使用XamlReader在后台代码中动态加载xaml

T LoadXAMLAndGetShape<T>(string url)
    {
        string xaml = string.Empty;

        StreamResourceInfo sri = Application.GetResourceStream(
                                    new Uri(url, UriKind.Relative));

        using (StreamReader sr = new StreamReader(sri.Stream))
        {
            xaml = sr.ReadToEnd();
        }

        T shape = (T)XamlReader.Load(xaml);

        return shape;
    }

myGrid = LoadXAMLAndGetShape<Grid>(
        "/wp_trade;component/MetroControls/fundsHoldPositionView.xaml");