使用正则表达式去除多余注释及冗余数字位,关键代码:

            string pattern = @"\b(\d+)\.(\d{1})\d+([\,\s]?)\b";
            string temp = Regex.Replace(oldContent, pattern, @"$1.$2$3");
            temp = Regex.Replace(temp, @"<!--.*-->", "");
            temp = Regex.Replace(temp, @"[\s| ]*\r","");

运行效果截图:


// ReplaceWindow.xaml

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="600" Width="800">
   
        将XAML内容复制到下面文本框内，然后点替换，在“结果”文本框中得到新内容。
        替换
       
       
        替换前内容：
        结果：
       
       
                   
       
       
        效果预览：
   

// ReplaceWindow.xaml.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
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;
using System.IO;
using System.Text.RegularExpressions;

namespace BrawDraw.Com.AIXamlConverter
{
    ///

        private void btnReplace_Click(object sender, RoutedEventArgs e)
        {
            string ldContent = txtBoxOldContent.Text;
            //string pattern = @"(\d+)\.(\d)\d{5,}([\,\s]?)";
            string pattern = @"\b(\d+)\.(\d{1})\d+([\,\s]?)\b";
            string temp = Regex.Replace(oldContent, pattern, @"$1.$2$3");
            temp = Regex.Replace(temp, @"<!--.*-->", "");
            temp = Regex.Replace(temp, @"[\s| ]*\r","");
            txtBoxResultContent.Text = temp;
            try
            {
                //下面的代码用于预览效果显示:
                System.IO.StringReader stringReader = new System.IO.StringReader(temp);
                System.Xml.XmlReader xmlReader = System.Xml.XmlReader.Create(stringReader);
                UIElement uie = (UIElement)System.Windows.Markup.XamlReader.Load(xmlReader);
                spResult.Children.Add(uie);
                borderResult.BorderBrush = Brushes.Transparent;
            }
            catch (Exception exc)
            {
                MessageBox.Show(string.Format("出错了，错误是：\r\n{0}", exc.Message));
            }
        }
    }
}