Message Popup in WPF

Step 1: Create an empty WPF using Visual Studio, enter the name for the application and click on OK



Step 2: Create a button using the following code or drag and drop a button from the ToolBox of Visual Studio 2013.



Code:

<Button Content="Button" HorizontalAlignment="Left" Margin="133,120,0,0" VerticalAlignment="Top" Width="75"/>

Step 3: Name the button content and double click on the button, you will be getting this window



Enter the following code to make you click event activated with message box:

MessageBox.Show("hI How are you");

So the entire code of MainWindow.xaml.cs should be as below:

using System;
usingSystem.Collections.Generic;
usingSystem.Linq;
usingSystem.Text;
usingSystem.Threading.Tasks;
usingSystem.Windows;
usingSystem.Windows.Controls;
usingSystem.Windows.Data;
usingSystem.Windows.Documents;
usingSystem.Windows.Input;
usingSystem.Windows.Media;
usingSystem.Windows.Media.Imaging;
usingSystem.Windows.Navigation;
usingSystem.Windows.Shapes;
namespacemessageapp
{
    ///<summary>
    /// Interaction logic for MainWindow.xaml
    ///</summary>
    publicpartialclassMainWindow: Window
    {
        publicMainWindow()
        {
            InitializeComponent();
        }
        privatevoidButton_Click(object sender, RoutedEventArgs e)
        {
            MessageBox.Show("hI How are you");
        }
    }
}

Now run the WPF application: