Open a file and replace strings in C#

Question

I\'m trying to figure out the best way to open an existing file and replace all strings that match a declared string with a new string, save it then close.

Suggestio

Answer 1

using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;

namespace DevExpressFileEditing
{
    class Program
    {
        static List _files;
        private static Dictionary _replaceList;

        static void Main()
        {
            _files = new List();
            _replaceList = new Dictionary();

            Console.WriteLine("Dark directory searching");
            SearchFilesInDirectories(new DirectoryInfo(@"C:\Sourcebank\Dark"));

            Console.WriteLine("Light directory searching");
            SearchFilesInDirectories(new DirectoryInfo(@"C:\Sourcebank\Light"));

            Console.WriteLine("{0} files found", _files.Count.ToString(CultureInfo.InvariantCulture));

            Console.WriteLine("Replace dictinary creating");
            CreateReplaceList();
            Console.WriteLine("{0} item added", _replaceList.Count.ToString(CultureInfo.InvariantCulture));

            Console.Write("Replacement doing");
            for (int i = 0; i < _files.Count; i++)
            {
                var fileInfo = _files[i];
                Console.CursorLeft = 0;
                Console.Write("{0} of {1}", i.ToString(CultureInfo.InvariantCulture), _files.Count.ToString(CultureInfo.InvariantCulture));
                ReplaceInFile(fileInfo.FullName);
            }
            Console.CursorLeft = 0;
            Console.Write("Replacement done");
        }

        private static void SearchFilesInDirectories(DirectoryInfo dir)
        {
            if (!dir.Exists) return;

            foreach (DirectoryInfo subDirInfo in dir.GetDirectories())
                SearchFilesInDirectories(subDirInfo);

            foreach (var fileInfo in dir.GetFiles())
                _files.Add(fileInfo);
        }

        private static void CreateReplaceList()
        {
            _replaceList.Add("Color=\"#FFF78A09\"", "Color=\"{DynamicResource AccentColor}\"");
            _replaceList.Add("Color=\"{StaticResource ColorHot}\"", "Color=\"{DynamicResource AccentColor}\"");
            _replaceList.Add("Color=\"#FFCC0000\"", "Color=\"{DynamicResource AccentColor}\"");
            _replaceList.Add("To=\"#FFCC0000\"", "To=\"{DynamicResource AccentColor}\"");
            _replaceList.Add("To=\"#FFF78A09\"", "To=\"{DynamicResource AccentColor}\"");
            _replaceList.Add("Background=\"#FFF78A09\"", "Background=\"{DynamicResource Accent}\"");
            _replaceList.Add("Foreground=\"#FFF78A09\"", "Foreground=\"{DynamicResource Accent}\"");
            _replaceList.Add("BorderBrush=\"#FFF78A09\"", "BorderBrush=\"{DynamicResource Accent}\"");
            _replaceList.Add("Value=\"#FFF78A09\"", "Value=\"{DynamicResource Accent}\"");
            _replaceList.Add("Fill=\"#FFF78A09\"", "Fill=\"{DynamicResource Accent}\"");
        }

        public static void ReplaceInFile(string filePath)
        {
            string content;
            using (var reader = new StreamReader(filePath))
            {
                content = reader.ReadToEnd();
                reader.Close();
            }

            content = _replaceList.Aggregate(content, (current, item) => current.Replace(item.Key, item.Value));

            using (var writer = new StreamWriter(filePath))
            {
                writer.Write(content);
                writer.Close();
            }
        }
    }
}