how_to_print_wpf_treegrid_with_pdfviewercontrol

Author: saravanan.ayyanar

Custom Printing/PrintingDemo/App.config

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+<?xml version="1.0"?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
+    </startup>
+</configuration>

Custom Printing/PrintingDemo/App.ico

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

Custom Printing/PrintingDemo/App.xaml

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+#region Copyright Syncfusion Inc. 2001 - 2018
+// Copyright Syncfusion Inc. 2001 - 2018. All rights reserved.
+// Use of this code is subject to the terms of our license.
+// A copy of the current license can be obtained at any time by e-mailing
+// licensing@syncfusion.com. Any infringement will be prosecuted under
+// applicable laws. 
+#endregion
+using System;
+using System.Collections.Generic;
+using System.Configuration;
+using System.Data;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace PrintingDemo
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App : Application
+    {
+        public App()
+        {
+            Syncfusion.Licensing.SyncfusionLicenseProvider.RegisterLicense(Syncfusion.Licensing.DemoCommon.FindLicenseKey());
+        }
+    }
+}

Custom Printing/PrintingDemo/App.xaml.cs

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+#region Copyright Syncfusion Inc. 2001-2018.
+// Copyright Syncfusion Inc. 2001-2018. All rights reserved.
+// Use of this code is subject to the terms of our license.
+// A copy of the current license can be obtained at any time by e-mailing
+// licensing@syncfusion.com. Any infringement will be prosecuted under
+// applicable laws. 
+#endregion
+using Microsoft.Win32;
+using Syncfusion.Pdf;
+using Syncfusion.Pdf.Graphics;
+using Syncfusion.Pdf.Grid;
+using Syncfusion.Pdf.Parsing;
+using Syncfusion.UI.Xaml.TreeGrid;
+using Syncfusion.UI.Xaml.TreeGrid.Converter;
+using PrintingDemo.Helpers;
+using Syncfusion.Windows.PdfViewer;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Input;
+
+namespace PrintingDemo
+{
+    public static class Commands
+    {
+        static Commands()
+        {
+            CommandManager.RegisterClassCommandBinding(typeof(SfTreeGrid), new CommandBinding(PrintTreeGrid, OnExecutePrintTreeGrid));
+        }
+
+        #region ExportToExcel Command
+
+        public static RoutedCommand PrintTreeGrid = new RoutedCommand("PrintTreeGrid", typeof(SfTreeGrid));
+
+        private static void OnExecutePrintTreeGrid(object sender, ExecutedRoutedEventArgs args)
+        {
+            var treeGrid = args.Source as SfTreeGrid;
+            if (treeGrid == null) return;
+            try
+            {
+                var options = new TreeGridPdfExportingOptions();               
+                options.AllowIndentColumn = true;
+                options.FitAllColumnsInOnePage = true;
+
+                var document = treeGrid.ExportToPdf(options, true);
+
+                PdfViewerControl pdfViewer = new PdfViewerControl();
+                MemoryStream stream = new MemoryStream();
+                document.Save(stream);
+                PdfLoadedDocument ldoc = new PdfLoadedDocument(stream);
+                pdfViewer.Load(ldoc);
+                // if you want to  show the pdf viewer window. Please enable the below line,
+                //MainWindow pdfPage = new MainWindow();
+                //pdfPage.Content = pdfViewer;
+                //pdfPage.Show();
+                pdfViewer.Print(true);
+
+            }
+            catch (Exception)
+            {
+
+            }
+        }
+
+        #endregion
+
+    }
+}

Custom Printing/PrintingDemo/Helpers/Commands.cs

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+using Syncfusion.Pdf.Grid;
+using Syncfusion.UI.Xaml.TreeGrid;
+using Syncfusion.UI.Xaml.TreeGrid.Converter;
+
+namespace PrintingDemo.Helpers
+{
+    public class TreeGridCustomPdfConverter : TreeGridToPdfConverter
+    {
+        internal bool _excludeNonExpandedNodes;
+        public TreeGridCustomPdfConverter(bool excludeNonExpandedNodes) :base()
+        {
+            _excludeNonExpandedNodes = excludeNonExpandedNodes;
+        }
+        /// <summary>
+        /// ExportNodes to PDF
+        /// </summary>
+        /// <param name="treeGrid"></param>
+        /// <param name="nodes"></param>
+        /// <param name="pdfGrid"></param>
+        /// <param name="pdfExportingOptions"></param>
+        protected override void ExportNodesToPdf(SfTreeGrid treeGrid, TreeNodes nodes, PdfGrid pdfGrid, TreeGridPdfExportingOptions pdfExportingOptions)
+        {
+            if (!_excludeNonExpandedNodes)
+            {
+                base.ExportNodesToPdf(treeGrid, nodes, pdfGrid, pdfExportingOptions);
+            }
+            else
+            {
+                for (int i = 0; i < nodes.Count; i++)
+                {
+                    TreeNode node = nodes[i];
+                    ExportNodeToPdf(treeGrid, node, pdfGrid, pdfExportingOptions);
+                    if (node.IsExpanded && node.HasChildNodes)
+                    {
+                        node.PopulateChildNodes();
+                        ExportNodesToPdf(treeGrid, node.ChildNodes, pdfGrid, pdfExportingOptions);
+                    }
+                }
+            }
+        }
+    }
+}

Custom Printing/PrintingDemo/Helpers/TreeGridCustomPdfConverter.cs

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+using Syncfusion.Pdf;
+using Syncfusion.UI.Xaml.TreeGrid;
+using Syncfusion.UI.Xaml.TreeGrid.Converter;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PrintingDemo.Helpers
+{
+    public static class TreeGridCustomPdfExportExtension
+    {
+        /// <summary>
+        /// Export to PDF by excluding the non expanded nodes
+        /// </summary>
+        /// <param name="treeGrid"></param>
+        /// <param name="exportingOptions"></param>
+        /// <param name="excludeNonExpandedNodes"></param>
+        /// <returns></returns>
+        public static PdfDocument ExportToPdf(this SfTreeGrid treeGrid, TreeGridPdfExportingOptions exportingOptions, bool excludeNonExpandedNodes)
+        {
+            if (excludeNonExpandedNodes)
+            {
+                TreeGridCustomPdfConverter converter = new TreeGridCustomPdfConverter(excludeNonExpandedNodes);
+                var pdfDocument = converter.ExportToPdf(treeGrid, exportingOptions);
+                converter = null;
+                return pdfDocument;
+            }
+            else
+                return treeGrid.ExportToPdf(exportingOptions);
+        }
+    }
+}

Custom Printing/PrintingDemo/Helpers/TreeGridPdfExportExtension.cs

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+<syncfusion:ChromelessWindow x:Class="PrintingDemo.MainWindow"
+                             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+                             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+                             xmlns:interactivity="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"
+                             xmlns:local="clr-namespace:PrintingDemo"
+                             xmlns:syncfusion="http://schemas.syncfusion.com/wpf"
+                             syncfusion:LayoutControl.SetMetroMode="True"
+                             Icon="App.ico">
+    <syncfusion:ChromelessWindow.DataContext>
+        <local:EmployeeDetailsRepository />
+    </syncfusion:ChromelessWindow.DataContext>
+
+    <Grid>
+
+        <syncfusion:LayoutControl HeaderDescriptionText="This sample showcases how to print the TreeGrid content."
+                                  HeaderText="Printing Demo"
+                                  LayoutMode="Metro"
+                                  UserOptionsVisibility="Visible">
+            <syncfusion:LayoutControl.GridView>
+                <syncfusion:SfTreeGrid Name="treeGrid"
+                                       AutoExpandMode="RootNodesExpanded"
+                                       AutoGenerateColumns="False"
+                                       ChildPropertyName="ReportsTo"
+                                       ItemsSource="{Binding EmployeeDetails}"
+                                       ParentPropertyName="ID"
+                                       SelfRelationRootValue="-1">
+
+                    <syncfusion:SfTreeGrid.Columns>
+                        <syncfusion:TreeGridTextColumn HeaderText="First Name" MappingName="FirstName" />
+                        <syncfusion:TreeGridTextColumn HeaderText="Last Name" MappingName="LastName" />
+                        <syncfusion:TreeGridTextColumn HeaderText="Employee ID"
+                                                       MappingName="ID"
+                                                       TextAlignment="Left" />
+                        <syncfusion:TreeGridTextColumn MappingName="Title" />
+                        <syncfusion:TreeGridTextColumn MappingName="City" />
+                        <syncfusion:TreeGridCurrencyColumn CurrencyDecimalDigits="0"
+                                                           CurrencySymbol="$"
+                                                           MappingName="Salary" />
+                        <syncfusion:TreeGridTextColumn HeaderText="Reports To" MappingName="ReportsTo" />
+                    </syncfusion:SfTreeGrid.Columns>
+
+                </syncfusion:SfTreeGrid>
+
+            </syncfusion:LayoutControl.GridView>
+            <syncfusion:LayoutControl.UserOptionsView>
+                <syncfusion:UserOptions Grid.Column="1" HeaderText="Options">
+                    <StackPanel Margin="5">
+                        <Button Width="150"
+                                Margin="6"
+                                Command="local:Commands.PrintTreeGrid"
+                                CommandTarget="{Binding GridView,
+                                                        RelativeSource={RelativeSource Mode=FindAncestor,
+                                                                                       AncestorType={x:Type syncfusion:LayoutControl}}}"
+                                Content="Print TreeGrid" />
+                    </StackPanel>
+                </syncfusion:UserOptions>
+            </syncfusion:LayoutControl.UserOptionsView>
+        </syncfusion:LayoutControl>
+    </Grid>
+</syncfusion:ChromelessWindow>

Custom Printing/PrintingDemo/MainWindow.xaml

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+#region Copyright Syncfusion Inc. 2001 - 2018
+// Copyright Syncfusion Inc. 2001 - 2018. All rights reserved.
+// Use of this code is subject to the terms of our license.
+// A copy of the current license can be obtained at any time by e-mailing
+// licensing@syncfusion.com. Any infringement will be prosecuted under
+// applicable laws. 
+#endregion
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+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;
+using Syncfusion.Windows.Shared;
+using Syncfusion.UI.Xaml.TreeGrid.Converter;
+using Syncfusion.Pdf.Grid;
+using Syncfusion.Pdf.Graphics;
+using Syncfusion.Pdf;
+using Microsoft.Win32;
+using System.IO;
+using System.Diagnostics;
+
+namespace PrintingDemo
+{
+    /// <summary>
+    /// Interaction logic for MainWindow.xaml
+    /// </summary>
+    public partial class MainWindow : ChromelessWindow
+    {
+        public MainWindow()
+        {
+            InitializeComponent();          
+        }
+    }
+}