WPF控件从一个窗口移动到另一个窗口，特别适合实时刷新的

自己做了一下，直接传引用，结果不显示。搜了一下，大概知道原因了----同一个控件不能同时位于两个容器内，即传递到子窗口前，要先从父窗体移除。

网上的方案太麻烦，所以，分享下自己的。

父窗体前台：

<Button Content="全屏" Command="{Binding FullScreenCommand}" CommandParameter="{Binding ElementName=chartContainer}"/>
 
<Grid Name="chartContainer">
                                <Grid Name="chart">
                                </Grid>

　　父窗体后台：

FullScreenCommand = new CommandBase(
                p =>
                {
                    var grid = p as Grid;
                    var form = new FullScreenChartView();
                    form.ParentGrid = grid;
                    if (grid.Name == "chartRealTimeContainer")
                    {
                        grid.Children.Remove(_realtimeGrid);
                        form.Chart.Children.Add(_realtimeGrid);
                    }
                    else
                    {
                        grid.Children.Remove(_statGrid);
                        form.Chart.Children.Add(_statGrid);
                    }
                    form.Show();
                });

　　因为我是根据不同条件传不同的控件，所以用了if.

子窗体前台：

<Grid>
    <Grid Grid.Row="1" Name="Chart"/>
    <Button Content="X" HorizontalAlignment="Right" VerticalAlignment="Top" FontSize="20" Width="40" Height="40" Click="Button_Click"/>
</Grid>

　　子窗体后台：

private void Button_Click(object sender, RoutedEventArgs e)
       {
           var grid = Chart.Children[0];
           Chart.Children.Remove(grid);
           ParentGrid.Children.Add(grid);
           Close();
       }