900666 : Update sample for How to add custom context menu to the WPF PdfViewer

ContextMenu/CustomContextMenu/App.xaml

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+<Application x:Class="CustomContextMenu.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:CustomContextMenu"
+             StartupUri="MainWindow.xaml">
+    <Application.Resources>
+
+    </Application.Resources>
+</Application>

ContextMenu/CustomContextMenu/App.xaml.cs

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+using System.Configuration;
+using System.Data;
+using System.Windows;
+
+namespace CustomContextMenu
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App : Application
+    {
+    }
+
+}

ContextMenu/CustomContextMenu/AssemblyInfo.cs

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+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None,            //where theme specific resource dictionaries are located
+                                                //(used if a resource is not found in the page,
+                                                // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly   //where the generic resource dictionary is located
+                                                //(used if a resource is not found in the page,
+                                                // app, or any theme specific resource dictionaries)
+)]

ContextMenu/CustomContextMenu/CustomContextMenu.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Syncfusion.PdfViewer.WPF" Version="*" />
+    <PackageReference Include="System.Drawing.Common" Version="9.0.8" />
+  </ItemGroup>
+  <Import Project="targets\MultiTargeting.targets" /> 
+</Project>

ContextMenu/CustomContextMenu/CustomContextMenu.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36401.2
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CustomContextMenu", "CustomContextMenu.csproj", "{0FAA7523-B034-4EA9-860A-A8936DFFD40E}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{0FAA7523-B034-4EA9-860A-A8936DFFD40E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0FAA7523-B034-4EA9-860A-A8936DFFD40E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{0FAA7523-B034-4EA9-860A-A8936DFFD40E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{0FAA7523-B034-4EA9-860A-A8936DFFD40E}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {BAAD6341-6945-42C7-8438-919E9DB8EB03}
+	EndGlobalSection
+EndGlobal

ContextMenu/CustomContextMenu/MainWindow.xaml

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+<Window x:Class="CustomContextMenu.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:CustomContextMenu" xmlns:PdfViewer="clr-namespace:Syncfusion.Windows.PdfViewer;assembly=Syncfusion.PdfViewer.WPF"
+        mc:Ignorable="d"
+        Title="MainWindow"
+        WindowState="Maximized">
+    <Grid>
+        <PdfViewer:PdfViewerControl x:Name="pdfViewer" />
+    </Grid>
+</Window>

ContextMenu/CustomContextMenu/MainWindow.xaml.cs

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+using Syncfusion.Windows.PdfViewer;
+using System;
+using System.Text;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+
+namespace CustomContextMenu
+{
+    /// <summary>
+    /// Interaction logic for MainWindow.xaml
+    /// </summary>
+    public partial class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            InitializeComponent();
+            pdfViewer.Load("../../../Data/Input.pdf");
+            pdfViewer.ContextMenuOpening += PdfViewer_ContextMenuOpening;
+        }
+
+        private void Pan_Click(object sender, RoutedEventArgs e)
+        {
+            pdfViewer.CursorMode = PdfViewerCursorMode.HandTool;
+        }
+
+        private void SelectZoomArea_Click(object sender, RoutedEventArgs e)
+        {
+            pdfViewer.CursorMode = PdfViewerCursorMode.MarqueeZoom;
+        }
+
+        private void FitToPageMenuItem_Click(object sender, RoutedEventArgs e)
+        {
+            pdfViewer.ZoomMode = Syncfusion.Windows.PdfViewer.ZoomMode.FitPage;
+        }
+        private void PdfViewer_ContextMenuOpening(object sender, ContextMenuOpeningEventArgs e)
+        {
+            if (e.Source == "Text Selection")
+            {
+                ContextMenu contextmenu = new ContextMenu();
+                contextmenu.FlowDirection = FlowDirection.LeftToRight;
+                contextmenu.HorizontalAlignment = HorizontalAlignment.Center;
+                MenuItem selectZoomArea = new MenuItem();
+                selectZoomArea.Header = "Select Zoom Area";
+                selectZoomArea.Click += SelectZoomArea_Click;
+                contextmenu.Items.Add(selectZoomArea);
+                MenuItem fitToPageMenuItem = new MenuItem();
+                fitToPageMenuItem.Header = "Fit to Page";
+                fitToPageMenuItem.Click += FitToPageMenuItem_Click;
+                contextmenu.Items.Add(fitToPageMenuItem);
+                MenuItem pan = new MenuItem();
+                pan.Header = "Pan";
+                pan.Click += Pan_Click;
+                contextmenu.Items.Add(pan);
+                contextmenu.IsOpen = true;
+                contextmenu.StaysOpen = true;
+                e.Handled = true;
+            }
+        }
+    }
+}

ContextMenu/CustomContextMenu/targets/MultiTargeting.targets

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+<Project>
+  <PropertyGroup>
+    <TargetFrameworks>net462;net8.0-windows;net9.0-windows</TargetFrameworks>
+    <UseWPF>true</UseWPF>
+    <GenerateAssemblyInfo>False</GenerateAssemblyInfo>
+    <GenerateDocumentationFile>True</GenerateDocumentationFile>
+    <EnableDefaultItems>True</EnableDefaultItems>
+	<EnableDefaultEmbeddedResourceItems>True</EnableDefaultEmbeddedResourceItems>	
+  </PropertyGroup>
+</Project>