WPF Custom Dictionary

adding custom dictionary in wpf 

MainWoindow.xaml file code

<Window x:Class="WpfApplication2.MainWindow"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

        xmlns:sys="clr-namespace:System;assembly=system"

        Title="Custom Dictionaries Example">

    <Grid Margin="0,0,0,-6">
        <RichTextBox Name="RichTextBox1" HorizontalAlignment="Left" SpellCheck.IsEnabled="True" Height="77" Margin="31,8,0,0" VerticalAlignment="Top" Width="704">
            <SpellCheck.CustomDictionaries>
                <sys:Uri>pack://application:,,,/dictionary.lex</sys:Uri>
            </SpellCheck.CustomDictionaries>
            <RichTextBox.ContextMenu>
                <ContextMenu></ContextMenu>
            </RichTextBox.ContextMenu>
        </RichTextBox>
    </Grid>

</Window>

MainWoindow.xaml.cs file


using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
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 WpfApplication2
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            RichTextBox1.ContextMenuOpening += new ContextMenuEventHandler(rtfRitchTxtbox_ContextMenuOpening);
        }
        private void rtfRitchTxtbox_ContextMenuOpening(object sender, ContextMenuEventArgs e)
        {
            RichTextBox rtb = sender as RichTextBox;
            var selection = RichTextBox1.Selection;
            if (rtb == null)
            {
                return;
            }

           
            ContextMenu menu = new ContextMenu();
            rtb.ContextMenu = menu;
            MenuItem item = new MenuItem();

            SpellingError spellingError = this.RichTextBox1.GetSpellingError(this.RichTextBox1.CaretPosition);
            if (spellingError != null)
            {
                //Creating the suggestions menu items.
                foreach (string suggestion in spellingError.Suggestions)
                {
                    MenuItem menuItem = new MenuItem();
                    menuItem.Header = suggestion;
                    menuItem.FontWeight = FontWeights.Bold;
                    menuItem.Command = EditingCommands.CorrectSpellingError;
                    menuItem.CommandParameter = suggestion;
                    menuItem.CommandTarget = this.RichTextBox1;
                    this.RichTextBox1.ContextMenu.Items.Add(menuItem);
                }
                if (this.RichTextBox1.ContextMenu.Items.Count == 0)
                {
                    //No Suggestions found, add a disabled NoSuggestions menuitem.
                    MenuItem menuItem = new MenuItem();
                    menuItem.Header = "No Suggestions";
                    menuItem.IsEnabled = false;
                    this.RichTextBox1.ContextMenu.Items.Add(menuItem);
                }
                Separator seperator = new Separator();
                this.RichTextBox1.ContextMenu.Items.Add(seperator);
                //Adding the IgnoreAll menu item
                MenuItem IgnoreAllMenuItem = new MenuItem();
                IgnoreAllMenuItem.Header = "Ignore All";
                IgnoreAllMenuItem.Command = EditingCommands.IgnoreSpellingError;
                IgnoreAllMenuItem.CommandTarget = this.RichTextBox1;
                this.RichTextBox1.ContextMenu.Items.Add(IgnoreAllMenuItem);
                Separator seperator1 = new Separator();
                this.RichTextBox1.ContextMenu.Items.Add(seperator1);

                MenuItem AddToDictionary = new MenuItem();
                AddToDictionary.Header = "Add to Dictionary";
                //Getting the word to add
                var tr = this.RichTextBox1.GetSpellingErrorRange(this.RichTextBox1.CaretPosition);
                //Ignoring the added word.
                AddToDictionary.Command = EditingCommands.IgnoreSpellingError;
                AddToDictionary.CommandTarget = this.RichTextBox1;
                AddToDictionary.Click += (object o, RoutedEventArgs rea) =>
                {
                    this.AddToDictionary(tr.Text);
                };
                this.RichTextBox1.ContextMenu.Items.Add(AddToDictionary);
            }

            item = new MenuItem();
            item.Command = ApplicationCommands.Cut;
            menu.Items.Add(item);
            item = new MenuItem();
            item.Command = ApplicationCommands.Copy;
            menu.Items.Add(item);
            item = new MenuItem();
            item.Command = ApplicationCommands.Paste;
            menu.Items.Add(item);
           
            menu.PlacementTarget = rtb;
            menu.Placement = PlacementMode.RelativePoint;
            TextPointer position = rtb.Selection.End;
            if (position == null)
            {
                return;
            }
            Rect positionRect = position.GetCharacterRect(LogicalDirection.Forward);
            menu.HorizontalOffset = positionRect.X;
            menu.VerticalOffset = positionRect.Y; menu.IsOpen = true;
            e.Handled = true;
        }
        private void AddToDictionary(string text)
        {
            TextWriter tw = new StreamWriter(@"c:\users\viva\documents\visual studio 2013\Projects\WpfApplication2\WpfApplication2\dictionary.lex", true);
            tw.WriteLine(text);
            tw.Close();
        }
        protected void AddToDictionary(object o, RoutedEventArgs rea)
        {

        }
    }
}