WPF CM框架下點擊不同的按鈕切換到不同的界面

1.View中加入控件

<UserControl x:Class="WinTab.View.TabControl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:cal="http://www.caliburnproject.org"
             xmlns:vm="clr-namespace:WinTab.View"
             xmlns:me="clr-namespace:WinTab.ViewModel"
             mc:Ignorable="d" 
             d:DesignHeight="300" d:DesignWidth="300">
    <UserControl.DataContext>
        <me:TabControlViewModel></me:TabControlViewModel>
    </UserControl.DataContext>
    <Grid>
        <DockPanel>
            <Button Height="60" Width="100" DockPanel.Dock="Top" cal:Message.Attach="[Event Click]=[Action Btn1Click($view,$eventArgs)]"></Button>
            <Button Height="60" Width="100" DockPanel.Dock="Bottom" cal:Message.Attach="[Event Click]=[Action Btn2Click($view,$eventArgs)]"></Button>
            <StackPanel>
                <ContentControl Content="{Binding ConVM}"></ContentControl>
            </StackPanel>
        </DockPanel> 
    </Grid>
</UserControl>

2.在對應的ViewModel中綁定不同的View

public class TabControlViewModel:PropertyChangedBase
    {
        public void Btn1Click(object sender,RoutedEventArgs e)
        {

            ConVM = new Tab1View();
        }

        public void Btn2Click(object sender, RoutedEventArgs e)
        {
            ConVM = new Tab2View();
        }



        private object conVM;
        public object ConVM
        {
            get { return conVM; }
            set
            {
                conVM = value;
                NotifyOfPropertyChange(() => ConVM);
            }
        }
    }