How to open a new XAML page in the same window

Question

I have two XAML pages and when you click a button in one, the other page opens. My code is:

private void cookingButton(object sender, RoutedEventArgs e)
{
    CookingMenu cooking = new CookingMenu();
    cooking.Show();
}

CookingMenu is the name of the XAML page. This code opens the page in a new window but is there any way to open the page in the same window? Both the pages are the same size.

Answer 1

Hope this helps:

App.xaml.cs

public partial class App : Application
{
    public static MainWindow ParentWindowRef;
}

MainWindow.xaml

<Window x:Class="MultiplePageOpeninSameScreen.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:MultiplePageOpeninSameScreen"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525" Loaded="Window_Loaded">
    <DockPanel>
        <Frame Name="ParentFrame"/>
    </DockPanel>
</Window>

MainWindow.xaml.cs

private void Window_Loaded(object sender, RoutedEventArgs e)
{
    App.ParentWindowRef = this;
    this.ParentFrame.Navigate(new Page1());
}

Page1.xaml

<Page x:Class="MultiplePageOpeninSameScreen.Page1"
      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:local="clr-namespace:MultiplePageOpeninSameScreen"
      mc:Ignorable="d" 
      d:DesignHeight="300" d:DesignWidth="300"
      Title="Page1">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="*"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <TextBlock Name="TxtBlockSomeTxt" Text="This is Page One" VerticalAlignment="Center" HorizontalAlignment="Center"/>
        <Button Grid.Row="1" Name="BtnGoToPageTwo" Content="Go To Page 2" Click="BtnGoToPageTwo_Click" VerticalAlignment="Center" HorizontalAlignment="Center"></Button>
    </Grid>
</Page>

Page1.xaml.cs

private void BtnGoToPageTwo_Click(object sender, RoutedEventArgs e)
{
    App.ParentWindowRef.ParentFrame.Navigate(new Page2());
}

Page2.xaml

<Page x:Class="MultiplePageOpeninSameScreen.Page2"
      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:local="clr-namespace:MultiplePageOpeninSameScreen"
      mc:Ignorable="d" 
      d:DesignHeight="300" d:DesignWidth="300"
      Title="Page2">

    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="*"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <TextBlock Name="TxtBlockSomeTxt" Text="This is Page Two" VerticalAlignment="Center" HorizontalAlignment="Center"/>
        <Button Grid.Row ="1" Name="BtnGoToPageOne" Content="Go To Page One" Click="BtnGoToPageOne_Click" HorizontalAlignment="Center" VerticalAlignment="Center"></Button>
    </Grid>
</Page>

Page2.xaml.cs

private void BtnGoToPageOne_Click(object sender, RoutedEventArgs e)
{
    App.ParentWindowRef.ParentFrame.Navigate(new Page1());
}