文本在WPF RichTextBox的自动更换 [英] automatic replacement of text in wpf richtextbox

问题描述

我有一个WPF .NET 4的C＃的RichTextBox ，我想在与其他字符的文本框替换某些字符，这是发生在的KeyUp 事件。

I have a WPF .NET 4 C# RichTextBox and I'm wanting to replace certain characters within that text box with other characters, this is to happen on the KeyUp event.

我试图做到的，是全词，例如替换首字母缩写词：
PC =个人电脑
SC =星际争霸
等等...

What I'm trying to achieve is replace acronyms with full words, e.g.:
pc = personal computer
sc = starcraft
etc...

我已经看了一些类似的主题，但任何事情我发现一直没有成功我的方案。

I've looked a few similar threads, but anything I've found hasn't been successful in my scenario.

最后，我希望能够与缩略语表做到这一点。不过，我在使用，甚至取代单一的首字母缩写的问题，任何人都可以帮忙吗？

Ultimately, I'd like to be able to do this with a list of acronyms. However, I'm having issues with even replacing a single acronym, can anyone help?

推荐答案

由于 System.Windows.Controls.RichTextBox 不具有属性文字来检测它的价值，你可能会使用其检测值以下

Because System.Windows.Controls.RichTextBox does not have a property for Text to detect its value, you may detect its value using the following

string _Text = new TextRange(richTextBox1.Document.ContentStart, richTextBox1.Document.ContentEnd).Text;

然后，您可以更改 _text ，并使用以下发布新的字符串

Then, you may change _Text and post the new string using the following

_Text = _Text.Replace("pc", "Personal Computer");
if (_Text != new TextRange(richTextBox1.Document.ContentStart, richTextBox1.Document.ContentEnd).Text)
{
new TextRange(richTextBox1.Document.ContentStart, richTextBox1.Document.ContentEnd).Text = _Text;
}

所以，它看起来会像这样

So, it'd look like this

string _Text = new TextRange(richTextBox1.Document.ContentStart, richTextBox1.Document.ContentEnd).Text;
_Text = _Text.Replace("pc", "Personal Computer"); // Replace pc with Personal Computer
if (_Text != new TextRange(richTextBox1.Document.ContentStart, richTextBox1.Document.ContentEnd).Text)
{
new TextRange(richTextBox1.Document.ContentStart, richTextBox1.Document.ContentEnd).Text = _Text; // Change the current text to _Text
}

备注：除了使用 Text.Replace（下称电脑，个人电脑）; ，你可以声明一个列表与LT;字符串＆GT; 中保存字符，而其替代品

Remark: Instead of using Text.Replace("pc", "Personal Computer"); you may declare a List<String> in which you save the characters and its replacements

示例：

    List<string> _List = new List<string>();
    private void richTextBox1_TextChanged(object sender, TextChangedEventArgs e)
    {

        string _Text = new TextRange(richTextBox1.Document.ContentStart, richTextBox1.Document.ContentEnd).Text;
        for (int count = 0; count < _List.Count; count++)
        {
            string[] _Split = _List[count].Split(','); //Separate each string in _List[count] based on its index
            _Text = _Text.Replace(_Split[0], _Split[1]); //Replace the first index with the second index
        }
        if (_Text != new TextRange(richTextBox1.Document.ContentStart, richTextBox1.Document.ContentEnd).Text)
        {
        new TextRange(richTextBox1.Document.ContentStart, richTextBox1.Document.ContentEnd).Text = _Text;
        }
    }

    private void Window_Loaded(object sender, RoutedEventArgs e)
    {
        // The comma will be used to separate multiple items
        _List.Add("pc,Personal Computer");
        _List.Add("sc,Star Craft");

    }

谢谢，
我希望对您有所帮助：）

Thanks,
I hope you find this helpful :)

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