Updated the sample and README file.

Author: SweathaBharathi

DataGrid_PrintSpecificPages/App.xaml

@@ -1,15 +1,18 @@
-<Application
-    x:Class="WinUIDemoApp.App"
+<?xml version="1.0" encoding="utf-8"?>
+<Application
+    x:Class="SfDataGrid_Demo.App"
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:local="using:WinUIDemoApp">
+    xmlns:local="using:SfDataGrid_Demo">
     <Application.Resources>
+
         <ResourceDictionary>
             <ResourceDictionary.MergedDictionaries>
                 <XamlControlsResources xmlns="using:Microsoft.UI.Xaml.Controls" />
-                <!-- Other merged dictionaries here -->
+                 <!--Other merged dictionaries here--> 
             </ResourceDictionary.MergedDictionaries>
-            <!-- Other app resources here -->
+             <!--Other app resources here-->
         </ResourceDictionary>
+           
     </Application.Resources>
 </Application>

DataGrid_PrintSpecificPages/App.xaml.cs

@@ -3,27 +3,28 @@
 using System.IO;
 using System.Linq;
 using System.Runtime.InteropServices.WindowsRuntime;
-using Windows.ApplicationModel;
-using Windows.ApplicationModel.Activation;
-using Windows.Foundation;
-using Windows.Foundation.Collections;
 using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Controls;
 using Microsoft.UI.Xaml.Controls.Primitives;
 using Microsoft.UI.Xaml.Data;
 using Microsoft.UI.Xaml.Input;
 using Microsoft.UI.Xaml.Media;
 using Microsoft.UI.Xaml.Navigation;
+using Microsoft.UI.Xaml.Shapes;
+using Windows.ApplicationModel;
+using Windows.ApplicationModel.Activation;
+using Windows.Foundation;
+using Windows.Foundation.Collections;
 
 // To learn more about WinUI, the WinUI project structure,
 // and more about our project templates, see: http://aka.ms/winui-project-info.
 
-namespace WinUIDemoApp
+namespace SfDataGrid_Demo
 {
     /// <summary>
     /// Provides application-specific behavior to supplement the default Application class.
     /// </summary>
-    sealed partial class App : Application
+    public partial class App : Application
     {
         /// <summary>
         /// Initializes the singleton application object.  This is the first line of authored code
@@ -32,72 +33,21 @@ sealed partial class App : Application
         public App()
         {
             this.InitializeComponent();
-            this.Suspending += OnSuspending;
         }
 
         /// <summary>
-        /// Invoked when the application is launched normally by the end user.  Other entry points
-        /// will be used such as when the application is launched to open a specific file.
+        /// Invoked when the application is launched.
         /// </summary>
-        /// <param name="e">Details about the launch request and process.</param>
-        protected override void OnLaunched(Microsoft.UI.Xaml.LaunchActivatedEventArgs e)
+        /// <param name="args">Details about the launch request and process.</param>
+        protected override void OnLaunched(Microsoft.UI.Xaml.LaunchActivatedEventArgs args)
         {
-            Frame rootFrame = Window.Current.Content as Frame;
-
-            // Do not repeat app initialization when the Window already has content,
-            // just ensure that the window is active
-            if (rootFrame == null)
-            {
-                // Create a Frame to act as the navigation context and navigate to the first page
-                rootFrame = new Frame();
-
-                rootFrame.NavigationFailed += OnNavigationFailed;
-
-                if (e.UWPLaunchActivatedEventArgs.PreviousExecutionState == ApplicationExecutionState.Terminated)
-                {
-                    //TODO: Load state from previously suspended application
-                }
-
-                // Place the frame in the current Window
-                Window.Current.Content = rootFrame;
-            }
-
-            if (e.UWPLaunchActivatedEventArgs.PrelaunchActivated == false)
-            {
-                if (rootFrame.Content == null)
-                {
-                    // When the navigation stack isn't restored navigate to the first page,
-                    // configuring the new page by passing required information as a navigation
-                    // parameter
-                    rootFrame.Navigate(typeof(MainPage), e.Arguments);
-                }
-                // Ensure the current window is active
-                Window.Current.Activate();
-            }
+            m_window = new MainWindow();
+            page = new Page();
+            m_window.Activate();
         }
 
-        /// <summary>
-        /// Invoked when Navigation to a certain page fails
-        /// </summary>
-        /// <param name="sender">The Frame which failed navigation</param>
-        /// <param name="e">Details about the navigation failure</param>
-        void OnNavigationFailed(object sender, NavigationFailedEventArgs e)
-        {
-            throw new Exception("Failed to load Page " + e.SourcePageType.FullName);
-        }
+        public static Window? m_window;
+        public static Page? page;
 
-        /// <summary>
-        /// Invoked when application execution is being suspended.  Application state is saved
-        /// without knowing whether the application will be terminated or resumed with the contents
-        /// of memory still intact.
-        /// </summary>
-        /// <param name="sender">The source of the suspend request.</param>
-        /// <param name="e">Details about the suspend request.</param>
-        private void OnSuspending(object sender, SuspendingEventArgs e)
-        {
-            var deferral = e.SuspendingOperation.GetDeferral();
-            //TODO: Save application state and stop any background activity
-            deferral.Complete();
-        }
     }
 }