A simple popup window demo using WSP in c#

May 04, 2023・2 min read

This code defines a simple C# WPF application with a main window that contains a button. When the button is clicked, a new instance of the PopupWindow class is created and shown as a modal dialog using the ShowDialog method. The PopupWindow class defines a simple popup window with a text block that displays the message “This is a popup window!“.

Note that the PopupWindow window is defined in a separate XAML file and code-behind file, and is shown as a modal dialog using the ShowDialog method to prevent the user from interacting with the main window while the popup is open.

MainWindow.xaml

<Window x:Class="PopupWindowDemo.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <Button Content="Show Popup" Click="Button_Click"/>
    </Grid>
</Window>

MainWindow.xaml.cs

using System.Windows;

namespace PopupWindowDemo
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            // Create a new instance of the popup window
            PopupWindow popupWindow = new PopupWindow();

            // Show the popup window
            popupWindow.ShowDialog();
        }
    }
}

PopupWindow.xaml

<Window x:Class="PopupWindowDemo.PopupWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="PopupWindow" Height="150" Width="300">
    <Grid>
        <TextBlock Text="This is a popup window!" HorizontalAlignment="Center" VerticalAlignment="Center"/>
    </Grid>
</Window>

PopupWindow.xaml.cs

using System.Windows;

namespace PopupWindowDemo
{
    public partial class PopupWindow : Window
    {
        public PopupWindow()
        {
            InitializeComponent();
        }
    }
}

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