c＃标签未显示正确的内容

Question

我有label.content ...

的问题

内容是＆＃34; my_text_formated＆＃34;但他表示＆＃34; mytext_formated＆＃34;

为什么这样做？ ：/

（我使用C＃wpf编程，我使用的是VisualStudio 15专业版）

重现代码（如果尝试，您只需要点击按钮）;

XAML

        <Button x:Name="btnFormat" Content="formatText" HorizontalAlignment="Left" Margin="50,118,0,0" VerticalAlignment="Top" Width="75" Click="btnFormat_Click"/>
        <Label x:Name="lblResult" Content="defaultResult" HorizontalAlignment="Left" Margin="160,112,0,0" VerticalAlignment="Top"/>
        <TextBox x:Name="txtBoxText" HorizontalAlignment="Left" Height="23" Margin="50,75,0,0" TextWrapping="Wrap" Text="my text formated" VerticalAlignment="Top" Width="120"/>

XAML.CS

private void btnFormat_Click(object sender, RoutedEventArgs e)
    {
        lblResult.Content = toFormatString(txtBoxText.Text);
        Console.WriteLine("AFTER_SET_CONTENT =>" + lblResult.Content);
    }

    public string toFormatString(string text)
    {
        List<String> FormatList = text.Split(' ').ToList();
        String result = "";
        foreach (String s in FormatList)
        {
            if (!String.IsNullOrEmpty(result))
                result += "_";
            result += s;
        }
        Console.WriteLine("IN_FORMAT_METHOD =>" + result);
        return result;
    }

输出结果：

控制台：

IN_FORMAT_METHOD =＆gt; my_text_formated

AFTER_SET_CONTENT =＆gt; my_text_formated

Windows： mytext_formated