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It's not too tricky to reimplement the RichTextBox context menu with spelling suggestions, Cut, Paste, etc.

使用拼写建议，剪切，粘贴等重新实现RichTextBox上下文菜单并不太棘手。

Hook up the context menu opening event as follows:

连接上下文菜单打开事件，如下所示：

AddHandler(RichTextBox.ContextMenuOpeningEvent, new ContextMenuEventHandler(RichTextBox_ContextMenuOpening), true);

Within the event handler build the context menu as you need. You can recreate the existing context menu menu items with the following:

在事件处理程序中根据需要构建上下文菜单。您可以使用以下内容重新创建现有的上下文菜单项：

private IList<MenuItem> GetSpellingSuggestions()
{
    List<MenuItem> spellingSuggestions = new List();
    SpellingError spellingError = myRichTextBox.GetSpellingError(myRichTextBox.CaretPosition);
    if (spellingError != null)
    {
        foreach (string str in spellingError.Suggestions)
        {
            MenuItem mi = new MenuItem();
            mi.Header = str;
            mi.FontWeight = FontWeights.Bold;
            mi.Command = EditingCommands.CorrectSpellingError;
            mi.CommandParameter = str;
            mi.CommandTarget = myRichTextBox;
            spellingSuggestions.Add(mi);
        }
    }
    return spellingSuggestions;
}

private IList<MenuItem> GetStandardCommands()
{
    List<MenuItem> standardCommands = new List();

    MenuItem item = new MenuItem();
    item.Command = ApplicationCommands.Cut;
    standardCommands.Add(item);

    item = new MenuItem();
    item.Command = ApplicationCommands.Copy;
    standardCommands.Add(item);

    item = new MenuItem();
    item.Command = ApplicationCommands.Paste;
    standardCommands.Add(item);

    return standardCommands;
}

If there are spelling errors, you can create Ignore All with:

如果存在拼写错误，您可以使用以下命令创建全部忽略：

MenuItem ignoreAllMI = new MenuItem();
ignoreAllMI.Header = "Ignore All";
ignoreAllMI.Command = EditingCommands.IgnoreSpellingError;
ignoreAllMI.CommandTarget = textBox;
newContextMenu.Items.Add(ignoreAllMI);

Add separators as required. Add those to the new context menu's items, and then add your shiny new MenuItems.

根据需要添加分隔符。将它们添加到新的上下文菜单的项目，然后添加闪亮的新MenuItems。

I'm going to keep looking for a way to obtain the actual context menu though, as this is relevant to something I'll be working on in the near future.

我将继续寻找获得实际上下文菜单的方法，因为这与我将在不久的将来工作的内容相关。