Change Current Directory To Execute External EXE File

Sometimes you need to trigger an exe file not within your current application directory.
You may change your current directory ( one of the easiest method ).
Yet you have to change back your directory after you done the execution process.

//Set the current directory.
Directory.SetCurrentDirectory(my-dir-variable);

ProcessStartInfo startInfo = new ProcessStartInfo();

startInfo.FileName = "WINWORD.EXE";

startInfo.Arguments = my-file-name-variable;
 

Process.Start(startInfo);

Get Files From SubFolder Recursively

Get files from directory (including all subdirectories)

If you want to search also in subfolders use parameter SearchOption.A­llDirectories.

string[] filePaths = Directory.GetFiles(@"c:\test\", "*.bmp",
SearchOption.AllDirectories);

returns:
"c:\test\test.BMP"
"c:\test\test2\test2.BMP"

for Folder:

string[] folders = System.IO.Directory.GetDirectories(@"C:\test\","*", System.IO.SearchOption.AllDirectories);

C# List.Find() List.Exist() and Predicates

Example 1:

List myObjects = new List();

SomeObject desiredObject =
  myObjects.Find(delegate(SomeObject o) { return o.Id == desiredId; });


Example 2:
Source from http://msdn.microsoft.com/en-us/library/x0b5b5bc.aspx

using System;
using System.Collections.Generic;

public class Example
{
  public static void Main()
  {
      List<string> dinosaurs = new List<string>();

      dinosaurs.Add("Compsognathus");
      dinosaurs.Add("Amargasaurus");
      dinosaurs.Add("Oviraptor");
      dinosaurs.Add("Velociraptor");
      dinosaurs.Add("Deinonychus");
      dinosaurs.Add("Dilophosaurus");
      dinosaurs.Add("Gallimimus");
      dinosaurs.Add("Triceratops");

      Console.WriteLine();
      foreach(string dinosaur in dinosaurs)
      {
          Console.WriteLine(dinosaur);
      }

      Console.WriteLine("\nTrueForAll(EndsWithSaurus): {0}",
          dinosaurs.TrueForAll(EndsWithSaurus));

      Console.WriteLine("\nFind(EndsWithSaurus): {0}",
          dinosaurs.Find(EndsWithSaurus));

      Console.WriteLine("\nFindLast(EndsWithSaurus): {0}",
          dinosaurs.FindLast(EndsWithSaurus));

      Console.WriteLine("\nFindAll(EndsWithSaurus):");
      List<string> sublist = dinosaurs.FindAll(EndsWithSaurus);

      foreach(string dinosaur in sublist)
      {
          Console.WriteLine(dinosaur);
      }

      Console.WriteLine(
          "\n{0} elements removed by RemoveAll(EndsWithSaurus).",
          dinosaurs.RemoveAll(EndsWithSaurus));

      Console.WriteLine("\nList now contains:");
      foreach(string dinosaur in dinosaurs)
      {
          Console.WriteLine(dinosaur);
      }

      Console.WriteLine("\nExists(EndsWithSaurus): {0}",
          dinosaurs.Exists(EndsWithSaurus));
  }

  // Search predicate returns true if a string ends in "saurus".
  private static bool EndsWithSaurus(String s)
  {
      if ((s.Length > 5) &&
          (s.Substring(s.Length - 6).ToLower() == "saurus"))
      {
          return true;
      }
      else
      {
          return false;
      }
  }
}

/* This code example produces the following output:

Compsognathus
Amargasaurus
Oviraptor
Velociraptor
Deinonychus
Dilophosaurus
Gallimimus
Triceratops

TrueForAll(EndsWithSaurus): False

Find(EndsWithSaurus): Amargasaurus

FindLast(EndsWithSaurus): Dilophosaurus

FindAll(EndsWithSaurus):
Amargasaurus
Dilophosaurus

2 elements removed by RemoveAll(EndsWithSaurus).

List now contains:
Compsognathus
Oviraptor
Velociraptor
Deinonychus
Gallimimus
Triceratops

Exists(EndsWithSaurus): False
*/