.Y) && (line.p1.X - 6 < p.X))
{
line.p1 = p;

}
else

if ((line.p2.X + 2 < p.X) && (line.p2.X - 2 > p.X) && (line.p2.Y + 2 < p.Y) && (line.p2.X - 2 > p.Y))
{
line.p2 = p;

}
}
protected override void OnMouseLeftButtonUp(System.Windows.Input.MouseButtonEventArgs e)
{
base.OnMouseLeftButtonUp(e);
if (change_figur_position == true)
{
change_figur_position = false;
active = null;
}
if (drawlin==true)
{
children.Remove(drawline);
this.RemoveVisualChild(drawline);
drawline = null;
drawlin = false;

if ((find_figur(e.GetPosition(this)) != null) && (find_figur(drawlinepoint) != (find_figur(e.GetPosition(this)))))

addline(find_figur(drawlinepoint), find_figur(e.GetPosition(this)));
drawlinepoint = new Point(0, 0);
}
}

protected override void OnMouseMove(System.Windows.Input.MouseEventArgs e)
{
base.OnMouseMove(e);
if ((drawlin==true) && (drawlinepoint!=new Point(0,0)))
{
DrawingContext cn = drawline.RenderOpen();
Pen p=new Pen(Brushes.Black,3);
cn.DrawLine(p,drawlinepoint,e.GetPosition(this));
cn.Close();

}
else
{
if (change_figur_position == true)
{
if (active.GetType().ToString() == "diplom_my.people")
{
((people)active).pp = e.GetPosition(this);
((people)active).move(e.GetPosition(this));
}
if (active.GetType().ToString() == "diplom_my.myellipse")
{
((myellipse)active).pp = e.GetPosition(this);
((myellipse)active).move(e.GetPosition(this));
}
if (active.GetType().ToString() == "diplom_my.myline")
{
moveline((myline)active, e.GetPosition(this));
}
}
}
}

protected override void OnMouseLeftButtonDown(System.Windows.Input.MouseButtonEventArgs e)
{
base.OnMouseLeftButtonDown(e);
if (drawlin == true)
{
if ((find_figur(e.GetPosition(this)) != null) && ((find_figur(e.GetPosition(this))).GetType().ToString() != "diplom_my.myline"))
{
drawlinepoint = e.GetPosition(this);
drawline = new DrawingVisual();
this.AddVisualChild(drawline);
children.Add(drawline);
}

}
if (this.find_figur(e.GetPosition(this)) != null)
{

active = this.find_figur(e.GetPosition(this));
change_figur_position = true;
}
else
change_figur_position = false;
}
protected override int VisualChildrenCount
{
get { return children.Count; }
}

protected override Visual GetVisualChild(int index)
{
if (index < 0 || index >= children.Count)
{
throw new ArgumentOutOfRangeException();
}

return children[index];
}

помогите настроить сериализацию!

а что непонятного.нужно сериализовать класс.хоть каким нибудь способом.
XmlSerializer xml=new XmlSerializer(typeof(MyVisualHost));
using (Stream s = File.OpenWrite(@"D:/AA.xml"))
xml.Serialize(s, myVisualHost1);
выдаёт ошибку
There was an error reflecting type 'ррр.MyVisualHost'.

Cannot serialize member System.Windows.Input.InputBinding.Command of type System.Windows.Input.ICommand because it is an interface