RichTextBox拼写检查

时间：2014-11-20 00:19:30

标签： c# wpf richtextbox spell-checking

我有一个RichTextBox，我想添加一个功能。基本上我启用了SpellCheck.isEnabled = True，所以每当我拼错一些东西时，都会显示红色的波浪线。

我要添加的功能是＆＃34;添加Word＆＃34;特征。基本上我正在关注这个Tutorial，它向您展示了如何做到这一点。本教程使用的是WPF TextBox，而不是WPF RichTextBox，因此我所做的就是尽力使其适用于WPF RichTextBox。我的代码是：

private void ctrl_RtfText_ContextMenuOpening(object sender, ContextMenuEventArgs e)
{
    int index = 0;
    this.ctrl_RtfText.ContextMenu.Items.Clear(); //Clearing the existing items
    //Getting the spellcheck suggestions.
    SpellingError spellingError = this.ctrl_RtfText.GetSpellingError(this.ctrl_RtfText.CaretPosition);
    if (spellingError != null && spellingError.Suggestions.Count() >= 1)
    {
        //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.ctrl_RtfText;
            this.ctrl_RtfText.ContextMenu.Items.Insert(index, menuItem);
            index++;
        }
        Separator seperator = new Separator();
        this.ctrl_RtfText.ContextMenu.Items.Insert(index, seperator);
        index++;
        //Adding the IgnoreAll menu item
        MenuItem IgnoreAllMenuItem = new MenuItem();
        IgnoreAllMenuItem.Header = "Ignore All";
        IgnoreAllMenuItem.Command = EditingCommands.IgnoreSpellingError;
        IgnoreAllMenuItem.CommandTarget = this.ctrl_RtfText;
        this.ctrl_RtfText.ContextMenu.Items.Insert(index, IgnoreAllMenuItem);
        index++;
    }
    else
    {
        //No Suggestions found, add a disabled NoSuggestions menuitem.
        MenuItem menuItem = new MenuItem();
        menuItem.Header = "No Suggestions";
        menuItem.IsEnabled = false;
        this.ctrl_RtfText.ContextMenu.Items.Insert(index, menuItem);
        index++;
    }
    //.Net 4.0 Supports CustomDictionaries, Option for Adding to dictionary.
    TextPointer selectionStart = ctrl_RtfText.Document.ContentStart;
    if (!(this.ctrl_RtfText.Selection.IsEmpty))
    {
        Separator seperator1 = new Separator();
        this.ctrl_RtfText.ContextMenu.Items.Insert(index, seperator1);
        index++;
        MenuItem AddToDictionary = new MenuItem();
        AddToDictionary.Header = "Add to Dictionary";
        //Getting the word to add
        this.ctrl_RtfText.GetSpellingErrorRange(selectionStart);
        //Ignoring the added word.
        AddToDictionary.Command = EditingCommands.IgnoreSpellingError;
        AddToDictionary.CommandTarget = this.ctrl_RtfText;
        AddToDictionary.Click += (object o, RoutedEventArgs rea) =>
        {
            this.AddToDictionary(this.ctrl_RtfText.Selection.Text);
        };
        this.ctrl_RtfText.ContextMenu.Items.Insert(index, AddToDictionary);
        index++;
    }

    //Common Edit MenuItems.
    Separator seperator2 = new Separator();
    this.ctrl_RtfText.ContextMenu.Items.Insert(index, seperator2);
    index++;
    //Cut
    MenuItem cutMenuItem = new MenuItem();
    cutMenuItem.Command = ApplicationCommands.Cut;
    this.ctrl_RtfText.ContextMenu.Items.Insert(index, cutMenuItem);
    index++;
    //Copy
    MenuItem copyMenuItem = new MenuItem();
    copyMenuItem.Command = ApplicationCommands.Copy;
    this.ctrl_RtfText.ContextMenu.Items.Insert(index, copyMenuItem);
    index++;
    //Paste
    MenuItem pasteMenuItem = new MenuItem();
    pasteMenuItem.Command = ApplicationCommands.Paste;
    this.ctrl_RtfText.ContextMenu.Items.Insert(index, pasteMenuItem);
    index++;
    Separator seperator3 = new Separator();
    this.ctrl_RtfText.ContextMenu.Items.Insert(index, seperator3);
    index++;
    //Delete
    MenuItem deleteMenuItem = new MenuItem();
    deleteMenuItem.Command = ApplicationCommands.Delete;
    this.ctrl_RtfText.ContextMenu.Items.Insert(index, deleteMenuItem);
    index++;
    Separator seperator4 = new Separator();
    this.ctrl_RtfText.ContextMenu.Items.Insert(index, seperator4);
    index++;
    //Select All
    MenuItem selectAllMenuItem = new MenuItem();
    selectAllMenuItem.Command = ApplicationCommands.SelectAll;
    this.ctrl_RtfText.ContextMenu.Items.Insert(index, selectAllMenuItem);
    index++;
}
//Method to Add text to Dictionary
private void AddToDictionary(string entry)
{
    using (StreamWriter streamWriter = new StreamWriter(@"C:\Users\xxx\Desktop\New folder (2)\MyCustomDictionary.lex", true))
    {
        streamWriter.WriteLine(entry);
    }
}

现在问题：

基本上是拼写检查器，当拼写检查器拼写错误时，右键单击该单词时，会显示上下文菜单并显示建议。用户可以选择其中一个建议和单词修复。这一切都发生在用户不需要突出显示该单词然后选择建议的情况下。让我说清楚：

enter image description here

用户点击首选建议并进行更正。现在我的代码基本上只显示＆＃34;添加Word＆＃34;选择文本时的功能：

enter image description here

我想要它，就像上一张图​​片一样，当出现错误时，＆＃34;添加Word＆＃34;功能应该与其他建议等一起出现。

2 个答案:

答案 0 :(得分：0)

下载EN_US.lang，然后让它读取文件，然后添加单词 评论，如果你想让我告诉你如何做到这一点！

答案 1 :(得分：0)

要修复此错误，请替换

SpellingError spellingError = this.ctrl_RtfText.GetSpellingError(this.ctrl_RtfText.CaretPosition);
if (spellingError != null && spellingError.Suggestions.Count() >= 1)
{
    //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.ctrl_RtfText;
        this.ctrl_RtfText.ContextMenu.Items.Insert(index, menuItem);
        index++;
    }
    Separator seperator = new Separator();
    this.ctrl_RtfText.ContextMenu.Items.Insert(index, seperator);
    index++;
    //Adding the IgnoreAll menu item
    MenuItem IgnoreAllMenuItem = new MenuItem();
    IgnoreAllMenuItem.Header = "Ignore All";
    IgnoreAllMenuItem.Command = EditingCommands.IgnoreSpellingError;
    IgnoreAllMenuItem.CommandTarget = this.ctrl_RtfText;
    this.ctrl_RtfText.ContextMenu.Items.Insert(index, IgnoreAllMenuItem);
    index++;
}
else
{
    //No Suggestions found, add a disabled NoSuggestions menuitem.
    MenuItem menuItem = new MenuItem();
    menuItem.Header = "No Suggestions";
    menuItem.IsEnabled = false;
    this.ctrl_RtfText.ContextMenu.Items.Insert(index, menuItem);
    index++;
}
//.Net 4.0 Supports CustomDictionaries, Option for Adding to dictionary.
TextPointer selectionStart = ctrl_RtfText.Document.ContentStart;
if (!(this.ctrl_RtfText.Selection.IsEmpty))
{
    Separator seperator1 = new Separator();
    this.ctrl_RtfText.ContextMenu.Items.Insert(index, seperator1);
    index++;
    MenuItem AddToDictionary = new MenuItem();
    AddToDictionary.Header = "Add to Dictionary";
    //Getting the word to add
    this.ctrl_RtfText.GetSpellingErrorRange(selectionStart);
    //Ignoring the added word.
    AddToDictionary.Command = EditingCommands.IgnoreSpellingError;
    AddToDictionary.CommandTarget = this.ctrl_RtfText;
    AddToDictionary.Click += (object o, RoutedEventArgs rea) =>
    {
        this.AddToDictionary(this.ctrl_RtfText.Selection.Text);
    };
    this.ctrl_RtfText.ContextMenu.Items.Insert(index, AddToDictionary);
    index++;
}
//REST OF THE CODE

与

SpellingError spellingError = this.ctrl_RtfText.GetSpellingError(this.ctrl_RtfText.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.ctrl_RtfText;
        this.ctrl_RtfText.ContextMenu.Items.Add(menuItem);
    }
    if(this.ctrl_RtfText.ContextMenu.Items.Count == 0)
    {
         //No Suggestions found, add a disabled NoSuggestions menuitem.
         MenuItem menuItem = new MenuItem();
         menuItem.Header = "No Suggestions";
         menuItem.IsEnabled = false;
         this.ctrl_RtfText.ContextMenu.Items.Add(menuItem);
    }
    Separator seperator = new Separator();
    this.ctrl_RtfText.ContextMenu.Items.Add(seperator);
    //Adding the IgnoreAll menu item
    MenuItem IgnoreAllMenuItem = new MenuItem();
    IgnoreAllMenuItem.Header = "Ignore All";
    IgnoreAllMenuItem.Command = EditingCommands.IgnoreSpellingError;
    IgnoreAllMenuItem.CommandTarget = this.ctrl_RtfText;
    this.ctrl_RtfText.ContextMenu.Items.Add(IgnoreAllMenuItem);
    Separator seperator1 = new Separator();
    this.ctrl_RtfText.ContextMenu.Items.Add(seperator1);

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

这是一个快速编辑。不确定它是否在没有一些小调整的情况下运行。

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