在 WPF 中以编程方式将用户控件/页面添加到 Windows xaml

Question

我想在 Window1.xaml（主窗口）中以编程方式在两个用户控件 AddUsers.xaml（用户控件）和 Viewusers.xaml（用户控件）之间切换。

我正在尝试通过 Window1.xaml 中的按钮事件切换用户控件。

我的窗口1。 xaml 像这样

 <Window x:Class="SwitchUsers.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow" Height="500" Width="525">
<Grid>
    <Grid.RowDefinitions>
        <RowDefinition Height="100" />
        <RowDefinition Height="400*" />
    </Grid.RowDefinitions>
    <StackPanel Grid.Row="0" >
    <Button Content="Swithc User Control " Height="23" HorizontalAlignment="Right"     Margin="0,40,284,0" Name="btnSwittch" VerticalAlignment="Center" Width="168" />
    </StackPanel>

    <StackPanel Grid.Row="1" >
       <!--Here I want to display  two user controls by switching from button on Top -->            
    </StackPanel>
</Grid> 

我有两个用户控件 addUser.xaml 和 viewUser.xaml

addUser。 xaml 代码：

 <UserControl x:Class="SwitchUsers.addUser"
         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" 
         mc:Ignorable="d" 
         d:DesignHeight="300" d:DesignWidth="300" Loaded="UserControl_Loaded">
     <Grid>
    <TextBlock Height="23" HorizontalAlignment="Left" Margin="29,79,0,0"  Name="textBlock1" Text=" Enter Your Name" VerticalAlignment="Top" />
    <TextBlock Height="23" HorizontalAlignment="Left" Margin="29,105,0,0" Name="textBlock2" Text="Enter Your Password" VerticalAlignment="Top" />
    <TextBox Height="23" HorizontalAlignment="Left" Margin="144,76,0,0" Name="txtBxName" VerticalAlignment="Top" Width="120" />
    <TextBox Height="23" HorizontalAlignment="Left" Margin="144,105,0,0" Name="txtBxPassword" VerticalAlignment="Top" Width="120" />
    <Button Content="Log In" Height="23" HorizontalAlignment="Left" Margin="171,160,0,0" Name="btnLogin" VerticalAlignment="Top" Width="93" />
    </Grid>
    </UserControl>

和我的第二个用户控件 viewUser.xaml

  <UserControl x:Class="SwitchUsers.viewUser"
         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" 
         mc:Ignorable="d" 
         d:DesignHeight="300" d:DesignWidth="300">
   <Grid>
    <!--    I hidden  all UI Controls here to keep code short -->    
   </Grid>
</UserControl>

Answer 1

首先你需要给你的堆栈面板一个名称

<StackPanel Name="myStack"  Grid.Row="1" >
</StackPanel>

然后你需要类似的东西

public partial class MainWindow : Window
{
    private addUser _addUser;
    private viewUser _viewUser;
    private Control _currentUser;

    public MainWindow()
    {
        InitializeComponent();

        _addUser = new addUser();
        _viewUser = new viewUser();
        _currentUser = _viewUser;
        myStack.Children.Add(_currentUser);
    }

    private void button1_Click(object sender, RoutedEventArgs e)
    {
        myStack.Children.Clear();
        if (_currentUser == _addUser)
        {
            _currentUser = _viewUser;
        }
        else
        {
            _currentUser = _addUser;
        }
        myStack.Children.Add(_currentUser);
    }

}