WPF通过xaml初始化一个类的对象后，从代码怎么访问这个对象？
// MyClass.cs
namespace SimpleBinding
{
  class MyClass
  {
  private string name;

  public string Name
  {
  get { return name; }
  set { name = value; }
  }
  private int age;

  public int Age
  {
  get { return age; }
  set { age = value; }
  }
  }
}

// Window1.xaml
<Window x:Class="SimpleBinding.Window1"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  xmlns:sb="clr-namespace:SimpleBinding"
  Title="Window1" Height="300" Width="300">
  <Grid>
  <Grid.Resources>
  <sb:MyClass x:Key="MyKey" Name="AdoDotNet" Age="20" />
  </Grid.Resources>
  <Grid.DataContext>
  <Binding Source="{StaticResource MyKey}" />
  </Grid.DataContext>
  ...

这种情况下怎样从代码访问通过xmal初始化的这个对象？

------解决方案--------------------
<Grid Name="myGrid" ...>

//.cs

MyClass cls = myGrid.Resources["MyKey"] as MyClass;
// cls.Name, cls.Age