What library to use to create a document editor?

Question

Good afternoon. What library should I use to create a document editor on C# and WPF? Is there a library to create an editor similar to MS word? Where will the A4 sheets be located (I'm interested in splitting the table into several pages, I don't quite understand how this can be done).

Answer 1

You could try the following code.

<Window.CommandBindings>
        <CommandBinding Command="ApplicationCommands.Open" Executed="Open_Executed" />
        <CommandBinding Command="ApplicationCommands.Save" Executed="Save_Executed" />
    </Window.CommandBindings>
    <DockPanel>
        <ToolBar DockPanel.Dock="Top">
            <Button Command="ApplicationCommands.Open">
                <Image Source="C:\...\WpfApp1\folder.png" Width="16" Height="16" />
            </Button>
            <Button Command="ApplicationCommands.Save">
                <Image Source="C:\...\WpfApp1\save.png" Width="16" Height="16" />
            </Button>
            <Separator />
            <ToggleButton Command="EditingCommands.ToggleBold" Name="btnBold">
                <Image Source="C:\...\WpfApp1\blod.png" Width="16" Height="16" />
            </ToggleButton>
            <ToggleButton Command="EditingCommands.ToggleItalic" Name="btnItalic">
                <Image Source="C:\...\WpfApp1\italic.png" Width="16" Height="16" />
            </ToggleButton>
            <ToggleButton Command="EditingCommands.ToggleUnderline" Name="btnUnderline">
                <Image Source="C:\...\WpfApp1\underline.png" Width="16" Height="16" />
            </ToggleButton>
            <Separator />
<ToggleButton Click="btnPrint_Click"  Name="btnPrint">
                <Image Source="C:\...\WpfApp1\printer.png" Width="24" Height="18" />
            </ToggleButton>
            <Separator />
            <ComboBox Name="cmbFontFamily" Width="150" SelectionChanged="cmbFontFamily_SelectionChanged" />
            <ComboBox Name="cmbFontSize" Width="50" IsEditable="True" TextBoxBase.TextChanged="cmbFontSize_TextChanged" />
        </ToolBar>
        <RichTextBox Name="rtbEditor" SelectionChanged="rtbEditor_SelectionChanged" />
    </DockPanel>

using System;
using System.Linq;
using System.Collections.Generic;
using System.IO;
using System.Windows;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using Microsoft.Win32;
using System.Windows.Controls;

namespace WpfApp1
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            cmbFontFamily.ItemsSource = Fonts.SystemFontFamilies.OrderBy(f => f.Source);
            cmbFontSize.ItemsSource = new List<double>() { 8, 9, 10, 11, 12, 14, 16, 18, 20, 22, 24, 26, 28, 36, 48, 72 };
        }

        private void rtbEditor_SelectionChanged(object sender, RoutedEventArgs e)
        {
            object temp = rtbEditor.Selection.GetPropertyValue(Inline.FontWeightProperty);
            btnBold.IsChecked = (temp != DependencyProperty.UnsetValue) && (temp.Equals(FontWeights.Bold));
            temp = rtbEditor.Selection.GetPropertyValue(Inline.FontStyleProperty);
            btnItalic.IsChecked = (temp != DependencyProperty.UnsetValue) && (temp.Equals(FontStyles.Italic));
            temp = rtbEditor.Selection.GetPropertyValue(Inline.TextDecorationsProperty);
            btnUnderline.IsChecked = (temp != DependencyProperty.UnsetValue) && (temp.Equals(TextDecorations.Underline));

            temp = rtbEditor.Selection.GetPropertyValue(Inline.FontFamilyProperty);
            cmbFontFamily.SelectedItem = temp;
            temp = rtbEditor.Selection.GetPropertyValue(Inline.FontSizeProperty);
            cmbFontSize.Text = temp.ToString();
        }

        private void Open_Executed(object sender, ExecutedRoutedEventArgs e)
        {
            OpenFileDialog dlg = new OpenFileDialog();
            dlg.Filter = "Rich Text Format (*.rtf)|*.rtf|All files (*.*)|*.*";
            if (dlg.ShowDialog() == true)
            {
                FileStream fileStream = new FileStream(dlg.FileName, FileMode.Open);
                TextRange range = new TextRange(rtbEditor.Document.ContentStart, rtbEditor.Document.ContentEnd);
                range.Load(fileStream, DataFormats.Rtf);
            }
        }

        private void Save_Executed(object sender, ExecutedRoutedEventArgs e)
        {
            SaveFileDialog dlg = new SaveFileDialog();
            dlg.Filter = "Rich Text Format (*.rtf)|*.rtf|All files (*.*)|*.*";
            if (dlg.ShowDialog() == true)
            {
                FileStream fileStream = new FileStream(dlg.FileName, FileMode.Create);
                TextRange range = new TextRange(rtbEditor.Document.ContentStart, rtbEditor.Document.ContentEnd);
                range.Save(fileStream, DataFormats.Rtf);
            }
        }

        private void cmbFontFamily_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (cmbFontFamily.SelectedItem != null)
                rtbEditor.Selection.ApplyPropertyValue(Inline.FontFamilyProperty, cmbFontFamily.SelectedItem);
        }

        private void cmbFontSize_TextChanged(object sender, TextChangedEventArgs e)
        {
            rtbEditor.Selection.ApplyPropertyValue(Inline.FontSizeProperty, cmbFontSize.Text);
        }
 private void btnPrint_Click(object sender, RoutedEventArgs e)
        {
           
                PrintCommand();
            

        }
        private void PrintCommand()
        {
            PrintDialog pd = new PrintDialog();
            if ((pd.ShowDialog() == true))
            {
                pd.PrintVisual(rtbEditor as Visual, "printing as visual");
                pd.PrintDocument((((IDocumentPaginatorSource)rtbEditor.Document).DocumentPaginator), "printing as paginator");
            }
        }
    }
}

The result:

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Answer 2

All major third party vendors sell their rich text editor controls with the features that you might want. You can play with their sample projects and talk to their presales team. Then you can decide which to purchase.

For example, you can find one from Telerik.

Search engines can give you more options.